20 Best Leakdown Tester [2024]

Are you looking for the best leakdown tester? Based on expert reviews, we ranked them. We've listed our top-ranked picks, including the top-selling leakdown tester.

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# Preview Product
1 OTC 5609 Cylinder Leakage Tester Kit , black OTC 5609 Cylinder Leakage Tester Kit , black
2 Cylinder Leak Down Tester,Compression Test kit - Engine Cylinder Dual Gauge Leakdown Tester kit... Cylinder Leak Down Tester,Compression Test kit - Engine Cylinder Dual Gauge Leakdown Tester kit...
3 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
4 Prokomon Cylinder Leak Down Tester,Gasoline Engine Cylinder Dual Gauge Leakdown Compression Tester... Prokomon Cylinder Leak Down Tester,Gasoline Engine Cylinder Dual Gauge Leakdown Compression...
5 FAERSI Cylinder Leak Detector - Engine Compression Diagnosis Tester Kit - Cylinder Leakage Pressure... FAERSI Cylinder Leak Detector - Engine Compression Diagnosis Tester Kit - Cylinder Leakage...
6 JIFETOR Cylinder Leak Down Tester Kit, Professional Dual Pressure Gauges Engine Compression Leakdown... JIFETOR Cylinder Leak Down Tester Kit, Professional Dual Pressure Gauges Engine Compression...
7 New Leak Down Tester Tu-21 Engine Cylinder Leak Tester Leakage Detector Engine Compression Tester... New Leak Down Tester Tu-21 Engine Cylinder Leak Tester Leakage Detector Engine Compression Tester...
8 CHEINAUTO Cylinder Leak Down Tester Engine Compression Diagnosis Tester Kit Dual Pressure Gauges... CHEINAUTO Cylinder Leak Down Tester Engine Compression Diagnosis Tester Kit Dual Pressure Gauges...
9 BTSHUB Tu-21 Cylinder Leak Down Tester Kit Dual Pressure Gauges Gasoline Engine Leakage Detector... BTSHUB Tu-21 Cylinder Leak Down Tester Kit Dual Pressure Gauges Gasoline Engine Leakage Detector...
10 AutoLine Pro Automotive Smoke Machine Leak Detector EVAP Vacuum Diagnostic Tester | Shop Series |... AutoLine Pro Automotive Smoke Machine Leak Detector EVAP Vacuum Diagnostic Tester | Shop Series |...
11 WINMAX TOOLS AUTOMOTIVE Generic Tu-21 Cylinder Leakage Leakdown Leak Detector Engine Compression... WINMAX TOOLS AUTOMOTIVE Generic Tu-21 Cylinder Leakage Leakdown Leak Detector Engine Compression...
12 Star (STACLT-2PB) Cylinder Leakage Tester Star (STACLT-2PB) Cylinder Leakage Tester
13 MengYoo New Generation Cylinder Leak Down Tester,Engine Cylinder Dual Gauge Leakdown Tester kit... MengYoo New Generation Cylinder Leak Down Tester,Engine Cylinder Dual Gauge Leakdown Tester kit...
14 Performance Tool W89729 Leak-Down Test Kit (Not a compression Tester) , black Performance Tool W89729 Leak-Down Test Kit (Not a compression Tester) , black
15 Proform 66839 Dual Gauge Leakdown Tester Proform 66839 Dual Gauge Leakdown Tester
16 Block Tester BT-500 Combustion Leak Test Kit - Made in USA Block Tester BT-500 Combustion Leak Test Kit - Made in USA
17 Longacre® 52-73014 Digital Engine Leak Down Tester Longacre® 52-73014 Digital Engine Leak Down Tester
18 23andMe Health + Ancestry Service: Personal Genetic DNA Test Including Health Predispositions,... 23andMe Health + Ancestry Service: Personal Genetic DNA Test Including Health Predispositions,...
19 Automotive Engine Cylinder Leak Leakdown Compression Tester Detector Kit w/Gauge Automotive Engine Cylinder Leak Leakdown Compression Tester Detector Kit w/Gauge
20 Mityvac 5530 Professional Compression Tester Kit, Black Mityvac 5530 Professional Compression Tester Kit, Black
SaleBestseller No. 1
OTC 5609 Cylinder Leakage Tester Kit , black
