The coolant reservoir is an integral component of the modern cooling system. On some systems it’s an expansion tank and part of the pressurized system, providing the space for the coolant to expand and contract according to temperature, while on others it’s an overflow tank that contains coolant that escapes from the radiator. Both types are usually made of plastic, which can deteriorate, limit capacity on expansion tank systems, and be an eyesore when you’ve upgraded the rest of your engine bay.

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    • (0 reviews)
      # sp8950
      Aluminum Coolant Expansion Tank by Mishimoto®. Add some additional reliability and engine bay styling with the Mishimoto Aluminum Coolant Expansion Tank.
      50% greater capacity than stock plastic expansion tank100% aluminum, fully-welded construction for maximum durability during repeated cold and hot transitions
      +1
      $120.00 - $270.00
    • (0 reviews)
      # sp51972
      Diamond-Cut Vented Recovery Tank by Be Cool®. Be Coolant is an Extended-Life, Super Duty Coolant & Antifreeze that is ideal for all applications. Be Coolant features a new-generation earth-friendly biodegradable, propylene glycol...
      Made to improve your cooling system efficiencyDesigned to provide greater cooling power
      $149.99 - $189.99
    • (0 reviews)
      # sp35755
      Universal Natural GM Surge Tank by Be Cool®. Finish: Natural. Great time-saving components to simplify your radiator installation. These accessories can help you achieve a clean, professional look.
      Made to improve your cooling system efficiencyDesigned to provide greater cooling power
      $199.99
    • (0 reviews)
      # sp49065
      Coolant Expansion Tank by Moroso®. To keep your engine cool and improve your vehicle's performance, this product is just the right solution. Manufactured from high-quality materials, it will surely provide excellent performance and...
      High quality at an affordable priceBuilt to match your exact requirements
      $124.58 - $726.10
    • (1 review)
      # sp22818
      Aluminum Coolant Overflow Tank by Weapon-R®. Whether you’re going racing or just want to look like you are, this aluminum tank will dress up your engine compartment.
      Manufactured from Billet 6061 AluminumInstalls in OEM location
      $96.05 - $170.00
    • (0 reviews)
      # sp102271
      Neo-Ti Aluminum Coolant Overflow Tank by Weapon-R®. Whether you’re going racing or just want to look like you are, this aluminum tank will dress up your engine compartment. Carefully designed for maximum performance, is will more...
      Manufactured from Billet 6061 AluminumInstalls in OEM location
      $127.50 - $208.25
    • (0 reviews)
      # sp101183
      Aluminum Expansion Tank by Canton Racing®. Increase the life of your vehicle's engine by keeping your cooling system in top condition. Replace your faulty engine cooling component with this highly efficient replacement product and...
      High quality at an affordable priceBuilt to match your exact requirements
      $128.00 - $194.00
    • (0 reviews)
      # mpn358591501
      PRO-X™ Overflow Premium Canister by TCI®. Material: Aluminum. 1 Piece. Overflow Canister Pro x GM PG Transmission. New lightweight aluminum overflow canister for Powerglide transmissions safely contains high-rpm fluid blow-by....
      High quality at an affordable priceBuilt to match your exact requirements
      $146.64
    • (0 reviews)
      # mpn358591282
      Turbo PRO-X™ Overflow Canister by TCI®. Material: Aluminum. 1 Piece. Overflow Canister Pro x GM TH400 Transmission. PRO-X™ Overflow Canisters Provide Added Insurance Against Fluid LossNew lightweight aluminum overflow canisters...
      High quality at an affordable priceBuilt to match your exact requirements
      $145.81
    • (0 reviews)
      # sp21522
      Satin Black Engine Coolant Reservoir by C&R Racing®. This product is made of high-quality materials to serve you for years to come. Designed using state-of-the-art technology and with customers in mind, this product will last a...
