NOS GM Valve Cover Grommet – Part #3894337
Description:
Seal your Bowtie valve cover with this NOS GM oil hole grommet, part number 3894337, engineered for Chevrolet small and big block V8 engines. This high-temp rubber grommet fits oil filler holes and supports PCV or breather tubes with OEM precision.
✅ Genuine GM Packaging – Includes “Not Returnable If Opened” seal ✅ Restoration-Grade – Ideal for dress-up kits and concours builds ✅ Universal Fit – Works with Bowtie valve covers and GM crate engines
📊 GM Valve Cover Grommet Specification Chart — Part #3894337
| Attribute | Value |
|---|---|
| GM Part Number | 3894337 |
| Description | Grommet, Valve Cover Oil Hole |
| Function | Seals oil filler hole in valve cover; supports PCV or breather tube |
| Material | High-temp rubber |
| Dimensions | 5.2" × 3.4" × 1.5" |
| Weight | 0.70 lbs |
| Condition | NOS (New Old Stock) |
| Packaging | GM-labeled bag with “Not Returnable If Opened” warning |
| Warranty | 12-month GM factory warranty |
🚗 Confirmed Fitment Applications
This grommet fits GM V8 engines equipped with Bowtie valve covers and similar aftermarket setups:
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Chevrolet Small Block V8 (283, 305, 327, 350, 400)
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Chevrolet Big Block V8 (396, 427, 454)
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GM crate engines with Bowtie dress-up kits
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Compatible with GM Performance valve covers and PCV/breather setups
Always confirm fitment using valve cover part number or engine specs.
