Best Dorman Fuel Leak Detectors in 2026

【Widely Used Adapter】Make leak testing with a smoke machine a whole lot easier! It's designed to fit even large intakes on V8 vehicles.

【How Does it Work?】Fit the cone into diagnostic site (such as the intake boot/duct or exhaust tailpipe) and inject smoke with a smoke machine to test for system leaks

【NEW LARGER SIZE!】Will fit almost all exhaust tips and intake boots. Made for larger openings with a diameter up to 4.2 inches (107mm) and as small as 1 inch (26mm)

【MULTIPLE TEST FUNCTIONS】The smoke machine automotive leak detector supported crankcase system test, intake system test, car sealing test, fuel tank system test, turbo leaks test, various pipe fittings test, exhaust system test, EVAP system test. (Note: Not applicable to air conditioning system piping).

【TWO-MODE】Air mode and smoke mode, the smoke detector built-in air pump and smoke generator, so it does not rely on additional air machine. Professional automobile smoke leak detection tool, using visible smoke to quickly locate the leak hole. The smoke can be produced within 30 seconds, dramatically reducing diagnostic time. Perfect for Mobile Automotive Repair!

【SPECIFICATIONS】The leak down detector built-in smoke generator with smoke output value: 0-8 L/min, power supply: 12V Vehicle battery, < 8Amp, output pressure: <1.2 Bar, heating material: mineral oil or baby oil (oil not included).

Compatible with ALL Automotive Smoke Testers

Make leak testing with a smoke machine via larger openings a whole lot easier!

Premium Durable Quality. Automotive Grade.Simply fit the cone into diagnostic site and inject smoke to test for system leaks

Direct replacement - this evaporative emissions system leak detection pump is designed to match the fit and function of the original pump on specified applications

Restores functionality - reliable replacement for an original part that has clogged or failed due to emissions control system damage

Durable construction - this part is made from quality materials to ensure reliable performance and long service life

EASY TO USE: The Smoke Machine Automotive with easy-use function and portable design, can help mechanic produce lots of smoke within 30s to detect the leaks in pipe system (by heating up baby oil). Dramatically reducing diagnostic time.

3 MAIN FUNCTIONS: Air-tightness Check, Evaporating Fuel Leakage Check, and Over-heat & Anti-frost protection. If it exceeds the working limit (Over 167°F) it will power off automatically. The evap smoke machine has its own air pump. It does not rely on other air machine and connect the detector with DC12V battery.

SUPPORTED VARIOUS SYSTEM TEST : Included EVAP System Test, Intake System Test, Exhaust System Test, Fuel Tank System Test and Car Sealing Test. (Note: Not applicable to air conditioning system piping) It can quick to find evap leaks.

【Why Need It】For example: 1. The rupture of the vacuum hose will cause the mixture to be too thick, the idle speed will increase, the hot car will not start well, the engine will surge during acceleration, the fuel consumption will increase significantly, and the exhaust pipe will emit black smoke. 2. Blocking will cause the idle speed to drift, and the idle speed is easy to stall. 3. Air leakage in the vacuum tube will cause the engine to run weakly

【EVAP Detection】American cars that began production in 1996 are equipped with EVAP service ports; in most American cars, the EVAP service port is usually located in the engine compartment, but the EVAP service port of some special models may be located in other locations. Open the plastic cover of the EVAP service port, then use the spool wrench to remove the check valve clockwise, then install the EVAP service port adapter, and introduce smoke from the port into the EVAP leak detection system.

【Wide Testing Range】Built-in air pump,The smoke leak detector can do smoke testing of multiple systems, such as EVAP systems, Intake Systems, Cooling / EGR /Exhaust Systems, Crankcase Systems, Engine Airtightness, Vacuum Leaks, Low Pressure Turbo leaks.Applicable cars, motorcycles, snowmobiles, off-road vehicles, ATVs, light trucks and speedboats boats.

