MRG-1971 Mr. Gasket Rear Main Seal – Viton® – High Vacuum
Fits Chevrolet Small Block with two-piece rear main seal. Recommended for use with external vacuum pump.
Features:
- Repairs That Leaky Rear Main Sail
- Viton® Rubber Offers Both Abrasion Resistance & High Temperature Tolerance
- Upgrade for Rope Seal Equipped Cars or Silicone Rubber Main Seals
This Mr. Gasket Rear Main Seal is made from Viton® Rubber. This style of rubber can handle high temperature like silicone rubber, but with superior abrasion resistance. It’s durability and design make it recommended for applications that have high engine vacuum, like racing engines that utilize external vacuum pumps for crankcase evacuation.
Attributes:
| part type | Engine Main Bearing Gasket Set |
| Product Type | Rear Main Seal |
| Rear Main Seal Style | Two Piece |
| Sub Category | Gaskets and Sealing Systems |
| Warranty | Manufacturer’s Limited 90 Day Warranty |
| Weight | 0.1 |
| Engine | Chevrolet Small Block Gen I |
| Emission Code | 5 |
| Material | Viton |
| Category | Engine |
| Brand | Mr. Gasket |
Vehicle Applications:
| Make | Model | Years |
| Chevrolet | Bel Air | 1959 to 1981 |
| Chevrolet | Biscayne | 1959 to 1972 |
| Chevrolet | Blazer | 1969 to 1974 |
| Chevrolet | Brookwood | 1959 to 1972 |
| Chevrolet | C10 Pickup | 1960 to 1974 |
| Chevrolet | C10 Suburban | 1967 to 1985 |
| Chevrolet | C10 | 1975 to 1985 |
| Chevrolet | C15 | 1982 to 1985 |
| Chevrolet | C20 Pickup | 1960 to 1974 |
| Chevrolet | C20 Suburban | 1967 to 1985 |
| Chevrolet | C20 | 1975 to 1985 |
| Chevrolet | C30 Panel | 1966 to 1966 |
| Chevrolet | C30 Pickup | 1960 to 1974 |
| Chevrolet | C30 | 1975 to 1985 |
| Chevrolet | C35 | 1983 to 1985 |
| Chevrolet | C40 | 1960 to 1962 |
| Chevrolet | Camaro | 1967 to 1985 |
| Chevrolet | Caprice | 1966 to 1985 |
| Chevrolet | Chevelle | 1964 to 1973 |
| Chevrolet | Chevy II | 1963 to 1968 |
| Chevrolet | Corvette | 1959 to 1985 |
| Chevrolet | El Camino | 1959 to 1985 |
| Chevrolet | Estate | 1969 to 1970 |
| Chevrolet | G10 Van | 1968 to 1974 |
| Chevrolet | G10 | 1975 to 1985 |
| Chevrolet | G20 Van | 1967 to 1974 |
| Chevrolet | G20 | 1975 to 1985 |
| Chevrolet | G30 Van | 1970 to 1974 |
| Chevrolet | G30 | 1975 to 1985 |
| Chevrolet | Impala | 1959 to 1985 |
| Chevrolet | K10 Pickup | 1960 to 1974 |
| Chevrolet | K10 Suburban | 1967 to 1985 |
| Chevrolet | K10 | 1975 to 1985 |
| Chevrolet | K20 Panel | 1967 to 1967 |
| Chevrolet | K20 Pickup | 1960 to 1974 |
| Chevrolet | K20 Suburban | 1967 to 1985 |
| Chevrolet | K20 | 1975 to 1985 |
| Chevrolet | K30 Pickup | 1968 to 1974 |
| Chevrolet | K30 | 1977 to 1985 |
| Chevrolet | K5 Blazer | 1975 to 1985 |
| Chevrolet | Kingswood | 1959 to 1972 |
| Chevrolet | Laguna | 1973 to 1976 |
| Chevrolet | Malibu | 1964 to 1983 |
| Chevrolet | Monte Carlo | 1970 to 1985 |
| Chevrolet | Monza | 1975 to 1979 |
| Chevrolet | Nomad | 1959 to 1961 |
| Chevrolet | Nova | 1969 to 1979 |
| Chevrolet | P10 Series | 1961 to 1962 |
| Chevrolet | P10 Van | 1973 to 1973 |
| Chevrolet | P20 Series | 1961 to 1962 |
| Chevrolet | P20 Van | 1968 to 1974 |
| Chevrolet | P20 | 1981 to 1982 |
| Chevrolet | P30 Series | 1961 to 1962 |
| Chevrolet | P30 Van | 1968 to 1974 |
| Chevrolet | P30 | 1981 to 1982 |
| Chevrolet | Parkwood | 1959 to 1961 |
| Chevrolet | Suburban | 1959 to 1966 |
| Chevrolet | Townsman | 1969 to 1972 |
| Chevrolet | Truck | 1959 to 1960 |
| GMC | 1000 Series | 1960 to 1963 |
| GMC | 1500 Series | 1960 to 1963 |
| GMC | 2500 Series | 1960 to 1963 |
| GMC | 3000 | 1960 to 1966 |
| GMC | 3500 | 1960 to 1966 |
| GMC | C15 Suburban | 1975 to 1978 |
| GMC | C15/C1500 Pickup | 1967 to 1974 |
| GMC | C15/C1500 Suburban | 1967 to 1974 |
| GMC | C1500 Suburban | 1979 to 1985 |
| GMC | C1500 | 1979 to 1985 |
| GMC | C15 | 1975 to 1978 |
| GMC | C25 Suburban | 1975 to 1978 |
| GMC | C25/C2500 Pickup | 1967 to 1974 |
| GMC | C25/C2500 Suburban | 1967 to 1974 |
| GMC | C2500 Suburban | 1979 to 1985 |
| GMC | C2500 | 1979 to 1985 |
| GMC | C25 | 1975 to 1978 |
| GMC | C35/C3500 Pickup | 1967 to 1974 |
| GMC | C3500 | 1979 to 1985 |
| GMC | C35 | 1975 to 1978 |
| GMC | Caballero | 1978 to 1985 |
| GMC | G15/G1500 Van | 1967 to 1974 |
| GMC | G1500 | 1979 to 1985 |
| GMC | G15 | 1975 to 1978 |
| GMC | G25/G2500 Van | 1967 to 1974 |
| GMC | G2500 | 1979 to 1985 |
| GMC | G25 | 1975 to 1978 |
| GMC | G35/G3500 Van | 1970 to 1974 |
| GMC | G3500 | 1979 to 1985 |
| GMC | G35 | 1975 to 1978 |
| GMC | Jimmy | 1970 to 1985 |
| GMC | K15 Suburban | 1975 to 1978 |
| GMC | K15/K1500 Pickup | 1967 to 1974 |
| GMC | K15/K1500 Suburban | 1967 to 1974 |
| GMC | K1500 Suburban | 1979 to 1985 |
| GMC | K1500 | 1979 to 1985 |
| GMC | K15 | 1975 to 1978 |
| GMC | K25 Suburban | 1975 to 1978 |
| GMC | K25/K2500 Pickup | 1967 to 1974 |
| GMC | K25/K2500 Suburban | 1967 to 1974 |
| GMC | K2500 Suburban | 1979 to 1985 |
| GMC | K2500 | 1979 to 1985 |
| GMC | K25 | 1975 to 1978 |
| GMC | K35/K3500 Pickup | 1968 to 1974 |
| GMC | K3500 | 1979 to 1985 |
| GMC | K35 | 1977 to 1978 |
| GMC | P15/P1500 Van | 1967 to 1973 |
| GMC | P25/P2500 Van | 1967 to 1974 |
| GMC | P25 | 1975 to 1978 |
| GMC | P35/P3500 Van | 1967 to 1974 |
| GMC | P35 | 1975 to 1978 |
| GMC | Sprint | 1971 to 1977 |
| GMC | Suburban | 1960 to 1965 |



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