      Made from premium materials to endure years of abuseTested to outperform all comparable products on the market
      $234.29
    • (0 reviews)
      # sp64450
      Circulating Tank Heaters by Kats Heaters®. The circulating tank heater is designed to keep the coolant in your engine warm. This product helps stimulate warm temperatures, gives quicker starts and protects your engine from damage...
      Thermostatically controlled 135° - 175°Uses versatile strap type mounting
      $82.71 - $95.17
    • (0 reviews)
      # sp49143
      Dual Washer Coolant Reservoir by Killer B Motorsport®. To keep your engine cool and improve your vehicle's performance, this product is just the right solution. Manufactured from high-quality materials, it will surely provide...
      High quality at an affordable priceBuilt to match your exact requirements
      $293.00 - $311.00
    • (0 reviews)
      # mpn458128179
      Upper Turbo Coolant Reservoir by Killer B Motorsport®. The purpose of the OEM Engine Coolant Filler Tank (here forth known as the “ECFT") is a high point fill. What is a high point fill? Good question! Bear with me as I ramble a...
      Full 3D CNC Machined Neck and BodyHand TIG Welded Barb Connections and Bracket
      $285.00
    • (0 reviews)
      # sp23395
      Coolant Expansion Tank by Granatelli Motor Sports®. This product is made of high-quality materials to serve you for years to come. Designed using state-of-the-art technology and with customers in mind. It will meet your needs and...
      High quality at an affordable priceBuilt to match your exact requirements
      +1
      $276.45 - $326.80
    • (0 reviews)
      # sp93066
      W/W Reservoir Kit by Roto-Fab®. To keep your engine cool and improve your vehicle's performance, this product is just the right solution. Manufactured from high-quality materials, it will surely provide excellent performance and...
      High quality at an affordable priceBuilt to match your exact requirements
      $119.95
    • (0 reviews)
      # sp102903
      Coolant Tank Kit by Wehrli Custom Fabrication®. To keep your engine cool and improve your vehicle's performance, this product is just the right solution. Manufactured from high-quality materials, it will surely provide excellent...
      Made to keep your engine running coolImproves your vehicle's performance
      +39
      $320.16 - $400.20
    • (0 reviews)
      # sp104298
      Overflow Coolant Tank by Deviant Race Parts®. Are you building a compound turbo kit? This tig welded, fabricated coolant tank will do the trick. If you’re looking for a quality product that will serve you for years to come, look...
      Bolts up to factory mountsNew Radiator Cap
      $300.00
    • (0 reviews)
      # mpn584185988
      De-Gas Bottle by Ford Performance®. Coolant expansion / fill tank features a billet radiator style neck. Comes with the Ford Racing 16-lb pressure cap M-8100-A. Turn your Ford into a high-performance street and drag strip monster...
      Designed to help you get the most out of your vehiclePerfect for use in high-performance environments
      $224.05
    • (1 review)
      # sp20625
      Reservoir Bracket by Flex-a-Lite®. Properly mount your power steering reservoir with this Flex-a-lite mounting bracket. It's made from quality materials for strength and durability.
      Sold as a kitDirect fit
      $24.90 - $31.21
    • (0 reviews)
      # mpn469957020
      Billet Coolant Block Off Plate by Merchant Automotive®. Billet rear engine cover coolant block off plate is used to stop the coolant leak or possible coolant leaks. The plate has a built in O-ring to seal, NO GASKET REQUIRED. Build...
      High quality at an affordable priceExpertly made from premium materials
      $90.70
    • (0 reviews)
      # mpn469956982
      Coolant Tank Float Switch by Merchant Automotive®. Coolant Tank Float Switch. Build your ideal engine cooling system with superior Merchant Automotive cooling system parts that will help effectively carry away heat to prevent...
      High quality at an affordable priceExpertly made from premium materials
      $43.28
    • (0 reviews)
      # mpn469957024
      Coolant Tank Parts Kit by Merchant Automotive®. Build your ideal engine cooling system with superior Merchant Automotive cooling system parts that will help effectively carry away heat to prevent engine compartment overheating....
