Description
xComplete OEM tune-up kit for the Cummins Onan QG4000 (4KY) generator, including ONAMAX 15W40 oil and all required maintenance parts.
This GPS Generator Parts Specialists tune-up kit is built specifically for the Onan QG4000 (4KY) RV generator. It brings together genuine Onan replacement parts and GPS-supplied tools so you can perform scheduled maintenance confidently. The kit targets the parts typically serviced during routine upkeep—engine oil, filters, and a fresh spark plug—plus clear guidance on oil specs and plug gap settings.
What exactly is included in this Onan QG4000 tune-up kit?
The kit assembles every OEM hard part required for a standard tune-up of the 4KY series generator. Components are matched to Onan part numbers to avoid compatibility issues and include the oil formulated for Spec A through N engines.
- ONAMAX 15W40 oil (2 bottles) — Onan PN 326-5336
- Onan spark plug — PN 167-0275
- Onan air filter — PN 140-3280
- Onan fuel filter — PN 149-2457
- GPS spark plug gap tool — PN 627-0560
- Printed guidance on oil selection and spark plug gap
How does this kit simplify regular maintenance?
Everything you need for a standard service visit is consolidated so you won’t have to hunt for correct part numbers. Using OEM parts reduces the risk of fitment problems and helps maintain the generator’s expected performance characteristics.
- Single purchase covers oil, filters, and ignition parts
- OEM part numbers ensure correct fit and function
- Included gap tool and documentation cut setup time
Which oil and service specs does the kit support?
The kit contains ONAMAX 15W40 meeting Onan’s Spec A through N requirements for the QG4000 engine. It also includes notes on how to choose the right oil and the correct spark plug gap, so you follow factory-recommended service intervals.
- ONAMAX 15W40 designed for Onan engine specifications
- Two bottles included to cover a full oil change
- Documentation specifies Spec A–N compatibility and gap specs
Do I need any extra tools or parts to complete a tune-up?
The kit supplies the main replacement parts and a spark plug gap tool, but a few common shop tools are still required for the job. You’ll need basic hand tools, a drain pan, and possibly a torque wrench for final spark plug installation if your service practice calls for torque specifications.
- Kit includes the plug gap tool; hand tools not included
- Bring a drain pan and rags for oil change work
- Torque wrench recommended for proper spark plug seating
Who is this for: This kit is aimed at RV owners, mobile technicians, and shop service teams who maintain Cummins Onan QG4000 (4KY) generators and prefer genuine Onan parts. It’s especially useful for those who want an all-in-one maintenance pack with the correct oil grade, factory part numbers, and a practical gap tool to keep generator performance reliable between professional services.
FAQ
Q: Is the oil in this kit compatible with Onan Spec A–N engines?
A: Yes. The kit includes ONAMAX 15W40 formulated to meet Onan specifications A through N for the QG4000.
Q: Will this kit cover a full oil change for the QG4000?
A: Yes. Two bottles of ONAMAX 15W40 are included to perform a complete oil change for the generator.
Delivery & Returns
xFree UK delivery on every order — packed within 1 business day, arriving in 2–4 business days.
Free 30-day returns — email us for a prepaid label; refunds land within 3–5 business days of the return arriving.
Why GardenLuxe
x- ✓ Proven best-sellers only — products UK gardens buy again and again
- ✓ Free UK delivery on every order
- ✓ Free 30-day returns with prepaid label
- ✓ Genuine products from reputable suppliers
- ✓ Human support — gardenluxe.co.uk@gmail.com
Care & Good To Know
x- Rugs & mats: hose down or machine wash per label; air-dry fully before storing.
- Shade cloth: use every grommet, tension with bungee ties, take down for winter storms.
- Fertilisers & plant food: always follow label dose rates; store sealed, dry and away from children and pets.
- Power tool parts: check bar length and pitch/gauge match your saw before fitting.
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