| Mfg. | GM Performance |
| Part Type | Rear Main Seal Set |
| Materials/Construction | Silicone, 2-piece |
| Engine Family | Buick V6, Chevrolet V8 Big Block, Chevrolet/GM V8 Racing Big Block, Chrysler V8 Racing Big Block |
| Engine Displacement | 231 Stage II, 396, 402, 427, 454, 502, 510, 540, 572, B1, Chevrolet (4.840 Bore Centers), Chrysler, Hemi 2000, Oldsmobile (4.840 Bore Centers), Pontiac (4.840 Bore Centers), TS |
| Heavy Duty Supplier | Yes |
| Grade Type | Premium |
| Part Terminology | Engine Crankshaft Seal Kit |