Specifications
Ratings spec sheet not in our library yet — see the documents below.
Filters & service parts
model family| Item | Spec | Capacity | Part # | Interval | |
|---|---|---|---|---|---|
| Fuel filter | FF5776/FF5825/OEM | 15000 hr | PartsGeek | ||
| Oil filter | LF9070 | 15000 hr | eBay $51.00 PartsGeek | ||
| Coolant filter | — | 50000 hr | find | ||
| Oil | Cummins CES20086 specification (API classification CK-4) | 2.0 gallons | — |
Compiled from this model's family documentation — may include parts for closely-related variants. Confirm the exact part for your serial number.
Common questions
What oil filter does the Cummins/Onan X12 use?
The Cummins/Onan X12 uses oil filter part number LF9070.
What fuel filter does the Cummins/Onan X12 use?
The Cummins/Onan X12 uses fuel filter part number FF5776/FF5825/OEM.
Parts
8model family| Part # | Description | Qty | System | |
|---|---|---|---|---|
| B4.5 | 90-149 kW (120-200 hp) | 1 | Engine | PartsGeek |
| B6.7 | 116-209 kW (155-280 hp) | 1 | Engine | PartsGeek |
| CV50626 | Crankcase Breather Element | 1 | Crankcase breather element | PartsGeek |
| CV50633 | Crankcase Breather Element | 1 | Crankcase breather element | PartsGeek |
| F3.8 | 55 kW (74 hp) | 1 | Engine | PartsGeek |
| FF5776 | Fuel Filter (Pressure) | 1 | Fuel filter | PartsGeek FridayParts $69.00 |
| FF5825 | Fuel Filter (Pressure) | 1 | Fuel filter | PartsGeek |
| LF9070 | Lubricating Oil Filter | 1 | Oil filter | eBay $51.00 PartsGeek |
Compiled from this model's family documentation — may include parts for closely-related variants. Confirm the exact part for your serial number. See the full parts catalog to search and cross-reference.
Available documents
Engine spec — 0032425 (Cummins/Onan)Engine spec — 0042716 (Cummins/Onan)Engine spec — 0043122 (Cummins/Onan)Spec sheet — 0042819 (Cummins/Onan)Spec sheet — 0058406 (Cummins/Onan)Reference — 0063004 (Cummins/Onan)Reference — 0063474Reference — 0064323 (Cummins/Onan)Service manual — 0060933 (Cummins/Onan)