Engine > Wiseco Pistons

HIGH-PERFORMANCE PISTONS FOR KTM 4-STROKE

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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
  • Two high-strength, easy-to-install circlips are furnished with every piston
  • Additional inventory available to order
  • 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

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HIGH-PERFORMANCE PISTONS FOR KTM 4-STROKE



Pistons

Part # Description Retail
0910-0846  FITS MODEL: 250 SX-F 06-08, Stock Compression, BORE(MM) X STROKE (MM): 76 x 55, DISPL. (CC): 249.5, BORE SIZE(MM): 76, OVERSIZE(MM): STD   $254.73 
0910-0847  FITS MODEL: 250 SX-F 06-08, Stock Compression, BORE(MM) X STROKE (MM): 76 x 55, DISPL. (CC): 262.8, BORE SIZE(MM): 78, OVERSIZE(MM): 2.00   $280.19 
0910-0848  FITS MODEL: 250 SX-F 06-08, + .5 Compression, BORE(MM) X STROKE (MM): 76 x 55, DISPL. (CC): 249.5, BORE SIZE(MM): 76, OVERSIZE(MM): STD   $308.23 
0910-0849  FITS MODEL: 250 SX-F 06-08, + .5 Compression, BORE(MM) X STROKE (MM): 76 x 55, DISPL. (CC): 262.8, BORE SIZE(MM): 78, OVERSIZE(MM): 2.00   $339.05 
0910-0780  FITS MODEL: 400 SX 00-02, BORE(MM) X STROKE (MM): 89 x 64, DISPL. (CC): 398, BORE SIZE(MM): 89.0, OVERSIZE(MM): STD   $174.48 
0910-0781  FITS MODEL: 400 SX 00-02, BORE(MM) X STROKE (MM): 89 x 64, DISPL. (CC): 398, BORE SIZE(MM): 91.00, OVERSIZE(MM): 2   $191.92 
0910-0780  FITS MODEL: 400 EXC 00-02, 11:1 Compression. Cylinder boring and replating required for oversizes, BORE(MM) X STROKE (MM): 89 x 64, DISPL. (CC): 398, BORE SIZE(MM): 89.0, OVERSIZE(MM): STD   $174.48 
0910-0781  FITS MODEL: 400 EXC 00-02, 11:1 Compression. Cylinder boring and replating required for oversizes, BORE(MM) X STROKE (MM): 89 x 64, DISPL. (CC): 398, BORE SIZE(MM): 91.00, OVERSIZE(MM): 2   $191.92 
0910-0782  FITS MODEL: 400 SX 00-02, BORE(MM) X STROKE (MM): 89 x 64, DISPL. (CC): 398, BORE SIZE(MM): 89.0, OVERSIZE(MM): STD   $209.37 
0910-0783  FITS MODEL: 400 SX 00-02, BORE(MM) X STROKE (MM): 89 x 64, DISPL. (CC): 398, BORE SIZE(MM): 91.00, OVERSIZE(MM): 2   $230.31 
0910-0782  FITS MODEL: 400 EXC 00-02, 12:1 Compression. Cylinder boring and replating required for oversizes, BORE(MM) X STROKE (MM): 89 x 64, DISPL. (CC): 398, BORE SIZE(MM): 89.0, OVERSIZE(MM): STD   $209.37 
0910-0783  FITS MODEL: 400 EXC 00-02, 12:1 Compression. Cylinder boring and replating required for oversizes, BORE(MM) X STROKE (MM): 89 x 64, DISPL. (CC): 398, BORE SIZE(MM): 91.0, OVERSIZE(MM): 2.0   $230.31 
