Cooling System Service Tools

Cooling System Repair Tools

Featured Brands

  • MotoRad® - Radiator Cap Tester Adapter
    MotoRad®Radiator Cap Tester Adapter (3132)
    0
    # mpn823281889
    Radiator Cap Tester Adapter (3132) by MotoRad®. 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 (3132) by MotoRad® will...
    Superior grade materials for unbeatable safety and comfortExpertly crafted utilizing advanced technologies
    $29.78
  • MotoRad® - Radiator Cap Tester Adapter
    MotoRad®Radiator Cap Tester Adapter (3128)
    0
    # mpn823281888
    Radiator Cap Tester Adapter (3128) by MotoRad®. 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 (3128) by MotoRad® will...
    Superior grade materials for unbeatable safety and comfortExpertly crafted utilizing advanced technologies
    $31.20
  • MotoRad® - Radiator Cap Tester Adapter
    MotoRad®Radiator Cap Tester Adapter (3121)
    0
    # mpn823281885
    Radiator Cap Tester Adapter by MotoRad®. 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 by MotoRad® will last a...
    Superior grade materials for unbeatable safety and comfortExpertly crafted utilizing advanced technologies
    $14.95
  • DIY Solutions® - Engine Coolant Radiator Cap Adapter
    Save 7%
    DIY Solutions®Engine Coolant Radiator Cap Adapter (HVA03139)
    0
    # mpn4893715235
    Engine Coolant Radiator Cap Adapter by DIY Solutions®. If you're seeking to get your steel stallion back to its tip-top condition, then this top-notch replacement solution is what you should definitely look out for. When it comes to...
    Designed to help restore your vehicle to its former gloryQuick replacement to let you enjoy an awesome ride again
    $21.77
    $23.41Save $1.64 (7%)
  • CTA® - 3-piece Radiator and Cap Tester Adapter Kit
    CTA®3-piece Radiator and Cap Tester Adapter Kit (7120)
    0
    # mpn4872388498
    3-piece Radiator and Cap Tester Adapter Kit by CTA®. When it comes to quality, CTA knows no compromises. All the products made by this stringent quality control conditions. The latest manufacturing methods coupled with the use of the...
    Tests truck cooling system pressure on older model GM 2.5L "X" body & 1.8L "J" body vehicles with larger filler necks (211/16" O.D.)Kit includes 15/16" plug for testing system and radiator caps
    $42.87
  • CTA® - 64mm x 3mm Radiator Pressure Tester Cap Adapter
    CTA®64mm x 3mm Radiator Pressure Tester Cap Adapter (7121)
    0
    # mpn4242420646
    64mm x 3mm Radiator Pressure Tester Cap Adapter by CTA®. When it comes to quality, CTA knows no compromises. All the products made by this stringent quality control conditions. The latest manufacturing methods coupled with the use of...
    64 mm x 3 mm threads to fit many medium and heavy duty trucksFor use with CTA #7050, plus other brands
    $37.87
  • CTA® - Radiator Pressure Tester Adapter Kit
    CTA®Radiator Pressure Tester Adapter Kit (7050)
    0
    # mpn1452814127
    Radiator Pressure Tester Adapter Kit by CTA®. When it comes to quality, CTA knows no compromises. All the products made by this stringent quality control conditions. The latest manufacturing methods coupled with the use of the...
    Tests automotive pressurized cooling systems up to 30 PSISpecialty tools to get your job done in a safer and easier fashion
    $196.63
  • CTA® - Radiator Pressure Tester Cap Adapter
    CTA®Radiator Pressure Tester Cap Adapter (7112)
    0
    # mpn1452814269
    Radiator Pressure Tester Cap Adapter by CTA®. When it comes to quality, CTA knows no compromises. All the products made by this stringent quality control conditions. The latest manufacturing methods coupled with the use of the...
    To Test Pressure Relief Valve in Cooling System CapAll metal construction
    $27.35
  • MotoRad® - Pressure Tester Cooling System Adapter
    MotoRad®Pressure Tester Cooling System Adapter (3116)
    0
    # mpn4774068278
    Pressure Tester Cooling System Adapter by MotoRad®. 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 by MotoRad® will...
    Superior grade materials for unbeatable safety and comfortExpertly crafted utilizing advanced technologies
    $32.52
  • Assenmacher® - Coolant Drain Hose
    Assenmacher®Coolant Drain Hose (VTC100)
    0
    # mpn4630575304
