Onan Cummins Diesel Tune-Up Kit | OEM Parts for HDKAJ, HDKAK, HDKAT (Specs A-K)
$174.99 on Amazon.com (as of October 15, 2026, 9:57 AM EST) View details ↗
Keep your Cummins Onan diesel generator running smoothly with this **OEM-certified tune-up kit** designed exclusively for the HDKAJ, HDKAK, and HDKAT models (specs A-K). Built for the Quiet Diesel 6000, 7500, and 8000 series, this kit includes everything you need to perform essential maintenance—no guesswork, just factory-approved parts.
This kit delivers **all hard parts and 3 quarts of premium Onamax 15W40 oil** (PN: 326-5336) to ensure optimal engine protection and performance. The package includes an Onan air filter (PN: 140-2897), fuel filter (PN: 149-2513), oil filter (PN: 122-0833), and an oil filter wrench—all sourced directly from Onan for perfect compatibility. Whether you're preparing for seasonal use or addressing routine wear, this kit simplifies maintenance with genuine OEM components that extend engine life and reliability.
| Oil Quantity | 3 quarts (7080 mL) Onamax 15W40 |
|---|---|
| Compatible Models | Onan Cummins HDKAJ, HDKAK, HDKAT (specs A-K) |
| Included Parts | Air filter, fuel filter, oil filter, oil filter wrench |
| Oil Type | Onamax 15W40 (OEM specification) |
| Filter Part Numbers | Air: 140-2897 | Fuel: 149-2513 | Oil: 122-0833 |
| Oil Filter Wrench Included | Yes |
