Pistons

In a diesel engine, pistons are the hardest-working components. Gases expanding during combustion must be converted into mechanical energy by the piston. As a result, diesel engines operate at much higher pressures and temperatures, placing a greater strain on their pistons.

A variety of metallic materials are used to construct our pistons, including eutectic aluminum, ductile iron, and steel alloy. For durability, ring grooves and crown areas are usually treated with anodizing and nitriding. Scuff protection is provided by anti-friction coatings such as tinning, phosphate, and graphite during the initial engine break-in. Each piston is designed and manufactured to meet or exceed the most rigorous and stringent specifications.

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Additional Information

Our Caterpillar aftermarket pistons products include but are not limited to the part numbers below. We sell other engine parts too. Click the links here to view these products.

Engine ModelPart No.Description
30242973080PISTON AS
30342123677PISTON AS
3044C2344814PISTON
30461070984PISTON
30461078366PISTON STD
30461282952PISTON
30461283295PISTON
30462254284PISTON
30541166107PISTON
30541243524PISTON AS
30541306763PISTON AS
30541850104PISTON AS
30541350264PISTON AS
30544W5819PISTON AS
3054, 1104D3153395PISTON AS
3054, 30561521390PISTON AS
3054C/E2337232PISTON AS
3056E2168323PISTON AS
3066, 30642977752PISTON STD
3066, 30642977750PISTON STD
31147E3428PISTON
3114, 31167E1298PISTON
31161014495PISTON
31161051710PISTON
31161077563PISTON AS
31161154124PISTON AS
31164P2990PISTON AS
31166I1144PISTON BODY
31167C5668PISTON AS
3126, 3126B, 3126E2382729PISTON AS
32046N4221PISTON AS
32047C1146PISTON AS
32082W4831PISTON BODY
32082W8412PISTON AS
32087E4729PISTON BODY
32087W3846PISTON BODY
32089L7737PISTON
33061568263PISTON AS
3304, 33061548087PISTON AS
3304, 33068N3184PISTON AS
3304, 33069N5403PISTON BODY KIT
3304, 33068N3182PISTON AS
3304, 33069N5250PISTON BODY
3304, 3306/B1684531PISTON AS
3304, 33061290358PISTON AS
3304, 33061646560PISTON
3304, 33061654262PISTON AS
3306C1073565PISTON AS
34061010016PISTON AS
34067N3633PISTON BODY
34069Y4004PISTON
3406B9Y3116PISTON AS
3406, 3412B6N4126PISTON BODY
3406-08-12 00:00:009Y7212PISTON
3406B1601131PISTON AS
3406B/C7.0E+292PISTON AS
3406B/C7E0539PISTON AS
3406B/C9Y9889PISTON BODY
3406C1168154PISTON AS
3408B1746102PISTON AS
34121723280PISTON AS
35127C2431PISTON AS
35129Y4124PISTON AS
3516, 35082995204PISTON AS
C6.43244235PISTON
C6.62767475PISTON AS
C6.62822224PISTON AS
C72382698PISTON AS
C153564787BODY-STL P
C153569946BODY-STL P
C183196715PISTON AS
C183294510PISTON AS
C183294511PISTON AS
C323196716PISTON AS
D330/A, D333/A2M5558PISTON AS
D3439N2874PISTON BODY
D88N0931PISTON BODY
D8, D8H, D8K7N1366PISTON BODY
G3406 SI4P8996PISTON AS
G34127E3888PISTON AS
G35127E7600PISTON
G353, G3783S1824PISTON BODY
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