    Coolant Drain Hose by Assenmacher®. 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 by Assenmacher® will last a...
    Will operate at its full efficiency for years aheadDesigned to provide the ultimate in practicality
    $61.58
  • Assenmacher® - M47 x 3.00 Cooling Tank Pressure Tester Adapter
    Assenmacher®M47 x 3.00 Cooling Tank Pressure Tester Adapter (FZ25)
    0
    # mpn1461322109
    M47 x 3.00 Cooling Tank Pressure Tester Adapter by Assenmacher®. New One-Piece Design. 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,...
    Will operate at its full efficiency for years aheadDesigned to provide the ultimate in practicality
    $45.22
  • Assenmacher® - M49 x 2.50 Cooling Tank Pressure Tester Adapter
    Assenmacher®M49 x 2.50 Cooling Tank Pressure Tester Adapter (FZ47)
    0
    # mpn1461322105
    M49 x 2.50 Cooling Tank Pressure Tester Adapter (FZ47) by Assenmacher®. New Updated Design. 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...
    Will operate at its full efficiency for years aheadDesigned to provide the ultimate in practicality
    $64.36
  • Assenmacher® - M52 x 2.50 Cooling Tank Pressure Tester Adapter
    Assenmacher®M52 x 2.50 Cooling Tank Pressure Tester Adapter (FZ32A)
    0
    # mpn1466885858
    M52 x 2.50 Cooling Tank Pressure Tester Adapter (FZ32A) by Assenmacher®. 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 operate at its full efficiency for years aheadDesigned to provide the ultimate in practicality
    $46.55
  • Assenmacher® - M52 x 2.50 Cooling Tank Pressure Tester Adapter
    Assenmacher®M52 x 2.50 Cooling Tank Pressure Tester Adapter (FZ35A)
    0
    # mpn1461322108
    M52 x 2.50 Cooling Tank Pressure Tester Adapter (FZ35A) by Assenmacher®. 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 operate at its full efficiency for years aheadDesigned to provide the ultimate in practicality
    $64.60
  • Assenmacher® - M52 x 3.00 Cooling Tank Pressure Tester Adapter
    Assenmacher®M52 x 3.00 Cooling Tank Pressure Tester Adapter (BMW350)
    0
    # mpn1466885833
    M52 x 3.00 Cooling Tank Pressure Tester Adapter by Assenmacher®. New One-Piece Design. 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,...
    Will operate at its full efficiency for years aheadDesigned to provide the ultimate in practicality
    $65.08
  • Assenmacher® - M63 x 3.00 Cooling Tank Pressure Tester Adapter
    Assenmacher®M63 x 3.00 Cooling Tank Pressure Tester Adapter (FZ41)
    0
    # mpn1461322106
    M63 x 3.00 Cooling Tank Pressure Tester Adapter by Assenmacher®. New Updated Design. 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,...
    Will operate at its full efficiency for years aheadDesigned to provide the ultimate in practicality
    $71.63
  • Mastercool® - 10-Piece Cooling System Pressure Test Adapter Kit
    Mastercool®10-Piece Cooling System Pressure Test Adapter Kit (43305)
    0
    # mpn4693393122
    10-Piece Cooling System Pressure Test Adapter Kit (43305) by Mastercool®. 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...
    Adapter update kit to be used with 43300Detects and exposes external system leaks
    $73.91
  • Mastercool® - 14-Piece Cooling System Pressure Test Kit
    Mastercool®14-Piece Cooling System Pressure Test Kit (43300)
    0
    # mpn4693392568
    14-Piece Cooling System Pressure Test Kit by Mastercool®. 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 by Mastercool®...
    Detects and exposes external system leaksDetects internal engine leaks due to blown gaskets or cracked block
    $167.57
  • Mastercool® - 25-Piece Master Cooling System Pressure Test Kit
    Mastercool®25-Piece Master Cooling System Pressure Test Kit (43302)
    0
    # mpn4693392524
    25-Piece Master Cooling System Pressure Test Kit by Mastercool®. 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 by...
    Detects and exposes external system leaksDetects internal engine leaks due to blown gaskets or cracked block
    $240.71
  • Stant® - 32 mm x 16 mm Cooling System Adapter
    Stant®32 mm x 16 mm Cooling System Adapter (12027)
    0
    # mpn1862085
    32 mm x 16 mm Cooling System Adapter by Stant®. 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 by Stant® will last a...
    Superior grade materials for unbeatable safety and comfortExpertly crafted utilizing advanced technologies
    $51.60
  • Stant® - 48 mm Cooling System Adapter
