{"product_id":"disen-14-pcs-compression-tester-kit-0-300-psi-triple-scale-gauge-with-fluorescent-dial-5-metal-adapters-m10-m18-2-spark-plug-testers-for-gasoline-engines-cars-trucks-atv-small-engines","title":"DISEN 14 PCS Compression Tester Kit, 0-300 PSI Triple-Scale Gauge with Fluorescent Dial, 5 Metal Adapters M10-M18 \u0026 2 Spark Plug Testers, for Gasoline Engines Cars Trucks ATV Small Engines","description":"\u003ch3\u003eAbout this item\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e🔧【COMPLETE 14-PIECE COMPRESSION TESTER KIT】This professional compression tester kit includes: 1 pressure gauge (0-300 PSI), 2 spark plug testers, 1 straight rod, 1 bent rod, 1 extension hose, 5 metal adapters (M10x1, M12x1.25, M14x1.25, M16x1.5, M18x1.5), 4 rubber O-rings, and 1 plastic storage case. Designed for gasoline engines only—NOT for diesel.\u003c\/li\u003e\n\u003cli\u003e🔬【HIGH-VISIBILITY FLUORESCENT GAUGE – DAY \u0026amp; NIGHT READABLE】Features a large 2.5\" Ø63mm dial with triple-scale readings: 0-300 PSI, 0-20 Bar, and 0-21 kg\/cm². The fluorescent dial finish ensures clear visibility in both bright workshop lighting and low-light conditions. With a built-in Schrader valve inside the gauge for stable, reliable peak pressure readings—no extra adapter needed.\u003c\/li\u003e\n\u003cli\u003e⚙️【QUICK \u0026amp; EASY TEST PROCEDURE – 5 COMPRESSION STROKES】Save time and money on mechanic visits. Simply: (1) Run engine to normal operating temperature, then remove all spark plugs and disable the ignition system; (2) Open the throttle to wide open position; (3) Select correct adapter and hand-tighten into spark plug hole; (4) Crank the engine for at least 5 compression strokes until the gauge needle stops rising; (5) Press the quick-release safety valve to reset before testing the next cylinder. Use the 10% deviation rule to identify engine issues. Complete diagnosis in minutes.\u003c\/li\u003e\n\u003cli\u003e🔍【DIAGNOSTIC ACCURACY – 10% DEVIATION RULE】Use the 10% deviation rule for accurate engine health assessment: compare readings across all cylinders—a deviation of more than 10% between the highest and lowest readings indicates potential engine problems. The built-in Schrader valve ensures stable, reliable peak pressure readings every time. Includes 2 spark plug testers for quick ignition system troubleshooting—simply connect between spark plug and plug wire, start engine, and observe the spark to detect defective cables or connections.\u003c\/li\u003e\n\u003cli\u003e📦【DURABLE METAL ADAPTERS \u0026amp; STORAGE CASE】Built with high-quality metal adapters and durable hose for workshop-grade reliability. Quick-release safety valve allows safe one-handed pressure release after each test. Includes 4 rubber O-rings for secure sealing. All components neatly organized in a protective carrying case for easy storage and portability. Ideal for professional mechanics and DIY enthusiasts.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eOverview\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBrand:\u003c\/strong\u003e DISEN\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaterial:\u003c\/strong\u003e Abs Plastic, Alloy Steel, Brass, Rubber\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eItem dimensions L x W x H:\u003c\/strong\u003e 10 x 3.5 x 6 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eItem Weight:\u003c\/strong\u003e 1.5 Pounds\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eNumber of Items:\u003c\/strong\u003e 1\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"DISEN","offers":[{"title":"Default Title","offer_id":40834128117889,"sku":"B0H11R651Q","price":66.38,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0607\/5754\/0993\/files\/51pHy-C6C9L.jpg?v=1784710078","url":"https:\/\/garagenest.us\/products\/disen-14-pcs-compression-tester-kit-0-300-psi-triple-scale-gauge-with-fluorescent-dial-5-metal-adapters-m10-m18-2-spark-plug-testers-for-gasoline-engines-cars-trucks-atv-small-engines","provider":"GarageNest","version":"1.0","type":"link"}