Best Accuratediesel in 2026

1/4 Inch OEM Shrader connection fits almost any fuel pressure tester

For years, this has been a very difficult to find adapter

Fuel pressure is very critical on the 6.0L PS - adapter makes checking easy

Engineered to make the task of replacing the ICP on the early (to 9/22/03) 6.0L a little easier

Also fits all 7.3L ICP Sensors (Replacement style)

Also perfect for replacing 6.0L oil pressure sensors

Save money and time by back-flushing your 6.0L oil cooler rather than replacing it

Prevent high oil temperatures which cause expensive fuel system and engine failures

Oil temperature more than 15 degrees above coolant temperature indicates oil cooler should be serviced

OTC's Cylinder Leakage Tester Kit quickly diagnoses internal engine problems like bad rings, valves, and leaking head gaskets and comes complete with adapters for most applications

Dual 2-1/2 inch gauges read 0-100 psi and 0-700 kPa and feature chrome bezels and rugged protective outer boots

Kit features a pressure regulated manifold with quick couplers, 24 inch long 14mm flex hose, and 10 mm, 12 mm, and 18 mm thread adapters

Fuel pressure take off fitting: AN6 Male to -6 Female with 1/8" NPT Gauge/Gage Port,the thread size of the 6AN is 9/16-18UNF.

Sealing: The AN thread of the flare is sealed by a 37 degree angle and the NPT is sealed with a 60 degree tapered.It is highly recommended to use sealant or PTFE (polytetrafluoroethylene tape) at the NPT port.

Material: Made of 6061-T6 aluminium alloy.

[PRESSURE GAUGE]: Test fuel pump output pressure to 10PSI. Read engine vacuum to 28" HG.

[KIT INCLUDES]: Comes with large 3-1/2" diameter gauge and 24" long vacuum hose.

[ADAPTERS]: Adapters suits for most vehicles.

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

Accurate Measurement: Digital compression gauge has a backlit display with a resolution of 0.5PSI instead of 5PSI. Four different kinds of numerical units in PSI, KPA, Bar, KG/CM², easy to control with buttons.

Quick Release Valve Design: Fuel pressure tester with release valve design could offer single-handed operation inflation and deflation, helping to release pressure safely and recovery fuel easily.

Universal Design: The adapters, hoses and fittings included in fuel pressure gauge cover most Gas Engine Cars, Motorcycles, Trucks, SUVs, ATVs, UTVs, RVs with modern Schrader test port fuel injection systems. ( Does not compatible with Bosch, CIS Jetronic, TB System on GM vehicles. )

Quickly And Easily Test The Ethanol Content Of Your E-85

Environmentally Friendly

【Product Name】Stainless Steel Liquid Filled Pressure Gauge Wog

【Size】1/8" NPT；1.5" Dial Face

【Installation method】Back Mount

Fuel injector testing requires precision equipment and this vehicle powered tool fills that requirement

It enables you to check cylinder balance by firing individual injectors at 1/2-second increments

Three different ranges 1 pulse of 500 milliseconds 50 pulses of 10 milliseconds and 100 pulses of 5 milliseconds

Made to be the most reliable tools in the market today

Tool solutions for most all situations

Built to exceed tool standards

Professional Tester Kit: Fuel Pump Pressure & VacuumTester Gauge Kit, Carburetor Test enables testing of the fuel delivery pressure to the engine to check for worn or defective parts; Diagnose leaking valves, incorrect timing, leaky intake manifolds, and clogged mufflers. Fuel pump operating pressures up to 10 PSI (0.7 Bar), Pressure gauge 0-28 IN-Hg (0-70 cm-HG) vacuum and 0-10 PSI (0-0.7 kg/cm²) pressure

Applications: This tester will test fuel pump pressure and all vacuum operated devices, 4 tests can be performed – Fuel pump pressure, fuel pump vacuum, carburetor intake manifold, and vacuum test

Easy-to-use: Instruction manual included; Includes a variety of adapters ideal for most vehicles; 4-inch (10.2cm) diameter pressure gauge with color-coded measurement scales, 1.2-inch (3cm) thickness with rubber side notches, easy to read and grip; Extra-long rubber hose and 14mm/18mm manifold adapter; Rubber hose 40 PSI (2.8 Bar) maximum working pressure

ANTI-CORROSION - This fuel line T-fitting adapter is made from 304 stainless steel that prevents Corrosion.

LEAK-FREE - The barbed design increase the sealing of adapter and fuel line and The two hose clamps are for installation in tight-fittings and secure the vehicle’s fuel line to the barbed fittings for a leak-free connection.

FUNCTION - Fuel line fuel pressure barbed push lock t-fitting adapter allows users to install a fuel pressure sensor to a 3/8 In inner diameter fuel line,T-fittings allows you to tee off your vehicle,s fuel line for accurate fuel pressure readings directly from the source.Protect your engine!

This injector tester with 41.5cm/ 16.3 inches test lead can work with any fuel pressure tester. Please NOTE: Gasoline car only, NOT the diesel engine

4 MODES- Large LED display with 4 pulse modes- Short/ Medium/ Long/ Continuous modes help to identify good or bad injector.