      High quality at an affordable priceExpertly made from premium materials
      $140.65
    • (0 reviews)
      # mpn358591492
      PRO-X™ Transmission Overflow Canister by TCI®, 1 Piece. Includes Drain Valve. Overflow Tank made from Aluminum. Overflow Canister Pro x Ford C4 Transmission. PRO-X™ Overflow Canisters Provide Added Insurance Against Fluid...
      Engineered to enhance your vehicle's performanceMade to stringent quality standards
      $152.62
    • (0 reviews)
      # sp12164
      Coolant Overflow Tank by PERRIN Performance®. Replace your OEM plastic coolant overflow tank with a sleek one from PERRIN Performance! The PERRIN coolant tank adds clearance for aftermarket intercooler piping and is a great...
      Universal designTank cap for a great seal and OEM look
      $151.20
    • (0 reviews)
      # sp102272
      Hybrid Aluminum Tank by Weapon-R®. Whether you’re going racing or just want to look like you are, this aluminum tank will dress up your engine compartment. Carefully designed for maximum performance, is will more than just meet...
      Manufactured from Billet 6061 AluminumInstalls in OEM location
      $110.00 - $323.00
    • (0 reviews)
      # sp116170
      Supercharger Coolant Tanks by Canton Racing®. To keep your engine cool and improve your vehicle's performance, this product is just the right solution. Manufactured from high-quality materials, it will surely provide excellent...
      Made to keep your engine running coolImproves your vehicle's performance
      $123.00 - $259.00
    • (0 reviews)
      # mpn358586840
      Expansion Tank by Jones Racing®. To keep your engine cool and improve your vehicle's performance, this product is just the right solution. Manufactured from high-quality materials, it will surely provide excellent performance and...
      Bolt-OnAluminum
      $336.59
    • (0 reviews)
      # mpn3457086364
      Coolant Reservoir kit by Roto-Fab®. This product is made of high-quality materials to serve you for years to come. Designed using state-of-the-art technology and with customers in mind. It will meet your needs and deliver great...
      Roto-Fab™ products carry a 1 year warranty against defectsUnique and innovative design, unsurpassed value
      $125.95
    • (0 reviews)
      # 245923320
      Universal Overflow Tank by Big End Performance®. If you want to reach the finish line faster or you're just looking to spiff up your vehicle, then this Big End Performance product is the way to go. With this effective solution,...
      High quality at an affordable priceExpertly made from premium materials
      $52.15 - $63.22
    • (0 reviews)
      # 230696078
      Universal Radiator Overflow Tank by Spectre Performance®. Material: Stainless Steel. Finish: Polished. Cap Type: Twist. Includes: w Radiator Overflow Tank, hardware. Spectre’s Radiator Overflow Tanks offer reliable coolant...
      Made from polished stainless steelInstructions and mounting hardware included
      $44.36 - $59.19
    • (0 reviews)
      # 245923338
      Universal Stainless Steel Overflow Tank Kit by Flex-a-Lite®. Material: Stainless Steel. It is designed to be used with a Flex-a-fit radiator as well as any other radiator utilized by your vehicle. All the parts are made of...
      Direct bolt-on to your Flex-a-fit radiatorCompatible with other radiators
      $78.70 - $82.73
    • (0 reviews)
      # 245923327
      Universal Overflow Tank by BTP®. This BTP product helps your engine cooling system to ensure maximum performance of your vehicle by providing increased coolant flow preventing your four-wheel friend's engine from overheating. This...
      Engineered to prevent your vehicle's engine from overheatingMade from premium materials
      $33.42 - $71.88
    • (0 reviews)
      # mpn1453519
      Universal Cool Can by Mr. Gasket®. Gasoline is the lifeblood of your car. It needs to get from the tank, to the carburetor or injectors, and into the engine. Mr. Gasket has components to make that happen, in ample quantities, for...
      Assure full fuel flow to any engine at any RPMBoost power and torque
      $85.07
    • (0 reviews)
      # 245923310
      Universal Stainless Steel Coolant Overflow Tank by Mr. Gasket®. Material: Stainless Steel. Look to Mr. Gasket for the health of the cooling system on your custom, modified or race car. An overheated engine will produce less power,...
