Best Bluedriver in 2026

2 ½" triple scale gauge (0-300 psi, 0-21 kg/cm², 0-20 bar)

16" rubber hose (with 14mm & 18mm spark plug adapters)

18mm, 14mm, 12mm & 10mm adapters

2 ½" triple scale gauge (0-300 psi, 0-21 kg/cm², 0-20 bar)

16" rubber hose (with 14mm & 18mm spark plug adapters)

18mm, 14mm, 12mm & 10mm adapters

OTC's Compression Tester Kit is ideal for use on all types of gasoline engines including domestic, import, motorcycle, marine, and small engines

Includes: 12-inch flex 14mm standard, 12-inch flex 14mm long reach, and 10mm, 12mm, and 18mm thread adapters - adapters work on both flat and tapered seat plugs

Professional quality, dual scale 2-1/2 inch diameter gauge reads 0-300 psi and 0-2100 kPa and features a chrome bezel, rugged protective outer boot, and zero adjust feature

Adapters for a wide number of vehicles (spark plug types/depths)

Includes 2 rubber cones ends for quick check (no need to thread into head)

3" Gauge has dual color scale with 0-300 PSI, 0-20 kPa

【Deluxe Design Set】: Complete package for compression testing on gasoline engines, comes with 4 adapters of standard and specialty, and 16-inch flex hose gauge assembly with quick coupler, all firmly stored in the deluxe case.

【Accurate Measurement】: Digital compression gauge has incredible 0.5 display resolution within 1% of the exact pressure ranged from 10-200 PSI.

【Smart Display and Bleeder Valve】: Wide backlit LCD screen displays large, clear numbers in 4 units. Auto off after 2.5 minutes of inactivity to preserve battery life. Side bleeder valve allows repeated tests without disconnecting the hose.

PARAMETER---Double Scale Gauge:0-7bar,0-100psi.Three size adapters :6.30mm(SAE 1/4)7.89mm(SAE 5/16)9.49mm(SAE 3/8).

UNIVERSAL DESIGN ---Used on any engine you need to read fuel psi on.Helps identify and diagnose low fuel pressure, a faulty fuel pressure regulator, leaking injectors, fuel leaks, and clogged fuel filters.

WELL MADE---High quality brass connectors and Corrosion resistant rubber hose.Will last a long time.

CYLINDER COMPRESSION TEST AND DIAGNOSTIC: JIFETOR automotive engine compression tester kit is used for measuring pressure on gasoline engine cylinder quickly and accurately. The gauge readings assist to diagnose if there are following problems: valve sticking, carbon build-up, cracked cylinder head or defective main gasket, poorly seated or worn piston rings, burned or damaged piston. Please refer to the vehicle manufacturer's service instructions or proprietary manual and our manual for detail

WIDE USE OF SMALL ENGINE COMPRESSION TESTER: There are 16" long flexible extension hose with 4 sizes (10mm 12mm 14mm 18mm) selectable brass adapters in the engine compression test kit, widely suitable for most types and depth spark plug well on gasoline petrol gas fuel engine cylinder, which is common in motorcycle, car, ATV, snowmobile, dirtbike, lawn mower, chainsaw etc. Please note, the engine compression gauge is not used for most diesel engine, due to the low pressure range 0-300PSI

UNIVERSAL AUTO CYLINDER PRESSURE TEST GAUGE CONNECTORS: The straight and angled push-on connectors in the cylinder compression tool kit are equipped with rubber tapered tip for easy and quick installation, you just need to push and hold it seal against cylinder head, rather than screw to tighten like 10mm 12mm 14mm 18mm appropriative adapters. These push-on connectors are also perfect for some types and depth spark well, which the appropriative adapters do not fit

CONVENIENT: Swivel end coupler allows quick and easy change-out of adapters

DURABLE CONSTRUCTION: Made with tough carbon steel with a chrome plated gauge for measuring in harsh environments

ACCURATE MEASUREMENTS: 0-1000 psi/0-70 bar gauge with release valve

Fits all common spark plug holes

Large easy to read gauge

SAE (0 PSI to 300 PSI) and metric (1 to 21 kilograms/centimeter square)

Cylinder leak down tester,compression test kit -Engine Cylinder Dual Gauge Leakdown Tester kit Diagnostics Tool. Suitable for any gasoline engine with 14, 12 or 10mm spark plugs.

UNIVERSAL FITMENT. Suits all local and imported cars and trucks, ideal for testing trucks and car models where clearance is minimal. check the amount of leakage in 4-stroke engines.

