Factory coverage for your CNH Industrial NEF Tier 4A (interim) and Stage IIIb engine starts here: all 423 pages of this service manual (OEM #48076861) cover the complete F4DFE and F4HFE engine families from crankshaft and flywheel teardown to Selective Catalytic Reduction exhaust treatment. You get wiring diagrams for the engine control module, starting system, alternator, and cold start aid, plus full SCR electrical circuits. Packed with system diagrams, exploded views, torque tables, error codes, and step-by-step rebuild procedures for every assembly: valve drive, cylinder heads, connecting rods, pistons, turbocharger lines, and fuel injection. The thermostat operates between 79 and 83°C; torque your turbocharger mounting nuts to 20.0-28.0 N·m on 4-cylinder models or 37.0-49.0 N·m on 6-cylinder variants. No more hunting forum threads for emission-tier specs on a family this complex. Bookmarked and keyword-searchable; pull it up on your tablet at the machine and start wrenching.
What's Inside This CNH NEF (F4DFE413 series) Manual
| System | Pages | Key Topics |
|---|---|---|
| Introduction | 7-24 | Foreword, Safety Rules, Torque, Basic Instructions - Important Notice Regarding Equipment Servicing, Torque - Minimum Tightening Torques for Normal Assembly |
| Engine Block and Valvetrain | 25-125 | Engine and Crankcase, Pan and Covers, Valve Drive and Gears, Cylinder Heads |
| Engine Assembly and Fuel System | 126-259 | Connecting Rods and Pistons, Crankshaft and Flywheel, Balancer and Damper, Pump Drives, Lift Pump and Lines, Fuel Filters, Fuel Injection System |
| Intake, Cooling and Lubrication | 260-340 | Turbocharger and Lines, Intake and Exhaust Manifolds, SCR Exhaust Treatment, Engine Cooling System, Fan and Drive, Engine Lubrication System, Oil Cooler and Lines |
| Electrical Systems - 55 | 341-419 | Engine Control System, Engine Starting System, Alternator, Cold Start Aid, Fuel Injection System, Engine Intake and Exhaust System, Selective Catalytic Reduction Electrical System |
Quick Reference Specifications
| Specification | Value | Page |
|---|---|---|
| 4-cylinder models | ||
| Turbocharger mounting nuts torque | 20.0 - 28.0 N·m (14.8 - 20.7 lb ft) | p. 263 |
| 6-cylinder models | ||
| Turbocharger mounting nuts torque | 37.0 - 49.0 N·m (27.3 - 36.1 lb ft) | p. 263 |
| All Models | ||
| Air cleaner replacement | Inspect and replace air cleaner if necessary | p. 45 |
| Thermostat operating temperature | 79 - 83 °C (174 - 181 °F) | p. 32 |
| Thermostat housing mounting bolts torque | 37.0 - 49.0 N·m (27.3 - 36.1 lb ft) | p. 296 |
| Excessive Exhaust Smoke - Air cleaner dirty or restricted | Replace air cleaner | p. 46 |
| Excessive Exhaust Smoke - Excessive fuel delivery | Adjust fuel delivery | p. 46 |
| Cylinder head bolt torque (M12x1.75x130 mm, First phase) | 30 - 40 Nm (22.1 - 29.5 lb ft) | p. 11 |
| Cylinder head bolt torque (M12x1.75x150 mm, First phase) | 50 - 60 Nm (36.9 - 44.3 lb ft) | p. 11 |
| Oil pressure relief valve torque | 72 - 88 Nm (53.1 - 64.9 lb ft) | p. 12 |
| Oil pan bolt torque | 20 - 28 Nm (14.8 - 20.7 lb ft) | p. 12 |
| Engine type | Four-Stroke diesel engine | p. 32 |
CNH NEF (F4DFE413 series) Common Problems This Manual Covers
CNH Industrial NEF Tier 4A engine intermittently shuts down mid-operation, active NOx sensor or SCR controller fault codes
Connect the Electronic Service Tool and pull active fault codes; SPN 1763 and SPN 3364 are the usual culprits. Verify DEF/AdBlue quality and tank level first. Check that the cooling thermostat opens at 79-83°C (174-181°F) per page 32, since low exhaust temperature stalls the SCR system. Run the healing process before replacing any sensor.