      Race-engineered partsMeets or exceeds OEM quality
      $64.06 - $70.36
    • (5 reviews)
      # 230696076
      Universal Coolant Overflow Catch Tank by Weapon-R®. Whether you’re going racing or just want to look like you are, this aluminum tank will dress up your engine compartment. Carefully designed for maximum performance, is will more...
      Manufactured from Billet 6061 AluminumBillet Aluminum machined fittings
      $59.50 - $89.25
    • (0 reviews)
      # 230696075
      Universal Neo-Ti Aluminum Coolant Overflow Tank by Weapon-R®. Finish: Neo-Ti. Whether you’re going racing or just want to look like you are, this aluminum tank will dress up your engine compartment. Carefully designed for maximum...
      Manufactured from Billet 6061 AluminumBillet Aluminum machined fittings
      $89.25
    • (0 reviews)
      # mpn470412758
      Universal GT Reservoir Breather Tank by APEXi®. The GT Reservoir Tank is manufactured with the highest quality fabrication. When setup correctly, the hand welded aluminum tank is not just a reservoir but serves as an air separation...
      Prevents cavitation and removes air from the cooling systemCompatible with most factory radiator layouts
      $263.56
    • (0 reviews)
      # 287931936
      Universal Radiator Surge Tank by Howe Racing Enterprises®. Built to fit in congested engine bays, the vertical design raises the fill neck to create a high point in the system. Vertical tanks feature two 1/4" NPT fittings, a...
      Built to match your exact requirementsHigh quality you can rely on
      $79.03 - $94.25
    • (0 reviews)
      # 105577495
      Universal Overflow Catch Tank by Jaz®. 1 Piece. Material: Polyethylene. This product is made of high-quality materials to serve you for years to come. Designed using state-of-the-art technology and with customers in mind. It will...
      High quality at an affordable priceExpertly made from premium materials
      +4
      $28.11 - $76.37
    • (0 reviews)
      # 105577607
      Universal Recovery Catch Tank by Jaz®. 1 Piece. Material: Polyethylene. This product is made of high-quality materials to serve you for years to come. Designed using state-of-the-art technology and with customers in mind. It will...
      Seamless cross-linked polyethylene shellMolded-in 1/4"-20 threaded mounting inserts
      +2
      $28.94 - $32.34
    • (0 reviews)
      # 245923335
      Universal Radiator Overflow Canister by Proform®. Material: Billet Aluminum. Brass Fittings. Single Mounting Tab. With Proform Logo. Sold Each. If you are looking to enhance your vehicle's performance, then this top-notch product...
      Carefully designed to improve the performance of your vehicleCrafted from first-rate materials
      $91.94 - $97.40
    • (0 reviews)
      # 245923298
      Universal Coolant Expansion Tank by Blox Racing®. BLOX Racing coolant expansion tanks are designed to catch coolant overflow and properly re-circulate it back to the radiator. The proper re-circulation ensures that your engine...
      High quality at an affordable priceExpertly made from premium materials
      $48.00 - $56.00
    • (1 review)
      # mpn457999645
      Universal Breather Tank by GReddy®. Designed originally for racing engines, today’s compact production engines can also benefit from the used of GReddy’s Radiator Bleed Tank. The air in the radiator causes over heating. The...
      Designed to deliver trouble-free, consistent performanceRight for your vehicle and racing lifestyle
      $150.10
    • (0 reviews)
      # 385181085
      Universal Circulating Tank Heater by Kats Heaters®. The circulating tank heater is designed to keep the coolant in your engine warm. This product helps stimulate warm temperatures, gives quicker starts and protects your engine from...
      Thermostatically controlled 135° - 175°Uses versatile strap type mounting
      $90.98 - $149.73
    • (0 reviews)
      # mpn458000484
      Universal Coolant Expansion Tank Kit by Radium®. The Radium Coolant Expansion Tank features three ports that use -6AN to 9/16-18 O-ring adapters (not tapered pipe threads) for a positive seal. The main tank is a 2-piece design...
