Description
Overview
Keep your RV generator running reliably with this complete Cummins Onan maintenance filter kit. One package includes all three filters you need for a full generator service: the 149-2513 fuel filter, 122-0833 oil filter, and 140-2897 air filter. Designed for Onan Quiet Diesel (QD) HDKAH/HDKAK/HDKAJ and HQD series generators — the most popular diesel RV gensets on the road. Skip the dealer and save 40-50% with iFJF OEM-quality replacements.
What's Included
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149-2513 Fuel Filter: Primary fuel filtration, spin-on design, protects injection pump from water and debris
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122-0833 Oil Filter: Full-flow lube oil filtration, high-capacity media for extended service intervals
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140-2897 Air Filter: Panel-type engine air filter, high-dust capacity for dusty campgrounds and boondocking
Key Features
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Complete Kit: All three filters in one order — no hunting for individual part numbers
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OEM Specifications: Manufactured to Cummins Onan OE filtration standards
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Quick Service: Everything you need for a full generator maintenance session
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RV-Ready Packaging: Filters arrive clean and protected, ready for your service bay or campsite toolbox
Compatibility Table
| Generator Model |
Series |
kW Rating |
| HDKAH |
Quiet Diesel (QD) |
7.5-8.0 kW |
| HDKAK |
Quiet Diesel (QD) |
7.5-8.0 kW |
| HDKAJ |
Quiet Diesel (QD) |
7.5-8.0 kW |
| HQDPA |
Quiet Diesel |
10.0-12.5 kW |
| HQDPC |
Quiet Diesel |
10.0-12.5 kW |
Specifications
| Filter |
Part Number |
Type |
| Fuel Filter |
149-2513 / FS1242 |
Spin-On Fuel/Water Separator |
| Oil Filter |
122-0833 / LF14000NN |
Spin-On Full-Flow Oil |
| Air Filter |
140-2897 / AF27906 |
Panel Air |
Service Interval Guide
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Oil + Oil Filter: Every 150 hours or annually
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Fuel Filter: Every 300 hours or annually
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Air Filter: Every 300 hours or annually (more frequent in dusty conditions)
Why iFJF for RV Maintenance?
- Filters manufactured to ISO 4548 (fuel) and ISO 4548-12 (oil) standards
- One-stop shop — fuel + oil + air filters in a single kit
- Bulk savings vs buying individual filters at RV dealerships
- An often-overlooked maintenance item that prevents costly generator breakdowns in remote locations
FAQ
Q: Will this kit fit my Onan 5500 generator?
A: The Onan 5500 (HGJAA/HGJAB) uses different filters (122-0836 oil filter). This kit is specifically for the Quiet Diesel HDKAH/HDKAK/HDKAJ and HQD series. Please verify your generator model number before ordering.
Q: How often should I service my RV generator?
A: Cummins Onan recommends oil and filter changes every 150 hours, with fuel and air filters every 300 hours. However, for full-time RVers or generators used in dusty environments, more frequent service is recommended.
Q: Can I use these filters on a marine Onan generator?
A: Check your marine generator's specific model. Some marine MDK-series Onans use the same filters as the RV HDKA series, but always verify by part number cross-reference.
Q: Is it hard to change these filters myself?
A: All three filters are accessible from the generator service panel. Oil and fuel filters are spin-on (use a filter wrench). The air filter is a clip-in panel. Basic mechanical skills and 30-45 minutes are all you need for a complete service.
