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Coolant Reservoir Tanks & Parts
Showing In Stock Items. Show All 66 Items.
Dorman Coolant Reservoir Caps
Dorman coolant reservoir caps are designed to fit over your factory coolant reservoir. They're easily identified by the coolant logo on the top and simply thread on in the stock location. The caps are built from high-grade plastic to withstand high coolant and underhood temperatures.
( 13 )
$3.99
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$9.99
Dorman Radiator Caps
Dorman radiator caps are designed to match the fit and function of the original cap on specified vehicles, and are engineered for durability and reliable performance. These direct replacements restore functionality with quality materials, the proper fit, and a long service life.
( 1 )
$6.99
Summit Racing™ Radiator Overflow Tank Caps
Summit Racing™ offers radiator overflow tank caps for a variety of applications, including hundreds of Chevy and GMC trucks from the 1970s, '80s, and '90s. These OE replacements are made from factory materials and specs to ensure proper fitment, appearance, and performance. They're ideal if your original is lost or damaged. Each cap meets or exceeds OEM quality standards.
Not Yet Reviewed
$5.99
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$6.99
Canton Racing Replacement Tank Caps
These replacement tank caps from Canton Racing are designed for Canton Racing's overflow catch tanks, recovery tanks, and power steering tanks. They come available in vented and non-vented applications to suit your needs.
( 4 )
$19.00
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$59.00
Moroso Racing Radiator Caps
These high-pressure Moroso caps fit standard-size radiator filler necks and increase the boiling point to improve heat transfer. They have a solid brass spring retainer and a stainless steel spring that maintain an accurate pressure setting over time and will not rust.
( 39 )
$20.99
Canton Racing Billet Aluminum Mustang Coolant Tank Caps
Canton Racing billet aluminum Mustang coolant tank caps are designed to fit OEM or Canton Racing late model Ford coolant tanks with a threaded fill neck. They are manufactured from billet aluminum and feature a small diameter with a scalloped design, making them the perfect complement to any engine bay.
( 10 )
$62.00
OER GM Radiator Overflow Jar Caps
Replace that broken, warped, or missing cap on your ride to keep your overflow bottle from leaking coolant with a new one from OER. These radiator overflow jar caps are designed to fit on various GM applications and feature "Engine Coolant Only" stamped right onto them. When you need quality replacements that are as good as the originals or better, equip your ride with the best--OER!
( 28 )
$9.99
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$22.79
Drag Race Solutions Billet Aluminum Radiator Caps
Drag Race Solutions billet aluminum radiator caps custom machined from 6061 aluminum and fitted with Stant caps. Available in different psi ratings to properly regulate the pressure in your vehicle's cooling system, select either an 18 psi or a 7psi cap designed for applications that use copper head gaskets and require a lower pressure in the cooling system. Both are available with a matte black powdercoat or chrome finish that's ideal for race cars or show cars. Choose the psi and finish preferred.
Not Yet Reviewed
$39.99
Canton Racing Radiator Caps
Canton Racing radiator caps are designed for use with their aluminum expansion tanks or any other application that requires a high-pressure radiator-style cap.
( 8 )
$62.00
Crown Automotive Coolant Bottle Caps
When your coolant bottle caps lose their tight sealing effectiveness, simply order one of these inexpensive replacements before you begin to spill engine coolant. Crown Automotive has a line of caps that will fit various vehicles. These caps fit your overflow tank perfectly and often seal better than the factory originals. Get your trusted replacement parts from Crown.
( 8 )
$7.99
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$8.99
URO Parts Coolant Reservoir Caps
URO Parts coolant reservoir caps are part of their line of cooling components that also includes thermostat housings, coolant flanges, water pumps, fan clutches, fan bearing housings, hoses, and more. Like all URO Parts, their coolant reservoir caps are tested and quality-checked for function and durability. The quality of URO Parts cooling system components is high enough that they sell some of them directly to prestigious European auto makers as the OEM supplier. Plus, they cost much less than other European brands or costly OEM pieces.
Not Yet Reviewed
$4.99
Fathouse Performance Billet Coolant Caps
Cover that lackluster plastic coolant cap with an anodized piece of billet aluminum from Fathouse Performance to elevate the look of your engine bay. More than just a functional component, these billet coolant caps serve as a stylish upgrade that enhances the visual appeal of your vehicle. Precision-machined from premium 6061-T6 billet aluminum for durability and longevity, the caps quality construction ensures exceptional strength and resilience, making them capable of withstanding the harsh conditions within your engine bay. The caps feature a ghosted FP logo that is CNC cut before they're anodized in either red or black. Installation is easy, caps clip onto the factory unit without the need of tools or having to use double-sided tape. Choose the coolant cap in finish you'd prefer.
Not Yet Reviewed
$59.99
Hybrid Racing Reservoir Covers
Brake fluid is mean, and has been known to eat paint on contact, especially if left uncleaned. So Hybrid Racing made these master cylinder reservoir covers to soak up leaky fluid and keep your engine bay looking as clean as possible, even when you're not around to wipe it up. With your reservoir covers installed and set to the on position, you'll never have to worry about your paint getting jacked up.
