# Cometic Positive Ring and Band 8 x 12.3 x 12 x 17 Viton All of Cometic's gaskets and seals have been tested on both the street and the track as well as vigorous Dyno shakedowns - All of Cometic's gaskets and seals have been tested on both the street and the track as well as vigorous Dyno shakedowns - Valve Stem Seal This Part Fits: Year Make Model Submodel 1973-1974,1976 Avanti II Base 1977 Buick Century Custom 1992-1993 Buick Commercial Chassis Base 1992-1993 Buick Roadmaster Base 1992-1993 Buick Roadmaster Estate Wagon 1992-1993 Buick Roadmaster Limited 1990-1992 Cadillac Brougham Base 1990-1992 Cadillac Brougham d'Elegance 1992-1993 Cadillac Commercial Chassis Brougham 1993 Cadillac Fleetwood Base 1993 Cadillac Fleetwood Brougham 1985-1993 Chevrolet Astro Base 1985-1993 Chevrolet Astro CL 1985-1993 Chevrolet Astro CS 1987-1993 Chevrolet Astro LT 1970-1975 Chevrolet Bel Air Base 1970-1972 Chevrolet Biscayne Base 1992-1993 Chevrolet Blazer Cheyenne 1987 Chevrolet Blazer Custom Deluxe 1988-1991 Chevrolet Blazer Scottsdale 1987-1993 Chevrolet Blazer Silverado 1970-1972 Chevrolet Brookwood Base 1980 Chevrolet C10 Big Ten 1976-1980 Chevrolet C10 Cheyenne 1985-1986 Chevrolet C10 Custom 1976-1980 Chevrolet C10 Custom Deluxe 1976-1980,1985-1986 Chevrolet C10 Scottsdale 1976-1980,1985-1986 Chevrolet C10 Silverado 1970-1972 Chevrolet C10 Pickup Base 1970-1972 Chevrolet C10 Suburban Base 1988-1993 Chevrolet C1500 Cheyenne 1988-1992 Chevrolet C1500 Scottsdale 1988-1993 Chevrolet C1500 Silverado 1990-1993 Chevrolet C1500 WT 1992-1993 Chevrolet C1500 Suburban Base 1992-1993 Chevrolet C1500 Suburban Silverado 1976-1980 Chevrolet C20 Cheyenne 1985-1986 Chevrolet C20 Custom 1976-1980 Chevrolet C20 Custom Deluxe 1976-1980,1985-1986 Chevrolet C20 Scottsdale 1976-1980,1985-1986 Chevrolet C20 Silverado 1970-1972 Chevrolet C20 Pickup Base 1970-1972 Chevrolet C20 Suburban Base 1976-1980 Chevrolet C20 Suburban Custom Deluxe 1976-1980 Chevrolet C20 Suburban Scottsdale 1976-1977,1979-1980 Chevrolet C20 Suburban Silverado 1988-1993 Chevrolet C2500 Cheyenne 1988-1992 Chevrolet C2500 Scottsdale 1988-1993 Chevrolet C2500 Silverado 1992-1993 Chevrolet C2500 Suburban Base 1992-1993 Chevrolet C2500 Suburban Silverado 1976-1978 Chevrolet C30 Cheyenne 1976-1978 Chevrolet C30 Custom Deluxe 1976-1978 Chevrolet C30 Scottsdale 1976-1978 Chevrolet C30 Silverado 1970-1972 Chevrolet C30 Pickup Base 1988-1993 Chevrolet C3500 Cheyenne 1988-1992 Chevrolet C3500 Scottsdale 1988-1993 Chevrolet C3500 Silverado 1971-1972 Chevrolet Camaro Base 1970-1972 Chevrolet Camaro SS 1972 Chevrolet Camaro Z28 1970-1972,1986-1992 Chevrolet Caprice Base 1973-1976,1985-1993 Chevrolet Caprice Classic 1986-1990 Chevrolet Caprice Classic Brougham 1976 Chevrolet Caprice Classic Estate 1976 Chevrolet Caprice Classic Landau 1993 Chevrolet Caprice Classic LS 1987-1990 Chevrolet Caprice Classic LS Brougham 1991-1993 Chevrolet Caprice Classic LTZ 1975-1976 Chevrolet Caprice Classic Sport 1973-1974 Chevrolet Caprice Estate 1975 Chevrolet Caprice Estate Wagon 1970-1972 Chevrolet Chevelle Base 1970-1972 Chevrolet Chevelle Concours 1970-1972 Chevrolet Chevelle Concours Estate 1970-1972 Chevrolet Chevelle Greenbrier 1970-1972 Chevrolet Chevelle Malibu 1970-1972 Chevrolet Chevelle Nomad 1971-1972 Chevrolet Chevelle SS 1970 Chevrolet Chevelle SS 396 1991-1993 Chevrolet Commercial Chassis Base 1970-1976,1985-1987 Chevrolet El Camino Base 1975-1976 Chevrolet El Camino Classic 1985-1986 Chevrolet El Camino Conquista 1970-1974 Chevrolet El Camino Custom 1970-1976,1985-1987 Chevrolet El Camino SS 1970 Chevrolet Estate Base 1976,1985-1993 Chevrolet G10 Beauville 1986-1987 Chevrolet G10 Bonaventure 1976,1985-1993 Chevrolet G10 Chevy Van 1976,1985-1993 Chevrolet G10 Sportvan 1975-1980,1985-1993 Chevrolet G20 Beauville 1975-1980,1985-1993 Chevrolet G20 Chevy Van 1978-1980 Chevrolet G20 Nomad 1975-1980,1985-1993 Chevrolet G20 Sportvan 1975-1980,1985-1993 Chevrolet G30 Beauville 1975-1980,1985-1993 Chevrolet G30 Chevy Van 1975-1980,1985-1993 Chevrolet G30 Hi-Cube 1975-1980,1987-1993 Chevrolet G30 Sportvan 1970-1976,1985 Chevrolet Impala Base 1975-1976 Chevrolet Impala Custom 1976 Chevrolet Impala Custom Landau 1976 Chevrolet Impala S 1975-1976 Chevrolet Impala Sport 1975-1980 Chevrolet K10 Cheyenne 1985-1986 Chevrolet K10 Custom 1975-1980 Chevrolet K10 Custom Deluxe 1975-1980,1985-1986 Chevrolet K10 Scottsdale 1975-1980,1985-1986 Chevrolet K10 Silverado 1970-1972 Chevrolet K10 Pickup Base 1970-1972 Chevrolet K10 Suburban Base 1975-1979 Chevrolet K10 Suburban Custom Deluxe 1975-1979 Chevrolet K10 Suburban Scottsdale 1975-1977,1979 Chevrolet K10 Suburban Silverado 1988-1993 Chevrolet K1500 Cheyenne 1988-1992 Chevrolet K1500 Scottsdale 1988-1993 Chevrolet K1500 Silverado 1991 Chevrolet K1500 Sport 1990-1993 Chevrolet K1500 WT 1992-1993 Chevrolet K1500 Suburban Base 1992-1993 Chevrolet K1500 Suburban Silverado 1975-1980 Chevrolet K20 Cheyenne 1985 Chevrolet K20 Custom 1975-1980 Chevrolet K20 Custom Deluxe 1975-1980,1985 Chevrolet K20 Scottsdale 1975-1980,1985 Chevrolet K20 Silverado 1970-1972 Chevrolet K20 Pickup Base 1970-1972 Chevrolet K20 Suburban Base 1975-1980 Chevrolet K20 Suburban Custom Deluxe 1975-1980 Chevrolet K20 Suburban Scottsdale 1975-1977,1979-1980 Chevrolet K20 Suburban Silverado 1988-1993 Chevrolet K2500 Cheyenne 1988-1992 Chevrolet K2500 Scottsdale 1988-1993 Chevrolet K2500 Silverado 1992 Chevrolet K2500 Suburban Base 