Part of the Isuzu 4JJ1 engine documentation.
This Isuzu 4JJ1XYSB01 Parts Catalog, publication P-T1140EBC, is the factory parts-identification reference for the 4JJ1 series industrial diesel engine. Its 80 pages organize the engine into illustrated figures, grouped here into gasket and cylinder head, cylinder block and oil system, the rotating assembly, fuel, air and cooling, and the full electrical group.Every figure shows an exploded diagram tied to reference numbers, part numbers, and quantities, so you can pinpoint the exact component before you order. It reaches down to individual bolt, stud, and gasket sizes, including head-gasket thickness options.Use it to build accurate parts lists for a rebuild, match part numbers, and avoid ordering the wrong turbocharger, injector, or cooling part. It is a searchable, downloadable PDF you can zoom and print at full size whenever you are working on the engine.
What's Inside This Isuzu 4JJ1XYSB01 Parts Manual
| System | Pages | Key Topics |
|---|---|---|
| Engine Gasket & Cylinder Head | 8-17 | Gasket Kits, Cylinder Head Cover, Cylinder Head Assembly, Valves |
| Cylinder Block & Oil System | 18-23, 56-61 | Cylinder Block, Oil Pan, Level Gauge, Oil Cooler, Oil Filter, Oil Pump |
| Rotating & Reciprocating Assembly | 24-31 | Camshaft, Crankshaft, Piston, Flywheel, Timing Gear Case |
| Fuel System | 50-55 | Fuel Injection Pump, Injector Nozzles, Common Rail, Fuel Filter |
| Air, Exhaust & Cooling Systems | 34-49, 62-63 | Inlet Manifold, Exhaust Manifold, Turbocharger, Water Pump, Thermostat, Fan Belt |
| Electrical System | 64-77 | Starter, Generator, Control Unit, Sensors, Wiring Harness, Relays |
Quick Reference Specifications
| Specification | Value | Page |
|---|---|---|
| Head Gasket Thickness (1-Notch) | 1.05 mm | p. 15 |
| Head Gasket Thickness (2-Notch) | 1.10 mm | p. 15 |
| Head Gasket Thickness (3-Notch) | 1.15 mm | p. 15 |
| Thermostat Opening Temperature | 85°C | p. 43 |
| Cooling Fan Belt Length | 1006 mm | p. 47 |
| Cooling Fan Diameter | 550 mm | p. 47 |
| Starter Assembly Rating | 24V 4.0KW | p. 65 |
| Generator Assembly Rating | 24V 50A | p. 65 |
Isuzu 4JJ1XYSB01 Common Problems This Manual Covers
Turbocharger failure after high mileage
Loss of power, excessive smoke, and a whining noise usually trace to turbocharger wear from oil contamination or carbon buildup. The Air, Exhaust and Cooling Systems group identifies the turbocharger and related parts for replacement.
Manual Section: Air, Exhaust & Cooling Systems p. 34Injector faults and black smoke
Clogged nozzles, worn seals, or fuel contamination cause rough idling, poor economy, and hard starting. The Fuel System group lists the injectors, common rail, and fuel filter parts by number.
Manual Section: Fuel System p. 50SCV blockage and hard starts
A blocked, stuck, or dirty Suction Control Valve leaves the engine down on power with hard starts and rail pressure codes. Use the Fuel System group to identify the fuel supply parts involved.
Manual Section: Fuel System p. 50Water ingress corrodes sensors
After a water crossing or engine bay wash, corroded sensors can stop the engine from starting. The Electrical System group identifies the sensors, control unit, and wiring components to inspect and replace.
Manual Section: Electrical System p. 64Head gasket and cylinder head leaks
Overheating or a failed head gasket shows up as coolant loss and lost compression. The Engine Gasket and Cylinder Head group lists gasket kits by thickness plus the head assembly and valve parts.
Manual Section: Engine Gasket & Cylinder Head p. 8Starter or charging faults
A worn starter or generator leaves the engine slow to crank or the battery flat. The Electrical System group breaks out the starter, generator, and related parts for ordering the right unit.
Manual Section: Electrical System p. 64Frequently Asked Questions
Which engine does this catalog cover?
It is the Isuzu factory Parts Catalog for the 4JJ1XYSB01 industrial diesel engine, publication P-T1140EBC. It identifies parts across 80 pages of illustrated figures for this specific engine build.
Does it list the fuel system parts?
Yes. The Fuel System group covers the fuel injection pump, injector nozzles, common rail, and fuel filter, each with reference and part numbers so you can order the correct components. p. 50
Can I find head gasket thickness options?
Yes. The Engine Gasket and Cylinder Head group lists the overhaul gasket sets in the available head-gasket thicknesses, along with the head assembly and valve parts. p. 8
What format is this Isuzu 4JJ1XYSB01 manual in?
An 80-page PDF downloads instantly after checkout. Open it on your laptop, tablet, or phone and bring it straight to the shop floor.
Can I print specific sections of this Isuzu 4JJ1XYSB01 Parts Catalog?
No restrictions. Print individual pages, full chapters, or the entire manual. The PDF is completely unlocked.
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