Dorman - HELP PCV Valve Grommet
Fits Buick, Chevrolet, GMC & more — 50 vehicle applications
PCV VALVE GROMMET
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Review shipping eligibility for this region
- Canadian Owned

Dorman - HELP 42056 Vehicle Fitment
Fits 50 vehiclesThis Dorman - HELP PCV Valve Grommet fits Buick, Chevrolet, GMC, Oldsmobile and 2 more makes vehicles.
Fits 1978-1990 Buick Electra; 1975-1993 Buick LeSabre; 1989 Buick Reatta; 1973-1990 Buick Regal; 1971-1992 Buick Riviera; 1968-1987 Buick Skylark; 1987 Cadillac Allante; 1989 Chevrolet Astro. Plus 42 more models listed below.
1992 Chevrolet C35
1991-1993 Chevrolet C2500
1990-1991 Chevrolet S10 Blazer
1990 Chevrolet C1500
1990 Chevrolet K2500
1990 Chevrolet R2500 Suburban
1989 Chevrolet V2500 Suburban
1989 Chevrolet Astro
1988-1991 Chevrolet K3500
1988 Chevrolet V10 Suburban
1988 Chevrolet P20
1988 Chevrolet Suburban
1987 Chevrolet Blazer
1987 Chevrolet V30
1981-1991 Chevrolet G20
1977-1990 Chevrolet G30
1976-1987 Chevrolet C20
1972-1990 Chevrolet Caprice
1970-1991 Chevrolet Corvette
1970-1990 Chevrolet Camaro
Dorman - HELP 42056 Specifications
- Material
- Rubber
- Material
- Caucho
- Material
- Élastomère
- Inside Diameter
- 0.418
- Thickness
- 0.5
- Outside Diameter
- 1.299
Dorman - HELP 42056 Interchange Numbers
This part replaces and is compatible with the following part numbers
| Type | Brand | Part Number |
|---|---|---|
| Aftermarket | Airtex | 2P1020 |
| Aftermarket | General Motors | 1381487 |
| Aftermarket | Needa Parts | 420563 |
| Aftermarket | Standard Motor Products | GV16 |
Dorman - HELP 42056 Product Description
This PCV valve grommet is designed to match the fit and function of the original grommet on specified vehicles, and is engineered for durability and reliable performance.
Key Features
- Direct replacement - this PCV valve grommet is designed to match the fit and function of the original grommet on specified vehicles
- Restores functionality - this grommet is made to fit and fully restore part functionality after the original grommet fails
- Durable construction - this part is made from quality materials to ensure reliable performance and long service life
- Trustworthy quality - backed by team of product experts in the United States and more than a century of automotive experience
About Dorman - HELP
Shop Dorman - HELP PCV Valve Grommet at Autrex with vehicle fitment details, current pricing, and checkout options for the Dorman - HELP 42056. Eligible orders over $99 may qualify for free shipping, with some exceptions.
Seller reviews
What customers say about buying from Autrex — service, shipping and support. These are reviews of the store, not of this specific part.
- July 2026
Couldn't locate the parts for 2013 Civic Si Sedan. Front struts are an Anomaly found them at Capital autoparts. Great service and great parts. Shipping by CanPar sucked however
- July 2026
Great customer service. I placed an order for wheels and tires and it was an easy transaction. Make sure you read the expected lead times for delivery however. I misread that part, but the order did arrive in the correct timeframe stated. The Hostile rims and Hercules tires look great. Thank you
- July 2026
Awesome
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Frequently Asked Questions — Dorman - HELP 42056
What vehicles does the Dorman - HELP 42056 fit?
The Dorman - HELP 42056 fits 50 vehicle applications including 1975-1993 Buick LeSabre, 1991-1993 Chevrolet C2500, 1991-1993 GMC Sonoma, 1971-1992 Buick Riviera, 1992 Chevrolet C35 and 45 more. Check the full fitment list above to confirm your vehicle.
What parts does the Dorman - HELP 42056 replace?
The Dorman - HELP 42056 is a direct replacement for Airtex 2P1020, General Motors 1381487, Needa Parts 420563, Standard Motor Products GV16. See the full interchange list for all compatible replacements.
How do I confirm the Dorman - HELP 42056 fits my vehicle?
Select your year, make, model and engine in the vehicle selector on this page to see a fit or does-not-fit result for the Dorman - HELP 42056. If your vehicle has options that change the part (for example brake package or axle), the result lists the questions to check. A parts specialist can also confirm fitment at 1-866-461-2787.
What are the shipping options for the Dorman - HELP 42056?
Shipping options for the Dorman - HELP 42056 are shown during checkout and may vary by item, address, and availability. Eligible orders over $99 may qualify for free shipping, with some exceptions. Call 1-866-461-2787 if you need help confirming shipping or pickup before ordering.
How much does the Dorman - HELP 42056 cost?
The Dorman - HELP 42056 is currently listed at $31.00 CAD at Autrex. Final price, shipping, taxes, and availability are confirmed during checkout. Call 1-866-461-2787 if you need help before ordering.
Is the Dorman - HELP PCV Valve Grommet a direct fit replacement?
Fit depends on the vehicle and its configuration. Select your vehicle and review the fitment result for the Dorman - HELP PCV Valve Grommet before ordering.