    Stant®48 mm Cooling System Adapter (12032)
    0
    # mpn1912018
    48 mm Cooling System Adapter by Stant®. 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 by Stant® will last a lifetime....
    Superior grade materials for unbeatable safety and comfortExpertly crafted utilizing advanced technologies
    $100.82
  • CTA® - 2-Piece Fan Clutch Wrench Set
    CTA®2-Piece Fan Clutch Wrench Set (1059)
    0
    # mpn4634730678
    2-Piece Fan Clutch Wrench Set by CTA®. When it comes to quality, CTA knows no compromises. All the products made by this stringent quality control conditions. The latest manufacturing methods coupled with the use of the highest-grade...
    Superior grade materials for unbeatable safety and comfortExpertly crafted utilizing advanced technologies
    $70.03
  • CTA® - 32 mm Fan Clutch Wrench
    CTA®32 mm Fan Clutch Wrench (A878)
    0
    # mpn1452815086
    32 mm Fan Clutch Wrench by CTA®. When it comes to quality, CTA knows no compromises. All the products made by this stringent quality control conditions. The latest manufacturing methods coupled with the use of the highest-grade...
    Specialty tools to get your job done in a safer and easier fashionPractical and efficient solutions for pros and DIYers alike
    $21.10
  • Cal-Van Tools® - Thermostat Wrench
    Cal-Van Tools®Thermostat Wrench (751)
    0
    # mpn1743241
    Thermostat Wrench (751) by Cal-Van Tools®. A common job on these motors as is in all motors is thermostat replacement and to do this you must remove the thermostat housing. In these applications the bottom housing bolt is almost...
    Designed to help to get your job done rightManufactured utilizing the highest quality materials
    $20.63
  • GearWrench® - 2-Piece Fan Clutch Pulley Holder Set
    GearWrench®2-Piece Fan Clutch Pulley Holder Set (3950)
    1
    # mpn1167971
    2-Piece Fan Clutch Pulley Holder Set by GearWrench®. Since beginning, GEARWRENCH automotive specialty tools have been driven by innovation. From first specialty tool, the Model-T valve spring lifter, to latest ratcheting puller, built...
    Grips and securely holds the pulley housingLoosens and removes oval or round hole holding nuts
    $55.70
  • GearWrench® - 48 mm 1/2" Drive Fan Clutch Wrench
    GearWrench®48 mm 1/2" Drive Fan Clutch Wrench (3473)
    0
    # mpn1167970
    48 mm 1/2" Drive Fan Clutch Wrench by GearWrench®. Since beginning, GEARWRENCH automotive specialty tools have been driven by innovation. From first specialty tool, the Model-T valve spring lifter, to latest ratcheting puller, built...
    Designed for use with a 1/2" square drive tool and a torque wrenchRefer to factory service manual for torque specifications and thread direction
    $31.06
  • Lisle® - Holding Wrench
    Lisle®Holding Wrench (43580)
    0
    # mpn1610012
    Holding Wrench by Lisle®. 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 by Lisle® will last a lifetime. It will meet...
    Superior grade materials for unbeatable safety and comfortExpertly crafted utilizing advanced technologies
    $19.07
  • OTC® - Water Pump Holding Tool
    OTC®Water Pump Holding Tool (6616)
    0
    # mpn1929150
    Water Pump Holding Tool by OTC®. 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 by OTC® will last a lifetime. It will...
    Holds timing chain in place so water pump can be removed for serviceSpecial design allows easy installation regardless of timing chain orientation
    $76.93
  • Performance Tool® - 2-Piece Fan Clutch Wrench Set
    Performance Tool®2-Piece Fan Clutch Wrench Set (W80585)
    0
    # mpn4525946018
    2-Piece Fan Clutch Wrench Set by Performance Tool®. 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 by Performance Tool®...
    Each tool includes 1/2" square drive hole for use with breaker bar for more torqueCheck service manual for torque specifications and thread direction
    $16.39
  • Performance Tool® - Water Pump Holding Tool
    Performance Tool®Water Pump Holding Tool (W89210)
    0
    # mpn4833028844
    Water Pump Holding Tool by Performance Tool®. 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...
    Holds Water Pump Sprocket on 2002 to current motors so water pump can be servicedSpecial design allows easy application regardless of sprocket orientation
    $15.27