【Why Need It】For example: 1. The rupture of the vacuum hose will cause the mixture to be too thick, the idle speed will increase, the hot car will not start well, the engine will surge during acceleration, the fuel consumption will increase significantly, and the exhaust pipe will emit black smoke. 2. Blocking will cause the idle speed to drift, and the idle speed is easy to stall. 3. Air leakage in the vacuum tube will cause the engine to run weakly

【Built-in Air Pump】Customers do not need to purchase additional air pumps, we use high-quality materials, after many tests, please rest assured to use. You can save more time and money

【EVAP Detection】American cars that began production in 1996 are equipped with EVAP service ports; in most American cars, the EVAP service port is usually located in the engine compartment, but the EVAP service port of some special models may be located in other locations. Open the plastic cover of the EVAP service port, then use the spool wrench to remove the check valve clockwise, then install the EVAP service port adapter, and introduce smoke from the port into the EVAP leak detection system.

【Multi Functions】Tightness Test, Intake System Test, Exhaust System Test, Cooling System and Overheating Protection. Built-in air pump and smoke generator, so it does not rely on other air machine, perfect for Mobile Automotive Repair!

【Fast Smoke Output】The smoke can be produced within 10 seconds, and with stable and large amount of smoke output after switch-on (by heating up Baby Oil). Dramatically reducing diagnostic time.

【Convenient Design】Comes with a hook allows you to hang it on your hood latch, the conical adapter will fit most intakes, and the 1.5m smoke hose can help reach and connect perfectly, not harm the EVAP system.

【Excellent Quality】AUTOOL Easy Intake Adapter is made of high-quality silicone, with strong sealing, softness, high temperature resistance, good elasticity, and tear resistance.All Easy Intake Adapters have undergone multiple simulation tests，ensure can detect intake and exhaust leakage more quickly and accurately

【Fast and Convenient】AUTOOL Easy intake adapter is an inflatable block-shaped airbag with a pressurized steam channel, which is used for intake and exhaust smoke test. The wall thickness is 1.5mm and its diameter can be expanded to 121mm. It helps technicians to quickly and easily test the entire intake or exhaust system，Note: Please make sure the intake/exhaust diameter is bigger than 2".

【Humanized Design】Compared to traditional,AUTOOL Easy intake adapter with a steel ring removed at the end in order to use a smaller fitting.can be tested the intake/exhaust diameter is bigger than 2" more quickly and accurately leakage .

【EASY TO USE】The smoke machine automotive can be powered by the car’s battery, and Shop Air driven to increase duribility and ensure big smoke flow And can quickly generate smoke

【CONVENIENT TOOL FOR MECHANICS】Fuel Leak Detector designed for detecting the leakage of pipe systems on cars, motorcycles, snowmobiles, ATV, light trucks, boats

【SPECIFICATIONS VOLTAGE】Automotive smoke machine DC 12V. Smoke output pressure:0.5PSI. Smoke output volume: ＜8LPM. Smoke current: 6 AMP.

🚗【Diagnose All Types of Leaks】🚗The SM603 smoke machine automotive can help you detect accurately the leakage of EVAP system, intake/exhaust system, vacuum leaks, sealing test, fuel tank system, turbo, crankcase system, various pipe fittings , Throttle Shafts, Door&Windows seals, Oil Leaks and more! It can output the smoke within seconds, improve the efficiency of diagnose dramatically.

🚗【Advanced and Safe】🚗The Romondes SM603 evap smoke machine with thick smoke output detects even the smallest leaks. It is safe and reliable as there is no need to start the vehicle during use. Moreover, when this smoke leak detector can be smart power off, the power will be automatically shut off when it exceeds the 75 ℃ housing limit.

🚗【Flow meter】🚗SM603 automotive smoke machine provides a quick visual indication of the amount of smoke passing through the system being tested. Adjustable flow meter helps you control the amount of smoke easily and also used to lock out the system under test and observe any pressure decay on the pressure gauge.

▶ Convenient Automotive Tool - RTRHINOTUNING Smoke Leak Detector is a professional auto pipe leak detect tool. Designed for detecting the leakage of pipe systems on cars, motorcycles, snowmobiles, off-road vehicles, ATVs, light trucks and speedboats boats, You will quickly find the leak point in pipe via the smoke. One of the best tools you will ever own! If it leaks a smoke machine will find it.