DIAGNOSE INJECTOR PROBLEMS- you can use it to test each injector individually to help identifing stuck, leaking or burnt-out conditions. It works with engine off and pulse timer may be used with fuel pressure gauge.

The original head gasket tester kit of the reputable brand “RELD”

Produced in the European Union. The efficiency is 99.9%.

Fast and convenient. Most importantly you can check whether the head gasket of your car is fully functional without visiting the mechanic.

For measuring the low pressure in natural gas or LP gas pressure across appliance manifolds

2-1/2" dial size, 40" Rubber Hose, 1/8"NPT male brass fitting, protected and fit in a mould plastic box

Pressure range: 0-35"W.C./Ounces per square inch, 2.5 to 4' W.C. for natural gas, 10 to 12" W.C. for LP gas

【Size】 ID: 3/8" (10mm), OD: 2/3 " (17mm), Length: 10FT.

【Premium Material】 Premium nylon fiber wire materials, long service life, wear resistance and high temperature resistance, perfect racing accessories for fuel injection.

【Strong and Durable】 Nylon Braided Fuel Hose Working Temperature Range: -40°F to +300°F, Maximum Working pressure: 290 PSI, Burst pressure: 1160 PSI. PROFESSIONAL OIL RESISTANT DN8MM 20BAR MAXIMUM W.P.

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.The included adapters, hoses and fittings cover all fuel injection systems and most cars and trucks world wide!

FORD ADAPTERS INCLUDED ---Come with 3 adapters with hoses fit with most of the Ford vehicles.

PARAMETER---Double Scale Gauge:0-10bar,0-140psi.Three size adapters :6.30mm(SAE 1/4)7.89mm(SAE 5/16)9.49mm(SAE 3/8).

The engine oil pressure tester kit is used to diagnose and test the engine oil pressure value, to check whether it is normal. Prevent engine failure due to lack of oil. And with this best in class tools, you can get a definite pressure value well without relying on the dashboard light.

There are 10 types of thread adapters are suitable for most cars, motorcycles, boats and other vehicles with gasoline and small diesel engines. As long as the adapters can match with your engine and oil pressure does not exceed 140 PSI. The 10 adapters are marked with number, you can choose the right one very easy.

The pressure gauge uses metal gauge head with shockproof rubber cover, 3" big dial with clear dual scale range 0 to 140 PSI and 0 to 10 Bar. Compare to a large range, this oil pressure gauge is easy to read about 1-2 Bar with a short range. There are a straight quick coupler and a elbow one in the case, you can choose it according to the location of the engine oil pressure test port.

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.

Features 8mm (5/16") Barbed Fittings, 1/8-27 NPT Female Thread Port for Fuel Pressure Gauge Sensor & 2 Hose Clamps to Secure Fuel Line to T-Fitting

Packing Including: 2 Brass Barbed Fittings 5/16"(8mm) ，2 stainless steel clamp with handle and Teflon tape

Fuel Line Fuel Pressure T-Fitting Adapter Allows Users to Install a Fuel Pressure Sensor to the Fuel Line

This Fuel Pressure Tester is designed for fuel injected systems

Measures the available fuel pressure with engine running on or off

Features 6-ft hose to aid reaching any test point

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

💡 Comprehensive Kit, Incredible Savings: Say goodbye to expensive individual purchases! Our probe tester comes with a wide range of accessories at a fraction of the cost. You'll save big while enjoying the convenience of having everything you need in one comprehensive kit.

🚗 Suitable for All Vehicles: Whether you're working on cars, motorcycles, trucks, or even ships and tractors, our tester's DC 6-40v compatibility makes it the ideal solution for diagnosing electrical systems in any vehicle.

🔒 Safety First: Your safety is paramount to us. The circuit tester features a reverse connection protection circuit, providing peace of mind during positive and negative line judgment. Plus, the built-in 10 amp circuit breaker ensures your equipment is safeguarded from excessive current.

【Product Name】Gas Test Pressure gauges

【Size】1/8"NPT, 3/4" FNPT

【Temperature Range】0-55℃/32-131℉【Pressure range】0-100 Psi

Actron's CP7803 Vacuum and Fuel Pressure Tester Kit is a great way to fine tune carburetion and timing for peak performance and maximum fuel economy

Use to test fuel pump pressure, mechanical condition of the engine, vacuum control system function, and much more

Use to find: intake manifold leaks, blown manifold and head gaskets, worn piston rings, burned valves, and leaking vacuum lines on conventional and computer-controlled vehicles

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

【 Specialty Tool 】 EWK 42mm 6 Sided water sensor wrench is designed to remove and install the water sensor located on the fuel filter of 2012 and newer 6.6L Duramax diesel engines. Also fits 2013-Up Ram Trucks with 6.7 Cummins engine. Replaces OEM part number 34900.

【 Exclusive Design 】 Made specifically for eliminating the risk of damage to the WIF Sensor from tools like pliers and adjustable wrenches that easily round off the factory sensor.

【 Easy Operation 】 Water in fuel sensor located in the bottom of the filter must be removed and reused in the new filter. Thin-wall construction with vinyl grip enables servicing the water sensor without damage to filter.