Designed to detect a variety of common engine faults such as worn piston rings, cylinder head cracks, worn valves and blown head gaskets. It checks the amount of leakage in an engine cylinder and helps determine the source.

FUNCTIONS: TEST CYLINDER COMPRESSION --- This cylinder compression tester kit is used for testing pressure on gasoline engine cylinder quickly and accurately. The gauge readings assist to diagnose if there are following problems: valve sticking, carbon build-up, cracked cylinder head or defective main gasket, poorly seated or worn piston rings, burned or damaged piston.

APPLICATIONS: GASOLINE ENGINE CYLINDER --- Come with different sizes rotary and push on adapters, widely suitable for most types and depth spark plug well on gasoline petrol gas fuel engine cylinder, which is common in motorcycle, car, truck, lawn mower, ATV and so on. NOT FOR DIESEL ENGINE.

UNIVERSAL: INCLUDE 10 CONNECT ADAPTERS --- 13-in-1 engine tester gauge kit includes 1-piece spring buckle gauge; 5-pieces brass adapters M10, M12, M14, M16, M18 for wide applications; 2-pieces straight and angled push-on connectors for direct testing; 1-piece extra long 8 inches extension straight rod, 1-piece 12 inches M12 extension hose rod and 1-piece 16 inches extension hose for long reach testing. Come with extra 2-piece spark plug testers.

【Complete Kit for Car Testing】: the 9pcs cylinder testing kit comes with 8 x compression tool and 1 x spark plug tester, total package includes 1 x SPARK PLUG TESTER, 1 x 300PSI DUAL UNITS GAUGE, 1 x STRAIGHT RUBBER CONE ADAPTER, 1 x CURVED RUBBER CONE ADAPTER, 4 x BRASS ADAPTERS, and 1 x 14-inch EXTENSION HOSE, complete package allows you to test the car’s condition easily by yourself

【Extra Value with Spark Plug Tester】: the spark tester is a must have diagnostic tool for engine which has a spark plug, you can diagnose ignition or engine outboard motor issues and a fault in the fuel delivery system quickly and easily; If spark is being sent, the tester will mirror the spark and you can see it light up, therefor you can find dirty spark plugs, defective points, bad cables or connections, etc.

【300psi Dual Units Gauge with 3” Dial】: easy to read this compression gauge which comes with 0 - 300 PSI and 0 - 20 kg/ cm square dual units, the gauge cover is protected by an anti-scratch coating and rubber protection to absorb shocks; Plus, all the items are contained in an ABS case for easy storage, the fittings can accommodate most or all of your needs for most engines, good kit overall for your garage

Checking compression on petrol engine quickly and accurately.

Completed Kit comes with adapters for most applications.

Thread sizes: m8*1.5, m10*1.0, m12*1.25, m14*1.25

Actron's Professional Compression Tester Kit detects worn piston rings, burnt valves, and blown head gaskets on most foreign and domestic vehicles, small engines, motorcycles, snowmobiles, and ATVs

Convenient push-button side release valve allows repeated testing without the need to disconnect between tests

Gauge features a 2-1/2 inch diameter, easy-to-read white face with standard and metric scales: 0-300 PSI and 0-2100 kPa, accurate Bourdon Tube movement, and heavy-duty rubber boot

【Complete Kit for Car Testing】: the 9pcs cylinder testing kit comes with 8 x compression tool and 1 x spark plug tester, total package includes 1 x SPARK PLUG TESTER, 1 x 300PSI DUAL UNITS GAUGE, 1 x STRAIGHT RUBBER CONE ADAPTER, 1 x CURVED RUBBER CONE ADAPTER, 4 x BRASS ADAPTERS, and 1 x 14-inch EXTENSION HOSE, complete package allows you to test the car’s condition easily by yourself

【Extra Value with Spark Plug Tester】: the spark tester is a must have diagnostic tool for engine which has a spark plug, you can diagnose ignition or engine outboard motor issues and a fault in the fuel delivery system quickly and easily; If spark is being sent, the tester will mirror the spark and you can see it light up, therefor you can find dirty spark plugs, defective points, bad cables or connections, etc.

