Mr. Gasket® - Thermocap™ Radiator Cap

4.54 reviews|Item # 102217555
$32.43 - $37.53
In Stock - Ships in 24 to 48 hrs
1980 Jaguar XJ-Type
Fits Following Model(s):
  • XJ6 / XJS
  • California Proposition 65 Warning.
Product Options
Add To Cart
Add to Wishlist
Authorized Dealer

Have a Question? Ask a Specialist

888.634.9437Live Chat
Low Prices. Price match guarantee
Guaranteed Fitment. Always the correct part
In-House Experts. We know our products
Easy Returns. Quick & Hassle Free
Select Product Options
Please Select
    Total: $0.00
    Add To CartCancel

    Product Details

    Jaguar XJ6 / XJS 1980, Thermocap™ Radiator Cap by Mr. Gasket®. Pressure: 16 lbs. Material: Aluminum. Keeping your engine cool is pretty important, so Mr. Gasket has a full line of cooling system accessories. Whether it’s a simple, plain-Jane thermostat installed where the sun don’t shine or a full-on chrome thermostat housing worthy of a show car, you’ll be covered. CA Prop 65 WARNING - This product contains chemicals known to the State of California to cause cancer, and/or birth defects or other reproductive harm.

    Notes: California Proposition 65 Warning.


    Maximum Pressure (psi): 16 psi
    Cap Logo: Plain
    Radiator Cap Shape: Octagon
    Gauge Included: Yes
    Gauge Range: 30-270 degrees F
    Cap Material: Aluminum
    Quantity: Sold individually


    • Brilliant triple-chrome plating
    • Prevent boilovers
    • Lower cooling system temperatures for more power

    A fresh thermostat and radiator cap are the first line of defense for an overheating car. You can improve your car’s looks at the same time with chromed or colored parts from Mr. Gasket for a custom look at the same time.

    For nearly 50 years, the name Mr. Gasket® has been associated with the race-winning performance and efficiency. The history of the company's development is a real American success story. Mr. Gasket was founded by Joseph F. Hrudka in late 1964. Using his drag race car, the 1957 Chevy, as a test automobile, he understood the need and decided to create a vast line of engine gaskets and fasteners that would withstand high engine pressures, temperatures, and other stresses experienced by the cars used for drag racing. There have been many days and nights since that fateful moment, and today, all Mr. Gasket products, proven to work effectively on racing circuits around the world, have achieved both a legendary status in motorsports and trusted reputation in the marketplace.


    Mr. Gasket® warrants its products to be free from defects in materials or workmanship for a period of 90 days. The Warranty period begins on the date the product is delivered.

    The Warranty is granted to the end-user and applies to products which are purchased, installed, and used for the purposes for which they are originally designed. This Warranty covers defects arising under normal use and does not cover malfunctions or failures resulting from misuse, abuse, neglect, improper installation, or incorrect maintenance.

    During the Warranty period, Mr. Gasket will repair or replace, at no charge, a product that is defective in materials or workmanship. Mr. Gasket reserves the right to either repair or replace a defective component at its discretion and reserves the right to substitute an equivalent product under the terms of this Warranty.

    Magnuson-Moss Warranty Act:
    Legally, a vehicle manufacturer cannot void the warranty on a vehicle due to an aftermarket part unless they can prove that the aftermarket part caused or contributed to the failure in the vehicle (per the Magnuson Moss Warranty Act (15 U.S.C. 2302(C)) Learn More



    Every Customer can leave a review about our service and the product that was purchased. In order to leave your review for your new product, please follow the link in the email you receive after completing your purchase. You can rate appearance, ease of installation, price/value and product quality.

    Mr. Gasket® - Thermocap™ Black Radiator Cap
    Mr. Gasket® - Thermocap™ Radiator Cap
    Average Rating: 4.4 of 5
    3.5 of 5
    Rad Cap
    Bought it for my Jeep Cherokee trail rig because it’s one of the ones that popped up when I put in my credentials to search, doesn’t even fit.
    Posted by (Rockingham, VA) / 1996 Jeep Cherokee
    Was this review helpful for you? Yes
    4.8 of 5
    A bit of a novelty but looks good. Probably should have ordered the red colour rather than the black but appears to be working well.
    Posted by (Northolt, EAL) / 1999 Dodge Ram
    Was this review helpful for you? Yes
    5 of 5
    Very good quality product, great price.
    Posted by (Waterloo, IN) / 1969 Buick Skylark
    Was this review helpful for you? Yes
    4.3 of 5
    Great Functional Accent
    Bought this to put a little something on my new cooling system.
    Posted by (Saint Paul, MN) / 1970 Chevy El Camino
    Was this review helpful for you? Yes
    Low Prices Price match guarantee
    Guaranteed Fitment Always the correct part
    In-House Experts We know our products
    Easy Returns Quick & Hassle Free

    All manufacturer names, symbols, and descriptions, used in our images and text are used solely for identification purposes only. It is neither inferred nor implied that any item sold by is a product authorized by or in any way connected with any vehicle manufacturers displayed on this page.