1992 Chevrolet K2500 Suburban Silverado 1977-1980 Chevrolet K30 Cheyenne 1977-1980 Chevrolet K30 Custom Deluxe 1977-1980 Chevrolet K30 Scottsdale 1977-1980 Chevrolet K30 Silverado 1970-1972 Chevrolet K30 Pickup Base 1988-1993 Chevrolet K3500 Cheyenne 1988-1992 Chevrolet K3500 Scottsdale 1988-1993 Chevrolet K3500 Silverado 1976 Chevrolet K5 Blazer Base 1975-1978 Chevrolet K5 Blazer Cheyenne 1975,1977-1978 Chevrolet K5 Blazer Custom Deluxe 1978 Chevrolet K5 Blazer Silverado 1970-1972 Chevrolet Kingswood Base 1970-1972 Chevrolet Kingswood Estate 1970-1974,1985-1988 Chevrolet Monte Carlo Base 1974,1976 Chevrolet Monte Carlo Landau 1986-1988 Chevrolet Monte Carlo LS 1975-1976 Chevrolet Monte Carlo S 1970-1972 Chevrolet Nova Base 1977 Chevrolet P10 Base 1977 Chevrolet P10 Step-Van 1987-1989 Chevrolet P20 Base 1987-1989 Chevrolet P20 Step-Van 1976,1987-1993 Chevrolet P30 Base 1976,1987-1990 Chevrolet P30 Step-Van 1972 Chevrolet P30 Van Base 1987 Chevrolet R10 Custom Deluxe 1987 Chevrolet R10 Scottsdale 1987 Chevrolet R10 Silverado 1987 Chevrolet R10 Suburban Custom Deluxe 1987-1988 Chevrolet R10 Suburban Scottsdale 1987-1988 Chevrolet R10 Suburban Silverado 1989-1991 Chevrolet R1500 Suburban Scottsdale 1989-1991 Chevrolet R1500 Suburban Silverado 1988 Chevrolet R20 Cheyenne 1987-1988 Chevrolet R20 Custom Deluxe 1987-1988 Chevrolet R20 Scottsdale 1987-1988 Chevrolet R20 Silverado 1987 Chevrolet R20 Suburban Custom Deluxe 1987-1988 Chevrolet R20 Suburban Scottsdale 1987-1988 Chevrolet R20 Suburban Silverado 1989 Chevrolet R2500 Silverado 1989-1991 Chevrolet R2500 Suburban Scottsdale 1989-1991 Chevrolet R2500 Suburban Silverado 1988 Chevrolet R30 Cheyenne 1987-1988 Chevrolet R30 Custom Deluxe 1987-1988 Chevrolet R30 Scottsdale 1987-1988 Chevrolet R30 Silverado 1989-1991 Chevrolet R3500 Cheyenne 1989-1990 Chevrolet R3500 Scottsdale 1989-1991 Chevrolet R3500 Silverado 1991 Chevrolet S10 Baja 1988-1993 Chevrolet S10 Base 1988-1990 Chevrolet S10 Durango 1992-1993 Chevrolet S10 EL 1988-1989 Chevrolet S10 Sport 1988-1992 Chevrolet S10 Tahoe 1988-1993 Chevrolet S10 Blazer Base 1988-1989 Chevrolet S10 Blazer High Country 1988-1990,1992 Chevrolet S10 Blazer Sport 1988,1990-1993 Chevrolet S10 Blazer Tahoe 1991-1993 Chevrolet S10 Blazer Tahoe LT 1970-1972 Chevrolet Townsman Base ## Details - **Price:** 25.59 CAD - **Vendor:** Cometic Gasket - **Type:** Valve Seals ## Variants | Variant | Price | Available | |---------|-------|-----------| | Default Title | 25.59 CAD | In stock | ## Images - Photo - Primary - Photo - Primary - User 9 - Logo Image --- > Source: [Standard Auto Part](https://www.standardautopart.com/products/cometic-positive-ring-and-band-8-x-12-3-x-12-x-17-viton) > Updated: 2026-06-26