0910-0784  FITS MODEL: 450 SX 03-06, 12:1 Compression. Cylinder boring and replating required for oversizes, BORE(MM) X STROKE (MM): 95 x 63.4, DISPL. (CC): 449, BORE SIZE(MM): 95.0, OVERSIZE(MM): STD   $219.60 
0910-0785  FITS MODEL: 450 SX 03-06, 13:1 Compression. Cylinder boring and replating required for oversizes, BORE(MM) X STROKE (MM): 95 x 63.4, DISPL. (CC): 449, BORE SIZE(MM): 95.0, OVERSIZE(MM): STD   $241.53 
0910-0786  FITS MODEL: 450 SX 03-06, 13:1 Compression. Cylinder boring and replating required for oversizes, BORE(MM) X STROKE (MM): 95 x 63.4, DISPL. (CC): 449, BORE SIZE(MM): 97.0, OVERSIZE(MM): 2   $265.71 
0910-0850  FITS MODEL: 450 XC-F 07-08, BORE(MM) X STROKE (MM): 97 x 60.8, DISPL. (CC): 449, BORE SIZE(MM): 97, OVERSIZE(MM): STD   $219.60 
0910-0850  FITS MODEL: 450 SX-F 07-08, 12.5:1 Compression. Skirt Coated, BORE(MM) X STROKE (MM): 97 x 60.8, DISPL. (CC): 449, BORE SIZE(MM): 97, OVERSIZE(MM): STD   $219.60 
0910-0851  FITS MODEL: 450 XC-F 07-08, BORE(MM) X STROKE (MM): 97 x 60.8, DISPL. (CC): 449, BORE SIZE(MM): 97, OVERSIZE(MM): STD   $241.53 
0910-0851  FITS MODEL: 450 SX-F 07-08, 13.5:1 Compression. Skirt coated, BORE(MM) X STROKE (MM): 97 x 60.8, DISPL. (CC): 449, BORE SIZE(MM): 97, OVERSIZE(MM): STD   $241.53 
0910-0787  FITS MODEL: 520 SX/ 525 SX 00-06, BORE(MM) X STROKE (MM): 95 x 72, DISPL. (CC): 510, BORE SIZE(MM): 95.0, OVERSIZE(MM): STD   $219.60 
0910-0788  FITS MODEL: 520 SX/ 525 SX 00-06, BORE(MM) X STROKE (MM): 95 x 72, DISPL. (CC): 510, BORE SIZE(MM): 97.0, OVERSIZE(MM): 2   $241.53 
0910-0787  FITS MODEL: 525 03-06, 11:1 Compression. Cylinder boring and replating required for oversizes, BORE(MM) X STROKE (MM): 95 x 72, DISPL. (CC): 510, BORE SIZE(MM): 95.0, OVERSIZE(MM): STD   $219.60 
0910-0788  FITS MODEL: 525 03-06, 11:1 Compression. Cylinder boring and replating required for oversizes, BORE(MM) X STROKE (MM): 95 x 72, DISPL. (CC): 510, BORE SIZE(MM): 97.0, OVERSIZE(MM): 2   $241.53 
0910-0789  FITS MODEL: 520 EXC/ 525 EXC 00-07, BORE(MM) X STROKE (MM): 95 x 72, DISPL. (CC): 510, BORE SIZE(MM): 95.0, OVERSIZE(MM): STD   $219.60 
0910-0790  FITS MODEL: 520 EXC/ 525 EXC 00-07, BORE(MM) X STROKE (MM): 95 x 72, DISPL. (CC): 510, BORE SIZE(MM): 97.0, OVERSIZE(MM): 2.0   $241.53 
0910-0789  FITS MODEL: 525 03-06 12.5:1 Compression. Cylinder boring and replating required for oversizes, BORE(MM) X STROKE (MM): 95 x 72, DISPL. (CC): 510, BORE SIZE(MM): 95.0, OVERSIZE(MM): STD   $219.60 
0910-0790  FITS MODEL: 525 03-06 12.5:1 Compression. Cylinder boring and replating required for oversizes, BORE(MM) X STROKE (MM): 95 x 72, DISPL. (CC): 510, BORE SIZE(MM): 97.0, OVERSIZE(MM): 2.0   $241.53 

