HomeBelts and Cooling > Hardware, Fasteners and FittingsDorman 902-5403 Engine Coolant Reservoir Cap
Part #: 902-5403

Dorman 902-5403 Engine Coolant Reservoir Cap

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Overview of Dorman Engine Coolant Reservoir Cap 902-5403

The Dorman 902-5403 engine coolant reservoir cap is designed to maintain proper coolant containment and system integrity. Made from durable black plastic, this twist-on cap provides a secure seal for your vehicle's coolant tank, helping to prevent leaks and contamination.

  • Material: Durable black plastic construction
  • Diameter: 49 mm for precise fitment
  • Attachment Type: Twist-on design for easy installation
  • Type: Twist cap without pressure release lever
  • Non-vented and non-pressurized design
  • Dimensions: 0.7 inches length, 3 inches width
  • Package includes one coolant tank cap

Detailed Product Description

The Dorman 902-5403 engine coolant reservoir cap is engineered to replace worn or damaged caps on compatible vehicles, ensuring a tight seal on the coolant reservoir. Its black plastic construction offers resistance to heat and corrosion commonly found in engine compartments. The 49 mm diameter and twist-on attachment type allow for straightforward installation and reliable retention. This cap does not include a pressure release lever and is non-vented, making it suitable for coolant systems designed without pressurization features.

Compatible Vehicles and Common Applications

This engine coolant reservoir cap is compatible with various makes and models that require a 49 mm diameter, twist-on style cap without venting or pressure release. It is commonly used in vehicles where the coolant reservoir cap functions solely as a seal without pressure regulation.

  • Prevents coolant leaks and contamination
  • Replaces cracked or broken reservoir caps
  • Maintains proper coolant system sealing
  • Helps avoid engine overheating due to coolant loss
  • Ensures coolant system integrity during normal operation

Installation Notes and Tips

Installation of the Dorman 902-5403 engine coolant reservoir cap is straightforward due to its twist-on design. Ensure the old cap is fully removed and the reservoir neck is clean before installing the new cap. Align the cap properly and twist until securely seated to prevent leaks. No additional tools are typically required for installation.

Quality Assurance and Warranty

Dorman parts are manufactured to meet or exceed OEM standards for fit, form, and function. The 902-5403 engine coolant reservoir cap undergoes quality checks to ensure durability and reliability. Please refer to Dorman's warranty policy for specific coverage details.

BrandDorman
Part Number902-5403
MaterialPlastic
Diameter49
ColorBlack
Attachment TypeTwist on
TypeTwist
Pressure Release LeverNo
VentedNo
PressurizedNo
Length (In)0.7 in
Package Contents1 coolant tank cap
Width (in)3 in

This part fits 0 vehicles. Search below:

YearMakeModelPositionNotes

* 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:

572.2008BHTW368001RC0050

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