HomeEmission Control > Hardware, Fasteners and FittingsDorman 42317 PCV Valve Grommet
Part #: 42317

Dorman 42317 PCV Valve Grommet

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⚙️ 48 vehicles fit this part
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OE Direct Replacement — Bolt-on fit, no modifications needed
🚗Fitment: Cadillac, Buick, Oldsmobile, Pontiac, and Chevrolet, Allante, Commercial Chassis, DeVille, Eldorado, Fleetwood, Seville, Century, Skylark, Somerset, Calais, Cutlass Ciera, 6000, Fiero, Firebird, Grand Am, Somerset Regal, Celebrity, Citation II, Omega, Phoenix, and Citation
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Reliable Dorman PCV Valve Grommet for Select GM Vehicles

The Dorman 42317 PCV valve grommet is designed to provide a secure and durable seal for the positive crankcase ventilation system in various Buick, Cadillac, Chevrolet, Oldsmobile, and Pontiac models. Made from quality rubber, this grommet ensures proper fit and function to maintain emission control system integrity.

  • Constructed from durable rubber material for long-lasting performance
  • Inside diameter of 0.98 inches and outside diameter of 1.86 inches for precise fit
  • Thickness of 0.35 inches to provide a secure seal
  • Push-on attachment method for easy installation
  • Compatible with multiple GM models including Buick Century, Cadillac DeVille, Chevrolet Firebird, and Pontiac Grand Am

Detailed Product Description

The Dorman 42317 PCV valve grommet is engineered to fit a range of GM vehicles such as the Buick Century, Cadillac Eldorado, Chevrolet Fiero, and Pontiac Skylark. Its rubber construction offers flexibility and resistance to heat and oil exposure, which are common in engine compartments. The grommet’s dimensions—0.98 inches inside diameter, 1.86 inches outside diameter, and 0.35 inches thickness—ensure a tight seal around the PCV valve, preventing vacuum leaks and maintaining proper crankcase ventilation. The push-on attachment method simplifies installation, reducing the need for additional tools or fasteners.

Common Applications and Issues Addressed

  • Prevents vacuum leaks in the PCV system
  • Maintains proper crankcase pressure and ventilation
  • Reduces engine oil leaks around the PCV valve
  • Helps control harmful emissions by ensuring system integrity
  • Replaces worn or cracked grommets that cause engine performance issues

Installation Notes and Tips

  • Ensure the engine is cool before beginning installation
  • Remove the old grommet carefully to avoid damaging the PCV valve or surrounding components
  • Clean the mounting area to remove oil and debris for a secure fit
  • Push the Dorman 42317 grommet firmly onto the PCV valve until fully seated
  • Verify the grommet is properly aligned and sealed to prevent leaks

Quality Assurance and Warranty

Dorman parts are manufactured to meet or exceed OEM specifications, ensuring reliable performance and durability. The 42317 PCV valve grommet undergoes rigorous quality control to provide consistent fit and function. While specific warranty details may vary, Dorman typically offers limited warranties covering defects in material and workmanship.

BrandDorman
Part Number42317
Attachment MethodPush On
Inside Diameter0.98
MaterialRubber
Outside Diameter1.86
Package ContentsGrommet
Thickness0.35

This part fits 48 vehicles. Search below:

