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28 Pcs Universal Cooling System Radiator, Coolant Pressure Tester Kit, Coolant Vacuum Refill Kit

4.7 (245 reviews)
£223.60

£223.60 inc. VAT (£186.33 ex. VAT)

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Selling Fast — 28 ordered this week
44 ordered this week
  • Premium quality at just £223.60 inc. VAT
  • Free UK delivery on every order
  • 30-day no-quibble returns under Consumer Rights Act 2015
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Why Choose CoolTest

The Ultimate Workshop Companion

Stop wasting billable hours bleeding stubborn cooling systems or guessing the source of a coolant leak. The CoolTest Pro is a heavy-duty cooling system leak tester and coolant vacuum filling tool rolled into one comprehensive package. Designed for independent garages and serious vehicle technicians, this kit provides everything you need to accurately pressurise the system, locate elusive header tank or hose leaks, and refill the entire circuit without introducing dangerous air pockets.

Universal Compatibility for the UK Market

Unlike basic sets that leave you hunting for the right cap, our 28-piece radiator adapter kit is meticulously engineered to fit a vast array of European, Japanese, and American vehicles common on UK roads. The colour-coded, precision-machined adapters ensure a perfect seal every time, making this automotive cooling system tester a vastly more versatile and cost-effective choice compared to paying premium markups for separate Laser Tools or Sealey adapter sets.

Prevent Comebacks with Vacuum Purge Technology

Air locks cause hot spots, blown head gaskets, and frustrated customers. By integrating a powerful coolant vacuum purge tool, this kit allows you to draw a deep vacuum on the cooling system, instantly highlighting any loss of vacuum (indicating a leak) before you even add fluid. Once verified, simply open the valve to draw fresh coolant into the system-completely free of trapped air. It's the most reliable coolant refill tool for modern, complex heater matrix and radiator networks.

Technical Specifications

0 - 35 PSI (0 - 2.5 Bar)
-76 to 0 cmHg (-1 to 0 Bar)
28 Universal Pieces (Colour-coded)
±2% Full Scale
90 PSI minimum for vacuum
Machined Aluminium, Brass, POM Plastic
CE & UKCA Compliant
5.8 kg

Price Comparison

See how our price compares across UK retailers

CoolTest UK (Specialist)BEST
£223.60
Delivery: FREEWarranty: 12 months + UK Support
eBay (est.)
£279.50
Delivery: VariesWarranty: Seller dependent
High Street RRP
£357.76
Delivery: N/AWarranty: Varies

Prices checked 23 June 2026. Prices may vary.

Customer Reviews

4.7 out of 5Based on 245 reviews
Verified Purchase

Brilliant bit of kit. The coolant vacuum purge tool alone has saved me hours on modern VWs and Audis. No more messing about revving the engine and squeezing hoses to get air locks out. The adapters feel just as solid as my old Sealey set.

Gareth Evans, SwanseaManchester
Verified Purchase

Ordered this car coolant pressure test kit on a Tuesday, arrived Wednesday morning. Found a hairline crack in a customer's expansion tank within 5 minutes of pumping it up. The colour-coded adapters make finding the right fit dead easy.

Mark Tomlinson, SheffieldBristol
Verified Purchase

As a serious home mechanic restoring a classic BMW, I needed a reliable radiator pressure pump tester. This kit is comprehensive and the gauge calibration is spot on. Very reassuring to know my cooling system is 100% sealed before hitting the road.

Dr. Ian Fletcher, OxfordBirmingham
Verified Purchase

The cooling system tester kit works flawlessly and the vacuum refill is a game changer for the workshop. Dropped a star because the case is quite large and takes up a fair bit of room in my mobile mechanic van, but you can't argue with having 28 adapters.

Liam Davies, BristolEdinburgh
Verified Purchase

Much better value than the Laser Tools equivalent. We use this vehicle cooling system tester daily in our independent garage. The hand pump is sturdy and doesn't leak down, which is essential for accurate diagnostics.

Chloe Patel, LeicesterLeeds
Verified Purchase

Great radiator cap tester kit and pressure pump. The only minor issue is you need a decent compressor to get a strong enough vacuum for the refill tool to work at its best. Once you hook it up to a 50L compressor though, it fills an entire system in seconds.

Simon Wright, NorwichSheffield
Verified Purchase

Top quality automotive cooling system tester. Used it to diagnose a weeping water pump gasket that only leaked under load. Pressurised the system cold and spotted the drip instantly. Paid for itself on the first job.

David MacLeod, GlasgowGlasgow

Frequently Asked Questions

CoolTest

CoolTest equips UK independent garages, mobile mechanics, and serious home technicians with workshop-grade diagnostic tools. We specialise in dual-function pressure testing and vacuum refill kits that eliminate trapped air, pinpoint leaks faster, and prevent costly comeback jobs.

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