Dorman 54228 Engine Coolant Reservoir Cap

Engine Coolant Reservoir Cap for Honda and Acura

Dorman 54228 is a direct replacement engine coolant reservoir cap for select Honda and Acura applications. It restores a secure, factory-style closure for the coolant reservoir on vehicles such as the Honda Civic, Honda CR-V, and Acura MDX.

Key Features

• Direct replacement coolant reservoir cap for OE-style fit and function
• Black plastic construction with a 32 mm diameter
• Snap-on, flip-top design for straightforward reservoir access
• Non-pressurized, non-vented design
• Compact 1.5 in. length and 1.5 in. width
• Cross-reference: Honda 19102RNAA00

Detailed Description

This Dorman engine coolant reservoir cap is engineered to replace a cracked, missing, or worn original cap without changing the reservoir setup. The black plastic body and snap-on attachment are built to match the original style used on many Honda and Acura cooling systems. If you need a replacement coolant reservoir cap for a 2006-2015 Honda Civic, 2007-2019 Honda CR-V, or 2007-2013 Acura MDX, Dorman 54228 provides a direct-fit solution. The part number 54228 is also a useful reference when searching for an OE-style coolant reservoir cap for Honda and Acura vehicles.

What It Helps Fix

• Broken or cracked coolant reservoir cap
• Lost cap that leaves the reservoir uncovered
• Loose closure at the coolant reservoir opening
• Incorrect cap fitment after prior replacement
• Restoring a clean, sealed appearance at the coolant tank

Installation Notes and Tips

Verify reservoir opening diameter and cap style before installation. This cap uses a snap-on, flip-top design and does not include a pressure release lever. Confirm the original application matches the listed fitment before installing on Honda Accord, Honda Clarity, Honda Fit, Honda Insight, Honda CR-Z, Honda Civic, Honda CR-V, or Acura ILX and Acura MDX models.

Quality Assurance

Dorman manufactures direct replacement parts to match original equipment form and function. Part number 54228 is built for the listed Honda and Acura applications and follows the specified non-pressurized, non-vented design.