Standard Ignition EGV312 Exhaust Gas Recirculation (EGR) Valve

Standard Ignition EGV312 EGR Valve

Standard Ignition EGV312 is a mechanical exhaust gas recirculation valve for select Chevrolet, GMC, Pontiac, and Oldsmobile applications from the 1970s. It uses stainless steel valve components, a polyester-reinforced silicone diaphragm, and a reinforced gasket to support a complete replacement.

Key Features

• Mechanical EGR valve with 1 vacuum port and 1 hose connector
• Screw-in mounting type for direct replacement applications
• Stainless steel valve components for durability
• Polyester-reinforced silicone diaphragm resists thermal aging up to 200°C
• Gaskets included for a more complete service replacement
• Standard Ignition EGV312 cross-references to 2-3048C and EGR105 for the same application

Product Details

This EGR valve helps restore proper exhaust gas recirculation control on classic GM vehicles that use a mechanical, vacuum-operated design. Standard Ignition builds the EGV312 with durable metal valve components and a heat-resistant diaphragm to handle elevated underhood temperatures. The included gasket supports a cleaner replacement during service, and the screw-in design matches the original-style mounting used on listed applications. Compatible With 1973-1979 Chevrolet Camaro, Chevrolet Caprice, Chevrolet Impala, Chevrolet Nova, Chevrolet C10, Chevrolet K10, Chevrolet Blazer, Chevrolet Corvette, Chevrolet Monte Carlo, GMC Jimmy, Pontiac Firebird, and related models shown in the fitment data.

Common Issues This Part Can Address

• Rough idle caused by a sticking EGR valve
• Emissions test failure related to EGR flow problems
• Driveability concerns from a leaking diaphragm
• Vacuum control issues on mechanical EGR systems
• Exhaust gas recirculation faults on classic Chevrolet Camaro and Pontiac Firebird applications

Installation Notes

Verify the OE number, mounting style, vacuum port count, and emissions calibration before installation. This part uses a screw-in mount and one vacuum port, so it should be matched to the original valve configuration on the vehicle. Use the included gasket during installation and inspect vacuum lines for cracks, loose connections, or carbon buildup that could affect EGR operation. Fits 1979 Chevrolet Camaro, N/A; Fits 1979 Chevrolet Caprice, N/A; Fits 1979 Chevrolet Impala, N/A; Fits 1979 Chevrolet Nova, N/A; Fits 1978 Chevrolet C10, N/A; Fits 1978 Chevrolet C10 Suburban, N/A; Fits 1978 Chevrolet C20, N/A; Fits 1978 Chevrolet C30, N/A; Fits 1978 Chevrolet G10, N/A; Fits 1978 Chevrolet G30, N/A; Fits 1978 Chevrolet K10, N/A; Fits 1978 Chevrolet K20, N/A; Fits 1978 Chevrolet K5 Blazer, N/A; Fits 1978 Chevrolet Nova, N/A; Fits 1978 GMC G15, N/A; Fits 1978 GMC G35, N/A; Fits 1978 GMC Jimmy, N/A; Fits 1974-1976 Chevrolet Camaro, N/A; Fits 1975-1976 Chevrolet El Camino, N/A; Fits 1974-1976 Chevrolet Malibu, N/A; Fits 1974-1976 Chevrolet Nova, N/A; Fits 1976 Oldsmobile Omega, N/A; Fits 1975-1976 Pontiac Bonneville, N/A; Fits 1976 Pontiac Catalina, N/A; Fits 1975-1976 Pontiac Firebird, N/A; Fits 1975-1976 Pontiac Grand LeMans, N/A; Fits 1975-1976 Pontiac Grand Prix, N/A; Fits 1976 Pontiac Laurentian, N/A; Fits 1975-1976 Pontiac LeMans, N/A; Fits 1976 Pontiac Parisienne, N/A; Fits 1975 Pontiac Catalina, N/A; Fits 1975 Pontiac Grand Am, N/A; Fits 1973-1975 Pontiac Grand Am, N/A; Fits 1974 Chevrolet Bel Air, N/A; Fits 1974 Chevrolet Blazer, N/A; Fits 1974 Chevrolet C10 Suburban, N/A; Fits 1974 Chevrolet Camaro, N/A; Fits 1973-1974 Chevrolet Caprice, N/A; Fits 1973-1974 Chevrolet Corvette, N/A; Fits 1974 Chevrolet Impala, N/A; Fits 1973-1974 Chevrolet K20 Suburban, N/A; Fits 1974 Chevrolet Malibu, N/A; Fits 1974 Chevrolet Monte Carlo, N/A; Fits 1974 Chevrolet Nova, N/A; Fits 1974 GMC G15/G1500 Van, N/A; Fits 1974 GMC G25/G2500 Van, N/A; Fits 1974 GMC G35/G3500 Van, N/A; Fits 1974 GMC Jimmy, N/A; Fits 1974 Oldsmobile Omega, N/A; Fits 1973 Chevrolet Blazer, N/A; Fits 1973 Chevrolet C10 Suburban, N/A; Fits 1973 Chevrolet C20 Suburban, N/A; Fits 1973 Chevrolet K10 Suburban, N/A; Fits 1973 GMC G15/G1500 Van, N/A; Fits 1973 GMC G25/G2500 Van, N/A; Fits 1973 GMC Jimmy, N/A

Quality Assurance

Standard Ignition is a global manufacturer of emission control components and maintains quality control from individual parts through finished assembly. The EGV312 is built with stainless steel valve components, a reinforced diaphragm, and an included gasket to support consistent replacement quality.