▶ Working Type - The leak tester will turn smoke oil (USP Mineral Oil / Baby Oil) into smoke, then blow smoke into pipe system, you will find leak point in pipe via the smoke. In brief, our smoke detector can quickly make constant smoke to find leak. The vacuum smoke machine has its own Air Pump without relying on other machines. Simply connect the detector with the DC12V battery, it can output thick smoke within 20s after turning on.

▶ Application - Crankcase System Test, Intake System Test, Exhaust Systems Test, Fuel Tank System Test, Turbo System Test, Cooling System Test, Various Pipe Fittings Test. The Car Pipe leak Detector ​can be also be used to find other leaks, oil leaks, wind water and weatherstripping leaks; tractor & car cabs, EGR and exhaust systems, the list goes on.

[HOW TO WORK]: Firstly fill 20ml test oil, then simply connect the DC12V battery, it starts to work. Soon thick smoke outputs into sealed pipe system. You can find the leak point easily.

[WHY IS IT NEEDED]: Must-have tool for vehicle techs. It has its own Air Pump without relying on other machines and Pressure Gauge with precise scales. By observing the pressure gauge, the leakage situation is clear at a glance.

[WHAT IS ITS STANDOUT]: Smoke tester is detachable, compact, and easy to store, time-efficient and labor-free, and is widely used in various auto repair shops. Comes with EVAP adapters, it can help you apply with EVAP System of all vehicles to quickly find out the leak parts.

Easiest Method to Leak Test EVAP Systems

Fits All Vehicles

Precision Machined

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[Find all kinds of leaks] The ANCEL S3000 is a professional smoke leak detector which can generate a lot of smoke and help you troubleshoot, diagnose and repair the EVAP system to solve the problem of engine weakness and high fuel consumption due to leaks. It not only supports leak detection in EVAP system, but also can be used to detect exhaust/condensation/EGR system, vacuum system, turbine system, intake manifold, vacuum line, etc.

[High performance and high-quality metal structure] Compared to other simple smoke leak diagnostic testers, the ANCEL S3000 smoke machine not only has a built-in air pump, but also has a pressure gauge and an adjustable flow meter. The compressor generates air pressure from 0.8 to 14.5 psi, allowing smoke to be easily introduced into the tested sealing system, speeding up the leak detection process.

Carburetor leak detector replaces part number: ZAMA ZPG-2；Tillotson 243-504

Carburetor leak detector Fits for W-albro 57-21 Stens 705-020

Measurement range:0~138kpa(0~20psi)；Used to test whether 2-cycle carburetor leaks

【Easy to Use】: This EASYUSE smoke machine automotive can be powered by a car battery and powered by Shop Air, increasing durability and ensuring high smoke flow. And can quickly generate smoke.

【Convenient Tool for Mechanics】: Fuel Leak Detector designed for detecting the leakage of pipe systems on cars, motorcycles, snowmobiles, ATV, light trucks, boats

【Great Smoke Flow Control】: Turn the red handle anti-clockwise to adjust the flow rate to a proper level.

High Quality Material: This quick intake adapter is made of excellent quality silicone gel which can provide better seal, softness and elasticity as well as endure high temperature and strong tear.

Quick and Convenient: AUPREX quick intake adapter is with an inflatable block off airbag and a pressurized pass through valve which allows user to test the entire intake and exhaust system quickly and easily.

How to Use: Clean the inner wall of the intake entry and make sure the throttle connection are removed to avoid scratches on the adapter. Please make sure the intake/exhaust diameter is within 2" to 5.5".

【Easy to Use】: This smoke machine automotive can be powered by a car battery and powered by Shop Air, increasing durability and ensuring high smoke flow. And can quickly generate smoke.

