10 Best Compression Tester of August 2025

• OTC's Deluxe Compression Tester Kit offers a complete package for compression testing on gasoline engines and comes complete with standard and specialty adapters
• Kit includes the deep well connector used on recessed plug well style heads and the new Ford Triton engine adapter using 16 mm thread plugs
• Adapters work on both flat and tapered seat plugs; corrosion resistant nickel plated finish protects metal components
• Extra long 25 inch flex hose gauge assembly with quick coupler allows easy viewing out of cluttered engine compartments
• Rugged blow molded hard case with removable lid

OTC

• Checking Compression On Petrol Engine Quickly And Accurately
• Easy Pressure Release Button On Side Of Tester
• Completed Kit Comes With Adapters For Most Applications
• Kits Includes 2 Rubber Cones Ends Which Do Not Need To Thread Into Head
• 3" Gauge Features Dual Color Scale

BETOOLL

• Air hold quick connector allows user to attach air supply for performing valve seal replacement without removal of the cylinder head
• Full-coverage kit for automotive, industrial, marine, and small engines
• Includes heavy-duty 2 3/4" gauge with 10" whip hose-gauge, rubber boot and various sizes of hose and adapters
• Kit comes in a molded case for easy storage
• Adapters to fit engines as small as lawn mowers, chain saws and trimmers

Mityvac

• 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, 0-20 kg/cm²). Acrylic glass gauge cover with anti-scratch coating and rubber protective cover for outstanding shock-absorption performance.
• ALL-IN-ONE COMPRESSION TESTER KIT: 1x spring buckle gauge, 1x straight rubber cone end adapter, 1x curved rubber cone end adapter, 4x brass adapters with metric male fittings & O-rings: M10, M12, M14, M18; 1x extension hose (14" length)
• SUPERIOR CUSTOMER SERVICE: If you are not satisfied with this product, we offer a replacement or refund. If you have any questions: 1.Go to your amazon account and find the order. 2. Click the seller name and enter the store page. 3. Click "Ask a question"

Orion Motor Tech

• 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, 0-20 kg/cm²). Acrylic glass gauge cover with anti-scratch coating and rubber protective cover for outstanding shock-absorption performance.
• ALL-IN-ONE COMPRESSION TESTER KIT: 1x spring buckle gauge, 1x straight rubber cone end adapter, 1x curved rubber cone end adapter, 4x brass adapters with metric male fittings & O-rings: M10, M12, M14, M18; 1x extension hose (14" length)
• SUPERIOR CUSTOMER SERVICE: If you are not satisfied with this product, we offer a replacement or refund. If you have any questions: 1.Go to your amazon account and find the order. 2. Click the seller name and enter the store page. 3. Click "Ask a question"

Orion Motor Tech

• Designed to perform compression tests to help identify damaged pistons, worn rings, burnt valves, and blown head gaskets
• Works on conventional, electronic, and computerized domestic and import vehicles
• Features 2-1/2-inch dial face with Bourdon tube meter and dual-calibrated scales which read 0-300 P.S.I. and 0-2100 k.P.a.
• Includes 15-inch rubber hose, side release valve and adapters (12mm, 14mm and 18mm)
• Can also be used for motorcycle, ATV, snowmobile, and marine applications

INNOVA

• Universal gasoline engine cylinder tester 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.
• Pressure gauge adopts rubber cover protected 3" large dial with dual range color coded scale for easy reading. Build-in check valve with pressure-maintaining function, ensure the gauge gets max pressure at the spark plug during compression.
• Universal spark plug tester use to tests for lack of spark condition,test ignition circuit continuity at each cylinder, quick and easy test helps check the condition of the ignition system at each cylinder.
• Compression tester kit and spark plug tester universal fitment for all engines; 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.
• Satisfaction guaranteed! Try any product we sell for a full 30 days. If not completely satisfied, return it to us for a no-hassle refund or credit.

KAKO

• 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.
• Professional and Durable: Built for all-day performance in the shop or garage from the highest quality steel and brass components.
• No Concerns Service: AZUNO products all enjoy One-year warranty and customer service always online to provide technical support.

AZUNO

• Measures cylinder compression to accurately diagnose engine condition
• Compatible with most standard spark plug threads
• Quick disconnect coupler separates hose from gauge for faster, easier connections to the engine
• Push button side release valve allows repeated testing without disconnecting
• Includes adapters for most standard spark plug threads: 10mm, 12mm, 14mm, 4mm long reach, 18mm

BOSCH

• 🚖Usage: The tester kit is designed for checking compression on petrol engine quickly and accurately. It detects valve sticking, carbon deposits, piston damage, cylinder head cracked or main gasket damage, poor or worn piston ring installation.
• 🚖Premium Quality：The thread adapters are heat treated with High performance mechanical Strength and resistance to abrasion and impact. The part of the extension hose are anti-oxidation and corrosion.
• 🚖Pressure Gauge: Manometer with dual range ( 0-21 bar or 0-300 psi) and rubber on the surface to prevent scratches.Build-in check valve and vent valve on the stem make the tester more accurately.
• 🚖Universal Compatibility: Come with M18*1.5, M14*1.25, M10*1.0, M12*1.25 thread adapters, 2 rubber cones extensions.Can be applied to different situations.
• 🚖After-sales Service：If there's any question a bout this product, feel free to contact us, we'll give you an exact answer within 24h.

Thorstone