      High quality at an affordable priceExpertly made from premium materials
      $303.95
    • (0 reviews)
      # mpn3064649435
      Universal Modular Overflow Expansion Tank Chamber and Tube by Zirgo®. 1 Kit. A new frontier in adjustability! Zirgo’s™ Modular Overflow Tanks allow you to customize the size of your overflow tanks by featuring exclusive...
      Tightly sealed, interlocking seamsCorrosion-resistant polished aluminum
      $23.75
    • (0 reviews)
      # mpn3064649434
      Universal Modular Overflow Tank System by Zirgo®. 1 Kit. A new frontier in adjustability! Zirgo’s™ Modular Overflow Tanks allow you to customize the size of your overflow tanks by featuring exclusive expansion chambers. Simply...
      Tightly sealed, interlocking seamsCorrosion-resistant polished aluminum
      $66.45
    • (0 reviews)
      # 248241714
      Universal Polished Overflow Tank Kit by Zirgo®. 1 Piece. Zirgo’s® Standard Overflow Tank is a functional treat for the eyes. Mounts anywhere in your engine bay using beautifully crafted adjustable billet tank mounts. No need to...
      High quality at an affordable priceExpertly made from premium materials
      $66.45 - $75.95
    • (0 reviews)
      # 560896540
      Universal Radiator Overflow Tank by All American Billet®. All American Billet radiator overflow tanks were designed to match the unique design of power steering remote reservoirs. They are machined from 6061-T6 billet aluminum.
      Made to provide unequaled quality and reliabilityTruly unique look and feel
      $89.95 - $124.95
    • (0 reviews)
      # 560881964
      Universal Silverline Series Radiator Overflow Tank by All American Billet®. All American Billet radiator overflow tanks were designed to match the unique design of power steering remote reservoirs. They are machined from 6061-T6...
      Made to provide unequaled quality and reliabilityTruly unique look and feel
      $99.95 - $124.95
    • (0 reviews)
      # 84998665
      Universal Tank Mounting Bracket by Moroso®. With this quality part backed by a great price, you can enjoy your vehicle so much more than you thought was possible. This Moroso part is specifically engineered to make your vehicle run...
      High quality at an affordable priceBuilt to match your exact requirements
      $10.26 - $58.09
    • (0 reviews)
      # mpn474702064
      Universal Overflow Tank Fitting by Big End Performance®. This product is made of high-quality materials to serve you for years to come. Designed using state-of-the-art technology and with customers in mind. It will meet your needs...
      High quality at an affordable priceExpertly made from premium materials
      $2.63
    • (0 reviews)
      # 105577385
      Universal Catch Tank Accessories by Jaz®. To keep your engine cool and improve your vehicle's performance, this product is just the right solution. Manufactured from high-quality materials, it will surely provide excellent...
      High quality at an affordable priceExpertly made from premium materials
      $4.06 - $19.75
    • (0 reviews)
      # mpn1147572
      Universal Circulating Tank Heater Hardware Kit by Kats Heaters®. The circulating tank heater is designed to keep the coolant in your engine warm. This product helps stimulate warm temperatures, gives quicker starts and protects...
      Uses versatile strap type mountingModerate mechanical ability required to install
      $21.38
    • (0 reviews)
      # 383433076
      Universal Circulating Tank Heater Y Adapter by Kats Heaters®. The circulating tank heater is designed to keep the coolant in your engine warm. This product helps stimulate warm temperatures, gives quicker starts and protects your...
      Thermostatically controlled 135° - 175°Uses versatile strap type mounting
      $10.70 - $13.32
    • (0 reviews)
      # mpn458000187
      Universal Coolant Tank Mounting Bracket by Radium®. This product is made of high-quality materials to serve you for years to come. Designed using state-of-the-art technology and with customers in mind. It will meet your needs and...
