Engine > Wiseco Pistons

HIGH-PERFORMANCE PISTONS FOR YAMAHA 4-STROKE

Wiseco logo

Features

  • Forged from high-silicon aluminum alloy for maximum strength and dependability
  • Wiseco offers a complete range of popular piston models and years for both trail and racing applications
  • Durability, longevity and increased horsepower
  • Innovative forging design and piston skirt provide maximum horsepower and torque
  • Contain all the necessary components for overboring or rebuilding your top end
  • Feature forged pistons, rings, wrist pins, circlips and top end gasket set
  • Cylinder sleeves must be purchased separately
  • Wiseco wrist pins are strong, lightweight and can be used with OEM pistons, too
  • Wiseco 2-cycle pistons include a wrist pin unless indicated
  • Each ring set is for one piston
  • See Wiseco ring buyer’s guide for details
  • Two high-strength, easy-to-install circlips are furnished with every piston
  • Additional inventory available to order

Images

HIGH-PERFORMANCE PISTONS FOR YAMAHA 4-STROKE



PK Kit

Part # Description Retail
0903-0565  FITS MODEL: WR450F 03-05 13.5:1 Hi-Compression. Nikasil Bore-Cylinder sleeving or replating required for oversizes, BORE(MM) X STROKE (MM): 95 x 63.4, DISPL. (CC): 449, BORE SIZE(MM): 95.0, OVERSIZE(MM): STD   $309.21 
0903-0564  FITS MODEL: YZ450F 06-07, BORE(MM) X STROKE (MM): 95 x 63, DISPL. (CC): 449, BORE SIZE(MM): 95.0, OVERSIZE(MM): STD   $288.50 
0903-0564  FITS MODEL: WR450F 06-07 12.5:1 Standard Compression. Nikasil Bore-Cylinder sleeving or replating required for oversizes, BORE(MM) X STROKE (MM): 95 x 63, DISPL. (CC): 449, BORE SIZE(MM): 95.0, OVERSIZE(MM): STD   $288.50 
0903-0566  FITS MODEL: YZ450F 06-07, BORE(MM) X STROKE (MM): 95 x 63.4, DISPL. (CC): 449, BORE SIZE(MM): 95.0, OVERSIZE(MM): STD   $308.71 
0903-0566  FITS MODEL: WR450F 06-07, 13.5:1 Hi-Compression. Nikasil Bore-Cylinder sleeving or replating required for oversizes, BORE(MM) X STROKE (MM): 95 x 63.4, DISPL. (CC): 449, BORE SIZE(MM): 95.0, OVERSIZE(MM): STD   $308.71 
0903-0565  FITS MODEL: YZ450F 03-05, BORE(MM) X STROKE (MM): 95 x 63.4, DISPL. (CC): 449, BORE SIZE(MM): 95.0, OVERSIZE(MM): STD   $309.21 
0903-0563  FITS MODEL: WR450F 03-05 12.5:1 Standard Compression. Nikasil Bore-Cylinder sleeving or replating required for oversizes, BORE(MM) X STROKE (MM): 95 x 63, DISPL. (CC): 449, BORE SIZE(MM): 95.0, OVERSIZE(MM): STD   $289.00 
0903-0563  FITS MODEL: YZ450F 03-05, BORE(MM) X STROKE (MM): 95 x 63, DISPL. (CC): 449, BORE SIZE(MM): 95.0, OVERSIZE(MM): STD   $289.00 
0903-0558  FITS MODEL: WR250F 05-07 13.5:1 Compression. Skirt Coated. 2 Ring. Race Only. Nikasil Bore-Cylinder sleeving or replating required for oversizes, BORE(MM) X STROKE (MM): 77 x 53.6, DISPL. (CC): 250, BORE SIZE(MM): 77.0, OVERSIZE(MM): STD   $280.84 
0903-0558  FITS MODEL: YZ250F 05-07, BORE(MM) X STROKE (MM): 77 x 53.6, DISPL. (CC): 250, BORE SIZE(MM): 77.0, OVERSIZE(MM): STD   $280.84 
0903-0559  FITS MODEL: WR250F 05-07, 12.5:1 Compression. Nikasil Bore-Cylinder sleeving or replating required for oversizes, BORE(MM) X STROKE (MM): 77 x 53.6, DISPL. (CC): 250, BORE SIZE(MM): 77.0, OVERSIZE(MM): STD   $220.06 
0903-0559  FITS MODEL: YZ250F 05-07, BORE(MM) X STROKE (MM): 77 x 53.6, DISPL. (CC): 250, BORE SIZE(MM): 77.0, OVERSIZE(MM): STD   $220.06 
0903-0561  FITS MODEL: YZ250F 01-04, +.75 Compression – Light Weight; +1.2 Compression – 2 ring, gas ported. Skirt Coated. Nikasil Bore-Cylinder sleeving or replating required for oversizes, BORE(MM) X STROKE (MM): 77 x 53.6, DISPL. (CC): 249, BORE SIZE(MM): 77.0, OVERSIZE(MM): STD   $280.84 
0903-0554  FITS MODEL: YZ250F/WR250F 01-04 12.7:1 Compression (0903-0554/0910-0573); 13.2:1 Compression (0910-0574), BORE(MM) X STROKE (MM): 77 x 53.6, DISPL. (CC): 249, BORE SIZE(MM): 77.0, OVERSIZE(MM): STD   $261.35 

