HomeBelts and Cooling > Hardware, Fasteners and FittingsDorman 54207 Engine Coolant Reservoir Cap
Part #: 54207

Dorman 54207 Engine Coolant Reservoir Cap

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⚙️ 26 vehicles fit this part
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OE Direct Replacement — Bolt-on fit, no modifications needed
🚗Fitment: Jeep, Cherokee, Comanche, and Wagoneer
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Reliable Engine Coolant Reservoir Cap for Jeep Vehicles

The Dorman 54207 engine coolant reservoir cap is designed to maintain proper pressure and prevent coolant loss in your Jeep Cherokee, Comanche, Grand Cherokee, Wagoneer, and Wrangler. This black, vented, and pressurized cap ensures your cooling system operates efficiently under varying conditions.

  • Durable plastic construction for corrosion resistance
  • 31.5 mm diameter with a 1.25-inch length and 2.125-inch width
  • Threaded attachment type with a twist design for secure fitment
  • Pressurized and vented to maintain optimal cooling system pressure
  • Maximum pressure rating of 16 psi for reliable performance

Product Details and Specifications

The Dorman 54207 engine coolant reservoir cap is engineered with a threaded, twist-on design that fits securely on the coolant reservoir. Its vented and pressurized features help regulate the pressure within the cooling system, preventing overheating and coolant loss. The cap’s black plastic material resists corrosion and wear, ensuring long-lasting durability. Measuring 31.5 mm in diameter, with a length of 1.25 inches and width of 2.125 inches, this cap is specifically designed for compatibility with select Jeep models.

Compatible Jeep Models and Applications

This engine coolant reservoir cap is compatible with the following Jeep vehicles:

  • Jeep Cherokee
  • Jeep Comanche
  • Jeep Grand Cherokee
  • Jeep Wagoneer
  • Jeep Wrangler

Using the correct coolant reservoir cap like the Dorman 54207 helps maintain the integrity of your Jeep’s cooling system and prevents common issues related to pressure loss.

Common Issues Addressed by This Coolant Cap

  • Prevents coolant leaks caused by faulty or worn caps
  • Maintains proper pressure to avoid engine overheating
  • Reduces risk of air entering the cooling system
  • Helps prevent coolant contamination through venting
  • Ensures secure attachment to avoid accidental cap removal

Installation Notes and Tips

Installation of the Dorman 54207 engine coolant reservoir cap is straightforward. Ensure the old cap is fully removed and inspect the reservoir neck for damage or debris before installing the new cap. Align the threaded cap properly and twist until securely tightened. Avoid over-tightening to prevent damage to the threads. Regularly inspect the cap for signs of wear or cracking to maintain optimal cooling system performance.

Quality Assurance and Warranty

Dorman parts are manufactured to meet or exceed OEM standards, providing reliable fit and function. The 54207 engine coolant reservoir cap undergoes quality checks to ensure durability and performance. While specific warranty details may vary, Dorman typically offers limited warranties covering defects in material and workmanship. Refer to Dorman’s official documentation for exact warranty terms.

BrandDorman
Part Number54207
Attachment TypeThreaded
ColorBlack
Diameter31.5
Length (In)1.25 in
MaterialPlastic
Maximum Pressure Rating16
Package Contents1 Coolant Cap
Pressure Release LeverNo
PressurizedYes
TypeTwist
VentedYes
Width (in)2.125 in

This part fits 26 vehicles. Search below:

YearMakeModelLitersCylindersPositionNotes
1996JeepCherokee4.0LL6N/APackaging Type: Box
1996JeepGrand Cherokee4.0LL6N/APackaging Type: Box
1995JeepCherokee4.0LL6N/APackaging Type: Box
1995JeepWrangler4.0LL6N/APackaging Type: Box
1994JeepCherokee4.0LL6N/APackaging Type: Box
1994JeepWrangler4.0LL6N/APackaging Type: Box
1993JeepCherokee4.0LL6N/APackaging Type: Box
1993JeepWrangler4.0LL6N/APackaging Type: Box
1992JeepCherokee4.0LL6N/APackaging Type: Box
1992JeepComanche4.0LL6N/APackaging Type: Box
1992JeepWrangler4.0LL6N/APackaging Type: Box
1991JeepCherokee4.0LL6N/APackaging Type: Box
1991JeepComanche4.0LL6N/APackaging Type: Box
1991JeepWrangler4.0LL6N/APackaging Type: Box
1990JeepCherokee4.0LL6N/A31.5 mm Diameter; Packaging Type: Box
1990JeepComanche4.0LL6N/A31.5 mm Diameter; Packaging Type: Box
1990JeepWagoneer4.0LL6N/A31.5 mm Diameter; Packaging Type: Box
1989JeepCherokee4.0LL6N/A31.5 mm Diameter; Packaging Type: Box
1989JeepComanche4.0LL6N/A31.5 mm Diameter; Packaging Type: Box
1989JeepWagoneer4.0LL6N/A31.5 mm Diameter; Packaging Type: Box
1988JeepCherokee4.0LL6N/A31.5 mm Diameter; Packaging Type: Box
1988JeepComanche4.0LL6N/A31.5 mm Diameter; Packaging Type: Box
1988JeepWagoneer4.0LL6N/A31.5 mm Diameter; Packaging Type: Box
1987JeepCherokee4.0LL6N/A31.5 mm Diameter; Packaging Type: Box
1987JeepComanche4.0LL6N/A31.5 mm Diameter; Packaging Type: Box
1987JeepWagoneer4.0LL6N/A31.5 mm Diameter; Packaging Type: Box

* 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:

47738496

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