Cummins N14 Engine Parts | CELECT & Overhaul Parts
N14 / CELECT / CELECT PLUS PARTS ROUTE
Match Cummins N14 engine parts to the 14L build, fuel-control system, CPL, application and exact service number.
4BTdiesel supplies aftermarket replacement parts for Cummins N14 repairs, including CELECT injectors, fuel-system components, cylinder heads, cylinder blocks, crankshafts, camshaft parts, connecting rods, turbochargers, starters, thermostats and selected overhaul components. N14, NH855 and NT855 names can appear together in product catalogs, but they must not be treated as one universal parts list.
Identify the N14 Fuel and Control Route
An N14 description is incomplete without its control system. Mechanical PT, STC-related builds, CELECT and CELECT Plus use different identification and service routes. Use the table as a screening tool, then verify the ESN and current part number.
| N14 route | What to photograph or record | Parts most affected |
|---|---|---|
| Mechanical / PT | Fuel-pump tag, injector number, CPL, governor and application | Fuel pump, injectors, linkages, governor and calibration parts |
| STC-related configuration | CPL, injector and timing-control component numbers | Injectors, timing-control parts, fuel-system seals and top-end service parts |
| CELECT | ECM label, injector number, ESN and harness connectors | ECM, injectors, sensors, harnesses and electronic troubleshooting parts |
| CELECT Plus / N14 Plus | ECM and calibration identifiers, CPL, rating and original component number | Electronic controls, injectors, sensors, turbo and application-specific accessories |
Do not identify an N14 fuel part from the connector or body shape alone. A CELECT-family name does not confirm the calibration, injector flow, ECM program or harness pin assignment.
N14 Specifications That Affect Parts Selection
14-Liter Platform
The inline six-cylinder N14 has approximately 855 cubic inches of displacement. Do not confuse it with the 10.8L M11 because both served heavy-duty applications.
Three Cylinder Heads
The N14 service architecture uses three cylinder heads, with each head serving two cylinders. Match bare versus complete head and verify valves and injector configuration.
Replaceable Liners
Liner, piston, ring and bearing selection depends on CPL, piston design and repair measurements. An “N14 overhaul kit” description is not enough.
Multiple Applications
Highway, construction, pump, compressor and generator-drive applications can use different ratings, sumps, cooling, turbo and accessory arrangements.
N14 vs NH855 and NT855 Parts
N14, NH855 and NT855 are connected by the wider 14L/855-cubic-inch N-platform history, so some product listings legitimately include more than one model. That shared route does not make the engines identical. Mechanical PT, STC and electronic N14 configurations differ in fuel control, top-end components and service procedures. Use a cross-listed part only when the exact number and engine build agree.
| Evidence | What it can establish | Is it enough to order? |
|---|---|---|
| “N14” in a product title | Broad engine-family relevance | No |
| N14 plus component type | Narrows the category | No |
| CPL and control system | Narrows the build and fuel route | Useful, but verify the number |
| ESN build record and old part number | Connects the individual engine to a service part | Strong basis after supersession check |
| Physical configuration and application | Confirms voltage, mounting, ports and orientation | Required for many accessories |
Shop N14 Parts by Repair Scope
Fuel-System Diagnosis and Repair
Identify PT, STC, CELECT or CELECT Plus before selecting a fuel pump, injection pump, injector, cup or related control component.
Top-End Repair
Confirm the head number, valve configuration, injector type and repair scope. Browse cylinder heads, cam followers, valve-train and gasket parts.
In-Frame and Major Overhaul
Provide ESN, CPL, piston and liner information plus crankshaft measurements. Browse overhaul kits, crankshafts and connecting rods.
Air, Cooling and Starting
Compare turbo model and housing, starter voltage and flange, thermostat temperature and equipment cooling arrangement. Browse turbochargers, starters and thermostats.
Featured Cummins N14, NH855 and NT855 Parts
The products below represent different N-platform repair routes. Confirm the exact engine, control system and part number before ordering, especially when a listing covers N14 together with NH855 or NT855.
What to Send Before an N14 Parts Quote
- Clear dataplate photograph and typed Engine Serial Number
- Complete model, CPL, advertised rating and governed speed
- Mechanical PT, STC, CELECT or CELECT Plus identification
- ECM, fuel-pump or injector label when the repair involves fuel control
- Truck or machine make, model and serial number
- Original part number, casting number and multiple photographs
- Voltage, gear, flange, connectors, ports and orientation for accessories
- Repair scope and any measurements already taken by the engine shop
Cummins N14 Engine Parts FAQ
Are the Cummins N14 and NT855 the same engine?
No. They share the broad 14L N-platform history and some cross-listed service parts, but fuel control, top-end components and build details differ. Verify the exact model, ESN, CPL and part number.
How many cylinder heads does an N14 use?
The N14 uses three cylinder heads, with each head serving two cylinders. The replacement still needs to match the head number, injector and valve configuration and whether a bare or complete assembly is required.
Will a CELECT Plus injector fit a CELECT N14?
Do not assume it will. CELECT and CELECT Plus identify control generations, not one universal injector. Use the injector number, ESN, CPL and current service information.
What information is required for N14 overhaul parts?
Provide the ESN, CPL, piston and liner information, bearing sizes and crankshaft measurements. An engine shop should confirm the repair dimensions before an overhaul kit or rotating component is ordered.
Availability, Shipping and Warranty
Many in-stock N14 parts can be dispatched within 1–3 business days once the part number, fitment and stock status are confirmed. Warranty is normally 3–6 months depending on the product. Exact warranty coverage, installation requirements, exclusions and return terms are confirmed with the quotation or order.
Related N14 Parts Resources
- L10, M11, QSM11, N14 and NT855 Parts Hub
- Cummins Engine Serial Number Lookup Guide
- Cummins Engine Assemblies and Spare Parts
- Search Parts by Number or Engine Model
Need the Correct Cummins N14 Engine Part?
Send the ESN, CPL, fuel-control type, application and removed-part information. We will compare the available aftermarket replacement listing before quoting.