Pistons

Part # Description Retail
variant  FITS MODEL: fits model, BORE(MM) X STROKE (MM): Bore(mm) x stroke (mm), DISPL. (CC): Displ. (cc), BORE SIZE(MM): bore size(mm), OVERSIZE(MM): Oversize(mm)   Not given 
0910-0368  FITS MODEL: TTR90E 03-06 11:1 Hi-Compression, BORE(MM) X STROKE (MM): 47 x 51.8, DISPL. (CC): 90, BORE SIZE(MM): 47.0, OVERSIZE(MM): STD   $108.47 
0910-0369  FITS MODEL: TTR90E 03-06 11:1 Hi-Compression, BORE(MM) X STROKE (MM): 47 x 51.8, DISPL. (CC): 92, BORE SIZE(MM): 47.5, OVERSIZE(MM): 0.50   $108.47 
0910-0370  FITS MODEL: TTR90E 03-06 11:1 Hi-Compression, BORE(MM) X STROKE (MM): 47 x 51.8, DISPL. (CC): 94, BORE SIZE(MM): 48.0, OVERSIZE(MM): 1.00   $108.47 
0910-0371  FITS MODEL: TTR90E 03-06 11:1 Hi-Compression, BORE(MM) X STROKE (MM): 47 x 51.8, DISPL. (CC): 102, BORE SIZE(MM): 50.0, OVERSIZE(MM): 3.00   $119.31 
0910-0372  FITS MODEL: TTR90E 03-06 11:1 Hi-Compression, BORE(MM) X STROKE (MM): 47 x 51.8, DISPL. (CC): 110, BORE SIZE(MM): 52 .0, OVERSIZE(MM): 5.00   $131.24 
4752M05400  FITS MODEL: TTR125 00-06 11:1 Compression, BORE(MM) X STROKE (MM): 54 x 54.5, DISPL. (CC): 123.7, BORE SIZE(MM): 54.0, OVERSIZE(MM): STD   $117.29 
4752M05450  FITS MODEL: TTR125 00-06 11:1 Compression, BORE(MM) X STROKE (MM): 54 x 54.5, DISPL. (CC): 123.7, BORE SIZE(MM): 54.5, OVERSIZE(MM): 0.5   $117.29 
4752M05500  FITS MODEL: TTR125 00-06 11:1 Compression, BORE(MM) X STROKE (MM): 54 x 54.5, DISPL. (CC): 123.7, BORE SIZE(MM): 55.0, OVERSIZE(MM): 1.0   $117.29 
4689M07300  FITS MODEL: TTR250 99-06 10.5:1 Compression, BORE(MM) X STROKE (MM): 73 x 59.6, DISPL. (CC): 249, BORE SIZE(MM): 73.0, OVERSIZE(MM): STD   $149.29 
4689M07350  FITS MODEL: TTR250 99-06 10.5:1 Compression, BORE(MM) X STROKE (MM): 73 x 59.6, DISPL. (CC): 249, BORE SIZE(MM): 73.5, OVERSIZE(MM): 0.5   $149.29 
4689M07400  FITS MODEL: TTR250 99-06 10.5:1 Compression, BORE(MM) X STROKE (MM): 73 x 59.6, DISPL. (CC): 249, BORE SIZE(MM): 74.0, OVERSIZE(MM): 1   $149.29 
0910-0573  FITS MODEL: YZ250F/WR250F 01-04 12.7:1 Compression (0903-0554/0910-0573); 13.2:1 Compression (0910-0574), BORE(MM) X STROKE (MM): 77 x 53.6, DISPL. (CC): 249, BORE SIZE(MM): 77.0, OVERSIZE(MM): STD   $200.47 
0910-0574  FITS MODEL: YZ250F/WR250F 01-04 12.7:1 Compression (0903-0554/0910-0573); 13.2:1 Compression (0910-0574), BORE(MM) X STROKE (MM): 77 x 53.6, DISPL. (CC): 262, BORE SIZE(MM): 79.0, OVERSIZE(MM): 2.0   $220.52 
0910-0806  FITS MODEL: YZ250F 01-04, +.75 Compression – Light Weight; +1.2 Compression – 2 ring, gas ported. Skirt Coated. Nikasil Bore-Cylinder sleeving or replating required for oversizes, BORE(MM) X STROKE (MM): 77 x 53.6, DISPL. (CC): 249, BORE SIZE(MM): 77.0, OVERSIZE(MM): STD   $220.52 
0910-0807  FITS MODEL: YZ250F 01-04, +.75 Compression – Light Weight; +1.2 Compression – 2 ring, gas ported. Skirt Coated. Nikasil Bore-Cylinder sleeving or replating required for oversizes, BORE(MM) X STROKE (MM): 77 x 53.6, DISPL. (CC): 263, BORE SIZE(MM): 79.00, OVERSIZE(MM): 2.00   $242.58 
