{"product_id":"otc-compression-tester-kit-0-300-psi-25-flex-hose-with-multiple-adapters-and-hard-case","title":"OTC Compression Tester Kit 0–300 psi, 25\" Flex Hose with Multiple Adapters and Hard Case","description":"\u003cp\u003e\u003cstrong\u003eOTC 5606 Compression Tester Kit is a professional-grade toolset for diagnosing gasoline engines, delivering accurate 0–300 psi readings with versatile adapters and a durable storage case.\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cp\u003eWhether you're troubleshooting a passenger car, motorcycle, marine outboard, or small-engine equipment, a reliable compression test quickly reveals cylinder sealing and valve condition. The OTC 5606 pairs a large dual-scale gauge and extended flex hose with multiple thread adapters so you can test a wide variety of spark plug and threaded-plug seats without additional tools.\u003c\/p\u003e\n\n\u003ch3\u003eHow accurate and readable is the gauge?\u003c\/h3\u003e\n\u003cp\u003eThe kit uses a 2.5-inch dual-scale gauge that displays readings in psi and kPa for straightforward interpretation. Its chrome bezel and protective rubber boot help preserve the gauge face against shop impacts while the zero-adjust feature lets you re-zero for repeatable tests.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eRange: 0–300 psi and 0–2100 kPa\u003c\/li\u003e\n  \u003cli\u003e2.5\" dial for easy visibility\u003c\/li\u003e\n  \u003cli\u003eChrome bezel and rugged protective boot\u003c\/li\u003e\n  \u003cli\u003eManual zero-adjust for calibration on-site\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhat engine types and spark plug seats will this kit work on?\u003c\/h3\u003e\n\u003cp\u003eAdapters included with the 5606 accommodate most gasoline engine spark plug and threaded-plug seats, covering domestic, import, motorcycle, marine, and small engines. The adapter set fits both flat and tapered seat plugs so you can move between engine families without swapping kits.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eAdapters: 10mm, 12mm, 18mm thread sizes\u003c\/li\u003e\n  \u003cli\u003e14mm flex fittings — standard and long-reach 12\" versions\u003c\/li\u003e\n  \u003cli\u003eAdapters compatible with flat and tapered seats\u003c\/li\u003e\n  \u003cli\u003eWorks across a wide range of gasoline engines\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eHow does the hose and coupler design improve testing in tight spaces?\u003c\/h3\u003e\n\u003cp\u003eThe extra-long 25\" flex hose lets you position the gauge outside crowded engine bays for easier reading while cranking or running the engine. A quick coupler on the hose means fast connect\/disconnect without pressure loss, speeding up multi-cylinder checks.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003e25\" flexible hose for better access and gauge placement\u003c\/li\u003e\n  \u003cli\u003eQuick coupler for fast connection and release\u003c\/li\u003e\n  \u003cli\u003eReduced need to reach into confined engine compartments\u003c\/li\u003e\n  \u003cli\u003eFlex lines included for both standard and extended reach scenarios\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhat protects the components and helps long-term serviceability?\u003c\/h3\u003e\n\u003cp\u003eMetal parts receive a corrosion-resistant nickel plating for durability in workshop conditions, and a blow-molded hard case keeps everything organized when not in use. The kit also includes a small repair parts pack so common wear items can be replaced without delay.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eNickel-plated fittings resist corrosion\u003c\/li\u003e\n  \u003cli\u003eRugged blow-molded hard case with removable lid\u003c\/li\u003e\n  \u003cli\u003eIncluded repair parts kit for on-the-spot fixes\u003c\/li\u003e\n  \u003cli\u003eComponents designed for frequent professional use\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eWho is this for: The OTC 5606 Compression Tester Kit suits professional technicians and serious DIYers who need a single, reusable solution for compression testing across many gasoline engines. If you service cars, motorcycles, marine engines, or small engines and want a durable gauge, wide adapter coverage, and a case that keeps tools ready between jobs, this kit is built for that workload.\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: Does the OTC 5606 include adapters for both flat and tapered seats?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Yes. The kit includes 10mm, 12mm, and 18mm adapters that work on flat and tapered spark plug seats.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: Can I read the gauge from outside a crowded engine compartment?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Yes. The 25\" flexible hose and quick coupler let you place the gauge where it’s easy to view.\u003c\/p\u003e\n\u003c\/div\u003e\u003c\/section\u003e","brand":"OTC","offers":[{"title":"Default Title","offer_id":48081464000670,"sku":"B000R5CPAQ","price":156.89,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0781\/2041\/9486\/files\/otc-5606-front-gauge.jpg?v=1785805753","url":"https:\/\/northtrailauto.ca\/products\/otc-compression-tester-kit-0-300-psi-25-flex-hose-with-multiple-adapters-and-hard-case","provider":"North Trail Auto","version":"1.0","type":"link"}