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This California-legal replacement cat suits the 1978-1994 GMC G3500 / G35. MagnaFlow 3391432 is covered by EO D-193-164 and installs at the factory mounting points. Listed applications: 1979-1994 GMC G3500 (Rally, Rally Camper Special, Rally Custom, Rally STX, Vandura and more), 1978 GMC G35 (Magnavan, Rally, Rally Camper Special, Rally STX, Vandura and more), 1975-1986 Chevrolet K10 Suburban (Silverado, Custom Deluxe, Deluxe, Scottsdale, Custom) and 1975-1986 Chevrolet K20 (Cheyenne, Custom, Custom Deluxe, Deluxe, Scottsdale and more), plus 40 more models in the table below. Shipping weight is about 7 lb.
| Part number | 3391432 |
| Type | CARB Direct-Fit Catalytic Converter |
| Emissions | California Grade, CARB EO D-193-164 |
| Material | 16-gauge 409 stainless steel |
| Shipping weight | 7 lb |
Direct-fit and bolt-on; a capable DIYer can install it with the right tools, though professional installation is recommended.
Legal in all 50 states when the vehicle's engine family appears on this converter's Executive Order. Confirm your engine family before ordering. Check the fitment table below against your vehicle, including trim and engine.
| Make | Model | Chassis | Year | Engine |
|---|---|---|---|---|
| GMC | G3500 (Rally, Rally Camper Special, Rally Custom, Rally STX, Vandura, Vandura Special, Magnavan) | — | 1979-1994 | — |
| GMC | G35 (Magnavan, Rally, Rally Camper Special, Rally STX, Vandura, Vandura Special) | — | 1978 | — |
| Chevrolet | K10 Suburban (Silverado, Custom Deluxe, Deluxe, Scottsdale, Custom) | — | 1975-1986 | — |
| Chevrolet | K20 (Cheyenne, Custom, Custom Deluxe, Deluxe, Scottsdale, Silverado) | — | 1975-1986 | — |
| Chevrolet | K20 Suburban (Silverado, Custom Deluxe, Deluxe, Scottsdale, Custom) | — | 1975-1986 | — |
| Chevrolet | K5 Blazer (Base, Cheyenne, Silverado, Custom, Custom Deluxe, Deluxe, Scottsdale) | — | 1975-1986 | — |
| GMC | C15 Suburban (Sierra Classic, Sierra Grande, Base, High Sierra) | — | 1975-1978 | — |
| GMC | C1500 (Base, Heavy Half, High Sierra, Sierra Classic, Sierra Grande, Street Coupe) | — | 1979-1986 | — |
| GMC | C25 (Sierra Classic, Sierra Grande, Base, High Sierra) | — | 1975-1978 | — |
| GMC | C2500 (Base, High Sierra, Sierra Classic, Sierra Grande) | — | 1979-1986 | — |
| GMC | C2500 Suburban (Base, High Sierra, Sierra Classic, Sierra Grande) | — | 1979-1986 | — |
| GMC | K15 (Sierra Grande, Base, High Sierra, Indy Hauler, Sierra Classic) | — | 1975-1978 | — |
| GMC | K15 Suburban (Base, High Sierra, Sierra Classic, Sierra Grande) | — | 1975-1978 | — |
| GMC | K1500 (Base, High Sierra, Sierra Classic, Sierra Grande) | — | 1979-1986 | — |
| GMC | K25 (Base, High Sierra, Sierra Classic, Sierra Grande) | — | 1975-1978 | — |
| GMC | K2500 (Base, High Sierra, Sierra Classic, Sierra Grande) | — | 1979-1986 | — |
| Chevrolet | C10 Suburban (Custom Deluxe, Deluxe, Scottsdale, Silverado, Custom) | — | 1975-1986 | — |
| Chevrolet | C20 (Cheyenne, Custom, Custom Deluxe, Deluxe, Scottsdale, Silverado) | — | 1975-1986 | — |
| Chevrolet | C10 (Cheyenne, Custom, Custom Deluxe, Deluxe, Scottsdale, Silverado, Big Ten) | — | 1975-1986 | — |
| Chevrolet | K10 (Cheyenne, Custom, Custom Deluxe, Deluxe, Scottsdale, Silverado) | — | 1975-1986 | — |
| GMC | Jimmy (High Sierra, Sierra Classic, Sierra Grande, Street Coupe, Base) | — | 1975-1987 | — |
| Chevrolet | C20 Suburban (Custom, Custom Deluxe, Deluxe, Scottsdale, Silverado) | — | 1975-1986 | — |
| GMC | C15 (Heavy Half, High Sierra, Indy Hauler, Sierra Classic, Sierra Grande, Street Coupe, Base) | — | 1975-1978 | — |
| Chevrolet | G20 (Nomad, Sportvan, Beauville, Bonaventure, Chevy Van) | — | 1975-1994 | — |
| Chevrolet | G30 (Beauville, Bonaventure, Chevy Van, Hi-Cube, Sportvan) | — | 1978-1994 | — |
| GMC | K2500 Suburban (Base, High Sierra, Sierra Classic, Sierra Grande) | — | 1979-1981 | — |
| GMC | R1500 (Base, High Sierra, Sierra Classic) | — | 1987 | — |
| GMC | C1500 Suburban (Base, High Sierra, Sierra Classic, Sierra Grande) | — | 1979-1986 | — |
| GMC | G15 (Rally, Rally STX, Vandura) | — | 1976-1978 | — |
| GMC | G1500 (Rally, Rally Custom, Rally STX, Vandura) | — | 1979-1994 | — |