0910-0808  FITS MODEL: YZ250F 05-07, BORE(MM) X STROKE (MM): 77 x 53.6, DISPL. (CC): 250, BORE SIZE(MM): 77.0, OVERSIZE(MM): STD   $157.87 
0910-0809  FITS MODEL: YZ250F 05-07, BORE(MM) X STROKE (MM): 77 x 53.6, DISPL. (CC): 263, BORE SIZE(MM): 79.0, OVERSIZE(MM): 2.00   $173.68 
0910-0808  FITS MODEL: WR250F 05-07, 12.5:1 Compression. Nikasil Bore-Cylinder sleeving or replating required for oversizes, BORE(MM) X STROKE (MM): 77 x 53.6, DISPL. (CC): 250, BORE SIZE(MM): 77.0, OVERSIZE(MM): STD   $157.87 
0910-0809  FITS MODEL: WR250F 05-07, 12.5:1 Compression. Nikasil Bore-Cylinder sleeving or replating required for oversizes, BORE(MM) X STROKE (MM): 77 x 53.6, DISPL. (CC): 263, BORE SIZE(MM): 79.0, OVERSIZE(MM): 2.00   $173.68 
0910-0810  FITS MODEL: YZ250F 05-07, BORE(MM) X STROKE (MM): 77 x 53.6, DISPL. (CC): 250, BORE SIZE(MM): 77.0, OVERSIZE(MM): STD   $220.52 
0910-0811  FITS MODEL: YZ250F 05-07, BORE(MM) X STROKE (MM): 77 x 53.6, DISPL. (CC): 263, BORE SIZE(MM): 79.0, OVERSIZE(MM): 2.00   $242.58 
0910-0810  FITS MODEL: WR250F 05-07 13.5:1 Compression. Skirt Coated. 2 Ring. Race Only. Nikasil Bore-Cylinder sleeving or replating required for oversizes, BORE(MM) X STROKE (MM): 77 x 53.6, DISPL. (CC): 250, BORE SIZE(MM): 77.0, OVERSIZE(MM): STD   $220.52 
0910-0373  FITS MODEL: WR450F 03-05 12.5:1 Standard Compression. Nikasil Bore-Cylinder sleeving or replating required for oversizes, BORE(MM) X STROKE (MM): 95 x 63, DISPL. (CC): 449, BORE SIZE(MM): 95.0, OVERSIZE(MM): STD   $205.53 
0910-0374  FITS MODEL: WR450F 03-05 12.5:1 Standard Compression. Nikasil Bore-Cylinder sleeving or replating required for oversizes, BORE(MM) X STROKE (MM): 95 x 63, DISPL. (CC): 449, BORE SIZE(MM): 97.0, OVERSIZE(MM): 2.00   $226.37 
0910-0375  FITS MODEL: YZ450F 03-05, BORE(MM) X STROKE (MM): 95 x 63.4, DISPL. (CC): 449, BORE SIZE(MM): 95.0, OVERSIZE(MM): STD   $226.37 
0910-0376  FITS MODEL: YZ450F 03-05, BORE(MM) X STROKE (MM): 95 x 63.4, DISPL. (CC): 449, BORE SIZE(MM): 97.0, OVERSIZE(MM): 2.00   $249.00 
0910-0375  FITS MODEL: WR450F 03-05 13.5:1 Hi-Compression. Nikasil Bore-Cylinder sleeving or replating required for oversizes, BORE(MM) X STROKE (MM): 95 x 63.4, DISPL. (CC): 449, BORE SIZE(MM): 95.0, OVERSIZE(MM): STD   $226.37 
0910-0376  FITS MODEL: WR450F 03-05 13.5:1 Hi-Compression. Nikasil Bore-Cylinder sleeving or replating required for oversizes, BORE(MM) X STROKE (MM): 95 x 63.4, DISPL. (CC): 449, BORE SIZE(MM): 97.0, OVERSIZE(MM): 2.00   $249.00 
0910-0373  FITS MODEL: YZ450F 06-07, BORE(MM) X STROKE (MM): 95 x 63, DISPL. (CC): 449, BORE SIZE(MM): 95.0, OVERSIZE(MM): STD   $205.53 
0910-0374  FITS MODEL: YZ450F 06-07, BORE(MM) X STROKE (MM): 95 x 63, DISPL. (CC): 449, BORE SIZE(MM): 97.0, OVERSIZE(MM): 2.00   $226.37 
0910-0373  FITS MODEL: WR450F 06-07 12.5:1 Standard Compression. Nikasil Bore-Cylinder sleeving or replating required for oversizes, BORE(MM) X STROKE (MM): 95 x 63, DISPL. (CC): 449, BORE SIZE(MM): 95.0, OVERSIZE(MM): STD   $205.53 
