Auto Parts


AutoZone Rewards℠

Join Today and Earn a $20 Reward When You Make 5 Purchases of $20 or More!

Tell Us More About Your Mercury Mountaineer. View all models

AutoZone carries hundreds of thousands of parts and accessories.

Select your Year, Make, Model and Engine to find those that fit your vehicle.

The adventurer in you doesn't need anything more than your Mercury Mountaineer. With durability, power and space to boot, your SUV provides for every need. It's only fair that you return the favor, especially when a faulty radiator cap endangers your cooling system. Check out AutoZone's premium Mercury Mountaineer radiator cap and preventing fluid leak, overheating and radiator rupture.

Show of 6  Results
  •  | Page 1 of 1 |  
  • Part Number: 7038
  • Notes: Standard
    Reservoir Cap. Relief Pressure: 16 lb.
  • Part Number: 7916
  • Notes: Safety Lever
    Relief pressure: 16 lbs.
  • Part Number: 7516
  • Notes: Standard
    Relief pressure: 16 lbs.
  • Part Number: 7520
  • Notes: Standard
    Relief pressure: 20 lbs.
  • Part Number: 2471S
  • Notes: Silver
    Thermocap(TM) OEM Replacement with thermometer built in 16 psi.
  • Part Number: 54208
  • Notes: Coolant recovery tank cap
  •  | Page 1 of 1 |  

Picking up a new radiator cap for Mercury Mountaineer might seem like a simple task, but it's one that does wonders for your radiator – especially if you've had problems with overheating. Our Mountaineer radiator caps were built to keep the pressure low in your radiator with their pressure-release valves and allow for easy coolant refills with a simple push-and-twist movement. If you have questions, feel free to ask our friendly, knowledgeable staff in-store, and take advantage of our handy Same Day Store Pickup.

Other Customers Also Viewed



Buy online and return core parts to the store to be refunded the price.
Core Parts Policy


On Orders $75 or Greater
and free shipping to APO, FPO, DPO addresses.
Get More Details


Buy Online, Return
Get More Details


Save time by buying online and picking up items in store.
Learn More

Payment Methods: