What is good compression for a small engine?

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

The engine compression tester kit is used to test the pressure of petrol engines to help determine cylinder problems, not applicable to crude oil engines.

Double spark plug testers could help diagnose engine outboard motor and fuel delivery system problems quickly and easily, and the spark plug works properly with the intermediate indicator light glowing.

Engine compression tester with release valve desgin could offer single-handed operation inflation and deflation.

The 13pcs compression tester kit comes with 10 different connect adapters, widely suitable for most types engine cylinder such as car, ship, truck, lawn mower, ATV, boat and so on.

Triple range cylinder compression gauge reads 0-300 psi , 0-20 bar and 0-21 kg/cm². Checking compression quickly and accurately.

Manual pressure release for maintaining peak readings.

Professional-grade threaded adapters for leak-proof seals.

Extended hoses for hard-to-reach applications.

Large, easy-to-read 2¾ in. (70 mm) diameter gauge

Adapters fit engines as small as lawn mowers, chain saws and trimmers.

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

45° universal direct shaft & straight universal direct shaft

Durable case (with removable storage tray)

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

Best kit for the most popular truck/tractor engines for use on Cummins 5.9, Ford Powerstroke 6.0L, 6.4L, 6.7L, 7.3L (both styles), International Navistar 6.9/7.3L, International Navistar 4.5L VT275, 6.0L VT365E, 6.4L MaxxForce 7

Compatible with Repair and Replace on Cummins V6, V8, V12, 855, 5.9L, Detroit Diesel 53, 71, 92, 110, 149, V53, V71 with low or high clamp inj. hold down

Compatible with Repair and Replace on GM Duramax 4.3/5.7/6.2/6.5L/6.6L , CAT D-336, 1674, 1676, 3406, 3408, 3412; PERKINS 4.203, 4.236, 4.248, 6.354, 8.540

Compatible with Repair and Replace for Mercedes 12MM, 18MM, CASE, DEER, MACK, PERKINS, ONAN, Allis-Chalmers, + more, see list product details

Dual scale 80 mm diameter Liquid Filled Gauge 0 - 1000 Lb/In and 0 - 70 bar, 14.5" long hose. Built in Check valve

【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.

Smart Digital Gauge: Clear and accurate data showed in backlight display, with 4 different kinds of numerical units in PSI, KPA, Bar, and KG/CM², easy to control with buttons.

Scope of Application: Engine cylinder compression test tool kit could be used on cars, trucks, ships, ATVs, UTVs, RVs, motorcycles, snowmobiles, boats, off road vehicles, etc.

Quick Release Valve Design: Compression tester with release valve desgin could offer single-handed operation inflation and deflation.

Accurate Measurement: Digital compression gauge has 0.5 display resolution instead of normal 5PSI display resolution compression tester.

ALL-IN-ONE COMPRESSION TESTER KIT: 1x digital gauge, 1x extension hose, 1x straight push-on connectors, 1 x angled push-on connectors, 4x brass adapters with metric male fittings & O-rings: M10, M12, M14, M18.

【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

【Easy and Safe to Use】: first, remove the fuel pump and fuel-injection fuses, disconnect the main wire to the coil and spark plug wires, and remove spark plugs; And then start the threaded end of the compression gauge in a spark plug hole by hand; Last, turn the ignition on, depress the throttle, and crank the engine four revolutions to get accurate data

Note: please make sure that all parts are well installed before proceeding to the cylinder pressure test; Do NOT touch any of the spark plug tester or any part of the test units when the ignition is on, switch off the engine and take out the key each time before you touch them; If any other questions on this product, please don't hesitate to contact us, we are always glad to help

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.

RELIABLE: STABLE QUALITY TESTER GAUGE --- Max 300PSI or 20BAR dual pressure units with easy to read colored and large dial, acrylic glass gauge cover with anti-scratch coating and metal protective cover for outstanding shock-absorption performance. Build-in check valve with pressure-maintaining function, ensure the gauge gets max pressure at the spark plug during compression.

WARRANTY: WORRY FREE SHOPPING SERVICE --- If you aren't satisfied with your purchase, contact us through our email at any time you want, and we'll issue you a refund, to ensure you have a nice shopping experience in our store. A002BK