Ring sets

Part # Description Retail
2992XG  FITS MODEL: 250 SX-F 06-08, Stock Compression, BORE(MM) X STROKE (MM): 76 x 55, DISPL. (CC): 249.5, BORE SIZE(MM): 76, OVERSIZE(MM): STD   $32.02 
2992XG  FITS MODEL: 250 SX-F 06-08, + .5 Compression, BORE(MM) X STROKE (MM): 76 x 55, DISPL. (CC): 249.5, BORE SIZE(MM): 76, OVERSIZE(MM): STD   $32.02 
0912-0131  FITS MODEL: 400 SX 00-02, BORE(MM) X STROKE (MM): 89 x 64, DISPL. (CC): 398, BORE SIZE(MM): 89.0, OVERSIZE(MM): STD   $32.02 
0912-0132  FITS MODEL: 400 SX 00-02, BORE(MM) X STROKE (MM): 89 x 64, DISPL. (CC): 398, BORE SIZE(MM): 91.00, OVERSIZE(MM): 2   $32.02 
0912-0131  FITS MODEL: 400 EXC 00-02, 11:1 Compression. Cylinder boring and replating required for oversizes, BORE(MM) X STROKE (MM): 89 x 64, DISPL. (CC): 398, BORE SIZE(MM): 89.0, OVERSIZE(MM): STD   $32.02 
0912-0132  FITS MODEL: 400 EXC 00-02, 11:1 Compression. Cylinder boring and replating required for oversizes, BORE(MM) X STROKE (MM): 89 x 64, DISPL. (CC): 398, BORE SIZE(MM): 91.00, OVERSIZE(MM): 2   $32.02 
0912-0131  FITS MODEL: 400 SX 00-02, BORE(MM) X STROKE (MM): 89 x 64, DISPL. (CC): 398, BORE SIZE(MM): 89.0, OVERSIZE(MM): STD   $32.02 
0912-0132  FITS MODEL: 400 SX 00-02, BORE(MM) X STROKE (MM): 89 x 64, DISPL. (CC): 398, BORE SIZE(MM): 91.00, OVERSIZE(MM): 2   $32.02 
0912-0131  FITS MODEL: 400 EXC 00-02, 12:1 Compression. Cylinder boring and replating required for oversizes, BORE(MM) X STROKE (MM): 89 x 64, DISPL. (CC): 398, BORE SIZE(MM): 89.0, OVERSIZE(MM): STD   $32.02 
0912-0132  FITS MODEL: 400 EXC 00-02, 12:1 Compression. Cylinder boring and replating required for oversizes, BORE(MM) X STROKE (MM): 89 x 64, DISPL. (CC): 398, BORE SIZE(MM): 91.0, OVERSIZE(MM): 2.0   $32.02 
0912-0134  FITS MODEL: 450 SX 03-06, 12:1 Compression. Cylinder boring and replating required for oversizes, BORE(MM) X STROKE (MM): 95 x 63.4, DISPL. (CC): 449, BORE SIZE(MM): 95.0, OVERSIZE(MM): STD   $32.02 
0912-0134  FITS MODEL: 450 SX 03-06, 13:1 Compression. Cylinder boring and replating required for oversizes, BORE(MM) X STROKE (MM): 95 x 63.4, DISPL. (CC): 449, BORE SIZE(MM): 95.0, OVERSIZE(MM): STD   $32.02 