【300psi Dual Units Gauge with 3” Dial】: easy to read this compression gauge which comes with 0 - 300 PSI and 0 - 20 kg/ cm square dual units, the gauge cover is protected by an anti-scratch coating and rubber protection to absorb shocks; Plus, all the items are contained in an ABS case for easy storage, the fittings can accommodate most or all of your needs for most engines, good kit overall for your garage

Sturty & Durable: Made of high-quality materials, and treated with rust and corrosion protection, sturty and durable enough. Large acrylic dial with rubber cover is convenient to read datas more accurately. Pressure range: 0-300 psi, 0-20kg/cm².

Professional Tester Kit: Our cylinder compression tester kit is a professional tool to measure pressure on gasoline engine cylinder quickly and accurately. It is suitable for petrol engines on motorcycles, cars, trucks, ATVs, and any other vehicles.

Easy to Carry: The handheld carrying case is made of high quality PVC, keeps all accessories in place and protects the gauges during storage and transportion.

ADVANCED COMPRESSION TEST: Includes everything you need for a fast & effective compression pressure testing of petrol, gas, and fuel engine cylinders for most spark plug types on cars, trucks, motorcycles, marines, ATVs, UTVs, snowmobiles, boats, & more

UNIVERSAL COMPATIBILITY: Includes multi-size adapters (straight, curved, & male fittings) for compatibility with a wide range of vehicles. All components are protected in a custom ABS carry case for easy organization and transport.

STURDY & ANTI-RUST: Easy-to-read instrument panel with dual units (0-300 psi, 0-21 kg/cm²). Acrylic glass gauge cover with anti-scratch coating and rubber protective cover for outstanding shock-absorption performance.

Sturty & Durable: Made of high-quality materials, and treated with rust and corrosion protection, sturty and durable enough. Large acrylic dial with rubber cover is convenient to read datas more accurately. Pressure range: 0-300 psi, 0-20kg/cm².

Professional Tester Kit: Our cylinder compression tester kit is a professional tool to measure pressure on gasoline engine cylinder quickly and accurately. It is suitable for petrol engines on motorcycles, cars, trucks, ATVs, and any other vehicles.

Easy to Carry: The handheld carrying case is made of high quality PVC, keeps all accessories in place and protects the gauges during storage and transportion.

✅ PROFESSIONALLY MADE: Whether in a shop or a home garage, this durable compression tester automotive or engine compression checker is designed to last. Complete the job without breaking the bank with this affordable, yet premium engine compression tester

✅ EASY & FLEXIBLE: This compression tester kit comes with easy-connecting coupler for all adapters, and a handy deflator for releasing air and automatic resetting of the engine compression gauges for repeat testing on diesel trucks and cars

✅ COMPLETE COMPRESSION TESTER KIT: The cylinder leak down teste releases valve allows quick re-testing of cylinder without removing the tester or adapter with large 2-1/2" gauge with dual ince / metric readings: 0 to 300 PSI and 0 to 21 kg / cm2

FUNCTIONS: TEST CYLINDER COMPRESSION --- This cylinder compression tester kit is used for testing pressure on gasoline engine cylinder quickly and accurately. The gauge readings assist to diagnose if there are following problems: valve sticking, carbon build-up, cracked cylinder head or defective main gasket, poorly seated or worn piston rings, burned or damaged piston.

APPLICATIONS: GASOLINE ENGINE CYLINDER --- Come with different sizes rotary and push on adapters, widely suitable for most types and depth spark plug well on gasoline petrol gas fuel engine cylinder, which is common in motorcycle, car, truck, lawn mower, ATV and so on. NOT FOR DIESEL ENGINE.

UNIVERSAL: INCLUDE 9 CONNECT ADAPTERS --- 10-in-1 engine tester gauge kit includes 1-piece spring buckle gauge; 5-pieces brass adapters M10, M12, M14, M16, M18 for wide applications; 2-pieces straight and angled connector for direct testing; extra long 8 inches extension tube and 16 inches extension hose for long reach testing.

petrol engine cylinder compression tester kit precision manufacturing, professionally tested,checking compression on petrol engine quickly and accurately.The straight and angled push-on connectors are equipped with rubber cone tip for easy and quick installation with 10mm 12mm 14mm 18mm appropriative adapters.

Engine cylinder compression tester kit and spark plug tester universal fitment for all small engine compression tester; cars, trucks, motorcycles, lawn mowers, chainsaws, boat motors and other types 2 or 4 stroke, single or multi-cylinder gasoline engines.Checking compression on petrol engine quickly and accurately.

Universal spark plug tester use to tests for lack of spark condition, inline spark tester test ignition circuit continuity at each cylinder, quick and easy test helps check the condition of the ignition system at each cylinder.

