10 bestRadiator Flush Kitof December 2025
112M consumers helped this year.
1
DHA 18pcs Car Cooling System Radiator Pressure Tester Kit, Coolant System Radiator Cap Pressure Tester with Hand Vacuum Test Pump, Water Leak Detector Kit Radiator Reservoir Tank Cap
DHA
9.9
2
GOTLUCK 28PCS Cooling System Radiator Pressure Tester Kit,Vacuum Type Cooling System Kit,Universal Radiator Pressure Tester Kit
GOTLUCK
9.8
3
DAYUAN Professional Radiator Cooling System Vacuum Purge Coolant Refill Tool Kit Set
DAYUAN
9.5
4
Laser 4287 Cooling System Vacuum Purge & Refill Kit
Laser
9.3
8% off
5
Prestone Coolant Flush, Engine Coolant Flush For Car To Prevent Problems & Maximise Performance, Car Coolant Flush With Advanced Cleaner To Dissolve Corrosion & Scale, Safe For All Engines, 1 Litre
Holts
9.0
Other
SPI Radiator Maintenance Kit - Plumbtub and QuickBung - with The SPI QuickBung Rubber Radiator Bung and PlumbTub Radiator Draining Tub. Take Your Radiator Maintenance to The Next Level - SEL9233
Coolant Vacuum Refill Tool Kit Engine Cooling System Vacuum Purge & Refill Kit New Coolant Bleeder Kit with 4 Rubber Sleeves & 1 Universal Adapter Cone Plug (with Carrying Case) (4 Connectors)
Fordle's 10m Drain Down Hose Kit for Radiator/Heating System Repair Maintenance Servicing – Flexible TPU Rubber with 12mm Bore – Includes Radiator Bleed Key & 2 Connector Clips & 2 Storage Straps
Holts Speedflush Coolant Flush, Universal Car Radiator Flush, High Performance Coolant Flush For Radiators & Cooling System, Quick & Easy To Use, Prevents Overheating, Suitable For All Cars, 250ml
6
Fordle’s 15m Drain Down Hose Kit for Radiator/Heating System Repair Maintenance Servicing – Flexible TPU Rubber with 12mm Bore – Includes Radiator Bleed Key & 2 Connector Clips & 2 Storage Straps
Fordle's
8.8
7
HORUSDY No-Spill Coolant Funnel Kit with Valve Switch, Radiator Bleeder Funnel Kit, Universal Fitment Applicable to Any Vehicle (15 Piece)
HORUSDY
8.5
8
EPAUTO Spill Proof Radiator Coolant Filling Funnel Kit
EPAUTO
8.3
15% off
9
LIQUI MOLY 5200 Oil Sludge Flush 300 ml
Liqui Moly
8.0
23% off
10
Just Dose It Central Heating Dosing Tool, Radiator Dosing Funnel - For Adding Chemicals Like Fernox Central Heating Inhibitor, Sludge Remover, Leak Sealer & Sentinel X100
Heatlab
7.7
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