0910-0374  FITS MODEL: WR450F 06-07 12.5:1 Standard Compression. Nikasil Bore-Cylinder sleeving or replating required for oversizes, BORE(MM) X STROKE (MM): 95 x 63, DISPL. (CC): 449, BORE SIZE(MM): 97.0, OVERSIZE(MM): 2.00   $226.37 
0910-0375  FITS MODEL: YZ450F 06-07, BORE(MM) X STROKE (MM): 95 x 63.4, DISPL. (CC): 449, BORE SIZE(MM): 95.0, OVERSIZE(MM): STD   $226.37 
0910-0376  FITS MODEL: YZ450F 06-07, BORE(MM) X STROKE (MM): 95 x 63.4, DISPL. (CC): 449, BORE SIZE(MM): 97.0, OVERSIZE(MM): 2.00   $249.00 
0910-0375  FITS MODEL: WR450F 06-07, 13.5:1 Hi-Compression. Nikasil Bore-Cylinder sleeving or replating required for oversizes, BORE(MM) X STROKE (MM): 95 x 63.4, DISPL. (CC): 449, BORE SIZE(MM): 95.0, OVERSIZE(MM): STD   $226.37 
0910-0376  FITS MODEL: WR450F 06-07, 13.5:1 Hi-Compression. Nikasil Bore-Cylinder sleeving or replating required for oversizes, BORE(MM) X STROKE (MM): 95 x 63.4, DISPL. (CC): 449, BORE SIZE(MM): 97.0, OVERSIZE(MM): 2.00   $249.00 
4619M09500  FITS MODEL: TT600 Chrome Bore 11.5:1 Compression. Cylinder sleeving or replating required for oversizes, BORE(MM) X STROKE (MM): 95 x 84, DISPL. (CC): 598, BORE SIZE(MM): 95.0, OVERSIZE(MM): STD   $186.76 
4596M09500  FITS MODEL: XT600 84-96, BORE(MM) X STROKE (MM): 95 x 84, DISPL. (CC): 598, BORE SIZE(MM): 95.0, OVERSIZE(MM): STD   $186.76 
4596M09500  FITS MODEL: SRX600 1986 11.5:1 Compression, BORE(MM) X STROKE (MM): 95 x 84, DISPL. (CC): 598, BORE SIZE(MM): 95.0, OVERSIZE(MM): STD   $186.76 
0910-0374  FITS MODEL: YZ450F 03-05, BORE(MM) X STROKE (MM): 95 x 63, DISPL. (CC): 449, BORE SIZE(MM): 97.0, OVERSIZE(MM): 2.00   $226.37 
0910-0373  FITS MODEL: YZ450F 03-05, BORE(MM) X STROKE (MM): 95 x 63, DISPL. (CC): 449, BORE SIZE(MM): 95.0, OVERSIZE(MM): STD   $205.53 
4693M09500  FITS MODEL: WR426F 01-02 12.5:1 Stock Compression, BORE(MM) X STROKE (MM): 95 x 60.1, DISPL. (CC): 426, BORE SIZE(MM): 95.0, OVERSIZE(MM): STD   $194.81 
4693M09500  FITS MODEL: YZ426F 00-02, BORE(MM) X STROKE (MM): 95 x 60.1, DISPL. (CC): 426, BORE SIZE(MM): 95.0, OVERSIZE(MM): STD   $194.81 
4650M09200  FITS MODEL: WR400F 98-00 13.5:1 Compression -6.7cc Dome Volume, BORE(MM) X STROKE (MM): 92 x 60.1, DISPL. (CC): 399, BORE SIZE(MM): 92.0, OVERSIZE(MM): STD   $191.92 
4650M09200  FITS MODEL: YZ400F 98-99, BORE(MM) X STROKE (MM): 92 x 60.1, DISPL. (CC): 399, BORE SIZE(MM): 92.0, OVERSIZE(MM): STD   $191.92 
4649M09200  FITS MODEL: WR400F 98-00, 12.5:1 Compression - 8cc Dome Volume, BORE(MM) X STROKE (MM): 92 x 60.1, DISPL. (CC): 399, BORE SIZE(MM): 92.0, OVERSIZE(MM): STD   $174.48 
4649M09200  FITS MODEL: YZ400F 98-99, BORE(MM) X STROKE (MM): 92 x 60.1, DISPL. (CC): 399, BORE SIZE(MM): 92.0, OVERSIZE(MM): STD   $174.48 
0910-0811  FITS MODEL: WR250F 05-07 13.5:1 Compression. Skirt Coated. 2 Ring. Race Only. Nikasil Bore-Cylinder sleeving or replating required for oversizes, BORE(MM) X STROKE (MM): 77 x 53.6, DISPL. (CC): 263, BORE SIZE(MM): 79.0, OVERSIZE(MM): 2.00   $242.58 