Like most other parts of your car, the cooling system requires certain tools for effective diagnosis and repair. These range from simple funnels and drain pans needed for a coolant change, to unique wrenches and sockets for component removal and installation, and diagnostic tools for finding leaks and checking system performance. These tools are specifically designed for cooling system service, and they can all be found right here on our digital shelves.

Many components that formerly could be removed and installed with ordinary hand tools now require special tools. Some fan clutches are retained with large nuts and require much larger wrenches than you’d ordinarily have in your tool box, and coolant hoses and transmission cooler lines are often retained with couplers that can only be disconnected with special release tools. We offer a large selection of these and many other special tools.

We have an array of testers so you can check coolant condition and concentration including test strips, hydrometers, and refractometers. Coolant is a hazardous waste and ethylene glycol is dangerous to children and animals, so when coolant is drained one of our large capacity drain pans is a must so it can be disposed of properly. We also have a large selection of funnels and fill kits including systems with air bleeder lines to make adding coolant quick and easy. An air lift kit creates a vacuum in the system, eliminating air pockets so the system can be refilled in seconds, and it can also be used to check for leaks.

The source of a coolant leak can be difficult to find, but they won’t elude you if you’re armed with our testers. We have cooling system pressure testers and the necessary adapters needed to attach the tool to different radiators and pressure caps. If the leak is inside the engine, a cylinder leak down tester can be used to pressurize each cylinder. If air bubbles are seen in the coolant, the block or head may be cracked or the head gasket could be blown. And evidence of these defects can also be found if the chemical in a combustion gas tester changes color, indicating the presence of combustion gas in the coolant.

A non-contact infrared thermometer is an invaluable tool for checking cooling system performance. Unlike a traditional thermometer that may not provide accurate measurements due to poor contact, an infrared thermometer measures infrared radiation for instantaneous accurate readings. Us the infrared thermometer to scan the radiator for temperature anomalies that could indicate restrictions, and aim it at the thermostat housing to check the opening temperature. We also offer multi-meters and scan tools for effective diagnosis of electric cooling fan circuits.

Cooling System Service Tools Reviews

6 reviews
5 of 5
Really good quality for the price.
OEM Tools® - Cooling System Refiller AirEvac Kit
I was a bit leery about buying this tool at first. Since most of the "Professional Grade" versions of this tool are double the price, I figured this one would have some kind of flaw. But, I was very surprised to find that this thing is built super durable, and it has worked on all the makes/models I've used it for so far. I am a professional mechanic and have had this for about 4 or 5 months now, so that should say something. The only things some might consider problems are: 1. The connections have to be dry before it will pull a vacuum. If there's any coolant on the adapter or the reservoir opening then it won't seal properly. I just run a rag over everything before I make my connections and it works fine. 2. (And this may be more of a positive, depending on how you look at it) The only adapter that seems to work is the long cone-shaped one. I'm assuming this is because the other ones don't go deep enough to cover the overflow tube on most models. Nonetheless, I think this is a benefit, because I don't have to sit there trying to figure out which adapter to use on each vehicle, I just keep the one on and go. 3. There is a little more convenience having the more expensive 2-valve designs over this ones 3-valve design. But, once you get used to the 3-valve it's really not that big of a deal.
Posted by Customer / October 03, 2020
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