Dorman 54235 Engine Coolant Reservoir Cap

Brand Dorman 54235
Attachment Type Snap On
Color White
Diameter 38
Length (In) 1.5 in
Material Plastic
Package Contents 1 Coolant Cap
Pressure Release Lever No
Pressurized No
Type Flip Top
Vented No
Width (in) 1.5 in
Fits Mazda · 4 vehicles

Direct replacement cap. Precisely engineered for seamless, effective replacement of the original cap.

Snap-on fit. Flip-top design makes installation and removal quick and simple.

Plastic construction. Lightweight white cap with a clean, durable finish.

Cross-references E5D315245A for the same application. See all 1.

$27.20Free shipping
In stock · usually ships same day before 1pm CST
Step 1 — Confirm fitment
Free return shipping if it doesn't fit when you check fitment here first.
Select your vehicle to confirm fitment
Verify this part fits before purchasing — free returns if it doesn't
Step 2 — Quantity
Order total $27.20
Free shipping to the continental U.S.
Free returns within 60 days if it doesn't fit when fitment is verified.

Engine Coolant Reservoir Cap for Mazda 323

This Dorman engine coolant reservoir cap is a direct replacement for a cracked or missing original cap. Built with a 38 mm diameter, white plastic body, and snap-on flip-top design, it restores a secure closure for the coolant reservoir on select Mazda 323 models.

  • Brand: Dorman
  • Part number: 54235
  • Engine coolant reservoir cap with flip-top design
  • 38 mm diameter plastic construction
  • White finish with snap-on attachment type
  • Non-pressurized, non-vented design
  • Direct replacement for the original reservoir cap

Fitment Details

Compatible with 1986-1989 Mazda 323, N/A. This fitment covers the 1986, 1987, 1988, and 1989 Mazda 323 application listed for this cap. Part number 54235 is also referenced under OE cross-reference E5D315245A for the same application.

Product Overview

Dorman 54235 is engineered as a straightforward replacement for the original engine coolant reservoir cap when the factory part is cracked, lost, or no longer sealing properly. The 38 mm snap-on format and flip-top style make it a practical match for the reservoir opening on the listed Mazda 323 vehicles, while the plastic construction and non-pressurized, non-vented layout reflect the original cap style.

What It Helps Address

  • Missing or broken coolant reservoir cap
  • Damaged flip-top cap that no longer closes securely
  • Reservoir opening left exposed to contamination
  • Improper cap fit on the specified Mazda 323 application
  • Replacement needs for a direct-fit coolant reservoir cap

Installation Notes

Confirm the reservoir opening diameter before installation and match the cap style to the original equipment design. This cap uses a snap-on attachment and does not include a pressure release lever. Verify that the reservoir neck and sealing surfaces are clean before installing the cap on the Mazda 323.

Quality Assurance

Dorman manufactures replacement hardware and cooling-system components to match original part form and function where specified. Part number 54235 is built as a direct replacement coolant reservoir cap for the listed application.

This part fits 4 vehicles
Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.
YearMakeModelPositionNotes
1989Mazda323N/APackaging Type: Bag
1988Mazda323N/APackaging Type: Bag
1987Mazda323N/APackaging Type: Bag
1986Mazda323N/APackaging Type: Bag
Directly replaces or cross-references 1 part number
Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.
E5D315245A