Dorman 54214 Engine Coolant Reservoir Cap

Engine Coolant Reservoir Cap Replacement

Dorman 54214 is a direct replacement engine coolant reservoir cap for vehicles that need a cracked, missing, or worn cap restored to proper function. This black plastic, vented flip-top cap uses a snap-on attachment and is sized at 63.5 mm for a secure fit on the specified reservoir application.

Fits 2001-2012 Ford Escape and 2005-2011 Mercury Mariner applications noted for the washer fluid reservoir cap on automatic transmission vehicles. If you are replacing a damaged Ford Escape coolant reservoir cap or sourcing a Dorman 54214 replacement for a Mercury Mariner, this part provides the correct style and dimensions for the listed fitment.

• Direct replacement engine coolant reservoir cap
• Black plastic construction
• 63.5 mm diameter for the specified application
• Snap-on attachment with flip-top design
• Vented, non-pressurized cap
• Fits the listed Ford Escape and Mercury Mariner applications

Fitment and Application Details

This Dorman 54214 cap is built for the listed reservoir application and cross-references Ford YL8Z8100AA for the same application. It is a practical choice when the original cap is cracked, lost, or no longer sealing or venting as intended. The part number 54214 is commonly searched by buyers looking for a Ford Escape coolant reservoir cap or Mercury Mariner reservoir cap replacement.

• Fits 2001-2012 Ford Escape, N/A; fits washer fluid reservoir cap on automatic transmission vehicles.
• Fits 2005-2011 Mercury Mariner, N/A; fits washer fluid reservoir cap on automatic transmission vehicles.

What This Cap Helps Address

• Missing or broken reservoir cap
• Damaged snap-on retention at the reservoir opening
• Cap fitment issues caused by wear or cracking
• Loss of proper venting at the reservoir
• Replacement needs for the specified Ford Escape and Mercury Mariner application

Installation Notes and Tips

Confirm the reservoir opening diameter and cap style before installation. This cap uses a snap-on, flip-top design and is not pressurized, so it should be matched only to the listed application. Verify vehicle year, make, model, and transmission configuration before ordering Dorman 54214.

Quality Assurance

Dorman manufactures direct replacement parts engineered to match the original component’s fit and function for the specified application. This part number 54214 is intended to restore the reservoir cap to the correct configuration for the listed vehicles.