Overview
The Crown Automotive oil filter adapter seal kit, part number 33002970K, contains three rubber O-ring seals. O-ring seals sit between mating surfaces to help keep fluid from leaking, and this kit supplies three of them for the oil filter adapter.
Crown Automotive has offered replacement Jeep parts for over 50 years, with more than 8,000 part numbers, many of them factory-discontinued items. Confirm warranty coverage before purchase.
It fits the 1987–1992 Jeep Cherokee XJ, the 1987–1992 Comanche and the 1993 Grand Cherokee ZJ. Confirm fit for your vehicle’s year, model and trim before ordering.
Key features
- Three rubber O-ring seals per kit
- Replacement part for listed Jeep models
- Crown catalog includes more than 8,000 Jeep part numbers
- Brand says its quality is matched by a warranty
Before replacing O-rings
An O-ring sits in a groove and compresses against a flat mating surface, so its job depends on the groove being clean and the ring not being twisted. Rubber seals harden and flatten with heat and age, which is why they are commonly replaced whenever the adapter is removed for service. Reusing an old seal often leads to a slow leak that is hard to spot until the engine is warm.
Before fitting new seals, clean the groove and the mating face with a lint-free cloth, then inspect both for scratches or pitting that would stop the seal from sealing. Lightly coat the new O-rings with clean engine oil so they slide into place without pinching. Tighten the fasteners evenly, then start the engine and check around the adapter for seepage once it reaches operating temperature.
- Replace the O-rings any time the adapter is removed
- Check the seal groove for nicks before installing
- Re-check for leaks after the first oil change
Specifications
| Brand | Crown Automotive |
|---|---|
| Part number | 33002970K |
| UPC | 848399075755 |
| Seals included | 3 rubber O-rings |
Vehicle fitment
Trims include Base, Briarwood, Chief, Laredo, Limited, Pioneer and Sport on the 1987–1992 Cherokee XJ; Base, Chief, Eliminator, Laredo and Pioneer on the 1987–1992 Comanche; and Base, Laredo and Limited on the 1993 Grand Cherokee ZJ.
Models outside these years and body styles are not in the list. Confirm your vehicle’s year, model and trim before ordering.
What’s included
Three rubber O-ring seals. Check the package contents against your installation before starting.