  • OTC's Cylinder Leakage Tester Kit quickly diagnoses internal engine problems like bad rings, valves, and leaking head gaskets and comes complete with...
  • 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
Bestseller No. 2
Cylinder Leak Down Tester,Compression Test kit - Engine Cylinder Dual Gauge Leakdown Tester kit...
  • Cylinder leak down tester,compression test kit -Engine Cylinder Dual Gauge Leakdown Tester kit Diagnostics Tool. Suitable for any gasoline engine with...
  • UNIVERSAL FITMENT. Suits all local and imported cars and trucks, ideal for testing trucks and car models where clearance is minimal. check the...
  • 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...
  • PACKAGE CONTENTS: 480mm flexi hose, 10mm and 12mm spark plug adapters, fixed short connector M14(14mm Brass Coated Aluminum Adapter) x 26mm, fixed...
  • GUARANTEE. We provide our worry-free 24-Hour reply, 30-Day Refund.
Bestseller No. 3
Lang Tools CLT-2 100 PSI Cylinder Leakage Tester with 2 Gauges, One Size
  • 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
Bestseller No. 4
Prokomon Cylinder Leak Down Tester,Gasoline Engine Cylinder Dual Gauge Leakdown Compression Tester...
  • ◇ Cylinder Leak Down Tester : The set is designed to detect a variety of common engine faults (Including: worn piston rings, worn valves, cracks in...
  • ◇ Working Principle : Once the leakage tester has been connected to one of the cylinders, compressed air (45-100psi) is fed into that particular...
  • ◇ Dual Pressure Gauges : The pressure gauge with scale range 0-100psi/0-7bar, and the leakage gauge with color coded range marked with HIGH MODERATE...
  • ◇ Package Contents : 480mm flexi hose, 10mm and 12mm spark plug adapters, fixed short connector M14(14mm Brass Coated Aluminum Adapter) x 26mm,...
  • ◇ Prokomon : Please unscrew the adapter after the cylinder is cooled to prevent the hose from softening and not driving the adapter to rotate...
Bestseller No. 5
FAERSI Cylinder Leak Detector - Engine Compression Diagnosis Tester Kit - Cylinder Leakage Pressure...
  • The Cylinder Leak Detector Kit is designed to easily detect a variety of engine faults, including worn piston rings, worn valves, cracked cylinder...
  • 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...
  • 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...
Bestseller No. 6
JIFETOR Cylinder Leak Down Tester Kit, Professional Dual Pressure Gauges Engine Compression Leakdown...
  • ENGINE CYLINDER LEAKAGE TEST: JIFETOR cylinder leak gauge set is designed to detect a variety of common engine faults including: worn piston rings,...
  • WORKING PRINCIPLE OF LEAKDOWN DETECTOR: Once the leakage tester has been connected to one of the cylinders, compressed air (45-100psi) is fed into...
  • DUAL PRESSURE GAUGES ASSEMBLY: There are American style air plug, pressure regulating valve, aluminum manifold body, cylinder pressure gauge, cylinder...
  • 3 ADAPTERS AND OTHER PARTS: There are 3 sizes adapters brass coated aluminum 14mm(fixed on a 10" long hose), aluminum 12mm and 10mm (both can be...
  • SATISFACTORY CUSTOMER SERVICE: Please unscrew the adapter after the cylinder is cooled to prevent the hose from softening and not driving the adapter...
SaleBestseller No. 7
New Leak Down Tester Tu-21 Engine Cylinder Leak Tester Leakage Detector Engine Compression Tester...
  • 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,...
  • 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...
  • 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...
Bestseller No. 8