0912-0133  FITS MODEL: 450 SX 03-06, 13:1 Compression. Cylinder boring and replating required for oversizes, BORE(MM) X STROKE (MM): 95 x 63.4, DISPL. (CC): 449, BORE SIZE(MM): 97.0, OVERSIZE(MM): 2   $32.02 
0912-0133  FITS MODEL: 450 XC-F 07-08, BORE(MM) X STROKE (MM): 97 x 60.8, DISPL. (CC): 449, BORE SIZE(MM): 97, OVERSIZE(MM): STD   $32.02 
0912-0133  FITS MODEL: 450 SX-F 07-08, 12.5:1 Compression. Skirt Coated, BORE(MM) X STROKE (MM): 97 x 60.8, DISPL. (CC): 449, BORE SIZE(MM): 97, OVERSIZE(MM): STD   $32.02 
0912-0133  FITS MODEL: 450 XC-F 07-08, BORE(MM) X STROKE (MM): 97 x 60.8, DISPL. (CC): 449, BORE SIZE(MM): 97, OVERSIZE(MM): STD   $32.02 
0912-0133  FITS MODEL: 450 SX-F 07-08, 13.5:1 Compression. Skirt coated, BORE(MM) X STROKE (MM): 97 x 60.8, DISPL. (CC): 449, BORE SIZE(MM): 97, OVERSIZE(MM): STD   $32.02 
0912-0134  FITS MODEL: 520 SX/ 525 SX 00-06, BORE(MM) X STROKE (MM): 95 x 72, DISPL. (CC): 510, BORE SIZE(MM): 95.0, OVERSIZE(MM): STD   $32.02 
0912-0133  FITS MODEL: 520 SX/ 525 SX 00-06, BORE(MM) X STROKE (MM): 95 x 72, DISPL. (CC): 510, BORE SIZE(MM): 97.0, OVERSIZE(MM): 2   $32.02 
0912-0134  FITS MODEL: 525 03-06, 11:1 Compression. Cylinder boring and replating required for oversizes, BORE(MM) X STROKE (MM): 95 x 72, DISPL. (CC): 510, BORE SIZE(MM): 95.0, OVERSIZE(MM): STD   $32.02 
0912-0133  FITS MODEL: 525 03-06, 11:1 Compression. Cylinder boring and replating required for oversizes, BORE(MM) X STROKE (MM): 95 x 72, DISPL. (CC): 510, BORE SIZE(MM): 97.0, OVERSIZE(MM): 2   $32.02 
0912-0134  FITS MODEL: 520 EXC/ 525 EXC 00-07, BORE(MM) X STROKE (MM): 95 x 72, DISPL. (CC): 510, BORE SIZE(MM): 95.0, OVERSIZE(MM): STD   $32.02 
0912-0133  FITS MODEL: 520 EXC/ 525 EXC 00-07, BORE(MM) X STROKE (MM): 95 x 72, DISPL. (CC): 510, BORE SIZE(MM): 97.0, OVERSIZE(MM): 2.0   $32.02 
0912-0134  FITS MODEL: 525 03-06 12.5:1 Compression. Cylinder boring and replating required for oversizes, BORE(MM) X STROKE (MM): 95 x 72, DISPL. (CC): 510, BORE SIZE(MM): 95.0, OVERSIZE(MM): STD   $32.02 
0912-0133  FITS MODEL: 525 03-06 12.5:1 Compression. Cylinder boring and replating required for oversizes, BORE(MM) X STROKE (MM): 95 x 72, DISPL. (CC): 510, BORE SIZE(MM): 97.0, OVERSIZE(MM): 2.0   $32.02 