Ring sets

Part # Description Retail
0912-0112  FITS MODEL: TTR90E 03-06 11:1 Hi-Compression, BORE(MM) X STROKE (MM): 47 x 51.8, DISPL. (CC): 90, BORE SIZE(MM): 47.0, OVERSIZE(MM): STD   $30.89 
0912-0113  FITS MODEL: TTR90E 03-06 11:1 Hi-Compression, BORE(MM) X STROKE (MM): 47 x 51.8, DISPL. (CC): 92, BORE SIZE(MM): 47.5, OVERSIZE(MM): 0.50   $30.89 
0912-0114  FITS MODEL: TTR90E 03-06 11:1 Hi-Compression, BORE(MM) X STROKE (MM): 47 x 51.8, DISPL. (CC): 94, BORE SIZE(MM): 48.0, OVERSIZE(MM): 1.00   $30.89 
0912-0110  FITS MODEL: TTR90E 03-06 11:1 Hi-Compression, BORE(MM) X STROKE (MM): 47 x 51.8, DISPL. (CC): 102, BORE SIZE(MM): 50.0, OVERSIZE(MM): 3.00   $30.89 
0912-0111  FITS MODEL: TTR90E 03-06 11:1 Hi-Compression, BORE(MM) X STROKE (MM): 47 x 51.8, DISPL. (CC): 110, BORE SIZE(MM): 52 .0, OVERSIZE(MM): 5.00   $30.89 
2874XC  FITS MODEL: TTR250 99-06 10.5:1 Compression, BORE(MM) X STROKE (MM): 73 x 59.6, DISPL. (CC): 249, BORE SIZE(MM): 73.0, OVERSIZE(MM): STD   $32.02 
2894XC  FITS MODEL: TTR250 99-06 10.5:1 Compression, BORE(MM) X STROKE (MM): 73 x 59.6, DISPL. (CC): 249, BORE SIZE(MM): 73.5, OVERSIZE(MM): 0.5   $32.02 
2913XC  FITS MODEL: TTR250 99-06 10.5:1 Compression, BORE(MM) X STROKE (MM): 73 x 59.6, DISPL. (CC): 249, BORE SIZE(MM): 74.0, OVERSIZE(MM): 1   $32.02 
3110XG  FITS MODEL: YZ250F/WR250F 01-04 12.7:1 Compression (0903-0554/0910-0573); 13.2:1 Compression (0910-0574), BORE(MM) X STROKE (MM): 77 x 53.6, DISPL. (CC): 262, BORE SIZE(MM): 79.0, OVERSIZE(MM): 2.0   $32.02 
0912-0140  FITS MODEL: YZ250F 01-04, +.75 Compression – Light Weight; +1.2 Compression – 2 ring, gas ported. Skirt Coated. Nikasil Bore-Cylinder sleeving or replating required for oversizes, BORE(MM) X STROKE (MM): 77 x 53.6, DISPL. (CC): 249, BORE SIZE(MM): 77.0, OVERSIZE(MM): STD   $40.32 
3110XG  FITS MODEL: YZ250F 01-04, +.75 Compression – Light Weight; +1.2 Compression – 2 ring, gas ported. Skirt Coated. Nikasil Bore-Cylinder sleeving or replating required for oversizes, BORE(MM) X STROKE (MM): 77 x 53.6, DISPL. (CC): 263, BORE SIZE(MM): 79.00, OVERSIZE(MM): 2.00   $32.02 
3740XH  FITS MODEL: SRX600 1986 11.5:1 Compression, BORE(MM) X STROKE (MM): 95 x 84, DISPL. (CC): 598, BORE SIZE(MM): 95.0, OVERSIZE(MM): STD   $32.02 
3740XH  FITS MODEL: XT600 84-96, BORE(MM) X STROKE (MM): 95 x 84, DISPL. (CC): 598, BORE SIZE(MM): 95.0, OVERSIZE(MM): STD   $32.02 
3110XG  FITS MODEL: WR250F 05-07 13.5:1 Compression. Skirt Coated. 2 Ring. Race Only. Nikasil Bore-Cylinder sleeving or replating required for oversizes, BORE(MM) X STROKE (MM): 77 x 53.6, DISPL. (CC): 263, BORE SIZE(MM): 79.0, OVERSIZE(MM): 2.00   $32.02 
0912-0140  FITS MODEL: WR250F 05-07 13.5:1 Compression. Skirt Coated. 2 Ring. Race Only. Nikasil Bore-Cylinder sleeving or replating required for oversizes, BORE(MM) X STROKE (MM): 77 x 53.6, DISPL. (CC): 250, BORE SIZE(MM): 77.0, OVERSIZE(MM): STD   $40.32 
3110XG  FITS MODEL: YZ250F 05-07, BORE(MM) X STROKE (MM): 77 x 53.6, DISPL. (CC): 263, BORE SIZE(MM): 79.0, OVERSIZE(MM): 2.00   $32.02 
0912-0140  FITS MODEL: YZ250F 05-07, BORE(MM) X STROKE (MM): 77 x 53.6, DISPL. (CC): 250, BORE SIZE(MM): 77.0, OVERSIZE(MM): STD   $40.32 
3110XG  FITS MODEL: WR250F 05-07, 12.5:1 Compression. Nikasil Bore-Cylinder sleeving or replating required for oversizes, BORE(MM) X STROKE (MM): 77 x 53.6, DISPL. (CC): 263, BORE SIZE(MM): 79.0, OVERSIZE(MM): 2.00   $32.02 
3110XG  FITS MODEL: YZ250F 05-07, BORE(MM) X STROKE (MM): 77 x 53.6, DISPL. (CC): 263, BORE SIZE(MM): 79.0, OVERSIZE(MM): 2.00   $32.02 

