{"product_id":"betooll-petrol-engine-compression-tester-kit-8pcs-triple-range-gauge-solid-brass-adapters","title":"BETOOLL Petrol Engine Compression Tester Kit, 8pcs — Triple-Range Gauge \u0026 Solid Brass Adapters","description":"\u003cp\u003e\u003cstrong\u003eBETOOLL 8pcs Petrol Engine Cylinder Compression Tester Kit is a portable diagnostic set that measures petrol engine compression accurately with a triple-range gauge and solid brass adapters.\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cp\u003eThis compact kit gives you a complete compression test solution for petrol engines — ideal for DIY mechanics and professional technicians who need fast, reliable readings. The set includes a 0–300 psi (0–20 bar \/ 0–21 kg\/cm²) analog gauge, four brass adapter sizes, a 16-inch hose with a push-button release, and both straight and 45° universal shafts. Everything nests in a protective case to keep the tools organized and transportable.\u003c\/p\u003e\n\n\u003ch3\u003eHow does the gauge tell me if a cylinder is healthy?\u003c\/h3\u003e\n\n\u003cp\u003eThe triple-range dial displays readings in psi, bar, and kg\/cm² so you can match workshop standards or vehicle manuals. A steady high reading across cylinders usually indicates good sealing and compression; lower or widely varying values point to potential leaks or wear. Use the included release valve to equalize pressure between tests.\u003c\/p\u003e\n\n\u003cul\u003e\n  \u003cli\u003eAnalog gauge range: 0–300 psi, 0–20 bar, 0–21 kg\/cm² for versatile reference.\u003c\/li\u003e\n  \u003cli\u003eConsistent readings from same cylinder confirm reliable compression.\u003c\/li\u003e\n  \u003cli\u003ePush-button release valve lets you bleed pressure safely and quickly.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhich engine fittings are included and why are they useful?\u003c\/h3\u003e\n\n\u003cp\u003eThe kit supplies solid brass adapters in four common spark-plug thread sizes so you can connect to a variety of petrol engines without adapters from other brands. Brass resists corrosion and provides a snug, leak-resistant seal under test pressures, eliminating flimsy plastic or aluminum components that might fail or leak.\u003c\/p\u003e\n\n\u003cul\u003e\n  \u003cli\u003eAdapters: 18mm, 14mm, 12mm and 10mm to cover typical petrol engine plugs.\u003c\/li\u003e\n  \u003cli\u003eSolid brass construction for durability and leak-resistant connections.\u003c\/li\u003e\n  \u003cli\u003eIncludes straight and 45° universal direct shafts for tight-access spark plug holes.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eHow do I use the hose and release valve during testing?\u003c\/h3\u003e\n\n\u003cp\u003eThe 16-inch hose gives you reach around engine bays while keeping the gauge accessible on a bench or nearby surface. The integrated push-button release valve quickly vents the tester after each measurement, preventing overpressure and helping you compare cylinders without manual disengagement.\u003c\/p\u003e\n\n\u003cul\u003e\n  \u003cli\u003e16\" hose length for flexible positioning and safe distance from engine heat.\u003c\/li\u003e\n  \u003cli\u003ePush-button release valve for fast, controlled pressure bleed-off.\u003c\/li\u003e\n  \u003cli\u003eUniversal shafts help connect the hose securely in tight or angled spark plug wells.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhat comes in the case and how does it help workshop workflow?\u003c\/h3\u003e\n\n\u003cp\u003eThe kit is organized in a durable carrying case with soft foam cutouts that keep every component secure and visible. That organization speeds up diagnostics, reduces risk of lost parts, and protects delicate gauge internals during transport between jobs or to a remote inspection site.\u003c\/p\u003e\n\n\u003cul\u003e\n  \u003cli\u003eDurable molded case with soft sponge lining for impact protection.\u003c\/li\u003e\n  \u003cli\u003eAll 8 pieces stored neatly for fast access and inventory checks.\u003c\/li\u003e\n  \u003cli\u003eCompact footprint makes it easy to store in shop drawers or vehicle trunks.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eWho this is for: The BETOOLL compression tester kit suits home mechanics, mobile technicians, and small shops who need an affordable, sturdy tool for routine engine diagnostics. If you work on petrol engines and want clear compression readings, corrosion-resistant adapters, and a portable kit that survives workshop conditions, this set provides a practical, long-lasting solution without relying on fragile plastic fittings.\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: Will this kit fit my petrol engine spark plugs?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: It includes 18mm, 14mm, 12mm and 10mm brass adapters to fit most petrol-engine spark plug threads.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: Can I read readings in different units?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Yes, the analog gauge shows 0–300 psi, 0–20 bar and 0–21 kg\/cm² on a single dial.\u003c\/p\u003e\n\u003c\/div\u003e\u003c\/section\u003e","brand":"BETOOLL","offers":[{"title":"Default Title","offer_id":48086308356254,"sku":"B083HYQZ7C","price":45.48,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0781\/2041\/9486\/files\/betooll-front-packaging_31251dc7-2d2d-477a-b6ab-591a6d8704a5.jpg?v=1785894689","url":"https:\/\/northtrailauto.ca\/products\/betooll-petrol-engine-compression-tester-kit-8pcs-triple-range-gauge-solid-brass-adapters","provider":"North Trail Auto","version":"1.0","type":"link"}