CHEINAUTO Cylinder Leak Down Tester Engine Compression Diagnosis Tester Kit Dual Pressure Gauges...
  • 【UNIVERSAL FITMENT】Suits all local and imported cars and trucks, ideal for testing trucks and car models where clearance is minimal. check the...
  • 【FEATURE】Designed to detect a variety of common engine faults such as worn piston rings, cylinder head cracks, worn valves and blown head gaskets....
  • 【WORKING PRINCIPLE OF LEAKDOWN DETECTOR】 Once the leakage tester has been connected to one of the cylinders, compressed air (45-100psi) is fed...
  • 【PROFESSIONAL LEAKAGE DETECT FUNCTION】: This cylinder leak tester checks the amount of leakage in an engine cylinder and helps determine the...
  • 【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...
Bestseller No. 9
BTSHUB Tu-21 Cylinder Leak Down Tester Kit Dual Pressure Gauges Gasoline Engine Leakage Detector...
  • The cylinder leakage test gauge Kit is designed to detect common engine faults including: worn piston rings, worn valves, cracks in cylinder walls and...
  • Available with either single gauge shows % of cylinder leakage, or twin gauge manifold show cylinder leakage and cylinder pressure. Suitable for any...
  • Dual pressure gauges: 1 Cylinder pressure gauge, 1 Cylinder leakage gauge. Features a 19" long rubber nylon resin hose with quick coupler on the...
  • 3 sizes adapters: Brass coated aluminum adapters, 14mm(fixed on a 10" long hose), aluminum 12mm and 10mm (both can be connected to 14mm adapter), help...
  • Ideal for testing trucks & late model cars where clearance is minimal. Please note: This cylinder leak tester is not suitable for shallow cylinder.
Bestseller No. 10
AutoLine Pro Automotive Smoke Machine Leak Detector EVAP Vacuum Diagnostic Tester | Shop Series |...
  • 【 HIGH PERFORMANCE, PREMIUM BUILD】Made in the USA. Solid Thick Metal Construction for durability. Equipped with our brand new AutoLine Pro Ceramic...
  • 【 DIAGNOSE ALL TYPES OF LEAKS WITH ADAPTERS】Consistently smoke test EVAP systems, Vacuum leaks, low pressure Turbo leaks, Intake Manifolds,...
  • 【 PRECISE AND SAFE】Engineered 100% safe for all vehicles. Thick Smoke output detects even the smallest leaks. Every unit Is backed by 1 YEAR FULL...
  • 【 HOW DOES IT WORK?】(1) Fill with the included OEM Approved Smoke Fluid. The kit operates with the included OEM Approved Fluid or you may use your...
  • 【 FAST, FREE, & SAFE DELIVERY】ALL orders shipped out same day via Expedited Shipping Priority Mail (for same day, order before 12pm PST / 3pm...
Bestseller No. 11
WINMAX TOOLS AUTOMOTIVE Generic Tu-21 Cylinder Leakage Leakdown Leak Detector Engine Compression...
  • Designed to detect a variety of common engine faults including: Worn piston rings, worn valves, cracks in cylinder walls and blown head gaskets.
  • Available with either single gauge or twin gauge manifold. Gauge(s) show % of cylinder leakage or cylinder leakage and cylinder pressure.
  • Suitable for use on any petrol engine with 12 and 14mm spark plugs.
  • TU-21 Cylinder Leak Detector Tester checks the amount of leakage in an engine cylinder & helps determine the source. Best used when comparing a...
  • Pinpoint the source of compression problems by doing cylinder leak-down tests Works with domestic and import engines Input and leakage gauges with...
Bestseller No. 13
MengYoo New Generation Cylinder Leak Down Tester,Engine Cylinder Dual Gauge Leakdown Tester kit...
  • ❥(^_-)Suits all local and imported cars and trucks, ideal for testing trucks and car models where clearance is minimal. Designed to detect a variety...