| GMC | K1500 Suburban (Base, High Sierra, Sierra Classic, Sierra Grande) | — | 1979-1986 | — |
| GMC | G2500 (Rally STX, Vandura, Rally, Rally Custom) | — | 1979-1994 | — |
| Chevrolet | R10 (Custom Deluxe, Scottsdale, Silverado) | — | 1987 | — |
| Chevrolet | R10 Suburban (Custom Deluxe, Scottsdale, Silverado) | — | 1987 | — |
| Chevrolet | G10 (Bonaventure, Chevy Van, Sportvan, Base, Beauville) | — | 1975-1994 | — |
| GMC | G25 (Rally, Rally STX, Vandura) | — | 1975-1978 | — |
| Chevrolet | Astro (Base, CL, CS, LT) | — | 1985-1991 | — |
| Chevrolet | Blazer (Custom Deluxe, Silverado) | — | 1987 | — |
| GMC | Safari (SLE, SLT, SLX, Base, SL) | — | 1985-1991 | — |
| GMC | V1500 (Base, High Sierra, Sierra Classic) | — | 1987 | — |
| Chevrolet | R20 (Custom Deluxe, Scottsdale, Silverado) | — | 1987 | — |
| Chevrolet | V10 (Custom Deluxe, Scottsdale, Silverado) | — | 1987 | — |
| GMC | R1500 Suburban (Base, High Sierra, Sierra Classic) | — | 1987 | — |
| GMC | R2500 (Base, High Sierra, Sierra Classic) | — | 1987 | — |
| Year | Make | Model |
|---|---|---|
| Submodel: Base | CL | CS |
| Model: Blazer | R10 | R10 Suburban R20 V10 |
| Model: C10 | C10 Suburban | C20 C20 Suburban K10 K10 Suburban K20 K20 Suburban |
| Submodel: Beauville | Chevy Van | Sportvan |
| Submodel: Beauville | Chevy Van | Sportvan |
| Submodel: Custom Deluxe | Scottsdale | Silverado |
| Submodel: Custom Deluxe | Scottsdale | Silverado |
| Submodel: Custom Deluxe | Scottsdale | Silverado |
| Submodel: Custom Deluxe | Scottsdale | Silverado |
| Model: C15 | C15 Suburban | C25 G25 K15 K15 Suburban K25 |
| Submodel: Base | High Sierra | Sierra Classic Sierra Grande |
| Submodel: Base | High Sierra | Sierra Classic Sierra Grande |
| Model: C1500 | C1500 Suburban | C2500 C2500 Suburban K1500 K1500 Suburban K2500 |
| Submodel: Base | High Sierra | Sierra Classic |
| Submodel: Base | High Sierra | Sierra Classic |
| Submodel: Base | High Sierra | Sierra Classic Sierra Grande |
| Submodel: Base | High Sierra | Sierra Classic |
| Submodel: Base | High Sierra | Sierra Classic |
| Submodel: Rally | Rally STX | Vandura |
| Model: G1500 | G2500 | G3500 |
| Submodel: Rally | Rally STX | Vandura |
| Submodel: Rally | Rally STX | Vandura |
| Submodel: Rally | Rally STX | Vandura |
| Submodel: Magnavan | Rally | Rally Camper Special Rally STX Vandura Vandura Special |
| Submodel: Magnavan | Rally | Rally Camper Special Rally STX |
| Submodel: Base | High Sierra | Sierra Classic Sierra Grande |
| Submodel: Base | High Sierra | Sierra Classic Sierra Grande |
| Submodel: Base | High Sierra | Sierra Classic |
| Submodel: Base | High Sierra | Sierra Classic |
| Submodel: Base | High Sierra | Sierra Classic Sierra Grande |
| Submodel: Base | High Sierra | Sierra Classic |
| Submodel: Base | High Sierra | Sierra Classic Sierra Grande |
| Model: R1500 | R1500 Suburban | R2500 V1500 |
| Submodel: Base | High Sierra | Sierra Classic |
| Submodel: Base | High Sierra | Sierra Classic |
| Submodel: Base | High Sierra | Sierra Classic |
| Submodel: Base | High Sierra | Sierra Classic |
Not sure? Text us your VIN and we’ll confirm.
Shipping: Orders ship via UPS, FedEx or USPS, from our facility near Los Angeles or directly from the manufacturer. Rates for many items are weight-based and shown at checkout. If you need it by a certain date, text us before you order.
Returns: Unused items in brand-new condition and original packaging can be returned within 30 days of the invoice date, with a 25% restocking fee unless otherwise specified. In some cases we can offer a lower fee with the balance as store credit. Shipping charges aren't refundable in either direction unless approved by AutoTalent.
Not returnable: special-order or custom items, and anything that has been installed, modified or altered.
Cancellations: free if the item is out of stock or we miss the ETA you agreed to. Other cancellations carry a 5% processing fee to cover card fees we can't recover. Special-order items can't be cancelled.
Damaged in transit? Report it to the carrier and to us within 48 hours, keep all packaging, and don't send anything back without our written approval.
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