HomeEmission Control > Hardware, Fasteners and FittingsMahle B31873 PCV Valve Grommet
Part #: B31873

Mahle B31873 PCV Valve Grommet

⚙️ 43 vehicles fit this part
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OE Direct Replacement — Bolt-on fit, no modifications needed
🚗Fitment: Chrysler, Dodge, and Jeep, 300, Aspen, Charger, Durango, Magnum, Ram 1500, Ram 2500, Ram 3500, Commander, and Grand Cherokee
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Reliable PCV Valve Grommet for Chrysler, Dodge, and Jeep Vehicles

The Mahle PCV Valve Grommet B31873 is designed to provide a secure and durable seal for the positive crankcase ventilation system in select Chrysler, Dodge, and Jeep models. Crafted from molded rubber, this grommet ensures a tight fit and long-lasting performance in demanding engine environments.

  • Constructed from molded rubber for durability and flexibility
  • Compatible with Chrysler 300, Dodge Charger, Aspen, Magnum, and Durango
  • Fits Jeep Commander, Grand Cherokee, and Ram 1500, 2500, 3500 models
  • Part number B31873 for precise identification and fitment
  • Designed to maintain proper PCV valve sealing and prevent leaks

Durable Molded Rubber Construction for Effective Sealing

This PCV valve grommet is made from molded rubber, a material chosen for its resistance to heat, oil, and engine vibrations. The flexibility of molded rubber allows the grommet to maintain a secure seal around the PCV valve, preventing vacuum leaks and ensuring the proper function of the emission control system. The B31873 part number corresponds to a component engineered to meet OEM specifications for Chrysler, Dodge, and Jeep vehicles, providing reliable service life under typical operating conditions.

Compatible Vehicles and Applications

The Mahle PCV Valve Grommet B31873 is compatible with a range of vehicles, including Chrysler 300 and Aspen, Dodge Charger, Magnum, Durango, and Jeep Commander and Grand Cherokee. It also fits Ram 1500, 2500, and 3500 trucks. This compatibility ensures that the grommet can be used in various engine configurations where the PCV valve requires a secure mounting point.

Common Issues Addressed by the PCV Valve Grommet

  • Prevents vacuum leaks caused by worn or damaged grommets
  • Eliminates oil leaks around the PCV valve mounting area
  • Maintains proper crankcase ventilation to reduce engine emissions
  • Helps avoid rough idling or engine performance issues related to PCV system leaks
  • Reduces the risk of engine oil contamination and sludge buildup

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 proper seal
  • Press the new molded rubber grommet firmly into place to ensure a tight fit
  • Verify that the PCV valve is securely seated within the grommet after installation

Quality Assurance and Warranty Information

Mahle manufactures the B31873 PCV Valve Grommet to meet strict quality standards, ensuring consistent fit and function. While specific warranty details may vary, Mahle products typically come with a limited warranty against defects in materials and workmanship. This grommet is engineered to provide reliable service in emission control systems for Chrysler, Dodge, and Jeep vehicles.

BrandMahle
Part NumberB31873
Grommet MaterialMolded Rubber

This part fits 43 vehicles. Search below:

