Description
Product Overview
Keep your RV generator running smoothly with this premium replacement air filter for Cummins Onan 5500 and 7000 Marquis Gold / RV QG series generators. This direct replacement for part number 140-3116 provides OEM-equivalent filtration performance at a value price point.
A clean air filter is critical for generator performance — dirty or clogged filters cause hard starting, rough running, increased fuel consumption, and accelerated engine wear. Replace annually or every 150 hours of operation for optimal performance.
Key Features
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Direct OEM Replacement — Replaces Cummins Onan 140-3116
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High-Capacity Pleated Media — Maximizes dirt-holding capacity for extended service intervals
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Precision-Fit Frame — Drops into factory air box with no modifications
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Oil-Free Synthetic Media — No oiling required, no MAF sensor contamination risk
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ISO 5011 Tested — Meets or exceeds OEM filtration efficiency standards
Compatibility
| Generator Series |
Models |
| Cummins Onan Marquis Gold |
5500, 7000 |
| Cummins Onan RV QG |
5500, 7000 |
| Part Number |
140-3116 |
Specifications
| Specification |
Value |
| Filter Type |
Panel Air Filter (Dry) |
| Media |
Synthetic Pleated |
| Service Interval |
150 Hours or 12 Months |
| Fitment |
OEM Drop-In Replacement |
Why Replace Your RV Generator Air Filter?
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Easier Starting — Restricted airflow makes generators hard to start
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Better Fuel Economy — Clean filter = proper air/fuel ratio = less fuel burned
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Longer Engine Life — Filtration prevents abrasive dust from entering cylinders
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Full Power Output — Don't let a clogged filter rob you of wattage when you need it most
Frequently Asked Questions
Q: How do I know when to replace my generator air filter?
A: Visual inspection is best — if the filter appears dark, dirty, or clogged, replace it. Cummins Onan recommends replacement every 150 hours of operation or annually, whichever comes first. Replace more often in dusty environments.
Q: Will this fit my Onan 5500 Marquis Gold?
A: Yes, this is a direct OEM replacement for all Cummins Onan 5500 and 7000 Marquis Gold and RV QG series generators.
Q: Does this filter need to be oiled?
A: No. This is a dry synthetic media filter — no oiling required. Simply drop it in. Oil-type filters can contaminate MAF sensors and are not recommended for generator applications.
Q: Can I clean and reuse this filter?
A: No, this is a single-use disposable filter. Attempting to clean it can damage the filter media and reduce filtration efficiency. Replace with a new filter at each service interval.
Installation
- Turn off generator and allow to cool
- Locate air filter housing (typically on side of generator)
- Release housing clips or screws
- Remove old filter and dispose properly
- Insert new filter — ensure proper orientation
- Re-secure housing and start generator to verify
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