      High quality at an affordable priceExpertly made from premium materials
      $23.70
    • (0 reviews)
      # mpn3064064104
      Universal Overflow Catch Can by RCI®. Fluid Capacity: 1 quart. RCI takes great pride in building the finest racing products at affordable price with high quality and a high safety standard for all types of racing for 20 years. RCI...
      Black1 Quart Capacity
      $29.60
    • (0 reviews)
      # mpn3064649389
      Universal Overflow Tank Bracket by Zirgo®. 1 Piece. Don't Spill! The Zirgo™ Overflow Tank bracket provides a secure, corrosion-resistant solution for mounting your modular or standard Overflow Tank. Works with ZFOFT and ZFETS...
      Designed in the USAHigh quality at an affordable price
      $9.45
    • (0 reviews)
      # mpn1271175571
      Universal Overflow Coolant Bottle by Sprintex®. To keep your engine cool and improve your vehicle's performance, this product is just the right solution. Manufactured from high-quality materials, it will surely provide excellent...
      High quality at an affordable priceBuilt to match your exact requirements
      $39.00
    • (0 reviews)
      # 245923302
      Universal by Flex-a-Lite®. This tank from Flex-a-lite is engineered to be used as either an expansion tank or an overflow tank. The Flex-a-lite expansion and overflow tanks match the engineering and appearance of the company’s...
      Built to match your exact requirementsTested to outperform all comparable products on the market
      $78.76 - $199.94




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    By itself, one of our performance coolant tanks will be a practical and stylish addition to your cooling system, but it’s also the perfect complement to a performance radiator, cooling fan and other cooling system and underhood modifications. We offer both universal and direct fit coolant tanks, manufactured from strong and durable aluminum or stainless steel. And while most have an attractive bright natural finish, some are available polished, chrome plated, or in anodized or powder coated colors.

    Your OE plastic coolant tank was adequate when your engine was in a factory state of tune, but modified high compression or forced induction high RPM engines create much more heat that needs to be dissipated, so every facet of your cooling system has to be up to the job. A plastic tank can degrade with time and numerous hot and cold temperature cycles, developing cracks and potential leaks that make it the weak point in your cooling system, possibly causing your expensive engine to overheat. Replace it with one of our performance coolant tanks. All of our aluminum and stainless steel tanks are of sturdy leak-proof construction, pressure tested, and built to withstand repeated temperature transitions.

    Along with being an ideal stylish and functional replacement for discolored and crack-prone plastic tanks on newer vehicles, a performance coolant tank can also be a great looking and practical addition to the cooling system on older cars. Many classic and muscle cars had no coolant reservoirs and when the radiator overflowed, the coolant ended up on the ground. Not only is such loss of coolant not conducive to effective engine cooling, it’s unacceptable because coolant is considered hazardous material and antifreeze is dangerous to children and animals. A performance coolant tank used with the appropriate radiator cap will ensure proper coolant level in the radiator and prevent coolant spills.

    We offer performance coolant tanks for both expansion tank and overflow tank applications, and some can be used for either system type. Many of our expansion tanks have greater capacity, so you can increase the overall coolant capacity of your system. Our universal tanks come in a wide range of shapes and sizes, so you can get the tank that’s the right fit for your vehicle, and most come with universal mounting brackets and hardware to facilitate installation. We have direct fit tanks for most popular vehicle applications. These tanks are designed to bolt on in the same location as the original plastic tank, and some feature an external sight gauge to allow a quick check of coolant level.

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    Coolant Tanks Reviews

    Average rating:  5  5 - 55 reviews
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    5 of 5
    Coolant Reservoir Cap
    The product looks just like the original cap, fits great tight fit I would recommend this company to my family and friends. Very fast shipping and packing was great. I received product 2 days early, I am very happy with the communication and all around service. Thank You.
    RPosted by Roger (California Hot Springs, CA) / March 23, 2017
    2002 Dodge Dakota
    Was this review helpful for you? Yes
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