{"product_id":"betooll-engine-compression-tester-kit-15-piece-300-psi-with-spark-plug-tester-and-14mm-16mm-magnetic-swivel-sockets","title":"BETOOLL Engine Compression Tester Kit 15-piece — 300 PSI with Spark Plug Tester and 14mm\/16mm Magnetic Swivel Sockets","description":"\u003cstrong\u003eBETOOLL's 15-piece compression tester kit is a complete 300 PSI engine cylinder diagnostic set that includes a spark plug tester, magnetic 14mm and 16mm swivel spark plug sockets, and ten adapter fittings for broad vehicle compatibility.\u003c\/strong\u003e\n\n\u003cp\u003eIf you need to check cylinder compression quickly and accurately, this kit gives technicians and DIYers the adaptors and tools to test petrol engines across cars, trucks, ATVs, lawn mowers and small boats. All parts are purpose-built to reach spark plug holes, maintain a secure connection to the ratchet, and deliver a reliable pressure reading up to 300 PSI. The set is designed for convenience: magnetic swivel sockets hold spark plugs in place, thin-walled fittings reach tight wells, and a range of thread adapters fits most gasoline engines.\u003c\/p\u003e\n\n\u003ch3\u003eHow does this kit make engine compression testing easier?\u003c\/h3\u003e\n\u003cp\u003eThe BETOOLL kit combines a durable gauge with multiple adapters and spark plug tools so you don’t need separate purchases for different engines. Quick-connect fittings and a sealed hose let you get repeatable readings without air leaks, while the gauge scale up to 300 PSI covers typical petrol engine ranges.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003e15-piece set includes gauge, hose, 10 adapters, spark plug tester, and swivel sockets\u003c\/li\u003e\n  \u003cli\u003e300 PSI gauge provides clear, easy-to-read pressure values\u003c\/li\u003e\n  \u003cli\u003eSealed connections prevent false readings from leaks\u003c\/li\u003e\n  \u003cli\u003eAdapters cover common spark plug and threaded port sizes\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWill the magnetic swivel sockets protect and hold spark plugs?\u003c\/h3\u003e\n\u003cp\u003eThe magnetic 14mm and 16mm swivel sockets are designed to securely hold spark plugs during removal and installation. A 12-point, thin-walled construction improves access in tight engine bays, and the swivel head aligns with ratchets to reduce cross-threading and dropped plugs.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eMagnetic tip grips spark plugs to prevent dropping\u003c\/li\u003e\n  \u003cli\u003eSwivel head conforms to tool angle for safe installation\u003c\/li\u003e\n  \u003cli\u003eThin-walled 12-point design fits narrow spark plug wells\u003c\/li\u003e\n  \u003cli\u003eCompatible with many MINI and BMW engines where space is limited\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhat engines and vehicles are compatible with this compression tester?\u003c\/h3\u003e\n\u003cp\u003eThe kit is aimed at petrol-powered engines and is not suitable for crude oil engines. Included adapters make it suitable for cars, trucks, motorcycles, ATVs, lawn mowers, small boats, and other gasoline engines that require standard threaded compression fittings.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eTen adapters for a wide range of cylinder thread sizes\u003c\/li\u003e\n  \u003cli\u003eWorks with cars, trucks, boats, lawn equipment, and ATVs\u003c\/li\u003e\n  \u003cli\u003eThin-walled sockets improve compatibility with BMW\/MINI narrow wells\u003c\/li\u003e\n  \u003cli\u003eNot intended for diesel\/crude oil engine testing\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eHow should I use the spark plug tester in the kit?\u003c\/h3\u003e\n\u003cp\u003eThe included spark plug tester helps confirm ignition output while the compression test isolates mechanical condition. Use the tester to verify spark under controlled conditions, then proceed with the compression gauge to diagnose cylinder pressure issues.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eConnect tester to ignition circuit per vehicle manual precautions\u003c\/li\u003e\n  \u003cli\u003eObserve spark output to rule out ignition faults before compression checks\u003c\/li\u003e\n  \u003cli\u003eUse magnetic socket to remove spark plug and fit compression adapter\u003c\/li\u003e\n  \u003cli\u003eRecord compression readings across cylinders for comparison\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eWho is this for: The BETOOLL 15-piece compression tester kit is designed for home mechanics, automotive technicians, and field service professionals who need a versatile, portable diagnostic kit for petrol engines. It’s particularly useful when you face tight spark plug wells (common in BMW and MINI models) or when you require multiple adapters to cover mixed fleet maintenance. If you perform routine engine troubleshooting, prep vehicles for sale, or repair small engines, this set consolidates several essential tools into one durable kit.\u003c\/p\u003e\n\u003csection class=\"product-faq-snippet\"\u003e\u003ch3\u003eFAQ\u003c\/h3\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: Can this kit test diesel engines?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: No. This kit is intended for petrol (gasoline) engines only, not diesel or crude oil engines.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: Does the kit include adapters for BMW\/MINI vehicles?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Yes. Thin-walled sockets and multiple adapters improve compatibility with BMW and MINI tight spark plug wells.\u003c\/p\u003e\n\u003c\/div\u003e\u003c\/section\u003e","brand":"BETOOLL","offers":[{"title":"Default Title","offer_id":48083360317598,"sku":"B0DQPW3TM3","price":64.98,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0781\/2041\/9486\/files\/betooll-compression-tester-front-gauge.jpg?v=1785832136","url":"https:\/\/northtrailauto.ca\/products\/betooll-engine-compression-tester-kit-15-piece-300-psi-with-spark-plug-tester-and-14mm-16mm-magnetic-swivel-sockets","provider":"North Trail Auto","version":"1.0","type":"link"}