Dorman - HELP PCV Valve Grommet
Fits Chevrolet, GMC, Isuzu & more — 50 vehicle applications
PCV Grommet
Fast, secure checkout
Review shipping eligibility for this region
- Canadian Owned

Dorman - HELP 42320 Vehicle Fitment
Fits 50 vehiclesThis Dorman - HELP PCV Valve Grommet fits Chevrolet, GMC, Isuzu, Workhorse and 2 more makes vehicles.
Fits 2000 Cadillac Escalade; 1996-2000 Chevrolet C2500; 1996-2000 Chevrolet C3500; 1996-2002 Chevrolet Express 1500; 1996-2002 Chevrolet Express 2500; 1996-2002 Chevrolet Express 3500; 1996-2000 Chevrolet K2500; 1996-2000 Chevrolet K3500. Plus 25 more models listed below.
2003 GMC W3500 Forward
2003 GMC W4500 Forward
1998-2002 GMC W4500 Forward
1997-2002 GMC Savana 3500
1997-2002 GMC Savana 3500
1997-2000 GMC K2500
1997-2000 GMC C3500
1996-2002 GMC Savana 1500
1996-2002 GMC Savana 2500
1996-2002 GMC W3500 Forward
1996-2002 GMC Savana 2500
1996-2001 GMC Savana 1500
1996-2000 GMC C2500
1996-2000 GMC K3500
1996-2000 GMC C3500
1996-2000 GMC C2500
1996-2000 GMC K2500
1996-2000 GMC K3500
1996-2000 GMC Yukon
Dorman - HELP 42320 Specifications
- Material
- Rubber
- Material
- Caucho
- Material
- Élastomère
- Inside Diameter
- 0.749
- Thickness
- 0.962
- Outside Diameter
- 1.156
Dorman - HELP 42320 Interchange Numbers
This part replaces and is compatible with the following part numbers
| Type | Brand | Part Number |
|---|---|---|
| Aftermarket | General Motors | 10088126 |
| Aftermarket | Isuzu | 8100881260 |
| Aftermarket | Standard Motor Products | GV17 |
Dorman - HELP 42320 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 42320. 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 42320
What vehicles does the Dorman - HELP 42320 fit?
The Dorman - HELP 42320 fits 50 vehicle applications including 2003 Chevrolet W4500 Tiltmaster, 2003 Chevrolet W3500 Tiltmaster, 2003 GMC W3500 Forward, 2003 GMC W4500 Forward, 1996-2003 Isuzu NPR and 45 more. Check the full fitment list above to confirm your vehicle.
What parts does the Dorman - HELP 42320 replace?
The Dorman - HELP 42320 is a direct replacement for General Motors 10088126, Isuzu 8100881260, Standard Motor Products GV17. See the full interchange list for all compatible replacements.
How do I confirm the Dorman - HELP 42320 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 42320. 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 42320?
Shipping options for the Dorman - HELP 42320 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 42320 cost?
The Dorman - HELP 42320 is currently listed at $11.00 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.