Caterpillar Replacement Parts
PE Energy stocks aftermarket replacement parts that cross-reference directly to Caterpillar® part numbers, filters, fuel pumps, gaskets, seals, pulleys, and engine components for Cat® diesel and natural-gas equipment. Search by your Cat® part number below; both hyphenated (322-3155) and solid (3223155) formats resolve to the same item.
Browse Caterpillar®-compatible parts by system: turbochargers, fuel system components, fuel injectors, exhaust components, sleeve bearings, remanufactured assemblies, governor components, oil coolers, pistons, cylinder head parts, water pumps, belts, pulleys and drives. Each aftermarket part is engineered to match the listed Caterpillar® number and is a compatible alternative for maintenance and repair, not a genuine Cat® OEM part.
How do I cross-reference a Caterpillar part number?
Enter the Caterpillar® part number exactly as printed on the component or in your parts manual. Our catalog indexes both the hyphenated and non-hyphenated forms, so 326-4689 and 3264689 return the same replacement part. Each result lists the part type and fitment so you can confirm before ordering or requesting a quote.
Popular Caterpillar part-number cross-references
Are these genuine Caterpillar OEM parts?
These are quality aftermarket replacement parts engineered to cross-reference to the listed Caterpillar® part numbers, not genuine Cat® OEM parts. They are intended as compatible alternatives for maintenance and repair. Caterpillar® and Cat® are trademarks of Caterpillar Inc.; PE Energy is not affiliated with or endorsed by Caterpillar Inc.
Can’t find your Caterpillar part number?
Our published catalog covers thousands of Cat® cross-references, and we source many more on request. Send us the part number and your equipment model and our team will confirm availability, pricing, and lead time, request a quote and we’ll respond promptly.
Showing 1–45 of 10869 results
-
(2J-30745 – WEAR RING CAT ALTERNATIVE PART
$0.00CAT Alternative Part -
003-2770 – O-RING CAT Alternative Part
CAT Alternative Part -
003-8137 – SEAL, O-RING CAT Alternative Part
CAT Alternative Part -
004-1963 – SEAL CAT Alternative Part
CAT Alternative Part -
004-1964 – SEAL, O-RING CAT Alternative Part
CAT Alternative Part -
005-7310 – RACE CAT Alternative Part
CAT Alternative Part -
005-8592 – SEAL CAT Alternative Part
CAT Alternative Part -
008-2103 – O-RING CAT Alternative Part
CAT Alternative Part -
009-2062 – RING CAT Alternative Part
CAT Alternative Part -
030-0167 – RING CAT Alternative Part
CAT Alternative Part -
030-3239 – RING CAT Alternative Part
CAT Alternative Part -
030-4605 – ORING CAT Alternative Part
CAT Alternative Part -
030-4606 – O-RING CAT Alternative Part
CAT Alternative Part -
031-4392 – RING CAT Alternative Part
CAT Alternative Part -
032-8970 – SEAL, O-RING CAT Alternative Part
CAT Alternative Part -
032-9007 – SHAFT, ROCKER LEVER CAT Alternative Part
CAT Alternative Part -
032-9313 – O-RING CAT ALTERNATIVE PART
CAT Alternative Part -
032-9714 – SEAL O RING CAT ALTERNATIVE PART
CAT Alternative Part -
032-9882 – O-RING CAT ALTERNATIVE PART
CAT Alternative Part -
032-9946 – GASKET, OIL PAN CAT ALTERNATIVE PART
CAT Alternative Part -
033-2379 – BEARING SET, MAIN .010 CAT ALTERNATIVE PART
CAT Alternative Part -
033-2380 – BEAIRNG SET, MAIN .020 CAT ALTERNATIVE PART
CAT Alternative Part -
033-2381 – BEARING SET, MAIN .030 CAT ALTERNATIVE PART
CAT Alternative Part -
033-5853 – O-RING CAT ALTERNATIVE PART
CAT Alternative Part -
033-5879 – RING CAT ALTERNATIVE PART
CAT Alternative Part -
033-6027 – O-RING CAT ALTERNATIVE PART
CAT Alternative Part -
033-6028 – SEAL O RING CAT ALTERNATIVE PART
CAT Alternative Part -
033-6031 – O-RING CAT ALTERNATIVE PART
CAT Alternative Part -
033-6032 – SEAL CAT ALTERNATIVE PART
CAT Alternative Part -
033-6033 – O RING CAT ALTERNATIVE PART
CAT Alternative Part -
033-6034 – SEAL O-RING CAT ALTERNATIVE PART
CAT Alternative Part -
033-6036 – O-RING CAT ALTERNATIVE PART
CAT Alternative Part -
033-6039 – O RING CAT ALTERNATIVE PART
CAT Alternative Part -
033-6042 – SEAL, O-RING CAT ALTERNATIVE PART
CAT Alternative Part -
033-6043 – O-RING CAT ALTERNATIVE PART
CAT Alternative Part -
033-6044 – O-RING CAT ALTERNATIVE PART
CAT Alternative Part -
033-7687 – GEAR, STARTER RING CAT ALTERNATIVE PART
CAT Alternative Part -
035-8059 – HEATER PLUG CAT ALTERNATIVE PART
CAT Alternative Part -
036-5802 – BUSHING, CAMSHAFT CAT ALTERNATIVE PART
CAT Alternative Part -
039-9196 – KIT CAT ALTERNATIVE PART
CAT Alternative Part -
061-7539 – SEAL CAT ALTERNATIVE PART
CAT Alternative Part -
061-7540 – SEAL, O-RING CAT ALTERNATIVE PART
CAT Alternative Part -
061-8561 – SEAL, O-RING CAT ALTERNATIVE PART
CAT Alternative Part -
061-8639 – O-RING CAT ALTERNATIVE PART
CAT Alternative Part -
061-9455 – SEAL, O-RING CAT ALTERNATIVE PART
CAT Alternative Part