Generator Spare Parts
Cummins A065U664 EC-AGS+ Automatic Generator Start Controller for Gasoline & LP Generators
Cummins Onan 300-4943 Remote Start/Stop Panel with Hour Meter for Diesel RV Generators
Representative Photo, actual item may vary
Representative Photo, actual item may vary
Representative Photo, actual item may vary
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Why Generator Spare Parts Matter for RV & Marine Owners
Whether you're anchored offshore or parked at a remote campsite, your onboard generator is the heartbeat of your electrical system. It powers air conditioning, refrigeration, lighting, and essential electronics — often far from the nearest service center. That's why keeping a supply of quality generator spare parts on hand isn't just smart maintenance; it's a matter of comfort and safety.
Unlike automotive engines that benefit from easy roadside access to parts stores, RV and marine generators are frequently used in remote or off-grid environments. A failed fuel filter, a fouled spark plug, or a worn impeller can leave you without power for hours or days. Routine service with the right replacement parts keeps your generator running at peak output and extends its service life significantly.
What to Look for in Generator Spare Parts
Generator maintenance covers a broad spectrum of components. Understanding what to inspect — and replace — on a regular schedule can prevent costly breakdowns:
- Filters: Air filters, fuel filters, and oil filters are the frontline defense against contamination. They should be inspected at every service interval and replaced per the manufacturer's schedule.
- Spark Plugs: Worn or fouled plugs cause hard starting, misfires, and reduced power output. They are one of the most cost-effective maintenance items you can replace.
- Tune-Up Kits: All-in-one service kits bundle the most commonly replaced parts for a specific generator model, making scheduled maintenance straightforward and efficient.
- Impellers & Water Pump Parts: Critical for marine generators, impellers move raw water through the cooling system. A cracked or stiff impeller can cause rapid overheating.
- Maintenance Chemicals: Coil cleaners, fuel stabilizers, and specialty lubricants protect generator components during storage and active use.
Top Brands in Generator Spare Parts
Cummins (Onan Generators) is by far the most trusted name in RV and marine generator parts. With a legacy spanning decades of powering boats and motorhomes, Onan generators are renowned for their reliability. Genuine Onan Green Label Parts are built to exact product specifications — from filters and spark plugs to complete tune-up kits — ensuring maximum power output and generator longevity for both RV and marine applications.
Briggs & Stratton brings decades of small-engine expertise to the portable and standby generator segment. Their replacement parts — including carburetors, air filters, fuel filters, and spark plugs — are designed to keep portable generators ready to perform under demanding conditions, whether on the water or at the campsite.
Nu-Calgon rounds out the category with specialty maintenance chemicals and treatment products. Known for their expertise in HVAC and equipment maintenance, Nu-Calgon's chemical solutions help protect generator cooling systems and related components, making them a practical complement to any generator service routine.
Staying on Top of Generator Maintenance
Most manufacturers recommend servicing your generator every 150–200 hours of operation, or at least once per season. Always consult your owner's manual for model-specific intervals and part numbers. Using OEM-specified or equivalent-quality spare parts is the best way to protect your warranty and ensure the kind of reliability you need when you're miles from the nearest marina or service shop.