Circlips

Part # Description Retail
CW13  FITS MODEL: TTR90E 03-06 11:1 Hi-Compression, BORE(MM) X STROKE (MM): 47 x 51.8, DISPL. (CC): 90, BORE SIZE(MM): 47.0, OVERSIZE(MM): STD   $2.00 
CW13  FITS MODEL: TTR90E 03-06 11:1 Hi-Compression, BORE(MM) X STROKE (MM): 47 x 51.8, DISPL. (CC): 92, BORE SIZE(MM): 47.5, OVERSIZE(MM): 0.50   $2.00 
CW13  FITS MODEL: TTR90E 03-06 11:1 Hi-Compression, BORE(MM) X STROKE (MM): 47 x 51.8, DISPL. (CC): 94, BORE SIZE(MM): 48.0, OVERSIZE(MM): 1.00   $2.00 
CW13  FITS MODEL: TTR90E 03-06 11:1 Hi-Compression, BORE(MM) X STROKE (MM): 47 x 51.8, DISPL. (CC): 102, BORE SIZE(MM): 50.0, OVERSIZE(MM): 3.00   $2.00 
CW13  FITS MODEL: TTR90E 03-06 11:1 Hi-Compression, BORE(MM) X STROKE (MM): 47 x 51.8, DISPL. (CC): 110, BORE SIZE(MM): 52 .0, OVERSIZE(MM): 5.00   $2.00 
CW15  FITS MODEL: TTR125 00-06 11:1 Compression, BORE(MM) X STROKE (MM): 54 x 54.5, DISPL. (CC): 123.7, BORE SIZE(MM): 54.0, OVERSIZE(MM): STD   $2.00 
CW15  FITS MODEL: TTR125 00-06 11:1 Compression, BORE(MM) X STROKE (MM): 54 x 54.5, DISPL. (CC): 123.7, BORE SIZE(MM): 54.5, OVERSIZE(MM): 0.5   $2.00 
CW15  FITS MODEL: TTR125 00-06 11:1 Compression, BORE(MM) X STROKE (MM): 54 x 54.5, DISPL. (CC): 123.7, BORE SIZE(MM): 55.0, OVERSIZE(MM): 1.0   $2.00 
CW18  FITS MODEL: TTR250 99-06 10.5:1 Compression, BORE(MM) X STROKE (MM): 73 x 59.6, DISPL. (CC): 249, BORE SIZE(MM): 73.0, OVERSIZE(MM): STD   $2.00 
CW18  FITS MODEL: TTR250 99-06 10.5:1 Compression, BORE(MM) X STROKE (MM): 73 x 59.6, DISPL. (CC): 249, BORE SIZE(MM): 73.5, OVERSIZE(MM): 0.5   $2.00 
CW18  FITS MODEL: TTR250 99-06 10.5:1 Compression, BORE(MM) X STROKE (MM): 73 x 59.6, DISPL. (CC): 249, BORE SIZE(MM): 74.0, OVERSIZE(MM): 1   $2.00 
CW16  FITS MODEL: YZ250F/WR250F 01-04 12.7:1 Compression (0903-0554/0910-0573); 13.2:1 Compression (0910-0574), BORE(MM) X STROKE (MM): 77 x 53.6, DISPL. (CC): 249, BORE SIZE(MM): 77.0, OVERSIZE(MM): STD   $2.00 
CW16  FITS MODEL: YZ250F/WR250F 01-04 12.7:1 Compression (0903-0554/0910-0573); 13.2:1 Compression (0910-0574), BORE(MM) X STROKE (MM): 77 x 53.6, DISPL. (CC): 262, BORE SIZE(MM): 79.0, OVERSIZE(MM): 2.0   $2.00 
CW16  FITS MODEL: YZ250F 01-04, +.75 Compression – Light Weight; +1.2 Compression – 2 ring, gas ported. Skirt Coated. Nikasil Bore-Cylinder sleeving or replating required for oversizes, BORE(MM) X STROKE (MM): 77 x 53.6, DISPL. (CC): 249, BORE SIZE(MM): 77.0, OVERSIZE(MM): STD   $2.00 
CW16  FITS MODEL: YZ250F 01-04, +.75 Compression – Light Weight; +1.2 Compression – 2 ring, gas ported. Skirt Coated. Nikasil Bore-Cylinder sleeving or replating required for oversizes, BORE(MM) X STROKE (MM): 77 x 53.6, DISPL. (CC): 263, BORE SIZE(MM): 79.00, OVERSIZE(MM): 2.00   $2.00 
CW16  FITS MODEL: YZ250F 05-07, BORE(MM) X STROKE (MM): 77 x 53.6, DISPL. (CC): 250, BORE SIZE(MM): 77.0, OVERSIZE(MM): STD   $2.00 
CW16  FITS MODEL: YZ250F 05-07, BORE(MM) X STROKE (MM): 77 x 53.6, DISPL. (CC): 263, BORE SIZE(MM): 79.0, OVERSIZE(MM): 2.00   $2.00 
CW16  FITS MODEL: WR250F 05-07, 12.5:1 Compression. Nikasil Bore-Cylinder sleeving or replating required for oversizes, BORE(MM) X STROKE (MM): 77 x 53.6, DISPL. (CC): 250, BORE SIZE(MM): 77.0, OVERSIZE(MM): STD   $2.00 
CW16  FITS MODEL: WR250F 05-07, 12.5:1 Compression. Nikasil Bore-Cylinder sleeving or replating required for oversizes, BORE(MM) X STROKE (MM): 77 x 53.6, DISPL. (CC): 263, BORE SIZE(MM): 79.0, OVERSIZE(MM): 2.00   $2.00 
CW16  FITS MODEL: YZ250F 05-07, BORE(MM) X STROKE (MM): 77 x 53.6, DISPL. (CC): 250, BORE SIZE(MM): 77.0, OVERSIZE(MM): STD   $2.00 
CW16  FITS MODEL: YZ250F 05-07, BORE(MM) X STROKE (MM): 77 x 53.6, DISPL. (CC): 263, BORE SIZE(MM): 79.0, OVERSIZE(MM): 2.00   $2.00 
CW16  FITS MODEL: WR250F 05-07 13.5:1 Compression. Skirt Coated. 2 Ring. Race Only. Nikasil Bore-Cylinder sleeving or replating required for oversizes, BORE(MM) X STROKE (MM): 77 x 53.6, DISPL. (CC): 250, BORE SIZE(MM): 77.0, OVERSIZE(MM): STD   $2.00 
CW16  FITS MODEL: WR250F 05-07 13.5:1 Compression. Skirt Coated. 2 Ring. Race Only. Nikasil Bore-Cylinder sleeving or replating required for oversizes, BORE(MM) X STROKE (MM): 77 x 53.6, DISPL. (CC): 263, BORE SIZE(MM): 79.0, OVERSIZE(MM): 2.00   $2.00 
