The piston is one of the most important components within the engine. It can be subjected to directional change up to 285 times every second and must withstand acceleration forces of 8500g’s. Cosworth high performance forged pistons are designed and engineered to withstand this type of punishment and STill perform. All Cosworth pistons are manufactured using the same methods as their Formula One pistons and include features such anti scuff skirt coating, ultra-strong pins, polished top and patented antidetonation bands. Additionally, each application uses a unique forging to minimize weight and ensure the strongest possible piston design.
Cosworth Forged Piston Sets - Includes pistons, pins and circlips-rings not included |
Subaru |
20003674 | Subaru WRX STi EJ25 (2.5L) 99.5mm 8.2:1cr |
20003675 | Subaru WRX STi EJ25 (2.5L) 99.75mm 8.2:1cr |
20003676 | Subaru WRX STi EJ25 (2.5L) 100.mm 8.2:1cr |
20003677 | Subaru WRX EJ20 (2.0L) 92.mm 8.0:1cr |
20003678 | Subaru WRX EJ20 (2.0L) 92.5mm 8.0:1cr |
20003682 | Subaru WRX STi EJ25 (2.6L) 99.5mm 8.2:1cr (For use with 81mm crankshaft) |
20003683 | Subaru WRX STi EJ25 (2.6L) 99.75mm 8.2:1cr (For use with 81mm crankshaft) |
20003684 | Subaru WRX STi EJ25 (2.6L) 100.mm 8.2:1cr (For use with 81mm crankshaft) |
20004531 | Subaru WRX STi EJ25 (2.5L) 99.5mm 9.2:1cr |
20004532 | Subaru WRX STi EJ25 (2.5L) 99.75mm 9.2:1cr |
20004533 | Subaru WRX STi EJ25 (2.5L) 100.mm 9.2:1cr |
20004534 | Subaru WRX STi EJ25 (2.6L) 99.5mm 9.2:1cr (For use with 81mm crankshaft) |
20004535 | Subaru WRX STi EJ25 (2.6L) 99.75mm 9.2:1cr (For use with 81mm crankshaft) |
20004536 | Subaru WRX STi EJ25 (2.6L) 100.mm 9.2:1cr (For use with 81mm crankshaft) |
20003685 | Subaru WRX EJ20 (2.2L) 92.mm 8.5:1cr (For use with 79mm crankshaft) |
20003687 | Subaru WRX EJ20 (2.2L) 92.5mm 8.5:1cr (For use with 79mm crankshaft) |
Nissan |
20003223 | Nissan VQ35 (3.5L) High CR 95.5mm 11.0:1cr |
20003225 | Nissan VQ35 (3.5L) High CR 96.mm 11.0:1cr |
20003679 | Nissan VQ35 (3.5L) Low CR 95.5mm 8.8:1cr (Turbo application) |
20003681 | Nissan VQ35 (3.5L) Low CR 96.mm 8.8:1cr (Turbo application) |
20005861 | Nissan RB26DETT 86.5mm 8.5:1cr-Stroker |
20005862 | Nissan RB26DETT 87 mm 8.5:1cr-Stroker |
20005863 | Nissan RB26DETT 87.5mm 8.5:1cr-Stroker |
Mitsubishi |
20003688 | Mitsubishi Evo IV-IX 4G63 (2.0L) 85mm 8.8:1cr |
20003690 | Mitsubishi Evo IV-IX 4G63 (2.0L) 86mm 8.8:1cr |
20003693 | Mitsubishi Evo IV-IX 4G63 (2.2L) 86mm 8.8:1cr For use with 94mm crank |
20005129 | Mitsubishi 4B11 (2.0L) 86mm 9.0:1cr |
20005130 | Mitsubishi 4B11 (2.0L) 86.5mm 9.0:1cr |
20005131 | Mitsubishi 4B11 (2.0L) 87mm 9.0:1cr |
20005856 | Mitsubishi 4B11 (2.2L) 86mm 9.0:1cr For use with 94mm crank |
20005859 | Mitsubishi 4B11 (2.2L) 86.5mm 9.0:1cr For use with 94mm crank |
20005860 | Mitsubishi 4B11 (2.2L) 87mm 9.0:1cr For use with 94mm crank |
Honda |
20005865 | Honda K20A 86mm 12:1cr |
20005866 | Honda K20A 86.25mm 12:1cr |
