--- product_id: 316881902 title: "37145 Combustion Leak Detector, Plastic and Rubber Tester for Engine Block Leaks, Automotive Blown Head Gasket Test, Block Test Kit" brand: "oemtools" price: "€ 61.67" currency: EUR in_stock: true reviews_count: 10 category: "Oemtools" url: https://www.desertcart.pt/products/316881902-37145-combustion-leak-detector-plastic-and-rubber-tester-for-engine store_origin: PT region: Portugal --- # Heavy-duty mechanic-grade build Seconds to detect leaks Visual fluid color change indicator 37145 Combustion Leak Detector, Plastic and Rubber Tester for Engine Block Leaks, Automotive Blown Head Gasket Test, Block Test Kit **Brand:** oemtools **Price:** € 61.67 **Availability:** βœ… In Stock ## Summary > πŸ”§ Don’t let hidden leaks slow you down β€” detect, diagnose, and dominate your engine repairs! ## Quick Answers - **What is this?** 37145 Combustion Leak Detector, Plastic and Rubber Tester for Engine Block Leaks, Automotive Blown Head Gasket Test, Block Test Kit by oemtools - **How much does it cost?** € 61.67 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.pt](https://www.desertcart.pt/products/316881902-37145-combustion-leak-detector-plastic-and-rubber-tester-for-engine) ## Best For - oemtools enthusiasts ## Why This Product - Trusted oemtools brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - β€’ **Compact & Portable:** Lightweight and hand-powered for easy use anywhere, anytime. - β€’ **Rapid Leak Detection:** Identify combustion leaks in seconds to minimize downtime. - β€’ **Visual Color Change Alert:** Blue-to-yellow fluid indicator instantly confirms gasket or block leaks. - β€’ **Comprehensive Engine Testing:** Detects blown head gaskets, cracked heads, pulled bolts, and warped seals. - β€’ **Durable Mechanic-Grade Design:** Built tough with a sturdy plastic case for on-the-go professionals. ## Overview The OEMTOOLS 37145 Combustion Leak Detector is a professional-grade, hand-powered diagnostic tool designed to quickly identify internal engine leaks such as blown head gaskets and cracked blocks. Featuring a visual fluid color change from blue to yellow, it delivers rapid, reliable results in seconds. Packaged in a durable carrying case, this tester is an essential addition for mechanics seeking efficient, on-the-spot engine leak detection. ## Description The OEMTOOLS 37145 Combustion Leak Tester and Head Gasket Leak Tester is ideal for finding internal engine combustion leaks and blocks quickly and easily. This Block Test Kit is designed for professional auto mechanics looking for a quality detector test. The heavy duty head gasket test is a smart addition to your OEMTOOLS toolbox. Think there is a leak in your engine block? This OEMTOOLS leak down tester will help you speed up identifying the problem so a repair can start right away. If there is a head gasket leak, bolt block pulled bolts, stud blocks, or warped sealer surfaces, the combustion leak detector fluid in the plastic tester bottle will turn from blue to yellow. Once the color changes, you will know that the pressure or leak problem is there. This block checker, head gasket leak tester, and combustion leak test also comes complete with a sturdy carrying case, perfect for any mechanic. Requires OEMTOOLS 25739 Combustion Leak Detector Fluid, sold separately. Review: Used for a Check Engine warning of P0302. - So warning code P0302 (last number is for which cylinder) is for rough running of the 2nd Cylinder. At local parts store, recommends change spark plug and or ignition coil. I changed both which did not solve the issue. I was also suddenly having overheating issues with loss of coolant. Checked internet, YouTube provided me with great education and potential cause of issues, leaky head gasket and/or cracked head, where coolant is going into the cylinder, causing coolant to burn off and the cylinder to run rough. A video recommended using a tester to see if there are combustion gases in the coolant/radiator/overflow tank. I combined this product with Lisle 75630 Test Fluid. Delivery time was good. Did it's job. I was looking at the Block Tester BT-500 which provided the tester and fluid. But for the same price, I bought this tester and the Lisle fluid for the same price and it included a case for the tester. I confirmed I had a head gasket leak (light green rather than color changing all the way to yellow, so my guess, a gasket leak rather than a cracked head). Once I determined the issue, I tried calling numerous car shops regarding replacing the gasket. All turned me down. One finally told me that the only place that