CW18  FITS MODEL: YZ400F 98-99, BORE(MM) X STROKE (MM): 92 x 60.1, DISPL. (CC): 399, BORE SIZE(MM): 92.0, OVERSIZE(MM): STD   $2.00 
CW18  FITS MODEL: WR400F 98-00, 12.5:1 Compression - 8cc Dome Volume, BORE(MM) X STROKE (MM): 92 x 60.1, DISPL. (CC): 399, BORE SIZE(MM): 92.0, OVERSIZE(MM): STD   $2.00 
CW18  FITS MODEL: YZ400F 98-99, BORE(MM) X STROKE (MM): 92 x 60.1, DISPL. (CC): 399, BORE SIZE(MM): 92.0, OVERSIZE(MM): STD   $2.00 
CW18  FITS MODEL: WR400F 98-00 13.5:1 Compression -6.7cc Dome Volume, BORE(MM) X STROKE (MM): 92 x 60.1, DISPL. (CC): 399, BORE SIZE(MM): 92.0, OVERSIZE(MM): STD   $2.00 
CW19  FITS MODEL: YZ426F 00-02, BORE(MM) X STROKE (MM): 95 x 60.1, DISPL. (CC): 426, BORE SIZE(MM): 95.0, OVERSIZE(MM): STD   $2.00 
CW19  FITS MODEL: WR426F 01-02 12.5:1 Stock Compression, BORE(MM) X STROKE (MM): 95 x 60.1, DISPL. (CC): 426, BORE SIZE(MM): 95.0, OVERSIZE(MM): STD   $2.00 
CW18  FITS MODEL: YZ450F 03-05, BORE(MM) X STROKE (MM): 95 x 63, DISPL. (CC): 449, BORE SIZE(MM): 95.0, OVERSIZE(MM): STD   $2.00 
CW18  FITS MODEL: YZ450F 03-05, BORE(MM) X STROKE (MM): 95 x 63, DISPL. (CC): 449, BORE SIZE(MM): 97.0, OVERSIZE(MM): 2.00   $2.00 
CW18  FITS MODEL: WR450F 03-05 12.5:1 Standard Compression. Nikasil Bore-Cylinder sleeving or replating required for oversizes, BORE(MM) X STROKE (MM): 95 x 63, DISPL. (CC): 449, BORE SIZE(MM): 95.0, OVERSIZE(MM): STD   $2.00 
CW18  FITS MODEL: WR450F 03-05 12.5:1 Standard Compression. Nikasil Bore-Cylinder sleeving or replating required for oversizes, BORE(MM) X STROKE (MM): 95 x 63, DISPL. (CC): 449, BORE SIZE(MM): 97.0, OVERSIZE(MM): 2.00   $2.00 
CW18  FITS MODEL: YZ450F 03-05, BORE(MM) X STROKE (MM): 95 x 63.4, DISPL. (CC): 449, BORE SIZE(MM): 95.0, OVERSIZE(MM): STD   $2.00 
CW18  FITS MODEL: YZ450F 03-05, BORE(MM) X STROKE (MM): 95 x 63.4, DISPL. (CC): 449, BORE SIZE(MM): 97.0, OVERSIZE(MM): 2.00   $2.00 
CW18  FITS MODEL: WR450F 03-05 13.5:1 Hi-Compression. Nikasil Bore-Cylinder sleeving or replating required for oversizes, BORE(MM) X STROKE (MM): 95 x 63.4, DISPL. (CC): 449, BORE SIZE(MM): 95.0, OVERSIZE(MM): STD   $2.00 
CW18  FITS MODEL: WR450F 03-05 13.5:1 Hi-Compression. Nikasil Bore-Cylinder sleeving or replating required for oversizes, BORE(MM) X STROKE (MM): 95 x 63.4, DISPL. (CC): 449, BORE SIZE(MM): 97.0, OVERSIZE(MM): 2.00   $2.00 
CW18  FITS MODEL: YZ450F 06-07, BORE(MM) X STROKE (MM): 95 x 63, DISPL. (CC): 449, BORE SIZE(MM): 95.0, OVERSIZE(MM): STD   $2.00 
CW18  FITS MODEL: YZ450F 06-07, BORE(MM) X STROKE (MM): 95 x 63, DISPL. (CC): 449, BORE SIZE(MM): 97.0, OVERSIZE(MM): 2.00   $2.00 
CW18  FITS MODEL: WR450F 06-07 12.5:1 Standard Compression. Nikasil Bore-Cylinder sleeving or replating required for oversizes, BORE(MM) X STROKE (MM): 95 x 63, DISPL. (CC): 449, BORE SIZE(MM): 95.0, OVERSIZE(MM): STD   $2.00 
CW18  FITS MODEL: WR450F 06-07 12.5:1 Standard Compression. Nikasil Bore-Cylinder sleeving or replating required for oversizes, BORE(MM) X STROKE (MM): 95 x 63, DISPL. (CC): 449, BORE SIZE(MM): 97.0, OVERSIZE(MM): 2.00   $2.00 
CW18  FITS MODEL: YZ450F 06-07, BORE(MM) X STROKE (MM): 95 x 63.4, DISPL. (CC): 449, BORE SIZE(MM): 95.0, OVERSIZE(MM): STD   $2.00 
CW18  FITS MODEL: YZ450F 06-07, BORE(MM) X STROKE (MM): 95 x 63.4, DISPL. (CC): 449, BORE SIZE(MM): 97.0, OVERSIZE(MM): 2.00   $2.00 
CW18  FITS MODEL: WR450F 06-07, 13.5:1 Hi-Compression. Nikasil Bore-Cylinder sleeving or replating required for oversizes, BORE(MM) X STROKE (MM): 95 x 63.4, DISPL. (CC): 449, BORE SIZE(MM): 95.0, OVERSIZE(MM): STD   $2.00 
CW18  FITS MODEL: WR450F 06-07, 13.5:1 Hi-Compression. Nikasil Bore-Cylinder sleeving or replating required for oversizes, BORE(MM) X STROKE (MM): 95 x 63.4, DISPL. (CC): 449, BORE SIZE(MM): 97.0, OVERSIZE(MM): 2.00   $2.00 
CW22  FITS MODEL: TT600 Chrome Bore 11.5:1 Compression. Cylinder sleeving or replating required for oversizes, BORE(MM) X STROKE (MM): 95 x 84, DISPL. (CC): 598, BORE SIZE(MM): 95.0, OVERSIZE(MM): STD   $2.00 
CW22  FITS MODEL: XT600 84-96, BORE(MM) X STROKE (MM): 95 x 84, DISPL. (CC): 598, BORE SIZE(MM): 95.0, OVERSIZE(MM): STD   $2.00 
CW22  FITS MODEL: SRX600 1986 11.5:1 Compression, BORE(MM) X STROKE (MM): 95 x 84, DISPL. (CC): 598, BORE SIZE(MM): 95.0, OVERSIZE(MM): STD   $2.00 

