Service parts for the N14
Grouped by system, with how many of each the parts manual calls for.
Oil 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 | — | 2000 hr | |||
| Fuel filter | — | 6000 hr | |||
| Oil filter | 3375049 | 1500 hr | Amazon eBay | ||
| Battery | — | 1500 hr | |||
| Belt | — | 6000 hr | |||
| Coolant | — | 6000 hr | |||
| Coolant filter | correct coolant filter determined by total cooling system capacity and oil drain interval | — | 250 hr | ||
| Oil | Cummins published Standard Repair Time guidelines | — | 6000 hr | ||
| Spark plug | — | 10800 hr |
Compiled from this model's family documentation — may include parts for closely-related variants. Confirm the exact part for your serial number.
Service intervals
1| Item | Action | Hours | Months | Notes |
|---|---|---|---|---|
| ELIMINATOR self cleaning filter core | Other | 1500 hr | Requires servicing only every 1,500 hours. Saves up to 90% of lube system maintenance costs and increases productivity. |
Extracted from the manufacturer documentation linked to this model. Values are copied as printed; confirm against your unit's manual and serial number.
Service specifications
34| Type | Item | Value | Unit | Condition |
|---|---|---|---|---|
| Other | Brake Mean Effective Pressure | 1277 | kPa | at rated conditions |
| Other | Compression Ratio | 17.0:1 | ||
| Other | DB9F-DB9M serial cable length (Part Number 4918418) | 1.83 | M | |
| Other | Extension DB9F to DB9M length (Part Number 3162851) | 30.48 | M | |
| Other | INLINE™5 datalink adapter current requirement | 250 | mA | at +8 VDC to +50 VDC |
| Other | Rated HP Production Tolerance | ±3 | % | |
| Other | USB cable length (Part Number 4918419) | 2 | M | |
| Other | USB cable length (Part Number 4918591) | 5 | M | |
| Pressure | Fuel Rail Pressure - Gauge | 1022 | kPaG | |
| Pressure | Fuel Rail Pressure - Gauge | 771 | kPaG | |
| Pressure | Intake Manifold Pressure | 1136 | mm Hg | at rated conditions |
| Pressure | Intake Manifold Pressure | 816 | mm Hg | at rated conditions |
| Pressure | Pressure Cap Rating (With Heat Exchanger Option) | 103 | kPa | |
| Speed | High Idle Speed Range - Maximum | 2150 | RPM | |
| Speed | High Idle Speed Range - Minimum | 2040 | RPM | |
| Speed | Maximum Allowable Engine Speed | 2350 | RPM | |
| Speed | Minimum Idle Speed Setting | 650 | RPM | |
| Speed | Normal Idle Speed Variation | ±25 | RPM | |
| Speed | Piston Speed | 9 | m/sec | [1800 ft/min.] |
| Speed | Rated Engine Speed | 1800 | RPM | rated |
| Temperature | Approximate Fuel Return to Tank Temperature | 64 | °C | |
| Temperature | Approximate Fuel Return to Tank Temperature | 66 | °C | |
| Temperature | LTA Thermostat Operating Range (Full Open) | 78 | °C | |
| Temperature | LTA Thermostat Operating Range (Start to Open) | 70 | °C | |
| Temperature | Maximum Allowable Fuel Supply to Pump Temperature | 60 | °C | |
| Temperature | Standard Thermostat Operating Range (Full Open) | 80 | °C | Main Cooler (Engines with Low Temperature Aftercooling) |
| Temperature | Standard Thermostat Operating Range (Full Open) - Main Cooler (Low Temperature Aftercooling) | 80 | °C | |
| Temperature | Standard Thermostat Operating Range (Start to Open) | 71 | °C | Main Cooler (Engines with Low Temperature Aftercooling) |
| Temperature | Standard Thermostat Operating Range (Start to Open) - Main Cooler (Low Temperature Aftercooling) | 71 | °C | |
| Torque | Maximum Torque Capacity from Front of Crank | 1353 | N•m | Consult Installation Direction Booklet for Limitations |
| Torque | Peak Engine Torque | 1653 | N•m | at rated conditions |
| Torque | Rated Engine Torque | 1424 | N•m | at rated conditions |
| Voltage | INLINE™5 datalink adapter supply voltage (maximum) | +50 | VDC | power lamp fast flashing indicates greater than maximum |
| Voltage | INLINE™5 datalink adapter supply voltage (minimum) | +8 | VDC | power lamp slow flashing indicates less than minimum |
Extracted from the manufacturer documentation linked to this model. Values are copied as printed; confirm against your unit's manual and serial number.
