Service parts for the NT855
Grouped by system, with how many of each the parts manual calls for.
Air intake
1 requiredFuel system
1 requiredPrices captured from merchant listings; some links are affiliate links. Confirm against your serial number before ordering.
Specifications
Ratings spec sheet not in our library yet — see the documents below.
Filters & service parts
model family| Item | Spec | Capacity | Part # | Interval | |
|---|---|---|---|---|---|
| Air filter | Part Number of Standard Air Filter Element ....................................................3022209 | 3022209 | Amazon eBay $74.95 FridayParts $44.99 | ||
| Fuel filter | Part Number of Standard Fuel Filter.................................................................................. 3315847 | 3315847 | Amazon eBay $16.99 FridayParts $41.10 | ||
| Oil filter | Part Number of Standard Oil Filter Element ......................................................................3889310 | — | |||
| Battery | — | ||||
| Belt | — | ||||
| Coolant filter | — | ||||
| Oil | Full Flow Lube Oil Filter Capacity - U.S. gal. (litre).............................................................7.6 (28.8) | — | |||
| Spark plug | — |
Compiled from this model's family documentation — may include parts for closely-related variants. Confirm the exact part for your serial number.
Common questions
Which fuel filter part number does the Cummins/Onan NT855 take?
The Cummins/Onan NT855 uses fuel filter part number 3315847.
What air filter fits the Cummins/Onan NT855?
The Cummins/Onan NT855 uses air filter part number 3022209.
Parts
1model family| Part # | Description | Qty | System | |
|---|---|---|---|---|
| 4919115 | CM2250 wiring test lead and harness repair kit | 1 | Service part / kit | buy |
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 — 0057333 (Cummins/Onan)Engine spec — fr1399 (Cummins/Onan)Engine spec — fr1419 (Cummins/Onan)Spec sheet — NT855-G6 (Cummins/Onan)Reference — Schedule Technical2012 (Cummins/Onan)