will do the work is a Dealership. My research on YouTube also showed that many people were having to replace their engine due to cracked heads as a result of poor manufacturer design for cylinder cooling. I own a car that may well need a new engine if I don't do something quick, and my car is only 6 years old. After research on YouTube, I went with K-Seal Pour and Go. Took about 3x cycles of running the car with radiator at operating temperature, and then poof, my Check Engine light went out. From reviews, it seems you will get at least 10k-20k miles out of it, some claim never had a problem again. If the problem does reappear, I will probably then try the K-Seal Ultimate Gasket Seal. But for the price of the 4-set of spark plugs, the ignition coil, the OBD, this OEMTools Tester, the Lisle Fluid and the K-Seal (all total approx. $180), I have an engine that is operating properly again, and my Check Engine light is gone. Of note, now if I shop for a used car ( I usually buy a 3 year old car and sell at 6 years old), I can test the radiator fluid for combustion gases, and check the car for any outstanding Check Engine Warnings, just in case they were cleared out. I can still see the "permanent record" which remains until the problem is actually solved. Also, I will ALWAYS do a search on YouTube and the internet in general, to find out what issues there may be with a certain vehicle. Maybe a bumper to bumper extended warranty isn't such a bad idea. Review: 2 bad orders - High rating so this gets see. I've not had problems in the past w this brand, but this tool they can't manufacture properly I guess. First tester allowed 0 airflow through the unit. Had to drill out the bottom cone before air would pass through the tester. Replacement is exact same thing, it's like the air hole gets sealed up when they glue the stone to the rubber cone piece. Bad product I will be trying another brand. ## Features - Leak Detector: Locate internal combustion leaks quickly and easily; Leak down tester for blown head gasket, cracked head, block pulled bolts, stud blocks, warped sealing surfaces - Detector Test Function: The tool provides easy-to-read results; When fluid turns from blue to yellow, combustion leak is present - Heavy Duty Engine Automotive Test System: Gasket leak test kit designed for mechanic; Combustion leak tester comes in sturdy, plastic carrying case - Quick Results: Tests in seconds for blown head gasket, cracked head, block pulled bolts, stud blocks, warped sealing surfaces - Combustion Leak Test: Tester identifies leaking and blocks in engine to support head gasket and block repair ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B08XS7K682 | | Alarm | Visual | | Best Sellers Rank | #98,857 in Industrial & Scientific ( See Top 100 in Industrial & Scientific ) #89 in Leak Detection Tools | | Brand | OEMTOOLS | | Built-In Media | BLOCK TESTER | | Color | Multi | | Customer Reviews | 4.4 out of 5 stars 226 Reviews | | Enclosure Material | Blend | | Item Dimensions D x W x H | 8.25"D x 4.63"W x 8.38"H | | Item Type Name | BLOCK TESTER | | Item Weight | 1.3 Pounds | | Manufacturer | Great Neck Saw Mfg. Inc. | | Mfr Part Number | 37145 | | Model Number | 37145 | | Number of Items | 1 | | Power Source | Hand Powered | | Product Dimensions | 8.25"D x 4.63"W x 8.38"H | | Product Style | Heavy Duty | | Style | Heavy Duty | | UPC | 076812371454 | | Unit Count | 1.0 Count | ## Product Details - **Brand:** OEMTOOLS - **Style:** Heavy Duty - **Power Source:** Hand Powered - **Color:** Multi - **Product Dimensions:** 8.25"D x 4.63"W x 8.38"H - **Item Weight:** 1.3 Pounds - **Alarm:** Visual - **Material:** Blend - **Number of Items:** 1 - **Manufacturer:** Great Neck Saw Mfg. Inc. ## Images ![37145 Combustion Leak Detector, Plastic and Rubber Tester for Engine Block Leaks, Automotive Blown Head Gasket Test, Block Test Kit - Image 1](https://m.media-amazon.com/images/I/81Vgb-B+2US.jpg) ## Customer Reviews ### ⭐⭐⭐⭐⭐ Used for a Check Engine warning of P0302. *by C***E on July 30, 2023* So warning code P0302 (last number is for which cylinder) is for rough running of the 2nd Cylinder. At local parts store, recommends change spark plug and or ignition coil. I changed both which did not solve the issue. I was also suddenly having overheating issues with loss of coolant. Checked internet, YouTube provided me with great education and potential cause of issues, leaky head gasket and/or cracked head, where coolant is going into the cylinder, causing coolant to burn off and the cylinder to run rough. A video recommended using a tester to see if there