Standard Ignition EGV312 Exhaust Gas Recirculation (EGR) Valve
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Standard Ignition

Standard Ignition EGV312 Exhaust Gas Recirculation (EGR) Valve

Brand Standard Ignition EGV312
Digital/Mechanical Mechanical
Gaskets Included Yes
Hose Connector Quantity 1
Mounting Type Screw-in
Vacuum Port Quantity 1
Fits Chevrolet, GMC, Oldsmobile, and Pontiac · 130 vehicles

Complete replacement. Includes a reinforced gasket for a more thorough swap.

Stainless steel components. Built for durability in demanding emission control service.

Mechanical design. Screw-in installation with one vacuum port.

Cross-references 2-3048C, 4F1037 and 70-5529 for the same application. See all 10.

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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.

Related reading

This part fits 130 vehicles
Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.
YearMakeModelTransmissionLitersCylindersNotes
1979CheckerMarathon—4.1LL6OE No. 17057430
1979ChevroletCamaroAutomatic4.1LL6OE No. 17057430; w/ Federal Emissions
1979ChevroletCamaroManual4.1LL6OE No. 17062490; w/ Federal Emissions
1979ChevroletCaprice—4.1LL6OE No. 17057430; w/ Federal Emissions
1979ChevroletImpala—4.1LL6OE No. 17057430; w/ Federal Emissions
1979ChevroletNovaAutomatic4.1LL6OE No. 7041418, 17057430; w/ Federal Emissions
1978ChevroletC10—4.1LL6OE No. 7043042; w/ Calif. Emissions
1978ChevroletC10 Suburban—4.1LL6OE No. 7043042; w/ Calif. Emissions
1978ChevroletC20—4.1LL6OE No. 7043042; w/ Calif. Emissions
1978ChevroletC30—4.1LL6OE No. 7043042; w/ Calif. Emissions
1978ChevroletG10—4.1LL6OE No. 7043042; w/ Calif. Emissions
1978ChevroletG30—4.1LL6OE No. 7043042; w/ Calif. Emissions
1978ChevroletK10—4.1LL6OE No. 7043042; w/ Calif. Emissions
1978ChevroletK20—4.1LL6OE No. 7043042; w/ Calif. Emissions
1978ChevroletK5 Blazer—4.1LL6OE No. 7043042; w/ Calif. Emissions
1978ChevroletNova—4.1LL6OE No. 17057430
1978GMCC15—4.1LL6OE No. 7043042; w/ Calif. Emissions
1978GMCC15 Suburban—4.1LL6OE No. 7043042; w/ Calif. Emissions
1978GMCC25—4.1LL6OE No. 7043042; w/ Calif. Emissions
1978GMCC35—4.1LL6OE No. 7043042; w/ Calif. Emissions
1978GMCG15—4.1LL6OE No. 7043042; w/ Calif. Emissions
1978GMCG35—4.1LL6OE No. 7043042; w/ Calif. Emissions
1978GMCJimmy—4.1LL6OE No. 7043042; w/ Calif. Emissions
1978GMCK15—4.1LL6OE No. 7043042; w/ Calif. Emissions
1978GMCK25—4.1LL6OE No. 7043042; w/ Calif. Emissions
1976ChevroletCamaro—4.1LL6OE No. 7043042
1976ChevroletEl Camino—4.1LL6OE No. 7043042
1976ChevroletNova—4.1LL6OE No. 7043042
1976GMCSprint—4.1LL6OE No. 7043042
1976OldsmobileOmega—4.1LL6OE No. 7043042
1976PontiacBonneville—6.6LV8—
1976PontiacCatalina—6.6LV8—
1976PontiacFirebird—6.6LV8OE No. 7043577; w/ Federal Emissions
1976PontiacGrand LeMans—6.6LV8OE No. 7043577
1976PontiacGrand Prix—6.6LV8OE No. 7043577; w/ Federal Emissions
1976PontiacGrand Safari—6.6LV8Compatible with vehicles equipped with Federal Emissions.
1976PontiacLaurentian—6.6LV8OE No. 7043577
1976PontiacLeMans—6.6LV8OE No. 7043577
1976PontiacParisienne—6.6LV8OE No. 7043577
1975CheckerMarathon—4.1LL6OE No. 7043039, 7043043
1975ChevroletCamaro—4.1LL6OE No. 7043042
1975ChevroletEl Camino—4.1LL6OE No. 7043042
1975ChevroletMalibu—4.1LL6OE No. 7043042
1975ChevroletNova—4.1LL6OE No. 7043042
1975GMCSprint—4.1LL6OE No. 7043042
1975PontiacBonneville—6.6LV8—
1975PontiacCatalina—6.6LV8OE No. 7043577; w/ Federal Emissions
1975PontiacFirebird—6.6LV8OE No. 7043577; w/ Federal Emissions