【Convenient Tool for Mechanics】: Fuel Leak Detector designed for detecting the leakage of pipe systems on cars, motorcycles, snowmobiles, ATV, light trucks, boats

【Great Smoke Flow Control】: Turn the red handle anti-clockwise to adjust the flow rate to a proper level.

[Wide Range of Applications]: For detecting the leakage of pipe systems on cars, motorcycles, snowmobiles, off-road vehicles, ATVs, light trucks and speedboats boats. Suitable for all car models.

[Powerful and Easy to Operate ] : QPKING smoke leak detector has its own Air Pump without relying on other machines and Pressure Gauge with precise scales. Simply connect the detector with the DC12V battery, it can output thick smoke within 30s after turning on.

[Advanced Technology]: It works on the EVAP system. (Provided with another version that specially designed for EVAP system). Equipped with dual flowmeters for accurate data display & Independently controlled Air mode and Smoke mode.

Top performance for long service life

Maximum reliability

Designed to meet or exceed OE specifications in form, fit and function

MULTIFUNCTIONAL SMOKE MACHINE- Autory A205S smoke leak detector automotive is able to work on the automotive EVAP system. A205S EVAP Smoke Machine is also capable of detecting and locating leaks for various pipelines, intake & exhaust system, fuel tank, turbo, sealing, crankcase and cooling systems.

ADJUSTABLE OUTPUT FLOW- Autory A205S EVAP Smoke Machine is equipped with an airflow meter to observe the current airflow volume. This EVAP Smoke Machine leak detector is also embedded with an airflow regulator to better control the smoke effect.

AIR & SMOKE DUAL MODE- Air Mode: Independently controlled by a built-in air pump; Smoke Mode: Independently controlled by a smoke generator. Autory A205S smoke leak detector is equipped with independently controlled air pump and smoke generator, so this EVAP Smoke Machine does not rely on additional air machine.

🎁[Buy 1 Get 1]: Buy S200 smoke machine automotive get free KS21 battery tester worth $29.00, click "extra savings" under the price and add both to your cart, save money on battery tester

💨[99% System Leak Detect]: ANCEL S200 automotive smoke machine is a professional automobile pipe system leak detector, which can accurately locate more than 99% of smoke leakage point within a few minutes by outputting a large amount of smoke. It’s suitable for EVAP systems, vacuum leaks, low pressure turbo leaks, intake manifolds, cooling/EGR/exhaust systems, worn rubber, gaskets, seals, connectors and more. Get ANCEL S200 smoke tester saves you time and money

💨[Dual Modes And Visual Pressure Gauges]: ANCEL S200 smoke tester automotive is equipped with two working modes: gas mode for quick detection of leaks without oil, and smoke mode for accurate detection of leaks with testing oil. Equipped with visual pressure gauge, you can easily judge the extent of leakage, the more serious it leak, the more pressure drops

EVAP Smoke Machine Tester: Smoke leakage detector tool kit contains 13 tools to fit almost all makes and models of cars, off-roads, ATVs, light trucks, boats, and RVs. The smoke tester automotive kit contains 1 economical smoke leak detector, 1 hook, 1 specific power cable, 1 smoke output tube, 1 universal adaptor, 3 taper stopples, 1 adapter substitute, 1 crankcase adapter connector, 1 capped cone adapter, 1 250ML specific tester oil, 1 valve core wrench and an easy-to-read instruction.

Extensive Testing Scope: JoyFans car fuel leak detector looks small, but it is good enough to deal with the auto sealing detection and diagnosis test on general vehicles and widly workable for multi-systems (including exhaust system, intake system, cooling system, fuel system, and EVAP system), gas lines, cylinder's internal mechanical parts, and engine air tightness. When testing the EVAP system, please check the real-time pressure and turn off the working switch in time.

Visual Detection: Automotive smoke leak detector works by vibrating the specific tester oil (or baby oil) into smoke, and blowing the smoke into the sealed systems to be tested. Oil gas can be quickly generated and transferred into the entire tested system in about 2 minutes. If there is a leak in the sealing system somewhere, gas will come out of that place, just fix it. No need to prepare or rely on other air machines, the instrument has its own built-in air pump to save cost and effort.

