The Enginetech SS337 is a precision-machined stainless steel rear crankshaft repair sleeve that restores a worn rear main seal journal on the crankshaft. Fits 1985-2005 Buick/Cadillac/Chevrolet/GMC 1.9L/2.0L/2.2L+ applications.
Important Notes
- Function: when the crankshaft rear main seal journal has been worn, grooved, or scored from years of seal contact, this sleeve presses over the damaged area to provide a fresh stainless steel surface for the existing seal to ride on - eliminating a leak-prone journal without replacing the crankshaft.
- Precision-engineered from stainless steel for hardness, dimensional stability, and a lower coefficient of friction than the original machined crank surface in many applications.
- IMPORTANT: this sleeve fits the large-journal crankshaft variant only. Many engines of this era were produced with both small and large journal cranks; measure the journal diameter and match against the sleeve spec before pressing on.
- Use with the existing rear main seal - replacing the seal is not required unless the seal itself is damaged. The repair sleeve provides a fresh sealing surface that the seal lip runs against.
- Installation: clean the crank journal, apply the included sealant (or Loctite 620) to the sleeve inside diameter, and press the sleeve on using a proper installation driver. Do not hammer the sleeve directly; use a flat driver or a purpose-made installation tool for a straight, square press.
- Always verify the crankshaft journal diameter, seal type, and application year against the OE crank being serviced before ordering - journal dimensions vary between engine families and between production years within the same engine family.
Specifications
| Part Number | SS337 |
| Product Type | Rear Crankshaft Repair Sleeve |
| Material | Stainless Steel |
| Function | Rear main seal journal repair (use with existing seal) |
| Journal Size | Large |
| Weight | 0.5 lbs |
| UPC | 707473101585 |
| Country of Origin | CA |
Vehicle Fitment
- 1985 Chevrolet S10 2.8L 173ci V6 OHV [VIN:B]
- 1985 Chevrolet S10 Blazer 2.8L 173ci V6 OHV [VIN:B]
- 1985 GMC S15 2.8L 173ci V6 OHV [VIN:B]
- 1985 GMC S15 Jimmy 2.8L 173ci V6 OHV [VIN:B]
- 1985-1986 Buick Skyhawk 2.0L 122ci I4 OHV [VIN:P]
- 1985-1986 Chevrolet Cavalier 2.0L 122ci I4 OHV [VIN:P]
- 1985-1986 Jeep Cherokee 2.8L 173ci V6 OHV
- 1985-1986 Jeep Wagoneer 2.8L 173ci V6 OHV
- 1985-1986 Oldsmobile Firenza 2.0L 122ci I4 OHV [VIN:P]
- 1986 Buick Century 2.8L 173ci V6 OHV [VIN:X]
- 1986 Chevrolet Celebrity 2.8L 173ci V6 OHV [VIN:X]
- 1986 Jeep Comanche 2.8L 173ci V6 OHV [VIN:W]
- 1986 Oldsmobile Cutlass Ciera 2.8L 173ci V6 OHV [VIN:X]
- 1986 Pontiac 6000 2.8L 173ci V6 OHV [VIN:X]
- 1986-1987 Oldsmobile Firenza 2.8L 173ci V6 OHV [VIN:W]
- 1986-1988 Cadillac Cimarron 2.8L 173ci V6 OHV [VIN:W]
- 1986-1988 Pontiac Fiero 2.8L 173ci V6 OHV [VIN:9]
- 1986-1989 Chevrolet Camaro 2.8L 173ci V6 OHV [VIN:S]
- 1986-1989 Chevrolet Cavalier 2.8L 173ci V6 OHV [VIN:W]
- 1986-1989 Chevrolet Celebrity 2.8L 173ci V6 OHV [VIN:W]
- ...and 80 additional applications
Enginetech Rear Crankshaft Repair Sleeves are precision-engineered stainless steel wear sleeves pressed over the rear main seal journal of the crankshaft to restore a smooth sealing surface on engines where the OE journal has been grooved, worn, or scored from years of seal contact. Instead of replacing the crankshaft, the repair sleeve slips over the worn area and provides a fresh, hardened bearing surface for the existing rear main seal to ride on - an economical rebuild solution with a lower coefficient of friction than the original crank surface in many cases. Always verify the crankshaft journal diameter and seal size against the sleeve specification before pressing it on, and follow Enginetech's installation procedure for a straight, square press to avoid distorting the sleeve or damaging the crank.