1975PontiacGrand Am—7.5LV8OE No. 7043577
1975PontiacGrand Am—6.6LV8—
1975PontiacGrand LeMans—6.6LV8OE No. 7043577
1975PontiacGrand Prix—6.6LV8OE No. 7043577; w/ Federal Emissions
1975PontiacGrand Safari—6.6LV8—
1975PontiacLeMans—6.6LV8OE No. 7043577
1974BuickApollo—4.1LL6—
1974CheckerMarathon—4.1LL6OE No. 7043039
1974ChevroletBel Air—5.7LV8OE No. 7041409
1974ChevroletBlazerManual4.1LL6OE No. 7043043
1974ChevroletC10 PickupManual4.1LL6OE No. 7043043
1974ChevroletC10 SuburbanManual4.1LL6OE No. 7043043
1974ChevroletC20 Pickup—4.1LL6—
1974ChevroletC20 Pickup—7.4LV8—
1974ChevroletC30 PickupManual4.1LL6OE No. 7043043
1974ChevroletC30 Pickup—7.4LV8—
1974ChevroletCamaro—5.7LV8OE No. 7041409
1974ChevroletCamaro—4.1LL6OE No. 7043042
1974ChevroletCaprice—5.7LV8—
1974ChevroletChevelle—5.7LV8—
1974ChevroletCorvette—7.4LV8OE No. 7043043
1974ChevroletG10 VanManual4.1LL6OE No. 7043043
1974ChevroletG10 Van—7.4LV8—
1974ChevroletG10 VanManual5.7LV8OE No. 7040318
1974ChevroletG20 Van—5.7LV8OE No. 7041409
1974ChevroletG30 Van—4.1LL6—
1974ChevroletImpala—5.7LV8OE No. 7041409
1974ChevroletK10 PickupManual4.1LL6OE No. 7043043
1974ChevroletK20 Pickup—4.1LL6—
1974ChevroletK20 Suburban—4.1LL6—
1974ChevroletK20 Suburban—5.7LV8—
1974ChevroletK20 Suburban—7.4LV8—
1974ChevroletK30 Pickup—4.1LL6—
1974ChevroletMonte Carlo—5.7LV8OE No. 7041409
1974ChevroletNova—5.7LV8OE No. 7041409
1974ChevroletNova—4.1LL6OE No. 7043042
1974ChevroletP20 Van—4.1LL6OE No. 7043043
1974ChevroletP30 Van———OE No. 7043043
1974GMCC15/C1500 PickupManual4.1LL6OE No. 7043043
1974GMCC15/C1500 SuburbanManual4.1LL6OE No. 7043043
1974GMCC25/C2500 Pickup—4.1LL6—
1974GMCC35/C3500 Pickup—4.1LL6—
1974GMCG15/G1500 Van—4.1LL6—
1974GMCG25/G2500 Van—4.1LL6—
1974GMCG35/G3500 Van—5.7LV8OE No. 7041409
1974GMCJimmyManual4.1LL6OE No. 7043043
1974GMCK15/K1500 PickupManual4.1LL6OE No. 7043043
1974GMCK25/K2500 Pickup—4.1LL6—
1974GMCK35/K3500 Pickup—4.1LL6—
1974GMCP15/P1500 Van—4.1LL6OE No. 7043043
1974GMCP25/P2500 Van—4.1LL6OE No. 7043043
1974GMCP35/P3500 Van—4.1LL6OE No. 7043043
1974OldsmobileOmega—4.1LL6—
1974PontiacGrand Am—7.5LV8—
1973ChevroletBlazerManual5.7LV8OE No. 7040318
1973ChevroletBlazer—7.4LV8OE No. 7047066
1973ChevroletC10 Pickup—7.4LV8OE No. 7047066
1973ChevroletC10 PickupManual5.7LV8OE No. 7040318
1973ChevroletC10 Suburban—7.4LV8OE No. 7047066
1973ChevroletC10 SuburbanManual5.7LV8OE No. 7040318
1973ChevroletC20 Pickup—7.4LV8—
1973ChevroletC20 Suburban—7.4LV8—
1973ChevroletC30 Pickup—7.4LV8—
1973ChevroletCaprice—7.4LV8—
1973ChevroletCorvette—7.4LV8OE No. 7043043
1973ChevroletG10 VanManual5.7LV8OE No. 7040318
1973ChevroletG10 Van—7.4LV8—
1973ChevroletG30 VanManual5.7LV8OE No. 7040318
1973ChevroletK10 PickupManual5.7LV8OE No. 7040318
1973ChevroletK10 SuburbanManual5.7LV8OE No. 7040318
1973ChevroletK20 Suburban—5.7LV8—
1973GMCC15/C1500 Pickup—7.4LV8OE No. 7047066
1973GMCC15/C1500 PickupManual5.7LV8OE No. 7040318
1973GMCC15/C1500 SuburbanManual5.7LV8OE No. 7040318
1973GMCC15/C1500 Suburban—7.4LV8OE No. 7047066
1973GMCG15/G1500 VanManual5.7LV8OE No. 7040318
1973GMCG25/G2500 VanManual5.7LV8OE No. 7040318
1973GMCJimmy—7.4LV8OE No. 7047066
1973GMCJimmyManual5.7LV8OE No. 7040318
1973GMCK15/K1500 PickupManual5.7LV8OE No. 7040318
1973GMCK25/K2500 Suburban—5.7LV8—
1973PontiacGrand Am—7.5LV8—
Directly replaces or cross-references 10 part numbers
Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.
2-3048C4F103770-5529130-128303711232522817051838E31114EGR105EGR1207