we’ve put together a collection of the best Leak Down Testers that are currently available on the market. To help you find the perfect Leak Down Tester among a wide variety of options, we constantly update our collection with new and trending models.

10 Best Leak Down Testers

Based on dozens of customer reviews and ratings, the followings are the top 10 best-selling Leak Down Testers:

# Preview Product Price
1 OTC 5609 Cylinder Leakage Tester Kit , black OTC 5609 Cylinder Leakage Tester Kit , black $83.46 View Product
2 Cylinder Leak Down Tester,Compression Test kit - Engine Cylinder Dual Gauge Leakdown Tester kit Diagnostics Tool. Cylinder Leak Down Tester,Compression Test kit – Engine Cylinder Dual Gauge Leakdown Tester kit… $34.97 View Product
3 CHEINAUTO Cylinder Leak Down Tester Engine Compression Diagnosis Tester Kit Dual Pressure Gauges Engine Compression Leakdown Detector Leakage Test Set for Gasoline Engine CHEINAUTO Cylinder Leak Down Tester Engine Compression Diagnosis Tester Kit Dual Pressure Gauges… $29.99 View Product
4 Lang Tools CLT-2 100 PSI Cylinder Leakage Tester with 2 Gauges, One Size Lang Tools CLT-2 100 PSI Cylinder Leakage Tester with 2 Gauges, One Size $91.59 View Product
5 JoyFans Cylinder Leak Down Tester Kit, Tu-21 Small Engine Combustion Leakdown Detector with Compression Gauge Spark Plug Adapters for Pressure Leakage Test on Automotive Motorcycle Car Blue JoyFans Cylinder Leak Down Tester Kit, Tu-21 Small Engine Combustion Leakdown Detector with… $30.98 View Product
6 YSTOOL Cylinder Leak Down Tester Automotive Kit Gasoline Engine Compression Dual Gauge Leakdown Detector Tool Set for Pressure Check & Leakage Rate Test with Extension Rod Blue YSTOOL Cylinder Leak Down Tester Automotive Kit Gasoline Engine Compression Dual Gauge Leakdown… $64.99 View Product
7 New Leak Down Tester Tu-21 Engine Cylinder Leak Tester Leakage Detector Engine Compression Tester Gauges Set New Leak Down Tester Tu-21 Engine Cylinder Leak Tester Leakage Detector Engine Compression Tester… $33.99 View Product
8 HFS(R Cylinder Leak Detector,Engine Compression Diagnosis Test Kit,Cylinder Leakage Leakdown Leak Detector Engine Compression Tester for Piston Ring, Valve, Head Gasket HFS(R Cylinder Leak Detector,Engine Compression Diagnosis Test Kit,Cylinder Leakage Leakdown Leak… $29.99 View Product
9 ATD Tools 5573A 2-Gauge Cylinder Leakage Tester ATD Tools 5573A 2-Gauge Cylinder Leakage Tester $87.80 View Product
10 FAERSI Cylinder Leak Detector - Engine Compression Diagnosis Tester Kit - Cylinder Leakage Pressure Detector Test Set for Piston Ring, Valve, Head Gasket FAERSI Cylinder Leak Detector – Engine Compression Diagnosis Tester Kit – Cylinder Leakage Pressure… $32.98 View Product

Top Rated Leak Down Tester Reviews

Since we’ve mentioned 10 different models of Leak Down Testers on the above list, it may be difficult for you to find the right one for your needs. This is why we listed the key features of each of these Leak Down Testers below:

1

OTC 5609 Cylinder Leakage Tester Kit , black
OTC 5609 Cylinder Leakage Tester Kit , black

$83.46
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Product Highlights:

  • 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
  • Rugged, blow molded storage case with removable lid keeps components organized and protected when not in use
  • Includes detailed instruction chart
2

Cylinder Leak Down Tester,Compression Test kit - Engine Cylinder Dual Gauge Leakdown Tester kit Diagnostics Tool.
Cylinder Leak Down Tester,Compression Test kit – Engine Cylinder Dual Gauge Leakdown Tester kit Diagnostics Tool.

$34.97
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Product Highlights:

  • Cylinder leak down tester,compression test kit -Engine Cylinder Dual Gauge Leakdown Tester kit Diagnostics Tool.
  • 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.
  • PACKAGE CONTENTS: 480mm flexi hose, 12mm and 14mm spark plug adapters, fixed short connector M14 x 26mm, fixed long connector M16 x 26mm, pressure gauge, cylinder leakage gauge, air regulator, instructions, and carrying case.
  • GUARANTEE. We provide our worry-free 24-Hour reply, 30-Day Refund.
3

CHEINAUTO Cylinder Leak Down Tester Engine Compression Diagnosis Tester Kit Dual Pressure Gauges Engine Compression Leakdown Detector Leakage Test Set for Gasoline Engine
CHEINAUTO Cylinder Leak Down Tester Engine Compression Diagnosis Tester Kit Dual Pressure Gauges Engine Compression Leakdown Detector Leakage Test Set for Gasoline Engine

$29.99
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Product Highlights:

  • 【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.
  • 【PROFESSIONAL LEAKAGE DETECT FUNCTION】: This cylinder leak tester checks the amount of leakage in an engine cylinder and helps determine the source. It is designed to detect a variety of common engine faults such as worn piston rings, worn valves, cylinder head cracks and blown head gaskets
  • 【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
Sale4

Lang Tools CLT-2 100 PSI Cylinder Leakage Tester with 2 Gauges, One Size
Lang Tools CLT-2 100 PSI Cylinder Leakage Tester with 2 Gauges, One Size

$91.59
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Product Highlights:

  • Measures the ability of an engine cylinder to hold compressed air- using shop air pressure- and supplements a compression tester
  • Package Dimensions: 5.842 L x 29.972 H x 20.32 W (centimeters)
  • Package Weight : 1.293 kilograms
  • Country of Origin : United States
Sale5

JoyFans Cylinder Leak Down Tester Kit, Tu-21 Small Engine Combustion Leakdown Detector with Compression Gauge Spark Plug Adapters for Pressure Leakage Test on Automotive Motorcycle Car Blue
JoyFans Cylinder Leak Down Tester Kit, Tu-21 Small Engine Combustion Leakdown Detector with Compression Gauge Spark Plug Adapters for Pressure Leakage Test on Automotive Motorcycle Car Blue

$30.98
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Product Highlights:

  • Air-compressed Work: This pneumatic cylinder leak down tester tool needs power support from air compressor (not provided in this package) within the standard shop air supply of 45-100 psi via American air quick plug. Black AR2000 air regulator valve is used for pressure adjustment to ensure that the input compressed air pressure can reach its required value at any time. Push out to use, and back to lock. Turn the knob anticlockwise to switch off before connecting.
  • Dual Detections: Cylinder leak tester tool approves cylinder pressure test for use in conjunction with cylinder leakproofness detection. Reading from dual scale (psi / bar) and 0-100% (Accuracy: ±0.5%), 3-inch gauges have clear dial and accurate pointers for easy view on readings at a glance. Leakdown gauge tool hooks up to air machine can help diagnose and identify common engine faults like worn piston rings, worn valves, cracks in cylinder walls and blown head gaskets.
  • Wide Coverage: It is not just as a compression tester. There is 1pc 10″ rubber hose and 2pcs aluminum adapters besides the combustion leak tester. The cylinder compression tester kit provides all the tools necessary for the compression check and leakage test of engine cylinders on most import and export petrol gasoline makes and models with M10, M12 or M14 spark plugs. Especially good for testing trucks & car models where clearance is minimal. Ideal for mechanics and occasional amateurs.
  • Easy Usage: Install the 10″ hose onto the cylinder pressure gauge manifold through quick disconnect system, M10 or M12 metal adapter can also be added on this basis if necessary. Connect the gauge tester to air compressor and install the other end into spark plug wells. Then open air regulator valve clockwise. Leak can be determined by comparing the normal cylinder pressure of the engine with the measured pressure of certain cylinder, and by the more obvious leakage rate.
  • Considerate Service: We are always glad to offer customers satisfactory shopping experience and after-sales services. We have 30-day free return for the products in good undamaged unused condition after you have received the parcel. Each item offers 12-month quality warranty, and it will be packed well to prevent the breakage during the transportation, please purchase and use with confidence. If you have any questions, please feel free to contact us.
6

YSTOOL Cylinder Leak Down Tester Automotive Kit Gasoline Engine Compression Dual Gauge Leakdown Detector Tool Set for Pressure Check & Leakage Rate Test with Extension Rod Blue
YSTOOL Cylinder Leak Down Tester Automotive Kit Gasoline Engine Compression Dual Gauge Leakdown Detector Tool Set for Pressure Check & Leakage Rate Test with Extension Rod Blue

$64.99
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Product Highlights:

  • The multi-piece leak down tester kit adds 6 new partners to give you more options and a better repair experience. On the basis of a regular set(Set includes 1PC double gauge maniflod, 1PC rubber hose and 2PCS metal adapters), this 3-in-1 cylinder gauge diagnostic tool kit adds 2PCS universal push-on connectors, 2PCS threaded adapters, 1PC M14 extension rod, and 1PC long reaching extension hose. It is a must have for any DIYer or professional mechanic’s tool collection.
  • Convenient dual gauge design allows the leak down tester gauge assembly to directly show you the pressure value and leak rate of the tested cylinders. Ranging from 0-100 psi / 0-7 bar and 0-100%(Accuracy: ±0.5%), easy to read 3″ gauges spend less time to give accurate results. Compression leak tester hooks up to air compressor(provide yourself) can help to detect common engine faults such as worn piston rings, worn valves, cracks in cylinder walls and blown head gaskets.
  • Leak down tester gauge also equipped with 18″ rubber hose, AR2000 pressure regulating valve, American type air plug and aluminum manifold body. Valve knob made of alloy and plastic, used for pressure adjustment of the inputed air from the air compressor. Pull out for use, and push back to lock. This compression tester & cylinder leakage gauge test tool kit fits for any gasoline engines with spark plugs(within 20mm).
  • Constructed with aluminum and rubber, straight / angled type universal push-on connectors don’t need to be threaded into spark plug wells and applicable to almost all petrol engines, and M14 aluminum extension rod can be installed on long / short hose(41-3/4″; 11-1/2″) end to increase distance and facilitate operation. Adapter sizes: M14*1.25, M18*1.5, M10*1, M12*1.25. High quality and deep threads allow the fittings to bite better, antislip and durable.
  • Long & short rubber hoses feature 300 psi W.P and metal adapters at both ends(M14 x 1.25; quick plug)- Ideal for connecting the gauge assembly to the cylinder with the metal fittings. Your satisfaction and recognition are always what we pursue. The product can be returned unconditionally in one month and we also supply 1 year warranty. Welcome to contact us if you have any doubts or you are not satisfied with the product quality in the process of use.
7