are combustion gases in the coolant/radiator/overflow tank. I combined this product with Lisle 75630 Test Fluid. Delivery time was good. Did it's job. I was looking at the Block Tester BT-500 which provided the tester and fluid. But for the same price, I bought this tester and the Lisle fluid for the same price and it included a case for the tester. I confirmed I had a head gasket leak (light green rather than color changing all the way to yellow, so my guess, a gasket leak rather than a cracked head). Once I determined the issue, I tried calling numerous car shops regarding replacing the gasket. All turned me down. One finally told me that the only place that will do the work is a Dealership. My research on YouTube also showed that many people were having to replace their engine due to cracked heads as a result of poor manufacturer design for cylinder cooling. I own a car that may well need a new engine if I don't do something quick, and my car is only 6 years old. After research on YouTube, I went with K-Seal Pour and Go. Took about 3x cycles of running the car with radiator at operating temperature, and then poof, my Check Engine light went out. From reviews, it seems you will get at least 10k-20k miles out of it, some claim never had a problem again. If the problem does reappear, I will probably then try the K-Seal Ultimate Gasket Seal. But for the price of the 4-set of spark plugs, the ignition coil, the OBD, this OEMTools Tester, the Lisle Fluid and the K-Seal (all total approx. $180), I have an engine that is operating properly again, and my Check Engine light is gone. Of note, now if I shop for a used car ( I usually buy a 3 year old car and sell at 6 years old), I can test the radiator fluid for combustion gases, and check the car for any outstanding Check Engine Warnings, just in case they were cleared out. I can still see the "permanent record" which remains until the problem is actually solved. Also, I will ALWAYS do a search on YouTube and the internet in general, to find out what issues there may be with a certain vehicle. Maybe a bumper to bumper extended warranty isn't such a bad idea. ### ⭐⭐⭐⭐⭐ 2 bad orders *by W***. on February 18, 2024* High rating so this gets see. I've not had problems in the past w this brand, but this tool they can't manufacture properly I guess. First tester allowed 0 airflow through the unit. Had to drill out the bottom cone before air would pass through the tester. Replacement is exact same thing, it's like the air hole gets sealed up when they glue the stone to the rubber cone piece. Bad product I will be trying another brand. ### ⭐⭐⭐⭐ Works well, but sticky check valves are a common (but easy to fix) problem straight out of the box. *by G***M on July 3, 2024* If you have an issue with the tester unable to suck air: do not return immediately. Try this first. When I received mine, it would not pull air through the bottom of the tester. After doing some research, this seems to be a very common issue with all of these inexpensive testers, regardless of manufacturer. Take a skinny, blunt object, insert it into the bottom hole, and LIGHTLY tap. This should free up the check valve and allow it to work. Once I did that, worked exactly as advertised. Also be aware that it does not come with fluid, I purchased some from Lisle. 4 stars due to the stuck check valve, but otherwise the tester and case are pretty nice and work well. Should you have to fix this on a brand new item? No, but the fix takes 5 seconds so I would still recommend the product. ## Frequently Bought Together - OEMTOOLS 37145 Combustion Leak Detector, Plastic and Rubber Tester for Engine Block Leaks, Automotive Blown Head Gasket Test, Block Test Kit - Lisle 75630 Test Fluid - Block Tester BT-600 Replacement Combustion Leak Test Fluid 16 oz --- ## Why Shop on Desertcart? - πŸ›’ **Trusted by 1.3+ Million Shoppers** β€” Serving international shoppers since 2016 - 🌍 **Shop Globally** β€” Access 737+ million products across 21 categories - πŸ’° **No Hidden Fees** β€” All customs, duties, and taxes included in the price - πŸ”„ **15-Day Free Returns** β€” Hassle-free returns (30 days for PRO members) - πŸ”’ **Secure Payments** β€” Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** β€” Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.pt/products/316881902-37145-combustion-leak-detector-plastic-and-rubber-tester-for-engine](https://www.desertcart.pt/products/316881902-37145-combustion-leak-detector-plastic-and-rubber-tester-for-engine) --- *Product available on Desertcart Portugal* *Store origin: PT* *Last updated: 2026-06-18*