[Evaporative Emissions Leak Detection Pump]: this evaporative emissions system leak detection pump is designed as a replacement part for vehicle, it helps detect evaporative emission leaks in the fuel system and is an essential part of automotive

[Compatible with Vehicle Specific]: it's compatible with these parts such as 4861959AA, 4861959AB, 4861959AC, 52855827AA, 52855827AB, 4B159; And compatible with Chrysler Aspen 2007-2009/Fiat 500 2012-2015, 2018/Fiat 500L 2014-2016/Jeep Grand Cherokee 2011-2019/Jeep Liberty 2008-2012/Ram 1500 2009-2019/Dodge Durango 2007-2008, 2011-2019/Dodge Nitro 2007-2011, Dodge/Ram 1500 2009-2010, and more

[Durable and Reliable]: the product is made of durable plastic which can ensure a long time use, with practical function design, the evaporative emissions system leak detection pump is reliable and perform well, help your automotive in a good situation

Product constructed to meet all design and operating characteristics as intended by the vehicle manufacturer.

Features application specific mounting bracket and accessories as the dealer purchased part provides ease of installation.

Top performance for long service life

Fit for select 2007-2019 cars. More in description.

Fit for select 200 300 Pacifica Sebring Town and Country Caliber Challenger Charger Gradn Caravan Ram 1500 2500 3500 4500 5500 Compass Liberty Patriot Wrangler Wrangler JK.

OE NO.: 310-215 4861962AA 4861962AB 4861962AC 4891685AA 4891685AB 52129436AB 4B1591 ESM1001 LDP14 VDP14

【Why Need It】For example: 1. The rupture of the vacuum hose will cause the mixture to be too thick, the idle speed will increase, the hot car will not start well, the engine will surge during acceleration, the fuel consumption will increase significantly, and the exhaust pipe will emit black smoke. 2. Blocking will cause the idle speed to drift, and the idle speed is easy to stall. 3. Air leakage in the vacuum tube will cause the engine to run weakly

【No Air Pump】Connect shop air supply, connect 12V vehicle power, introduce shop air to the AUTOOL SDT103 fuel leak tester, turn the Flow Dial anti-clockwise to open the air flow, switch on the power at the back of the unit, then AUTOOL SDT101 smoke machine automotive will start to generate smoke.

【External Flow Meter】You can easily control the air pressure, because the air pressure of each pipe in the car is different. If the air pressure is too high, the pipe will be damaged, and if the air pressure is too low, the leak will not be detected. Therefore, the flow meter is very important to protect your detection system more effectively. Make testing safer

Evaporative Emission Vacuum Smoke Diagnostic Tester - this is an important machine used in a leak diagnostic process, it can be gas or air leaks. This machine uses artificial smoke to the vacuum systems in the engine and can determine if fuel pipe lines, cooling tank, turbo system, intake systems or exhaust system have leaks.

DC 12V Automotive Engine Smoke Machine - This kit includes the smoke machine, power cord clamp, smoke hose, 8 types of hard rubber hose plug, valve core tool, evap connector, hook, cone adapter and a test oil refill bottle for a complete diagnostic test on your DC 12V vehicle. Printed manual instructions included. The smoke leak machine detector has overheat protection that will automatically turn off if it exceeds 75C heat.

Universal Pipe Leak Detector - this portable device has a 9-11 PSI output pressure and a 6L per minute output flow for a precise smoke test. If your engine has reduced its power, has poor acceleration, hearing wheezing sound under the hood or the Check Engine Light is showing then the vacuum systems on your vehicle may have a problem or needs a smoke diagnostic test.

【OEM Part No.】 Leak Detection Pump replacement for 16137193479

【Compatible Vehicles】 Compatible with Land Range Rover Sport Evoque 2008-2016 （Please check the part number of your original and compare it with our detail page to ensure that it fits）

【OEM Design】OEM standard design, providing excellent performance, direct replacement for proper assembly and easy installation, and the quality of materials used conforms to OEM standard