20005867 | Honda K20A 86.5mm 12:1cr |
Subaru Single piston with pin and clips |
20000897 | Subaru WRX STi EJ25 (2.5L) 99.5mm 8.2:1cr |
20000898 | Subaru WRX STi EJ25 (2.5L) 99.75mm 8.2:1cr |
20000899 | Subaru WRX STi EJ25 (2.5L) 100.mm 8.2:1cr |
20002111 | Subaru WRX EJ20 (2.0L) 92.mm 8.0:1cr |
20002112 | Subaru WRX EJ20 (2.0L) 92.5mm 8.0:1cr |
20002431 | Subaru WRX STi EJ25 (2.6L) 99.5mm 8.2:1cr (For use with 81mm crankshaft) |
20002432 | Subaru WRX STi EJ25 (2.6L) 99.75mm 8.2:1cr (For use with 81mm crankshaft) |
20002433 | Subaru WRX STi EJ25 (2.6L) 100.mm 8.2:1cr (For use with 81mm crankshaft) |
20002489 | Subaru WRX EJ20 (2.2L) 92.mm 8.5:1cr (For use with 79mm crankshaft) |
20002491 | Subaru WRX EJ20 (2.2L) 92.5mm 8.5:1cr (For use with 79mm crankshaft) |
20004522 | Subaru WRX STi EJ25 (2.5L) 99.5mm 9.2:1cr |
20004523 | Subaru WRX STi EJ25 (2.5L) 99.75mm 9.2:1cr |
20004524 | Subaru WRX STi EJ25 (2.5L) 100.mm 9.2:1cr |
20004528 | Subaru WRX STi EJ25 (2.6L) 99.5mm 9.2:1cr (For use with 81mm crankshaft) |
20004529 | Subaru WRX STi EJ25 (2.6L) 99.75mm 9.2:1cr (For use with 81mm crankshaft) |
20004530 | Subaru WRX STi EJ25 (2.6L) 100.mm 9.2:1cr (For use with 81mm crankshaft) |
Nissan Single piston with pin and clips |
20002036 | Nissan VQ35 (3.5L) High CR 95.5mm 11.0:1cr (Left hand bank) |
20002038 | Nissan VQ35 (3.5L) High CR 96.mm 11.0:1cr (Left hand bank) |
20002039 | Nissan VQ35 (3.5L) High CR 95.5mm 11.0:1cr (Right hand bank) |
20002041 | Nissan VQ35 (3.5L) High CR 96.mm 11.0:1cr (Right hand bank) |
20002132 | Nissan VQ35 (3.5L) Low CR 95.5mm 8.8:1cr (Turbo application) |
20002134 | Nissan VQ35 (3.5L) Low CR 96.mm 8.8:1cr (Turbo application) |
20005791 | Nissan RB26DETT 86.5mm 8.5:1cr-Stroker |
20005792 | Nissan RB26DETT 87 mm 8.5:1cr-Stroker |
20005793 | Nissan RB26DETT 87.5mm 8.5:1cr-Stroker |
Mitsubishi Single piston with pin and clips |
20000832 | Mitsubishi Evo IV-IX 4G63 (2.0L) 85mm 8.8:1cr |
20000834 | Mitsubishi Evo IV-IX 4G63 (2.0L) 86mm 8.8:1cr |
20000971 | Mitsubishi Evo IV-IX 4G63 (2.2L) 86mm 8.8:1cr For use with 94mm crank |
20004488 | Mitsubishi 4B11 (2.0L) 86mm 9.0:1cr |
20004675 | Mitsubishi 4B11 (2.0L) 86.5mm 9.0:1cr |
20004676 | Mitsubishi 4B11 (2.0L) 87mm 9.0:1cr |
20005783 | Mitsubishi 4B11 (2.2L) 86mm 9.0:1cr For use with 94mm crank |
20005784 | Mitsubishi 4B11 (2.2L) 86.5mm 9.0:1cr For use with 94mm crank |
20005785 | Mitsubishi 4B11 (2.2L) 87mm 9.0:1cr For use with 94mm crank |
Honda Single piston with pin and clips |
20005799 | Honda K20A 86mm 12:1cr |
20005800 | Honda K20A 86.25mm 12:1cr |
20005801 | Honda K20A 86.5mm 12:1cr |
Spare Piston Pins and Circlips |
PA2674 | 23mm Pin, Subaru EJ20 / EJ25 Piston |
PA1846 | 22mm Pin, Mitsubishi 4G63 Piston |
PA1251 | 22mm Pin, Nissan VQ Piston |
PP5433 | Circlip, 23mm Subaru EJ20 / EJ25 Piston. 2 req per piston |
PP2371 | Circlip, 22mm Nissan / Mitsubishi Piston. 2 req per piston |
SB8004 | Circlip install tool, Subaru |