{"product_id":"gps-tune-up-kit-for-cummins-onan-qg4000-4ky-onamax-10w30-oem-parts-2-bottles","title":"GPS Tune-Up Kit for Cummins Onan QG4000 (4KY) — ONAMAX 10W30, OEM Parts, 2 Bottles","description":"\u003cp\u003e\u003cstrong\u003eComplete OEM tune-up kit for the Cummins Onan QG4000 (4KY) that includes ONAMAX 10W30 oil and all required Onan replacement parts for a proper maintenance service.\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cp\u003eThis GPS Generator Parts Specialist tune-up kit is curated for the Cummins Onan QG4000 (model 4KY) and contains only genuine Onan components plus GPS extras to simplify routine service. The set includes ONAMAX oil blended for Spec P through Spec R engines, factory air, fuel and spark plug parts, plus a spark plug gap tool and documentation so you can choose the right oil and set the plug gap correctly. Everything ships together to reduce ordering errors and ensure fit and performance.\u003c\/p\u003e\n\n\u003ch3\u003eWhich parts are included and why do they matter?\u003c\/h3\u003e\n\u003cp\u003eThe kit bundles the exact Onan OEM parts required for a standard maintenance interval, eliminating uncertainty about compatibility. Using the specified parts helps maintain the generator’s designed tolerances and filtration, and the ONAMAX oil supplied matches Cummins Onan specifications for this model range.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eONAMAX Oil 10W30 (Qty: 2) PN: A063E183 — correct viscosity for Spec P–R\u003c\/li\u003e\n  \u003cli\u003eSpark Plug PN: 167-0275 — factory electrode and heat range\u003c\/li\u003e\n  \u003cli\u003eAir Filter PN: 140-3280 — restores proper intake filtration\u003c\/li\u003e\n  \u003cli\u003eFuel Filter PN: 149-2457 — protects carburetor and fuel system\u003c\/li\u003e\n  \u003cli\u003eGPS Spark Plug Gap Tool PN: 627-0560 — sets OEM gap accurately\u003c\/li\u003e\n  \u003cli\u003ePrinted guidance — oil selection and spark plug gap specs\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eHow does this kit simplify maintenance for the QG4000?\u003c\/h3\u003e\n\u003cp\u003eInstead of sourcing multiple parts from different vendors, the kit delivers a single matched package that follows Onan’s maintenance recommendations. The included documentation explains oil spec choices and provides the correct spark plug gap, which reduces service time and guesswork.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eAll parts ship together to avoid missing components\u003c\/li\u003e\n  \u003cli\u003eOEM numbers ensure direct fit and compatibility\u003c\/li\u003e\n  \u003cli\u003eInstructions and gap tool make DIY servicing straightforward\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWill the provided ONAMAX 10W30 work for my engine spec?\u003c\/h3\u003e\n\u003cp\u003eThe kit’s ONAMAX 10W30 is selected to cover Cummins Onan service specs P through R for the QG4000 family. The documentation included explains when this viscosity is appropriate and how it aligns with the manufacturer’s recommendations so you can confirm correct use for your specific serial range.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eONAMAX PN: A063E183 labeled for Spec P–R engines\u003c\/li\u003e\n  \u003cli\u003eTwo bottles included to meet typical oil-change volume\u003c\/li\u003e\n  \u003cli\u003eDocumentation helps verify oil choice against serial\/model\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eCan I perform the service myself, or should a technician do it?\u003c\/h3\u003e\n\u003cp\u003eThe kit is designed for both competent DIYers and professional technicians. It provides OEM parts and tools needed for a standard tune-up; however, if you’re unfamiliar with generator servicing or safety procedures, a qualified service technician is recommended.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eIncludes spark plug gap tool and clear part numbers\u003c\/li\u003e\n  \u003cli\u003eFactory parts reduce risk of fitment issues\u003c\/li\u003e\n  \u003cli\u003eProfessional installation ensures warranty and safety compliance\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eWho this is for: RV owners, fleet operators, and service shops that maintain Cummins Onan QG4000 (4KY) generators and want a single, factory-correct package to perform routine maintenance. If you prefer genuine Onan components, need the correct oil for Spec P–R engines, and value clear documentation plus a gap tool, this GPS tune-up kit gives you the parts and guidance to complete the job confidently.\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 this kit include the correct oil for all QG4000 models?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Yes. It includes ONAMAX 10W30 selected for Cummins Onan Spec P–R engines; check your serial range in the included documentation.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: Are all parts genuine Onan OEM components?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Yes. All replacement parts are genuine Onan OEM; the spark plug gap tool is supplied by GPS.\u003c\/p\u003e\n\u003c\/div\u003e\u003c\/section\u003e","brand":"GPS","offers":[{"title":"Default Title","offer_id":56801622950228,"sku":"B096HYZ7DQ","price":194.57,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1063\/2652\/4244\/files\/gps-onan-qg4000-front-packaging.jpg?v=1786745247","url":"https:\/\/gardenluxe.co.uk\/products\/gps-tune-up-kit-for-cummins-onan-qg4000-4ky-onamax-10w30-oem-parts-2-bottles","provider":"Gardenluxe Uk","version":"1.0","type":"link"}