Recommended fluids
| Fluid | Grade | Standard | Ambient | Capacity | Notes |
|---|---|---|---|---|---|
| Coolant | 50% water / 50% ethylene glycol mix | Heat rejection values are based on 50% water / 50% ethylene glycol mix and do NOT include fouling factors. | |||
| Coolant | 50% water/50% ethylene glycol mix | Heat rejection values are based on 50% water/50% ethylene glycol mix and do NOT include fouling factors; if sourcing your own cooler, apply a service fouling factor per the cooler manufacturer's recommendation. |
Extracted from the manufacturer documentation linked to this model. Values are copied as printed; confirm against your unit's manual and serial number.
Procedures
1Connect the INLINE™5 Datalink Adapter to a Personal Computer installation
⚠ A fully populated USB cable, Part Number 4918419, or DB9F-DB9M serial cable, Part Number 4918418, must be used.
- Connect the DB9F-DB9M serial cable, Part Number 4918418, or USB cable, Part Number 4918419, to the computer.
- Connect the other end of that cable to the INLINE™5 datalink adapter, Part Number 3165033.
- Supply +8 VDC to +50 VDC at 250mA through the OEM connector or a separate power source.
- Connect the appropriate datalink cable to the INLINE™5 datalink adapter, Part Number 3165033.
- Connect the other end of the datalink cable to the vehicle cab or engine compartment datalink connector.
- Launch the electronic service tool application software.
Extracted from the manufacturer documentation linked to this model. Values are copied as printed; confirm against your unit's manual and serial number.
Common questions
What oil filter fits the Cummins/Onan N14?
The Cummins/Onan N14 uses oil filter part number 3375049.
Troubleshooting
4Fault codes
| Code | Meaning |
|---|---|
| 00100047 | Fuel Pump Side |
| 91800ge | Cold Weather Starting Using Starting Fluid |
| 244 | Pe |
| 112 | Stop |
Fault codes and symptom→remedy steps extracted from this model’s service/owner documentation; verify against the official manual before servicing.
Parts
135model family| Part # | Description | Qty | System | |
|---|---|---|---|---|
| 08500039 | sea water pump screw | Screw | Amazon eBay | |
| 08600042 | sea water pump housing | Housing | Amazon eBay | |
| 08600043 | sea water pump gasket | Gasket | Amazon eBay | |
| 08600119 | sea water pump impeller | Impeller | Amazon eBay | |
| 109080 | SEAL,O RING | 2 | Gasket | FridayParts $192.99 |
| 19200074 | Buzzer | Engine harness adaptor cable | Amazon eBay | |
| 1920087 | Oil Pressure Sensor | Sensor | Amazon eBay | |
| 1920088 | Intake Manifold Pressure Sensor | Sensor | Amazon eBay | |
| 1920090 | ECM | ECM / ECU | Amazon eBay | |
| 1920096 | Fuel Pump Gear Pump | Fuel pump | Amazon eBay | |
| 1920097 | Oil Temperature Sensor | Sensor | Amazon eBay | |
| 1920098 | Engine Position Speed Sensor (behind lubricating oil pump) | Sensor | Amazon eBay | |
| 1920099 | Coolant Temperature Sensor (in thermostat housing) | Thermostat | Amazon eBay | |
