{"product_id":"cummins-spark-plug-for-onan-microquiet-3600-4000-167-0275-direct-fit-replacement-pre-gapped-ignition-part","title":"Cummins spark plug for Onan MicroQuiet 3600\/4000 — 167-0275 direct-fit replacement, pre-gapped ignition part","description":"\u003cp\u003e\u003cstrong\u003eHigh-quality Cummins\/Onan 167-0275 spark plug engineered to restore reliable ignition in MicroQuiet 3600 and 4000 generator models.\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cp\u003eIf your RV or portable power setup uses an Onan MicroQuiet 3600 or 4000 generator, the Cummins 1670275 spark plug is a direct-fit replacement designed to meet the original equipment specifications. This single spark plug (also listed as 167-0275 or part number 690781000520) provides the correct dimensions and performance characteristics for these compact generators, with overall package dimensions roughly 3.3 inches long, 1.3 inches wide, and 0.88 inches tall, and a light weight to match factory components.\u003c\/p\u003e\n\n\u003ch3\u003eWhat makes this spark plug the right choice for MicroQuiet generators?\u003c\/h3\u003e\n\u003cp\u003eThe Cummins 167-0275 is manufactured to the tolerances and materials expected for Onan service parts, ensuring consistent ignition and compatibility. It fits the combustion chamber geometry of MicroQuiet 3600 and 4000 models so you don’t have to modify the engine or use adapters.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eExact OE-compatible fit for Onan MicroQuiet 3600\/4000\u003c\/li\u003e\n  \u003cli\u003eStandard pre-gapped for generator ignition systems\u003c\/li\u003e\n  \u003cli\u003eCompact physical size: approximately 3.3\" length\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eHow do I install the Cummins 1670275 in my generator?\u003c\/h3\u003e\n\u003cp\u003eInstallation is straightforward for anyone familiar with basic generator maintenance: disconnect the ignition source, remove the old spark plug with a socket wrench, inspect the boot and wire, then thread in the new plug and torque to the manufacturer’s specification. Reconnect the ignition lead and test run the generator to confirm steady starting and operation.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eAlways disconnect power and allow engine to cool first\u003c\/li\u003e\n  \u003cli\u003eUse a spark-plug socket and torque wrench for correct tightening\u003c\/li\u003e\n  \u003cli\u003eInspect and replace the ignition boot or wire if worn\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eHow often should I replace this spark plug to maintain performance?\u003c\/h3\u003e\n\u003cp\u003eReplacement interval depends on usage and operating conditions; recreational or seasonal use may require replacement less frequently than continuous service. Inspect the plug during routine maintenance and replace when electrodes are eroded, fouled, or if starting becomes inconsistent.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eCheck plug condition during each major service or annual tune-up\u003c\/li\u003e\n  \u003cli\u003eReplace sooner if exposed to heavy soot, oil, or wet fuel\u003c\/li\u003e\n  \u003cli\u003eKeep a spare plug on hand for trips or extended deployments\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhat are the physical and shipping details I should know?\u003c\/h3\u003e\n\u003cp\u003eThis item ships as a lightweight, compact package with dimensions suitable for single-item shipping: about 1.8 cm L x 2.5 cm W x 10.2 cm H with a packaged weight around 0.068 kg (0.15 lb). It is manufactured in China to Cummins\/Onan part specifications.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003ePackage weight: ~0.068 kg (0.15 lb)\u003c\/li\u003e\n  \u003cli\u003ePackage dimensions: ~1.8 x 2.5 x 10.2 cm\u003c\/li\u003e\n  \u003cli\u003eOrigin: China, produced to OEM standards\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eWho is this for? RV owners, mobile service technicians, and anyone maintaining Onan MicroQuiet 3600 or 4000 generators will benefit from keeping a Cummins 167-0275 spark plug in their parts kit. It’s intended for routine maintenance and emergency replacement to restore proper ignition and reliable starting without modification. Choose this plug when you need a compact, OEM-compatible replacement that matches factory fit, form, and function.\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: Is the 167-0275 spark plug compatible with Onan MicroQuiet 3600 and 4000?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Yes. The Cummins 167-0275 is a direct-fit replacement for Onan MicroQuiet 3600 and 4000 generator models.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: What are the package dimensions and weight?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Packaged dimensions are approximately 1.8 x 2.5 x 10.2 cm and the weight is about 0.068 kg (0.15 lb).\u003c\/p\u003e\n\u003c\/div\u003e\u003c\/section\u003e","brand":"Cummins","offers":[{"title":"Default Title","offer_id":67594791977145,"sku":"B003ZOLRSM","price":52.54,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0822\/3765\/3177\/files\/cummins-onan-spark-plug-front-view.jpg?v=1790585225","url":"https:\/\/redleafauto.ca\/products\/cummins-spark-plug-for-onan-microquiet-3600-4000-167-0275-direct-fit-replacement-pre-gapped-ignition-part","provider":"Redleaf Auto","version":"1.0","type":"link"}