Circlips

Part # Description Retail
CW20  FITS MODEL: 400 SX 00-02, BORE(MM) X STROKE (MM): 89 x 64, DISPL. (CC): 398, BORE SIZE(MM): 89.0, OVERSIZE(MM): STD   $2.00 
CW20  FITS MODEL: 400 SX 00-02, BORE(MM) X STROKE (MM): 89 x 64, DISPL. (CC): 398, BORE SIZE(MM): 91.00, OVERSIZE(MM): 2   $2.00 
CW20  FITS MODEL: 400 EXC 00-02, 11:1 Compression. Cylinder boring and replating required for oversizes, BORE(MM) X STROKE (MM): 89 x 64, DISPL. (CC): 398, BORE SIZE(MM): 89.0, OVERSIZE(MM): STD   $2.00 
CW20  FITS MODEL: 400 EXC 00-02, 11:1 Compression. Cylinder boring and replating required for oversizes, BORE(MM) X STROKE (MM): 89 x 64, DISPL. (CC): 398, BORE SIZE(MM): 91.00, OVERSIZE(MM): 2   $2.00 
CW20  FITS MODEL: 400 SX 00-02, BORE(MM) X STROKE (MM): 89 x 64, DISPL. (CC): 398, BORE SIZE(MM): 89.0, OVERSIZE(MM): STD   $2.00 
CW20  FITS MODEL: 400 SX 00-02, BORE(MM) X STROKE (MM): 89 x 64, DISPL. (CC): 398, BORE SIZE(MM): 91.00, OVERSIZE(MM): 2   $2.00 
CW20  FITS MODEL: 400 EXC 00-02, 12:1 Compression. Cylinder boring and replating required for oversizes, BORE(MM) X STROKE (MM): 89 x 64, DISPL. (CC): 398, BORE SIZE(MM): 89.0, OVERSIZE(MM): STD   $2.00 
CW20  FITS MODEL: 400 EXC 00-02, 12:1 Compression. Cylinder boring and replating required for oversizes, BORE(MM) X STROKE (MM): 89 x 64, DISPL. (CC): 398, BORE SIZE(MM): 91.0, OVERSIZE(MM): 2.0   $2.00 
CW20  FITS MODEL: 450 SX 03-06, 12:1 Compression. Cylinder boring and 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 
CW20  FITS MODEL: 450 SX 03-06, 13:1 Compression. Cylinder boring and 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 
CW20  FITS MODEL: 450 SX 03-06, 13:1 Compression. Cylinder boring and replating required for oversizes, BORE(MM) X STROKE (MM): 95 x 63.4, DISPL. (CC): 449, BORE SIZE(MM): 97.0, OVERSIZE(MM): 2   $2.00 
CW19  FITS MODEL: 450 XC-F 07-08, BORE(MM) X STROKE (MM): 97 x 60.8, DISPL. (CC): 449, BORE SIZE(MM): 97, OVERSIZE(MM): STD   $2.00 
CW19  FITS MODEL: 450 SX-F 07-08, 12.5:1 Compression. Skirt Coated, BORE(MM) X STROKE (MM): 97 x 60.8, DISPL. (CC): 449, BORE SIZE(MM): 97, OVERSIZE(MM): STD   $2.00 
CW19  FITS MODEL: 450 XC-F 07-08, BORE(MM) X STROKE (MM): 97 x 60.8, DISPL. (CC): 449, BORE SIZE(MM): 97, OVERSIZE(MM): STD   $2.00 
CW19  FITS MODEL: 450 SX-F 07-08, 13.5:1 Compression. Skirt coated, BORE(MM) X STROKE (MM): 97 x 60.8, DISPL. (CC): 449, BORE SIZE(MM): 97, OVERSIZE(MM): STD   $2.00 
CW20  FITS MODEL: 520 SX/ 525 SX 00-06, BORE(MM) X STROKE (MM): 95 x 72, DISPL. (CC): 510, BORE SIZE(MM): 95.0, OVERSIZE(MM): STD   $2.00 
CW20  FITS MODEL: 520 SX/ 525 SX 00-06, BORE(MM) X STROKE (MM): 95 x 72, DISPL. (CC): 510, BORE SIZE(MM): 97.0, OVERSIZE(MM): 2   $2.00 
CW20  FITS MODEL: 525 03-06, 11:1 Compression. Cylinder boring and replating required for oversizes, BORE(MM) X STROKE (MM): 95 x 72, DISPL. (CC): 510, BORE SIZE(MM): 95.0, OVERSIZE(MM): STD   $2.00 
CW20  FITS MODEL: 525 03-06, 11:1 Compression. Cylinder boring and replating required for oversizes, BORE(MM) X STROKE (MM): 95 x 72, DISPL. (CC): 510, BORE SIZE(MM): 97.0, OVERSIZE(MM): 2   $2.00 
CW20  FITS MODEL: 520 EXC/ 525 EXC 00-07, BORE(MM) X STROKE (MM): 95 x 72, DISPL. (CC): 510, BORE SIZE(MM): 95.0, OVERSIZE(MM): STD   $2.00 
CW20  FITS MODEL: 520 EXC/ 525 EXC 00-07, BORE(MM) X STROKE (MM): 95 x 72, DISPL. (CC): 510, BORE SIZE(MM): 97.0, OVERSIZE(MM): 2.0   $2.00 
CW20  FITS MODEL: 525 03-06 12.5:1 Compression. Cylinder boring and replating required for oversizes, BORE(MM) X STROKE (MM): 95 x 72, DISPL. (CC): 510, BORE SIZE(MM): 95.0, OVERSIZE(MM): STD   $2.00 
CW20  FITS MODEL: 525 03-06 12.5:1 Compression. Cylinder boring and replating required for oversizes, BORE(MM) X STROKE (MM): 95 x 72, DISPL. (CC): 510, BORE SIZE(MM): 97.0, OVERSIZE(MM): 2.0   $2.00 