| 1920100 | Coolant Level Sensor (in radiator) - Optional | Sensor | Amazon eBay | |
| 1920101 | Intake Manifold Temperature Sensor | Sensor | Amazon eBay | |
| 1920102 | Ambient Air Pressure Sensor (when required) | Sensor | Amazon eBay | |
| 19800109 | Engine Speed Sensor | Engine speed sensor | Amazon eBay | |
| 19801556 | ECM | ECM / ECU | Amazon eBay | |
| 19801560 | Fuel Block | Fuel block | Amazon eBay | |
| 19801564 | CENTRY™ STC Actuator Lead Wire | Electronic fuel control valve | Amazon eBay | |
| 19801565 | Fuel Pressure Sensing Line | Fuel pressure sensing line | Amazon eBay | |
| 19801567 | Main Engine Harness | Main engine harness | Amazon eBay | |
| 19801568 | Rail Pressure Sensor | Rail pressure sensor | Amazon eBay | |
| 256837 | Air Compressor Air Cleaner Element - Two-Cylinder, Sponge Element | 1 | Air filter | Amazon eBay |
| 3020183 | SEAL,OIL | 1 | Gasket | buy |
| 3020943 | GASKET,EXHAUST MANIFOLD | 6 | Gasket | buy |
| 3069177 | GASKET,TURBOCHARGER | 1 | Gasket | buy |
| 3069678 | SEAL,OIL | 2 | Gasket | FridayParts $192.99 |
| 3070477 | GASKET,OIL COOLER SUPPO | 1 | Gasket | buy |
| 3072341 | GASKET,OIL TRF CONNECTION | 1 | Gasket | buy |
| 3076203 | SEAL,DUST | 1 | Gasket | buy |
| 3087799 | Camshaft | 1 | Pump | FridayParts $934.56 |
| 3099083 | GASKET,OIL PAN | 1 | Gasket | FridayParts $26.91 |
| 3102314 | GASKET, TURBOCHARGER | 1 | Gasket | FridayParts $43.99 |
| 3163196 | torque wrench adapter | Adapter | Amazon eBay | |
| 3318853 | Combination Full-Flow/Bypass Lubricating Oil Filter | 1 | Oil filter | Amazon eBay $74.95 NAPA $66.59 |
| 3682940 | GASKET, EXHAUST MANIFOLD | 1 | Gasket | FridayParts $39.00 |
| 3822524 | Use on v-belts ( 3/8 to 7/8) and v-ribbed belts with 5 ribs or less. | 1 | Belt | Amazon eBay |
| 3822697 | Injector Puller | 1 | Injector | Amazon eBay |
| 3823348 | STC Injector Tappet Retaining Tool (IBC method) | Injector | Amazon eBay | |
| 3823579 | CELECT™ Injector Puller | 1 | Injector | Amazon eBay |
| 3824653 | STC Injector Puller | Injector | Amazon eBay | |
| 3865235 | GASKET,EXHAUST MANIFOLD | 3 | Gasket | buy |
| 4058949 | GASKET,GEAR COVER | 1 | Gasket | FridayParts $45.99 |
| 49200083 | ECM | ECM / ECU | Amazon eBay | |
| 4955383 | SEAL, OIL | 1 | Gasket | buy |
| 4962722 | SEAL, RECTANGULAR STRIP | 1 | Gasket | buy |
| 4965690 | GASKET, ACC DRIVE SUPPOR | 1 | Gasket | buy |
| 4973108 | THERMOSTAT | 1 | Thermostat | FridayParts $149.68 |
| 4985562 | GASKET, GEAR HOUSING | 1 | Gasket | FridayParts $73.49 |
| 50121-43698 | Fuel Shutoff Valve | 1 | Fuel filter | Amazon eBay |
| 50121-43700 | Thermostat | 1 | Thermostat | Amazon eBay |
| 5486657 | GASKET, EXHAUST MANIFOLD | 4 | Gasket | buy |
| 5579049 | KIT, AIR COMPRESSOR | 1 | Kit | buy |
| 5579051 | KIT,SERVICE | 1 | Kit | buy |
| 5579052 | KIT,OIL COOLER | 1 | Kit | buy |
| 5579053 | KIT, EXHAUST MANIFOLD | 1 | Kit | buy |
| 5579054 | KIT, EXHAUST MANIFOLD | 1 | Kit | buy |
| 5579055 | KIT, EXHAUST MANIFOLD | 1 | Kit | buy |
