Top 8 Head Gasket Tester UK – Diagnostic, Testing & Measuring Tools

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1. Steel Seal

Steel Seal Blown Cylinder Head Gasket Fix Repair Sealer Lifetime Guarantee Award Winning

Steel Seal - Fixes Cracked Blocks. Fixes warped Cylinder Head. Fixes all types of head gasket failure. Fixes blown Head Gaskets. Fixes Dropped Liners.
BrandSteel Seal
ManufacturerSteel Seal
Part NumberSS

2. Block Tester

Block Tester BT-500 Combustion Leak Test Kit

Block Tester - Tests in seconds for combustion leaks caused by: Blown Head Gasket BHG Cracked Head or Block Pulled Bolts or Studs Warped Sealing Surfaces. When fluid turns from blue to YELLOW Combustion Leak is Present. Packaged in OEM white box. Complete combustion leak Test Kit - Includes Fluid - Nothing More to Buy.
BrandBlock Tester
ManufacturerBlock Tester
Height12.7 cm (5 Inches)
Length25.4 cm (10 Inches)
Width7.62 cm (3 Inches)
Part NumberBT-500

3. Worskop Essentials Online

Worskop Essentials Online Block Tester Kit Fluid for Head Gaskets & Cylinder Heads BT500

Worskop Essentials Online - Tests in seconds for Cracked Blocks. Works with Petrol and Diesel Vehicles. Tests in seconds for Warped Heads. Tests in seconds for Leaky Head Gaskets. Tests in seconds for Cracked Heads.
BrandWorskop Essentials Online
ManufacturerWorskop Essentials Online
Part NumberT374103


One Size, KALIMEX LTD ST5501 Coolant Leak Repair

KALIMEX LTD - Multi purpose ONe Step & Permanent. Item package dimension: 4. 4 cm l x 8. 8 cm w x 12. 6 cm H. Just shake, pour and go. No flushing. Mixes with all types of Antifreeze.
ManufacturerK-Seal International Limited
Height15.24 cm (6 Inches)
Length20 cm (7.87 Inches)
Width5.08 cm (2 Inches)
Part NumberST5501
Warranty1 year manufacturer

5. Engine Revive


Engine Revive - Advances in chemical science mean, if your vehicle has a blown head gasket, you can now easily "repair it yourself" by simply pouring hyper-seal liquid formula in the radiator / expansion tank of your vehicle for a FAST & PERMANENT repair, SAVING YOU hundreds of pounds in garage bills!.
BrandEngine Revive
ManufacturerHi-Gear Products Inc.
Part NumberPA9048S

6. K-Seal

2x 472ML, K-Seal Ultimate Head Gasket Repair

K-Seal - Permanently fixes blown head gaskets, cracked heads and porous engine block. One bottle is enough to fix gaskets in cars, SUVs and small trucks; large engines require two bottles. The ceramic micro-fibres in k-Seal ultimate are carefully produced so that they will seal leaks up to 0635mm in size.
Part NumberK3501X2


236 millilitres, Hi-Gear HG9048s Insta-Seal Head Gasket Fix Permanent Engine Block Sealer

HI-GEAR - Hi-gear hg9048s insta-seal permanent Block Sealer - 236 millilitres. Once the 'weld' is complete Hi-Gear Insta-Seal lasts the life of the engine. Works on cracked cylinder heads, heater matrix, core plugs and leaking radiators in all types of  aluminum and cast iron engines. Hi-gear insta-seal will not harm the cooling system when used correctly. Hi-gear insta-seal quickly and permanently seals large and small leaks in blown head gaskets.
Height18.1 cm (7.13 Inches)
Length5.72 cm (2.25 Inches)
Width5.72 cm (2.25 Inches)
Part NumberHG9048s

8. Aramox

CO2 Cylinder Head Gasket Leak Detector Tester with 3 Bayonet Adapters Gauge Kit Auto Tool, Cylinder Gasket Tester

Aramox - If you are not satisfied, we will accept all return, replacement or refund requests. Product introduction: this is a high quality cylinder head gasket leak detector, including a tester, a bottle of 250ml contrast agent, an empty bottle and 3 bayonet adapters. Comes with a storage box, a bottle of 250ml contrast agent, including a tester, all these tools are packed in a box for easy storage and transportation.

Excellent performance: the tester can be connected directly to the cooler to easily and quickly test for leaks and defects of the cylinder head gasket, such as thin line cracks. Product introduction: this is a high quality cylinder head gasket leak detector, an empty bottle and 3 bayonet adapters. Accurate design, high performance and reliable stability. Function: it can test the co2 content in the combustion systems of gasoline, diesel and natural gas engines.

Pre-test: this product has been fully tested before leaving the factory to ensure that it provides you with a satisfactory experience. Generally applicable: the tester has a conical plug that can fit all common radiators and reservoirs and is very convenient to use. Comes with a storage box, all these tools are packed in a box for easy storage and transportation. The test liquid after the test can be recycled and reused, which is environmentally friendly, economical and practical.
Height7 cm (2.76 Inches)
Length41 cm (16.14 Inches)
Width25 cm (9.84 Inches)
Part NumberAramoxpm0v6fyhe7

9. Zerone

Cylinder Pressure Gauge, Automotive Petrol Valve Engine Compression Tester Kit Timing Cylinder with Case for Gauge Car Motorcycle Tool

Zerone - Portable: supplied in blow-moulded carry case for easy storage and portability. High performance: displays in dual scale 63mm gauge reading range 0-300psi/0-20kg/cm², m14x1.

25, cylinder bores, piston rings, M12x1.25, this compression tester sets up quickly to give you accurate readings for finding faults in valves, complete with M10x1. 0, m18x1. 5 long reach adaptors, or head gaskets. Practical: come with 2 rubber cones that don't need to be threaded into the head, can test the compression on almost any engine; The kit comes with straight and angled push-on connectors, very practical and useful. Wide application: suitable for professional use on petrol engines of cars, motorbikes, trucks, and other petrol vehicles. Premium material: Metal self-locking connector, simple connection. More accurate.
Part NumberWJ-UK-2018-321-357