Product Description
National front engine crankshaft repair sleeve designed as a direct replacement for select GMC PM251 engines from 1956–1959. Sold new and supplied as a single genuine National repair sleeve (SX-CR7X). Interchange references include Timken, SKF, C412, VEMO, and King 48-25.
Product Specifications
BrandNational
TypeEngine Crankshaft Repair Sleeve
Manufacturer Part NumberSX-CR7X 1959 1958 1957 1956 Gaskets
Manufacturer Warranty1 Year
Interchange Part NumberTimken SKF C412 VEMO King 48-25
Placement on VehicleEngine > Hardware Fasteners Fittings
Compatible MakeGMC
Compatible ModelPM251
Compatible Year1959 1958 1957 1956
Core ChargeFree - No Core Charge
PositionFront
Fitment TypeDirect Replacement
Bundle Description1 pc Genuine National Engine Crankshaft Repair Sleeve
UPCDoes not apply
Country of OriginUnited States
Manufacturer Warranty1 Year
Interchange Part NumberTimken; SKF; C412; VEMO; King 48-25
Core ChargeFree - No Core Charge
PositionFront
Fitment TypeDirect Replacement
Bundle Description1 pc Genuine National Engine Crankshaft Repair Sleeve
Country of OriginUnited States
UPCDoes not apply
Vehicle Fitment
| Year | Make | Model | Engine | Trim | Transmission |
|---|
| 1956 | GMC | PM251 | | | |
| 1957 | GMC | PM251 | | | |
| 1958 | GMC | PM251 | | | |
| 1959 | GMC | PM251 | | | |
Always compare the part number and listed specifications with your original part before ordering.