| 5579056 | KIT, EXHAUST MANIFOLD | 1 | Kit | buy |
| 5579057 | KIT,EXHAUST MANIFOLD | 1 | Kit | buy |
| 5579058 | KIT,EXHAUST MANIFOLD | 1 | Kit | buy |
| 5579059 | KIT,EXHAUST MANIFOLD | 1 | Kit | buy |
| 5579060 | KIT,EXHAUST MANIFOLD | 1 | Kit | buy |
| 5579061 | KIT, GEAR COVER | 1 | Kit | buy |
| 5579062 | KIT, GEAR HOUSING | 1 | Kit | buy |
| 5579063 | KIT,GEAR COVER | 1 | Kit | buy |
| 5579064 | KIT,OIL PAN | 1 | Kit | buy |
| 5579065 | KIT,OIL PAN | 1 | Kit | buy |
| 5579066 | KIT,THERMOSTAT | 1 | Kit | buy |
| 5581347 | Engine wiring harness | 1 | Hose | buy |
| 19100001 | Idle Shutdown Feature | Service part / kit | Amazon eBay | |
| 19100064 | Automotive Governor with Droop | Service part / kit | Amazon eBay | |
| 19160001 | Automotive Governor | Service part / kit | Amazon eBay | |
| 19200073 | WARNING and STOP lights in the cab panel | Service part / kit | Amazon eBay | |
| 19200075 | Maintenance monitor data (Cumulative Data, Trip Data, Idle Data, PTO Data) | Service part / kit | Amazon eBay | |
| 19200084 | Fan Clutch 2 Enable | Service part / kit | Amazon eBay | |
| 1920086 | Fuel Shutoff Valve | Service part / kit | Amazon eBay | |
| 1920089 | Cooling Plate | Service part / kit | Amazon eBay | |
| 1920091 | Engine Wiring Harness (actuator amp connector) | Service part / kit | Amazon eBay | |
| 1920092 | OEM Wiring Harness | Service part / kit | Amazon eBay | |
| 1920093 | Engine Mounted Service Tool Datalink | Service part / kit | Amazon eBay | |
| 1920094 | Fuel In | Service part / kit | Amazon eBay | |
| 1920095 | Fuel Out | Service part / kit | Amazon eBay | |
| 19400220 | Engine Brake Solenoid Valve | Service part / kit | Amazon eBay | |
| 19601595 | ADVANTAGE™ | Service part / kit | Amazon eBay | |
| 19801598 | ADVANTAGE™ POINT | Service part / kit | Amazon eBay | |
| 19801602 | Transient Black Smoke Control | Service part / kit | Amazon eBay | |
| 19801603 | CENTRY™ Plus | Service part / kit | Amazon eBay | |
| 19801610 | N14 Section 1 - Operating Instructions | Service part / kit | Amazon eBay | |
| 3046951 | PAN,OIL | 1 | Service part / kit | buy |
| 3056155 | STUD,DOUBLE END PLAIN | 4 | Service part / kit | buy |
| 3064309 | PIN,ROLL | 1 | Service part / kit | buy |
| 3065022 | MANIFOLD,EXHAUST | 1 | Service part / kit | buy |
| 3078322 | MANIFOLD,EXHAUST | 1 | Service part / kit | buy |
| 3078323 | MANIFOLD,EXHAUST | 1 | Service part / kit | buy |
| 3078324 | MANIFOLD,EXHAUST | 1 | Service part / kit | buy |
| 3161423 | ROLLER,CAM FOLLOWER | 1 | Service part / kit | FridayParts $32.56 |
| 3162850 | DB9F-DB9M datalink cable | 1 | Service part / kit | buy |
| 3163096 | J1939 backbone adapter | 1 | Service part / kit | buy |
| 3163597 | J1939 gender changer adapter | 1 | Service part / kit | buy |
| 3165017 | Palm universal cable | 1 | Service part / kit | buy |
| 3165033 | INLINE™5 datalink adapter | 1 | Service part / kit | buy |
| 3165141 | DB25F 2-Pin Weather-Pack and 3-Pin Deutsch with Cigarette Plug connector | 1 | Service part / kit | buy |
