{"product_id":"cummins-onan-spark-plug-167-0275-for-microquiet-3600-4000-direct-fit-oem-replacement-reliable-ignition","title":"Cummins Onan Spark Plug 167-0275 for MicroQuiet 3600\/4000 — Direct-Fit OEM Replacement, Reliable Ignition","description":"\u003cp\u003e\u003cstrong\u003eThe Cummins 1670275 Onan spark plug is a direct-fit replacement designed to restore reliable ignition in Onan MicroQuiet 3600 and 4000 series generators.\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cp\u003eWhen your portable generator needs dependable starting and steady combustion, using the correct spark plug matters. The Cummins\/Onan 167-0275 spark plug is manufactured to Cummins specifications for factory compatibility with MicroQuiet 3600 and 4000 models. It arrives as a compact, ready-to-install ignition component with consistent dimensions and a lightweight profile that makes handling and swapping straightforward.\u003c\/p\u003e\n\n\u003ch3\u003eHow does the 1670275 spark plug fit my MicroQuiet generator?\u003c\/h3\u003e\n\n\u003cp\u003eDesigned as a direct replacement for Onan MicroQuiet 3600 and 4000 generators, this spark plug matches the OEM form factor and electrical requirements. Installers can expect the same reach and electrode placement as the original equipment, so no engine modification is necessary.\u003c\/p\u003e\n\n\u003cul\u003e\n  \u003cli\u003eCompatible models: Onan MicroQuiet 3600 \u0026amp; 4000\u003c\/li\u003e\n  \u003cli\u003eOEM part reference: Cummins\/Onan 167-0275\u003c\/li\u003e\n  \u003cli\u003eDirect-fit design for straightforward replacement\u003c\/li\u003e\n  \u003cli\u003eNo adapter or special tools required for typical installations\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhat are the physical specs and packaging details?\u003c\/h3\u003e\n\n\u003cp\u003eThe replacement spark plug is compact and lightweight for easy handling during maintenance. Package dimensions and weight reflect a small, protective retail pack that is convenient to store and identify among service parts.\u003c\/p\u003e\n\n\u003cul\u003e\n  \u003cli\u003eOverall spark plug length: 3.3 (as specified by manufacturer)\u003c\/li\u003e\n  \u003cli\u003eApproximate width: 1.3 and height: 0.88 (manufacturer data)\u003c\/li\u003e\n  \u003cli\u003eItem package weight: about 0.068 kg (0.15 lb listed in some sources)\u003c\/li\u003e\n  \u003cli\u003ePackage size: 1.8 cm L x 2.5 cm W x 10.2 cm H\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhy choose the Cummins\/Onan branded replacement over generic plugs?\u003c\/h3\u003e\n\n\u003cp\u003eBranded Cummins\/Onan spark plugs are manufactured to meet the original equipment tolerances and performance targets for Onan engines. That reduces the risk of fitment issues and helps maintain the generator’s designed ignition timing and combustion characteristics.\u003c\/p\u003e\n\n\u003cul\u003e\n  \u003cli\u003eMade to Cummins\/Onan specifications for reliable compatibility\u003c\/li\u003e\n  \u003cli\u003eConsistent electrode geometry and materials for expected performance\u003c\/li\u003e\n  \u003cli\u003eReduces troubleshooting time compared with mismatched aftermarket plugs\u003c\/li\u003e\n  \u003cli\u003eBacked by Cummins\/Onan part numbering for easier parts tracking\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eHow should I replace the spark plug, and what basic precautions are recommended?\u003c\/h3\u003e\n\n\u003cp\u003eReplacement is a routine service task on small generators but should be done with the engine cool and following safety steps. Use the correct spark plug socket, torque to the manufacturer’s recommended specification, and inspect the ignition wire and boot for wear while replacing the plug.\u003c\/p\u003e\n\n\u003cul\u003e\n  \u003cli\u003eEnsure engine is cool and ignition off before starting work\u003c\/li\u003e\n  \u003cli\u003eUse an appropriate spark plug socket and torque wrench for correct tightening\u003c\/li\u003e\n  \u003cli\u003eCheck and, if needed, replace the ignition boot and wire to ensure good contact\u003c\/li\u003e\n  \u003cli\u003eFollow generator manual torque specs and gap recommendations if present\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eWho is this for: The Cummins 1670275 Onan spark plug is aimed at RV owners, mobile contractors, and homeowners who maintain Onan MicroQuiet 3600 or 4000 generators and want a factory-equivalent replacement part. It suits do-it-yourselfers who perform routine generator maintenance and service technicians who need dependable, specification-matching ignition components for small portable or onboard generator repairs.\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 1670275 spark plug compatible with Onan MicroQuiet 3600?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Yes. The Cummins\/Onan 167-0275 is specified as a direct replacement for Onan MicroQuiet 3600 models.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: Where is this spark plug manufactured?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: This spark plug is produced in China and shipped in a compact retail package.\u003c\/p\u003e\n\u003c\/div\u003e\u003c\/section\u003e","brand":"Cummins","offers":[{"title":"Default Title","offer_id":55162261864791,"sku":"B003ZOLRSM","price":29.52,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1050\/1524\/7191\/files\/cummins-onan-spark-plug-front-view.jpg?v=1790335557","url":"https:\/\/britishgarage.co.uk\/products\/cummins-onan-spark-plug-167-0275-for-microquiet-3600-4000-direct-fit-oem-replacement-reliable-ignition","provider":"British Garage","version":"1.0","type":"link"}