Manual Section: Selective Catalytic Reduction (SCR) Healing ProcessEngine loses power after 2-3 hours of continuous heavy load, CEGR valve stuck fault logged p. 45
Check valve clearances cold: intake must be 0.20-0.30 mm and exhaust 0.45-0.55 mm per the specs on page 32. Inspect the CEGR valve for carbon buildup and verify it moves freely through its full stroke. Cross-reference the engine troubleshooting chart on page 45 for all low-power causes before pulling the valve for bench testing.
Manual Section: Engine TroubleshootingTurbocharger bearing noise develops after extended operating hours, boost pressure drops under load p. 263
Inspect the turbocharger for shaft radial play and check for oil in the compressor housing, which signals bearing seal failure. Verify the air cleaner is clean before condemning the turbo. When reinstalling, torque mounting nuts to 20.0-28.0 N·m (14.8-20.7 lb ft) on 4-cylinder models or 37.0-49.0 N·m (27.3-36.1 lb ft) on 6-cylinder models, as shown on page 263.
Manual Section: Engine - 10Excessive black smoke from exhaust combined with overheating temperature warning on gauge p. 46
Start with the quick checks on page 46: verify coolant is filled to the proper level, inspect radiator fins for debris and straighten any bent fins, and test the radiator cap seal. Replace the air cleaner if restricted. If overheating persists, inspect the thermostat; it should open between 79-83°C (174-181°F) per page 32.
Manual Section: Engine TroubleshootingOil consumption increases abnormally between service intervals, blow-by filter requires frequent replacement
Inspect the blow-by filter and crankcase breather for oil saturation per the service procedures. Measure tappet clearances cold: intake must be 0.20-0.30 mm and exhaust 0.45-0.55 mm. Out-of-spec clearances and worn valve stem seals are the first place to look before suspecting rings or liner wear.
Manual Section: Engine Service and Maintenance ProceduresEngine won't start or cranks very slowly during cold weather, no-fire condition p. 341
Verify battery charge and terminal connections before anything else; cold cranking amps drop sharply below freezing. Confirm the cold start aid system is active per the electrical system section beginning on page 341. Drain any water from the fuel filter per the service procedures; water in diesel gels overnight and blocks fuel flow completely.
Manual Section: Electrical Systems - 55Frequently Asked Questions
What are the recommended service intervals?
The manual specifies that the density of the cooling liquid must be checked every year before winter and replaced every two years. For the main DEF filter, refer to the machine operators manual for service intervals. The engine oil filter has an internal volume of about 1 l (0.3 US gal) and should be replaced when the lubrication oil is replaced.
What fluids and capacities does this machine require?
The engine requires specific capacities for oil, with the oil pan capacity being 15 l (15.85 US qt) and the oil filter capacity being 1 l (1.06 US qt). The manual also refers to Diesel Exhaust Fluid (DEF)/AdBlue® for the SCR system and fuel for the injection system.
How to troubleshoot engine won't start?
If the engine does not start, possible causes include a faulty starter switch, insufficient battery charge, lack of fuel, air in the fuel system, a clogged fuel filter, irregular fuel supply, a glow plug not heating, improper lubricating oil viscosity, a clogged air cleaner, a faulty engine stop solenoid, or a burned out fuse. Corrections involve replacing or checking these components, such as replacing the starter switch or checking the battery and charging system.
What torque specifications are listed?
Various torque specifications are listed, including for cylinder heads (e.g., M12x1.75x130 mm: First phase 30 - 40 Nm (22.1 - 29.5 lb ft)), oil pump (M8: First phase 7 - 9 Nm (5.2 - 6.6 lb ft)), and injectors (M6 Screw: First phase 8.15 - 8.85 Nm (6.0 - 6.5 lb ft)). Minimum tightening torques for normal assembly are also provided, such as M12 Class 8.8 unplated bolts at 64 N·m (47 lb ft).
How quickly can I access this Cnh Industrial NEF Tier 4A (interim) and Stage?
A 423-page Service Manual in searchable PDF format, available the moment you complete checkout. View on computer, tablet, or phone, with no shipping wait.
Can I print specific sections of this Cnh Industrial NEF Tier 4A (interim) and?
The PDF is DRM-free. Print whatever sections you need to take out to the shop. Standard letter or A4 paper works.
Are electrical wiring diagrams included in this Cnh Industrial NEF Tier 4A?
Yes, full electrical schematics are included with wire colors, connector locations, and circuit descriptions.
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