FUNCTION: The engine oil pressure tester kit is used to diagnose and test the engine oil pressure value, to check whether it is normal. The measured value can be used to judge the operation of fuel system components such as electric gasoline pump and oil pressure regulator. And with this best in class oil pressure test tools, you can get a definite pressure value well without relying on the dashboard light.

INCLUDING: This oil pressure test tool kit contains a wide assortment of durable adapters designed to fit mot import/domestic engines. The 10 adapters are marked with number, you can choose the right one very easy. 4FT long hose is made of rubber nylon resin, working pressure 300 PSI. This is a great kit for DIY auto tools, to test engine oil pressure value quickly and accurately.

DURABLE AND SAFE: The material of the engine oil pressure tester kit consists of Copper, Rubber, ABS Plastic, Iron, and Aluminum; And the gauge is equipped with a shockproof cover, which is under great protect and convenient maneuverability; Whole oil pressure tester kit packed in a molded case making it easy to store and organize the equipment.

FITS YOUR VEHICLE -- It is compatible with gasoline 4-stroke engines and 12mm or 14mm spark. As long your vehicle has a standard spark plug socket, this set will work for you.

COMPARE CYLINDERS -- It best tests cylinder leak down and compression when comparing a suspect cylinder to a known good cylinder on the same engine.

EASY TO USE -- Remove the Schrader valve and turn the regulator off before applying shop air. Install the hose to the cylinder, the unit to an air supply, calibrate the leak gauge, and connect the unit to the cylinder hose. Diagnosis is made by observing the amount of leakage indicated on the cylinder leakage gauge and listening for leakage at various points of the car system.

Sturty & Durable: Made of high-quality materials, and treated with rust and corrosion protection, sturty and durable enough. Large acrylic dial with rubber cover is convenient to read datas more accurately. Pressure range: 0-300 psi, 0-20kg/cm².

Professional Tester Kit: Our cylinder compression tester kit is a professional tool to measure pressure on gasoline engine cylinder quickly and accurately. It is suitable for petrol engines on motorcycles, cars, trucks, ATVs, and any other vehicles.

Easy to Carry: The handheld carrying case is made of high quality PVC, keeps all accessories in place and protects the gauges during storage and transportion.

Adapters for a wide number of vehicles

Includes 2 rubber cones ends for quick check (no need to thread into head)

3" Gauge has dual color scale with 0-300 PSI, 0-20 kPa

【APPLICABLE】Quickly and accurately check compression with this Automotive Compression Tester Kit. Compact with easy to read gauge makes it an ideal accessory for the mechanically minded.

【FEATURE】Compatible for use on petrol engines motorcycles and automotive vehicles. Diagnose and repair problems all in the convenience of your own garage.

【INCLUDING】Manometer with two test pressure: 0 - 300 PSI / 0 - 21 kg / CM². Hose overall length: 430mm, pressure tube length: 153mm, angled pressure tube length: 155mm.

Sturty & Durable: Made of high-quality materials, and treated with rust and corrosion protection, sturty and durable enough. Large acrylic dial with rubber cover is convenient to read datas more accurately. Pressure range: 0-300 psi, 0-20kg/cm².

Professional Tester Kit: Our cylinder compression tester kit is a professional tool to measure pressure on gasoline engine cylinder quickly and accurately. It is suitable for petrol engines on motorcycles, cars, trucks, ATVs, and any other vehicles.

Easy to Carry: The handheld carrying case is made of high quality PVC, keeps all accessories in place and protects the gauges during storage and transportion.

【UNIVERSAL FITMENT】Suits all local and imported cars and trucks, ideal for testing trucks and car models where clearance is minimal. check the amount of leakage in 4-stroke engines.

【FEATURE】Designed to detect a variety of common engine faults such as worn piston rings, cylinder head cracks, worn valves and blown head gaskets. It checks the amount of leakage in an engine cylinder and helps determine the source.

【WORKING PRINCIPLE OF LEAKDOWN DETECTOR】 Once the leakage tester has been connected to one of the cylinders, compressed air (45-100psi) is fed into that particular cylinder through the built in pressure regulator. Diagnosis is made by observing the amount of leakage that is indicated on the cylinder leakage gauge and by listening for leakage at various points of the cars system. Please note: This cylinder leak tester is not suitable for shallow cylinder.

Tests cylinder pressure on diesel cars and trucks

Deflator allows for an air release and automatic reset of the gauge for repeat testing

Swivel end quick coupler provides easy connection to all Lang diesel compression adapters