YearMakeModelLitersCylindersPositionNotes
2008Chrysler3005.7LV8N/AFor optimal performance during installation of Engine Coolant Thermostat Seal, use the included gasket from the set.
2008ChryslerAspen5.7LV8N/AFor optimal performance during installation of Engine Coolant Thermostat Seal, use the included gasket from the set.
2008DodgeCharger5.7LV8N/AFor optimal performance during installation of Engine Coolant Thermostat Seal, use the included gasket from the set.
2008DodgeDurango5.7LV8N/AFor optimal performance during installation of Engine Coolant Thermostat Seal, use the included gasket from the set.
2008DodgeMagnum5.7LV8N/AFor optimal performance during installation of Engine Coolant Thermostat Seal, use the included gasket from the set.
2008DodgeRam 15005.7LV8N/AFor optimal performance during installation of Engine Coolant Thermostat Seal, use the included gasket from the set.
2008DodgeRam 25005.7LV8N/AFor optimal performance during installation of Engine Coolant Thermostat Seal, use the included gasket from the set.
2008DodgeRam 35005.7LV8N/AFor optimal performance during installation of Engine Coolant Thermostat Seal, use the included gasket from the set.
2008JeepCommander5.7LV8N/AFor optimal performance during installation of Engine Coolant Thermostat Seal, use the included gasket from the set.
2008JeepGrand Cherokee5.7LV8N/AFor optimal performance during installation of Engine Coolant Thermostat Seal, use the included gasket from the set.
2007Chrysler3005.7LV8N/AFor optimal performance during installation of Engine Coolant Thermostat Seal, use the included gasket from the set.
2007ChryslerAspen5.7LV8N/AFor optimal performance during installation of Engine Coolant Thermostat Seal, use the included gasket from the set.
2007DodgeCharger5.7LV8N/AFor optimal performance during installation of Engine Coolant Thermostat Seal, use the included gasket from the set.
2007DodgeDurango5.7LV8N/AFor optimal performance during installation of Engine Coolant Thermostat Seal, use the included gasket from the set.
2007DodgeMagnum5.7LV8N/AFor optimal performance during installation of Engine Coolant Thermostat Seal, use the included gasket from the set.
2007DodgeRam 15005.7LV8N/AFor optimal performance during installation of Engine Coolant Thermostat Seal, use the included gasket from the set.
2007DodgeRam 25005.7LV8N/AFor optimal performance during installation of Engine Coolant Thermostat Seal, use the included gasket from the set.
2007DodgeRam 35005.7LV8N/AFor optimal performance during installation of Engine Coolant Thermostat Seal, use the included gasket from the set.
2007JeepCommander5.7LV8N/AFor optimal performance during installation of Engine Coolant Thermostat Seal, use the included gasket from the set.
2007JeepGrand Cherokee5.7LV8N/AFor optimal performance during installation of Engine Coolant Thermostat Seal, use the included gasket from the set.
2006Chrysler3005.7LV8N/AFor optimal performance during installation of Engine Coolant Thermostat Seal, use the included gasket from the set.
2006DodgeCharger5.7LV8N/AFor optimal performance during installation of Engine Coolant Thermostat Seal, use the included gasket from the set.
2006DodgeDurango5.7LV8N/AFor optimal performance during installation of Engine Coolant Thermostat Seal, use the included gasket from the set.
2006DodgeMagnum5.7LV8N/AFor optimal performance during installation of Engine Coolant Thermostat Seal, use the included gasket from the set.
2006DodgeRam 15005.7LV8N/AFor optimal performance during installation of Engine Coolant Thermostat Seal, use the included gasket from the set.
2006DodgeRam 25005.7LV8N/AFor optimal performance during installation of Engine Coolant Thermostat Seal, use the included gasket from the set.
2006DodgeRam 35005.7LV8N/AFor optimal performance during installation of Engine Coolant Thermostat Seal, use the included gasket from the set.
2006JeepCommander5.7LV8N/AFor optimal performance during installation of Engine Coolant Thermostat Seal, use the included gasket from the set.
2006JeepGrand Cherokee5.7LV8N/AFor optimal performance during installation of Engine Coolant Thermostat Seal, use the included gasket from the set.
2005Chrysler3005.7LV8N/AFor optimal performance during installation of Engine Coolant Thermostat Seal, use the included gasket from the set.
2005DodgeDurango5.7LV8N/AFor optimal performance during installation of Engine Coolant Thermostat Seal, use the included gasket from the set.
2005DodgeMagnum5.7LV8N/AFor optimal performance during installation of Engine Coolant Thermostat Seal, use the included gasket from the set.
2005DodgeRam 15005.7LV8N/AFor optimal performance during installation of Engine Coolant Thermostat Seal, use the included gasket from the set.
2005DodgeRam 25005.7LV8N/AFor optimal performance during installation of Engine Coolant Thermostat Seal, use the included gasket from the set.
2005DodgeRam 35005.7LV8N/AFor optimal performance during installation of Engine Coolant Thermostat Seal, use the included gasket from the set.
2005JeepGrand Cherokee5.7LV8N/AFor optimal performance during installation of Engine Coolant Thermostat Seal, use the included gasket from the set.
2004DodgeDurango5.7LV8N/AFor optimal performance during installation of Engine Coolant Thermostat Seal, use the included gasket from the set.
2004DodgeRam 15005.7LV8N/AFor optimal performance during installation of Engine Coolant Thermostat Seal, use the included gasket from the set.
2004DodgeRam 25005.7LV8N/AFor optimal performance during installation of Engine Coolant Thermostat Seal, use the included gasket from the set.
2004DodgeRam 35005.7LV8N/AFor optimal performance during installation of Engine Coolant Thermostat Seal, use the included gasket from the set.
2003DodgeRam 15005.7LV8N/AFor optimal performance during installation of Engine Coolant Thermostat Seal, use the included gasket from the set.
2003DodgeRam 25005.7LV8N/AFor optimal performance during installation of Engine Coolant Thermostat Seal, use the included gasket from the set.
2003DodgeRam 35005.7LV8N/AFor optimal performance during installation of Engine Coolant Thermostat Seal, use the included gasket from the set.

* 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:

5303 2384AB

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