Description
122-0833 Oil Filter — Premium Replacement for Cummins Onan RV Generators
The iFJF 122-0833 Oil Filter is a full-flow spin-on lube filter engineered for Cummins Onan Quiet Diesel RV generators. With 30-micron filtration and 98% efficiency, it traps carbon deposits, metal wear particles, and combustion byproducts before they can damage your generator's engine bearings and oil pump. Manufactured to IATF 16949 quality standards.
Generator Compatibility
| Series |
Spec Range |
Generator Models |
| HDKAH |
Spec A–R |
RV QD 3200, 6000, 8000 |
| HDKAK |
Spec A–R |
RV QD 10000, 12500 |
| HDKAJ |
Spec A–L |
Late-model Quiet Diesel |
| HDKBA |
Spec A–E |
Older Quiet Diesel generators |
| HQDPA |
Spec A–C |
Quiet Diesel commercial series |
| HQDPC |
Spec C |
Quiet Diesel commercial |
Cross-Reference Part Numbers
| Brand |
Part Number |
| Cummins Onan (OEM) |
122-0833 |
| Fleetguard |
LF3591 |
| Baldwin |
B179 |
| WIX |
51064 |
| Fram |
PH3593A |
| John Deere |
AM101378 |
| Other |
PF1127, ML 1002 |
Specifications
| Spec |
Value |
| Filter Type |
Full-flow lube spin-on |
| Thread Size |
M20 × 1.5 mm |
| Filtration Rating |
30 micron |
| Efficiency |
98% |
| Height |
3.39 in (86 mm) |
| Outer Diameter |
3.02 in (77 mm) |
Key Benefits
-
Full-Flow Design — All engine oil passes through the filter media before reaching bearings, camshaft, and valve train. No bypass during normal operation.
-
Anti-Drainback Valve — Prevents oil from draining out of the filter when the generator is shut down, ensuring instant oil pressure on startup — critical for infrequently-used RV generators.
-
High Dirt-Holding Capacity — Cellulose/synthetic blend media holds more contaminants before reaching capacity, extending service intervals without bypass.
-
Spin-On Convenience — Standard spin-on design. Hand-tighten after gasket contact — no torque wrench needed.
When to Replace
Cummins Onan recommends oil and filter changes every 150 hours of generator runtime or annually. RV generators often sit unused for months — condensation and acid buildup in the oil are just as damaging as runtime wear. Change the oil filter with every oil change. If you run the generator in dusty conditions or use it as your primary power source while boondocking, consider 100-hour intervals.
Installation Tips
- Warm up the generator for 5 minutes to thin the oil, then shut down.
- Place a drain pan under the oil drain plug and filter.
- Remove the old filter with a strap wrench or cup-style filter wrench.
- Clean the filter mounting surface and apply a thin film of fresh oil to the new filter's gasket.
- Spin on by hand until gasket contacts the mounting surface, then hand-tighten an additional ¾ turn.
- Refill with oil, run the generator for 30 seconds, shut down, and check for leaks. Top off oil as needed.
Frequently Asked Questions
Q: What's the difference between this and a standard automotive oil filter?
A: This filter is specifically designed for the Cummins Onan generator engine — it has the correct thread pitch (M20×1.5), bypass valve setting, and anti-drainback valve for this application. A standard car filter may physically thread on but won't have the correct internal specs.
Q: Can I use this filter with synthetic oil?
A: Yes. Compatible with conventional, synthetic blend, and full synthetic diesel engine oils. For synthetic oil extended drain intervals, follow the oil manufacturer's recommendation — but do not exceed Cummins Onan's maximum of 150 hours between filter changes regardless of oil type.
Q: Does this come with the O-ring or gasket?
A: Yes, the rubber gasket is pre-installed on the filter. Lubricate it with clean oil before installation for a proper seal.
Q: Need the fuel filter and air filter too?
A: Check our Complete Maintenance Kit — includes this oil filter plus the 149-2513 fuel filter and 140-2897 air filter in one order. Or buy individually: 149-2513 fuel filter · 140-2897 air filter.
