Generic 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.
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
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(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