  • ❥(^_-)Equipped with 2-1/2" input pressure gauge for proper leakage test setup and accurate results.
  • ❥(^_-)Available with either single gauge or twin gauge manifold. Gauges show % of cylinder leakage or cylinder leakage and cylinder pressure.
  • ❥(^_-)Content: 1 x Cylinder Leak Detector ,1 x Instruction manual.
Bestseller No. 14
Performance Tool W89729 Leak-Down Test Kit (Not a compression Tester) , black
  • Pressure regulated manifold and quick couplers
  • 12 millimeter and 14 millimeter thread adapters
  • Helps identify causes of low cylinder compression of internal engine problems such as bad rings valves and leaking head gaskets
  • Blow molded hard case for storage
  • Dual 2-1/2 inch gauges with protective outer shell
Bestseller No. 15
Proform 66839 Dual Gauge Leakdown Tester
  • Domestic Shipping:This item is available for shipping in t, Item Weight:1.65 pounds, Item Model Number:66839, Brand:ProForm
  • Shipping Weight:1.65 pounds, California Residents:Click here for Proposition 65 warning, Oem Part Number:66839
  • International Shipping:This item can be shipped to select count, Product Dimensions:120 x 132 x 48 inches, Manufacturer Part Number:66839, Mpn:66839
  • Fit type: Vehicle Specific
  • Package Dimension : 3.555 centimeters L x 24.384 centimeters W x 24.637 centimeters H
SaleBestseller No. 16
Block Tester BT-500 Combustion Leak Test Kit - Made in USA
  • Complete Combustion Leak Test Kit - Includes Fluid - Nothing More to Buy
  • When Fluid Turns From BLUE to YELLOW Combustion Leak is Present
  • Tests in seconds for combustion leaks caused by: Blown Head Gasket (BHG) Cracked Head or Block Pulled Bolts or Studs Warped Sealing Surfaces
  • Quality Tool Made in USA for over 45 years with Limited Lifetime Warranty
  • Packaged in OEM white box
Bestseller No. 17
Longacre® 52-73014 Digital Engine Leak Down Tester
  • Check ring seals, valves, and even head gaskets
  • Much more accurate than traditional testers - Reads critical leak down to .5% (1/2 of 1%)
  • Control inlet valve and helps to avoid extra shock to gauges when air is turned on, allowing more accurate readings, very easy to use and longer gauge...
  • Rugged design features rubber bumpers to protect gauges
  • Silver carrying case included
SaleBestseller No. 18
23andMe Health + Ancestry Service: Personal Genetic DNA Test Including Health Predispositions,...
  • IMPORTANT: There is a lot to consider with genetic testing. Please review important information about Carrier Status* and Genetic Health Risk*...
  • WHAT YOU GET: At-home DNA test kit. Access to Health + Ancestry Service that can help give you a more complete picture of your health with insights...
  • HEALTH FEATURES: Our personalized health reports use science-backed data to show how your DNA can affect your likelihood of developing certain health...
  • SIMPLE & EASY: Genetic testing in 3 simple steps. No blood, no needles. Our home-based saliva collection kit is all you need. We have made the process...
  • PRIVATE AND PROTECTED: Know that you are in control of your DNA. Discovery should never come at the expense of privacy. Your data is encrypted,...
Bestseller No. 19
Automotive Engine Cylinder Leak Leakdown Compression Tester Detector Kit w/Gauge
  • 1. This leak down gauge reads 0 to 100% leakage in 5% increments 2. Input and leakage gauges with rubberized housing 3. Ideal for testing trucks &...
Bestseller No. 20
Mityvac 5530 Professional Compression Tester Kit, Black
  • 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