YearMakeModelLitersCylindersPositionNotes
1987CadillacAllante4.1LV8N/APCV Valve Grommet fits oil separator to air cleaner
1987CadillacCommercial Chassis4.1LV8N/APCV Valve Grommet fits oil separator to air cleaner
1987CadillacDeVille4.1LV8N/APCV Valve Grommet fits oil separator to air cleaner
1987CadillacEldorado4.1LV8N/APCV Valve Grommet fits oil separator to air cleaner
1987CadillacFleetwood4.1LV8N/APCV Valve Grommet fits oil separator to air cleaner
1987CadillacSeville4.1LV8N/APCV Valve Grommet fits oil separator to air cleaner
1986BuickCentury2.5LL4N/APCV Valve Grommet fits oil separator to air cleaner
1986BuickSkylark2.5LL4N/APCV Valve Grommet fits oil separator to air cleaner
1986CadillacCommercial Chassis4.1LV8N/APCV Valve Grommet fits oil separator to air cleaner
1986CadillacDeVille4.1LV8N/APCV Valve Grommet fits oil separator to air cleaner
1986CadillacEldorado4.1LV8N/APCV Valve Grommet fits oil separator to air cleaner
1986CadillacFleetwood4.1LV8N/APCV Valve Grommet fits oil separator to air cleaner
1986CadillacSeville4.1LV8N/APCV Valve Grommet fits oil separator to air cleaner
1986OldsmobileCalais2.5LL4N/APCV Valve Grommet fits oil separator to air cleaner
1986OldsmobileCutlass Ciera2.5LL4N/APCV Valve Grommet fits oil separator to air cleaner
1986Pontiac60002.5LL4N/APCV Valve Grommet fits oil separator to air cleaner
1986PontiacFiero2.5LL4N/APCV Valve Grommet fits oil separator to air cleaner
1986PontiacFirebird2.5LL4N/APCV Valve Grommet fits oil separator to air cleaner
1986PontiacGrand Am2.5LL4N/APCV Valve Grommet fits oil separator to air cleaner
1985BuickCentury2.5LL4N/APCV Valve Grommet fits oil separator to air cleaner
1985BuickSkylark2.5LL4N/APCV Valve Grommet fits oil separator to air cleaner
1985ChevroletCelebrity2.5LL4N/APCV Valve Grommet fits oil separator to air cleaner
1985ChevroletCitation II2.5LL4N/APCV Valve Grommet fits oil separator to air cleaner
1985OldsmobileCalais2.5LL4N/APCV Valve Grommet fits oil separator to air cleaner
1985OldsmobileCutlass Ciera2.5LL4N/APCV Valve Grommet fits oil separator to air cleaner
1985Pontiac60002.5LL4N/APCV Valve Grommet fits oil separator to air cleaner
1985PontiacFiero2.5LL4N/APCV Valve Grommet fits oil separator to air cleaner
1985PontiacFirebird2.5LL4N/APCV Valve Grommet fits oil separator to air cleaner
1985PontiacGrand Am2.5LL4N/APCV Valve Grommet fits oil separator to air cleaner
1984BuickCentury2.5LL4N/APCV Valve Grommet fits oil separator to air cleaner
1984BuickSkylark2.5LL4N/APCV Valve Grommet fits oil separator to air cleaner
1984ChevroletCelebrity2.5LL4N/APCV Valve Grommet fits oil separator to air cleaner
1984ChevroletCitation II2.5LL4N/APCV Valve Grommet fits oil separator to air cleaner
1984OldsmobileCutlass Ciera2.5LL4N/APCV Valve Grommet fits oil separator to air cleaner
1984OldsmobileOmega2.5LL4N/APCV Valve Grommet fits oil separator to air cleaner
1984Pontiac60002.5LL4N/APCV Valve Grommet fits oil separator to air cleaner
1984PontiacFiero2.5LL4N/APCV Valve Grommet fits oil separator to air cleaner
1984PontiacFirebird2.5LL4N/APCV Valve Grommet fits oil separator to air cleaner
1984PontiacPhoenix2.5LL4N/APCV Valve Grommet fits oil separator to air cleaner
1983BuickCentury2.5LL4N/APCV Valve Grommet fits oil separator to air cleaner
1983BuickSkylark2.5LL4N/APCV Valve Grommet fits oil separator to air cleaner
1983ChevroletCelebrity2.5LL4N/APCV Valve Grommet fits oil separator to air cleaner
1983ChevroletCitation2.5LL4N/APCV Valve Grommet fits oil separator to air cleaner
1983OldsmobileCutlass Ciera2.5LL4N/APCV Valve Grommet fits oil separator to air cleaner
1983OldsmobileOmega2.5LL4N/APCV Valve Grommet fits oil separator to air cleaner
1983Pontiac60002.5LL4N/APCV Valve Grommet fits oil separator to air cleaner
1983PontiacFirebird2.5LL4N/APCV Valve Grommet fits oil separator to air cleaner
1983PontiacPhoenix2.5LL4N/APCV Valve Grommet fits oil separator to air cleaner

* Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.

This part directly replaces or is cross-referenced with the following part numbers:

25043009423173

Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.