Wrist Pins

Part # Description Retail
0913-0005  FITS MODEL: TTR90E 03-06 11:1 Hi-Compression, BORE(MM) X STROKE (MM): 47 x 51.8, DISPL. (CC): 90, BORE SIZE(MM): 47.0, OVERSIZE(MM): STD   $15.58 
0913-0005  FITS MODEL: TTR90E 03-06 11:1 Hi-Compression, BORE(MM) X STROKE (MM): 47 x 51.8, DISPL. (CC): 92, BORE SIZE(MM): 47.5, OVERSIZE(MM): 0.50   $15.58 
0913-0005  FITS MODEL: TTR90E 03-06 11:1 Hi-Compression, BORE(MM) X STROKE (MM): 47 x 51.8, DISPL. (CC): 94, BORE SIZE(MM): 48.0, OVERSIZE(MM): 1.00   $15.58 
0913-0005  FITS MODEL: TTR90E 03-06 11:1 Hi-Compression, BORE(MM) X STROKE (MM): 47 x 51.8, DISPL. (CC): 102, BORE SIZE(MM): 50.0, OVERSIZE(MM): 3.00   $15.58 
0913-0005  FITS MODEL: TTR90E 03-06 11:1 Hi-Compression, BORE(MM) X STROKE (MM): 47 x 51.8, DISPL. (CC): 110, BORE SIZE(MM): 52 .0, OVERSIZE(MM): 5.00   $15.58 
0913-0008  FITS MODEL: YZ250F/WR250F 01-04 12.7:1 Compression (0903-0554/0910-0573); 13.2:1 Compression (0910-0574), BORE(MM) X STROKE (MM): 77 x 53.6, DISPL. (CC): 249, BORE SIZE(MM): 77.0, OVERSIZE(MM): STD   $13.55 
0913-0008  FITS MODEL: YZ250F/WR250F 01-04 12.7:1 Compression (0903-0554/0910-0573); 13.2:1 Compression (0910-0574), BORE(MM) X STROKE (MM): 77 x 53.6, DISPL. (CC): 262, BORE SIZE(MM): 79.0, OVERSIZE(MM): 2.0   $13.55 
0913-0008  FITS MODEL: YZ250F 01-04, +.75 Compression – Light Weight; +1.2 Compression – 2 ring, gas ported. Skirt Coated. Nikasil Bore-Cylinder sleeving or replating required for oversizes, BORE(MM) X STROKE (MM): 77 x 53.6, DISPL. (CC): 249, BORE SIZE(MM): 77.0, OVERSIZE(MM): STD   $13.55 
0913-0008  FITS MODEL: YZ250F 01-04, +.75 Compression – Light Weight; +1.2 Compression – 2 ring, gas ported. Skirt Coated. Nikasil Bore-Cylinder sleeving or replating required for oversizes, BORE(MM) X STROKE (MM): 77 x 53.6, DISPL. (CC): 263, BORE SIZE(MM): 79.00, OVERSIZE(MM): 2.00   $13.55 
0913-0008  FITS MODEL: YZ250F 05-07, BORE(MM) X STROKE (MM): 77 x 53.6, DISPL. (CC): 250, BORE SIZE(MM): 77.0, OVERSIZE(MM): STD   $13.55 
0913-0008  FITS MODEL: YZ250F 05-07, BORE(MM) X STROKE (MM): 77 x 53.6, DISPL. (CC): 263, BORE SIZE(MM): 79.0, OVERSIZE(MM): 2.00   $13.55 
0913-0008  FITS MODEL: WR250F 05-07, 12.5:1 Compression. Nikasil Bore-Cylinder sleeving or replating required for oversizes, BORE(MM) X STROKE (MM): 77 x 53.6, DISPL. (CC): 250, BORE SIZE(MM): 77.0, OVERSIZE(MM): STD   $13.55 
0913-0008  FITS MODEL: WR250F 05-07, 12.5:1 Compression. Nikasil Bore-Cylinder sleeving or replating required for oversizes, BORE(MM) X STROKE (MM): 77 x 53.6, DISPL. (CC): 263, BORE SIZE(MM): 79.0, OVERSIZE(MM): 2.00   $13.55 
0913-0008  FITS MODEL: YZ250F 05-07, BORE(MM) X STROKE (MM): 77 x 53.6, DISPL. (CC): 250, BORE SIZE(MM): 77.0, OVERSIZE(MM): STD   $13.55 
0913-0008  FITS MODEL: YZ250F 05-07, BORE(MM) X STROKE (MM): 77 x 53.6, DISPL. (CC): 263, BORE SIZE(MM): 79.0, OVERSIZE(MM): 2.00   $13.55 
0913-0008  FITS MODEL: WR250F 05-07 13.5:1 Compression. Skirt Coated. 2 Ring. Race Only. Nikasil Bore-Cylinder sleeving or replating required for oversizes, BORE(MM) X STROKE (MM): 77 x 53.6, DISPL. (CC): 250, BORE SIZE(MM): 77.0, OVERSIZE(MM): STD   $13.55 
0913-0008  FITS MODEL: WR250F 05-07 13.5:1 Compression. Skirt Coated. 2 Ring. Race Only. Nikasil Bore-Cylinder sleeving or replating required for oversizes, BORE(MM) X STROKE (MM): 77 x 53.6, DISPL. (CC): 263, BORE SIZE(MM): 79.0, OVERSIZE(MM): 2.00   $13.55 

This item appears on page 916 of the OffRoad Catalog