Wrist Pins

Part # Description Retail
0913-0013  FITS MODEL: 450 SX 03-06, 12:1 Compression. Cylinder boring and replating required for oversizes, BORE(MM) X STROKE (MM): 95 x 63.4, DISPL. (CC): 449, BORE SIZE(MM): 95.0, OVERSIZE(MM): STD   $15.58 
0913-0013  FITS MODEL: 450 SX 03-06, 13:1 Compression. Cylinder boring and replating required for oversizes, BORE(MM) X STROKE (MM): 95 x 63.4, DISPL. (CC): 449, BORE SIZE(MM): 95.0, OVERSIZE(MM): STD   $15.58 
0913-0013  FITS MODEL: 450 SX 03-06, 13:1 Compression. Cylinder boring and replating required for oversizes, BORE(MM) X STROKE (MM): 95 x 63.4, DISPL. (CC): 449, BORE SIZE(MM): 97.0, OVERSIZE(MM): 2   $15.58 
0913-0013  FITS MODEL: 520 SX/ 525 SX 00-06, BORE(MM) X STROKE (MM): 95 x 72, DISPL. (CC): 510, BORE SIZE(MM): 95.0, OVERSIZE(MM): STD   $15.58 
0913-0013  FITS MODEL: 520 SX/ 525 SX 00-06, BORE(MM) X STROKE (MM): 95 x 72, DISPL. (CC): 510, BORE SIZE(MM): 97.0, OVERSIZE(MM): 2   $15.58 
0913-0013  FITS MODEL: 525 03-06, 11:1 Compression. Cylinder boring and replating required for oversizes, BORE(MM) X STROKE (MM): 95 x 72, DISPL. (CC): 510, BORE SIZE(MM): 95.0, OVERSIZE(MM): STD   $15.58 
0913-0013  FITS MODEL: 525 03-06, 11:1 Compression. Cylinder boring and replating required for oversizes, BORE(MM) X STROKE (MM): 95 x 72, DISPL. (CC): 510, BORE SIZE(MM): 97.0, OVERSIZE(MM): 2   $15.58 
0913-0013  FITS MODEL: 520 EXC/ 525 EXC 00-07, BORE(MM) X STROKE (MM): 95 x 72, DISPL. (CC): 510, BORE SIZE(MM): 95.0, OVERSIZE(MM): STD   $15.58 
0913-0013  FITS MODEL: 520 EXC/ 525 EXC 00-07, BORE(MM) X STROKE (MM): 95 x 72, DISPL. (CC): 510, BORE SIZE(MM): 97.0, OVERSIZE(MM): 2.0   $15.58 
0913-0013  FITS MODEL: 525 03-06 12.5:1 Compression. Cylinder boring and replating required for oversizes, BORE(MM) X STROKE (MM): 95 x 72, DISPL. (CC): 510, BORE SIZE(MM): 95.0, OVERSIZE(MM): STD   $15.58 
0913-0013  FITS MODEL: 525 03-06 12.5:1 Compression. Cylinder boring and replating required for oversizes, BORE(MM) X STROKE (MM): 95 x 72, DISPL. (CC): 510, BORE SIZE(MM): 97.0, OVERSIZE(MM): 2.0   $15.58 

Descriptions and notes

Wiseco rings fit only Wiseco pistons.

This item appears on page 916 of the OffRoad Catalog