| 3165143 | Storage Case | 1 | Service part / kit | buy |
| 3165159 | Datalink cable (DB25F 9-Pin Deutsch connector) | 1 | Service part / kit | buy |
| 3165160 | Datalink cable (DB25F 6-Pin Deutsch connector) | 1 | Service part / kit | buy |
| 3166388 | PIN,CAM FOLLOWER ROLLER | 1 | Service part / kit | buy |
| 3376592 | Inch Pound Torque Wrench | 1 | Service part / kit | Amazon eBay $174.95 KuduParts $359.00 FridayParts $368.60 |
| 3413091 | COOLER,OIL | 1 | Service part / kit | FridayParts $215.37 |
| 3682959 | MANIFOLD, EXHAUST | 1 | Service part / kit | buy |
| 3684295 | MANIFOLD, EXHAUST | 1 | Service part / kit | buy |
| 3688114 | PLUG, GEAR COVER | 1 | Service part / kit | buy |
| 3689250 | MANIFOLD, EXHAUST | 1 | Service part / kit | buy |
| 3823097 | High-temperature Anti-Seize Compound | 1 | Service part / kit | Amazon eBay |
| 3823461 | Chip Removal Tool | Service part / kit | Amazon eBay | |
| 3824440 | DB25F 8-Pin AMP connector | 1 | Service part / kit | buy |
| 4059393 | HOUSING, GEAR | 1 | Service part / kit | buy |
| 4318216 | COMPRESSOR, AIR | 1 | Service part / kit | buy |
| 49100029 | Fan Clutch 2 Enable | Service part / kit | Amazon eBay | |
| 4918417 | INLINE™5 software compact disc | 1 | Service part / kit | buy |
| 4918418 | DB9F-DB9M serial cable | 1 | Service part / kit | buy |
| 4918436 | INLINE™4 and 5 Ruggedized protective boot | 1 | Service part / kit | buy |
| 4919115 | CM2250 wiring test lead and harness repair kit | 1 | Service part / kit | buy |
| 49200053 | PTO Set | Service part / kit | Amazon eBay | |
| 4952236 | MANIFOLD, EXHAUST | 1 | Service part / kit | buy |
| 49601601 | Torque Signal | Service part / kit | Amazon eBay | |
| 4963807RX | CM876 | 1 | Service part / kit | buy |
| 4973081 | COVER, GEAR | 1 | Service part / kit | buy |
| 49801597 | Power Output | Service part / kit | Amazon eBay | |
| 49801599 | Low Speed High Speed | Service part / kit | Amazon eBay | |
| 49801603 | AFC CONTROLLED FUEL | Service part / kit | Amazon eBay | |
| 5278786 | COVER,GEAR | 1 | Service part / kit | buy |
| 5558845 | PAN,OIL | 1 | Service part / kit | buy |
| C2800 | Fleetguard® refractometer | 1 | Service part / kit | Amazon eBay NAPA $393.59 |
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 — cummins-N14-marine-specs (Cummins/Onan)Engine spec — fr10171 (Cummins/Onan)Engine spec — fr10173 (Cummins/Onan)Reference — 0032425 (Cummins/Onan)Reference — 0063427Reference — 91 N14Reference — 94N14MagAd06Reference — EveryHorseRestoredReference — Schedule Technical2012 (Cummins/Onan)Owner's manual — 0032347Owner's manual — 0032372 (Cummins/Onan)Owner's manual — 3381139Parts manual — Heavy-Duty Legacy Repair KitsService manual — Cummins Diesel N14 Manual 1999 (2) (Cummins/Onan)Service manual — ServiceInstructions5 (Cummins/Onan)
This page was generated from the 15 manufacturer documents above by automated extraction; every figure shown is copied from one of them. How the data is compiled.