Not Yet Reviewed
$18.99
Philadelphia Racing Products Extra-Large Intercooler Filler Caps
With PRP billet machined extra-large filler caps there is no need to fight getting ice into your intercooler again! These one-of-kind extra-large caps offer almost a 7 in. opening and are sealed with a Buna-N O-ring for a watertight seal. All caps are completed with an anodized finish in either clear, red, blue, or black. Two available styles, a weld-on version or bolt-on version, come complete with stainless steel hardware. Select the intercooler filler cap model in the finish suited to fit your needs.
Not Yet Reviewed
$195.99
Goodmark Coolant Reservoir Caps
Goodmark offers engine coolant reservoir caps for fitment on most GM cars and pickup trucks between 1973-92. These aluminum replacements include attachment points for your radiator hose—and include the words "Engine Coolant Only" stamped on the surface so you won't mix fluids by mistake.
Not Yet Reviewed
$15.99
CA Coolant Recovery Reservoir Tank Caps
CA offers coolant recovery reservoir tank caps for a variety of applications—including many Chevrolet Corvette models from the 1970s, '80s, and '90s. These black plastic replacements are manufactured in accordance with factory specifications to ensure proper fitment, appearance, and long-lasting performance. The caps are available with or without a coolant warning logo.
( 1 )
$8.99
Drake Coolant Reservoir Cap Covers
Why not add custom style under the hood? Made by Drake Muscle Cars, Drake coolant reservoir cap covers are machined from solid 6061-T6 billet aluminum and finished with motorsport-inspired style. Pop your hood to oohs and aahs when you top your fluids off with Drake coolant reservoir cap covers. Some applications include a security cap, and they all look great with Drake's other billet engine caps and covers.
( 1 )
$71.75
The Stop Shop Radiator Coolant Overflow Bottle Caps
The Stop Shop offers radiator coolant overflow bottle caps with the correct design as the originals found on late model vehicles, including the 1974-1975 and 1980 Camaros and other late model vehicles. Benefits of these radiator coolant overflow bottles caps are primarily related to their role in the proper functioning of your vehicle's cooling system, as the cap provides a seal to the radiator and coolant system, preventing leaks and maintaining the integrity of the closed system. These caps are designed to help regulate pressure, prevent boiling and air from entering, and allow for proper coolant recirculation, all of which are vital for a healthy engine and efficient cooling.
Not Yet Reviewed
$14.99
Summit Racing™ Replacement Stainless Steel Overflow Tank Caps
Make your Summit Racing™ stainless steel overflow tank beautiful and functional again with our polished aluminum replacement caps. They will provide the perfect fit and perform just like the originals. Keep your tank secure with Summit Racing™ stainless steel overflow tank replacement aluminum caps.
Not Yet Reviewed
$14.99
OER Authorized Universal Radiator Overflow Tanks
Dress up your engine compartment with one of these OER Authorized universal radiator overflow tanks. They're manufactured from durable stainless steel and then polished for a beautiful finish. The tanks are available in a variety of diameters and lengths to suit what's best for your engine and cooling combination.
( 92 )
$49.99
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$56.99
RESTOPARTS® Supplied Coolant Overflow Tank Caps
RESTOPARTS® Supplied coolant overflow tank caps add an authentic look to your engine bay. Available in vented and non-vented styles, each molded plastic cap features the correct, raised white lettering and internal threading for screw-on installation. RESTOPARTS® Supplied tank caps are must-have replacements for your broken or missing coolant overflow reservoirs. Choose the proper fit and style needed for your vehicle.
Not Yet Reviewed
$9.99
Clearance
Vibrant Performance Replacement Catch Can Caps
Vibrant offers a pair of very unique internally baffled catch can assemblies. But whether you have their open loop or closed loop design, it is good to know that repair and replacement parts are available to maintain their looks, performance, and position under the hood. Vibrant replacement catch can caps are crafted from 6061 aluminum and black anodized. They are available in styles for both the recessed filter top and recirculating closed loop top.
Not Yet Reviewed
$47.99
$39.50
Moroso Cooling System Expansion Tanks
These expansion tanks are perfect for cars with low-mount radiators to provide a convenient filling location and to bleed off unwanted air. Versions are now available with rugged 6061-T6 billet aluminum filler necks welded to the tank to withstand the continuous removal and installation of the cap. They're 100 percent pressure- tested to eliminate leaks, and they accept a standard-size radiator cap (not included).
( 107 )
$80.99
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$538.99
Dorman Coolant Reservoirs
Dorman coolant reservoirs are part of their line of OE solutions for your vehicle. They are quality-made replacements for your worn, cracked, or broken reservoirs. They collect excess coolant to prevent contaminating your engine compartment and the environment.
( 192 )
$9.99
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$266.99