New Leak Down Tester Tu-21 Engine Cylinder Leak Tester Leakage Detector Engine Compression Tester Gauges Set
New Leak Down Tester Tu-21 Engine Cylinder Leak Tester Leakage Detector Engine Compression Tester Gauges Set

$33.99
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Product Highlights:

  • 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.
  • Designed to detect a variety of common engine faults. including: Worn piston rings, worn valves, cracks in cylinder walls and blown head gaskets.
  • Suitable for use on any petrol engine with 10, 12 or 14mm spark plugs. Tester checks the amount of leakage in an engine cylinder & helps determine the source. Ideal for testing trucks & late model cars where clearance is minimal.
8

HFS(R Cylinder Leak Detector,Engine Compression Diagnosis Test Kit,Cylinder Leakage Leakdown Leak Detector Engine Compression Tester for Piston Ring, Valve, Head Gasket
HFS(R Cylinder Leak Detector,Engine Compression Diagnosis Test Kit,Cylinder Leakage Leakdown Leak Detector Engine Compression Tester for Piston Ring, Valve, Head Gasket

$29.99
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Product Highlights:

  • [PRODUCT INCLUDE]: 480mm (18.9’’) hose, 12mm (0.47’’) and 14mm (0.55’’) spark plug adapters, fixed short connector, fixed long connector, Gauge (2-1/2’’): 0-100 psi(0-7bar), air regulator, instruction and a carrying case.
  • [FUNCTION]: The cylinder leak detector kit is designed to easily detect a variety of engine faults, including worn piston rings, worn valves, cracked cylinder walls, and blown head gaskets.
  • [DIAGNOSIS]: The engine compression diagnosis tester kit also can check the amount of leakage and locate leaks area in an engine cylinder to help determine the source.
  • [APPLICATION]: Suitable for working on any petrol engine with 12 or 14mm spark plugs, and ideal for testing trucks & late model cars where clearance is minimal.
  • [PACKAGE]: The cylinder leakage pressure detector test set with a ABS plastic blow-molded case can keep the tools organized, safe storage and easy to transport.
Sale9

ATD Tools 5573A 2-Gauge Cylinder Leakage Tester
ATD Tools 5573A 2-Gauge Cylinder Leakage Tester

$87.80
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Product Highlights:

  • 2-gauge design allows for monitoring of input air-line pressure to ensure accurate testing
  • Easy-to-use regulator allows for precise control of input air pressure
  • Helps to pin-point problems indicated by a compression test or cylinder balance test
  • Uses shop air to determine leakage source and the amount of leakage measured in percentage of loss
  • Reducer adapter allows use of any 1/4 inch male quick connect plug
10

FAERSI Cylinder Leak Detector - Engine Compression Diagnosis Tester Kit - Cylinder Leakage Pressure Detector Test Set for Piston Ring, Valve, Head Gasket
FAERSI Cylinder Leak Detector – Engine Compression Diagnosis Tester Kit – Cylinder Leakage Pressure Detector Test Set for Piston Ring, Valve, Head Gasket

$32.98
View Product
Product Highlights:

  • The Cylinder Leak Detector Kit is designed to easily detect a variety of engine faults, including worn piston rings, worn valves, cracked cylinder walls, and blown head gaskets.【Including】12-month WARRANTY, if you have any question, please feel free to contact us.
  • The Engine Compression Diagnosis Tester Kit also can check the amount of leakage and locate leaks area in an engine cylinder to help determine the source.
  • Suitable for work on any petrol engine with 12 or 14mm spark plugs, and ideal for testing trucks & late model cars where clearance is minimal.
  • The cylinder leakage pressure detector test set with a ABS plastic blow-molded case can keep the tools organized, safe storage and easy to transport.
  • Package include: 480mm hose, 12mm and 14mm spark plug adapters, fixed short connector, fixed long connector, Gauge (2-1/2”):0-100 psi(0-7bar), air regulator, instructions and carrying case.

Video Overview

How to use a Leak Down Tester Tool Cylinder Head Leakage Detector

The Leak Down Tester Tool is a handy tool for any back yard mechanic that will be rebuilding and working on engines. Shop Leak Down Tester Tool …

Final Words

So, these are all of the Best Leak Down Testers available on the market. We hope this collection was helpful to find the right Leak Down Tester for the money. However, we recommend checking out the features, benefits, and problems of each of these Leak Down Testers before taking your decision.