Having trouble finding a great leakdown tester?

This problem is well understood by us because we have gone through the entire leakdown tester research process ourselves, which is why we have put together a comprehensive list of the best leakdown testers available in the market today.

After hours of searching and using all the models on the market, we have found the best leakdown tester for 2023. See our ranking below!

How Do You Buy The Best Leakdown Tester?

Do you get stressed out thinking about shopping for a great leakdown tester? Do doubts keep creeping into your mind?

We understand, because we’ve already gone through the whole process of researching leakdown tester, which is why we have assembled a comprehensive list of the greatest leakdown tester available in the current market. We’ve also come up with a list of questions that you probably have yourself.

John Harvards has done the best we can with our thoughts and recommendations, but it’s still crucial that you do thorough research on your own for leakdown tester that you consider buying. Your questions might include the following:

  • Is it worth buying an leakdown tester?
  • What benefits are there with buying an leakdown tester?
  • What factors deserve consideration when shopping for an effective leakdown tester?
  • Why is it crucial to invest in any leakdown tester, much less the best one?
  • Which leakdown tester are good in the current market?
  • Where can you find information like this about leakdown tester?

We’re convinced that you likely have far more questions than just these regarding leakdown tester, and the only real way to satisfy your need for knowledge is to get information from as many reputable online sources as you possibly can.

Potential sources can include buying guides for leakdown tester, rating websites, word-of-mouth testimonials, online forums, and product reviews. Thorough and mindful research is crucial to making sure you get your hands on the best-possible leakdown tester. Make sure that you are only using trustworthy and credible websites and sources.

John Harvards provides an leakdown tester buying guide, and the information is totally objective and authentic. We employ both AI and big data in proofreading the collected information.

How did we create this buying guide? We did it using a custom-created selection of algorithms that lets us manifest a top-10 list of the best available leakdown tester currently available on the market.

This technology we use to assemble our list depends on a variety of factors, including but not limited to the following:

  1. Brand Value: Every brand of leakdown tester has a value all its own. Most brands offer some sort of unique selling proposition that’s supposed to bring something different to the table than their competitors.
  2. Features: What bells and whistles matter for an leakdown tester?
  3. Specifications: How powerful they are can be measured.
  4. Product Value: This simply is how much bang for the buck you get from your leakdown tester.
  5. Customer Ratings: Number ratings grade leakdown tester objectively.
  6. Customer Reviews: Closely related to ratings, these paragraphs give you first-hand and detailed information from real-world users about their leakdown tester.
  7. Product Quality: You don’t always get what you pay for with an leakdown tester, sometimes less, and sometimes more.
  8. Product Reliability: How sturdy and durable an leakdown tester is should be an indication of how long it will work out for you.

John Harvards always remembers that maintaining leakdown tester information to stay current is a top priority, which is why we are constantly updating our websites. Learn more about us using online sources.

If you think that anything we present here regarding leakdown tester is irrelevant, incorrect, misleading, or erroneous, then please let us know promptly!

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FAQ:

Q: How do you perform a leak down test?

A: Listen for air coming from the oil fill hole: Remove the oil fill cap. … Listen to the air intake: Air coming out of the intake indicates an intake valve is leaking. Listen to the exhaust pipe: If you hear air coming out of the exhaust pipe,an exhaust valve is leaking. Look for bubbles in the coolant: Remove the radiator cap. …

Q: What does a leak down test tell you?

A: If you remove the oil cap and hear a lot of air escaping,the rings are worn and that’s where your compression loss is. If you hear it coming out of the intake,the intake valve (s) isn’t sealing. If you hear it coming out the tail pipe,the exhaust valve (s) is leaking.

Q: What is the best leak detector?

A: Flo by Moen Smart Water Detector Honeywell Home Water Leak and Freeze Detector Phyn Plus smart water assistant+Shutoff Roost Smart Water Leak and Freeze Detector Flo by Moen Smart Water Shutoff Waxman LeakSmart Wireless&Waterproof Leak Detector Sensor Sinopé Sedna water-leak protection kit Fibaro Flood Sensor SmartThings Water Leak Sensor

Q: How to make a boost leak tester?

A: – Test Evap/Vacuum leaks, Easy to use, … – Made In USA,Quality made – Great tool to have for automotive leaks, … – Fraction of the cost as commerical Evap …