Pistons for Komatsu®
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Pistons for Komatsu®

The pistons are the hardest working components inside a diesel engine. The piston must transform the energy of the combustion expanding gases into mechanical energy. Diesel engines must operate at much higher pressures and at greater temperatures, and this places much more strain on the pistons.

CTP pistons are manufactured from special materials like eutectic aluminum, ductile iron and steel alloy. Surface treatments such as anodizing and nitriding are typically used in the ring grooves and crown area for durability. Anti-friction coatings like tinning, phosphate and graphite provide scuff protection during initial engine break in. CTP pistons are designed and manufactured to meet or exceed the most rigorous and stringent specifications.

wdt_ID Part No. Description Application
1 6137-32-2130 PISTON S6D105
2 6138-32-2120 PISTON SA6D110 
3 6151-31-2710 PISTON EGS240, S6D125, WA470
4 6152-32-2510 PISTON D87E, D87P, DCA, EGS360,380, PC400, PW400MH, S6D125E, SA6D125E, SAA6D125E, WA450, WA470, WA480
5 6162-35-2120 PISTON S6D170E, SA12V170E, SA6D170E, SAA6D170E, WA700
6 6207-31-2120 PISTON S6D95L 
7 6209-31-2180 PISTON PC200, PC210, PC220, PC250, SA6D95L, SAA6D95LE
8 6211-32-2130 PISTON DCA, S6D140E, SA6D140, SA6D140E, SAA6D140E, SDA12V140, SDA12V140E, SDA6D140E
9 6212-31-2170 PISTON DCA, EGS1000, EGS1050, EGS1200, EGS500, EGS570, EGS630, SA12V140, SA6D140, SA6D140A
10 6217-31-2130 PISTON DCA, HM350, SA6D140E, SAA6D140E, SDA6D140E, WA500

* Other part no. not included in the list are available. Please contact your sales representative if you have any questions. Part Numbers are used for reference purposes only.

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