GPS Generator Parts Specialist Tune Up Kit for Cummins Onan RV Generators 5500/7000 (HGJAB, HGJAC, HGJAE) with ONAMAX 15W40 Oil

The GPS Generator Parts Specialist Tune Up Kit is designed for Cummins Onan RV generators, including the 5500 and 7000 series, with HGJAB, HGJAC and commercial HGJAE configurations. This kit brings together essential, OEM-grade hard parts so you can tackle routine maintenance with confidence. It also includes ONAMAX 15W40 oil, ready to help you complete a service without hunting for separate components. While this kit is built around common maintenance scenarios, it presents options that may support smoother operation and easier upkeep for carbureted units.

What’s included in the kit

• Onan ONAMAX 15W40 Oil (QTY: 2) PN: 326-5336
• Onan Oil Filter PN: 122-0836
• Onan Spark Plugs PN: 167-1638
• Onan Air Filter PN: 140-3116
• Onan Fuel Filter PN: 149-2341
• Cup-Type Oil Filter Wrench 420-0577AL

Note: To ensure you receive all items listed, please order from Generator Parts Specialists.

How this kit supports maintenance

• All components are chosen to cover common maintenance needs, from lubrication to filtration and ignition parts.
• The included oil and filters help protect moving parts during service and may contribute to smoother operation after reassembly.
• Yeah, the kit provides practical tools (wrench and gap tool) to simplify routine tasks and reduce downtime.

Why choose GPS and Onan OEM components

Using genuine Onan parts helps ensure compatibility with the generator design and maintains a consistent parts standard across service intervals. The alignment of part numbers and materials supports accurate replacements and straightforward service workflows.

Compatibility and usage notes

This kit is intended for Cummins Onan RV generators in the 5500 and 7000 family, including HGJAB, HGJAC and commercial HGJAE models. Refer to your service guide for torque specs and replacement intervals, and consider consulting a technician if you are unsure about any step.

Ordering and fulfillment

Ordering through Generator Parts Specialists helps ensure access to the complete set of items listed in this kit and a smooth purchasing experience for your maintenance project.