Tracking down parts for a 4JJ1TASB01 diesel shouldn't mean guessing from blurry diagrams or waiting on hold at the dealer. This 84-page catalog (OEM #P-TB290_HEOA) puts 36 pages of exploded views at your disposal, covering every major assembly: cylinder head, crankshaft, turbocharger, fuel injection, and more. Each diagram pairs reference numbers with complete part listings, interchangeability marks, and change indicators so you can cross-reference superseded parts on the spot. Head gaskets are broken out by grade (Grade 1 at 1.05mm thickness). The ring gear calls out 122 teeth, letting you confirm the correct flywheel assembly before you order. The 12V/2.5KW starter and 12V/110A generator assemblies are fully detailed with individual component part numbers. Bookmarked for fast navigation; pull it up on your phone at the parts desk and order with confidence.
What's Inside This Isuzu 4JJ1TASB01 Parts Manual
| System | Pages | Key Topics |
|---|---|---|
| How to read this Parts Catalog (Detailed English Explanation) | 3-3 | ① Ref. No., ③ Change Mark, ④ Interchangeability Mark, ⑤ Effective Machine No. |
| 親・子の表示 / Assemblies, Kits, Sets and Their Components | 4-4 | - |
| 略語表/Abbreviation List | 5-6 | - |
| IDプレートの見方/How to refer to ID Plate | 7-9 | ①完成年月 / Applied Date, ② エンジン型式名称 / Engine Model Name |
| Engine Gasket Kit | 10-13 | - |
| Cylinder Head Cover | 14-15 | - |
| Cylinder Head | 16-19 | - |
| Cylinder Block | 20-23 | - |
| Oil Pan | 24-25 | - |
| Camshaft and Valve | 26-29 | - |
| Crankshaft, Piston and Flywheel | 30-31 | - |
| Timing Gear Case and Flywheel Housing | 32-33 | - |
| Engine Mounting | 34-35 | - |
| Inlet Manifold | 36-37 | - |
| Exhaust Manifold | 38-39 | - |
| Ventilation System | 40-41 | - |
| Water Pump and Corrosion Resistor | 42-43 | - |
| Thermostat and Housing | 44-45 | - |
| Water Piping; Engine | 46-47 | - |
| Fan and Fan Belt | 48-49 | - |
| Turbocharger System | 50-51 | - |
| Fuel Injection System | 52-55 | - |
| Fuel Filter and Bracket | 56-57 | - |
| Oil Cooler and Oil Filter | 58-59 | - |
| Oil Pump and Oil Strainer | 60-61 | - |
| Oil and Vacuum Piping; Engine | 62-63 | - |
| Emission Piping | 64-65 | - |
| Engine Electrical Control Parts | 66-69 | - |
| Starter | 70-71 | - |
| Generator | 72-73 | - |
| Wiring Harness and Fuse | 74-75 | - |
| Fixing Parts; Wiring Harness | 76-77 | - |
| Switch and Relay; Instrument Panel | 78-79 | - |
| Exhaust Pipe and Silencer | 80-81 | - |
Isuzu 4JJ1TASB01 Specifications
| Specification | Value | Page |
|---|---|---|
| Engine Overhaul Head Gasket Thickness (Grade 1) | 1.05mm | p. 11 |
| Oil Filler Gasket Dimensions | ID=32mm OD=40mm | p. 15 |
| Glow Plug Voltage | 12V | p. 17 |
| Crankshaft Metal Set Grade | GRADE=1 | p. 31 |
| Ring Gear Teeth Count | 122 teeth | p. 31 |
| Thermostat Opening Temperature | 82°C | p. 45 |
| Cooling Fan Diameter | OD=550mm | p. 49 |
| Fuel Feed Pump Voltage | 12V | p. 55 |
| Starter Assembly Voltage/Power | 12V 2.5KW | p. 67 |
| Generator Assembly Voltage/Current | 12V 110A | p. 67 |
Isuzu 4JJ1TASB01 Common Problems This Manual Covers
Isuzu 4JJ1TASB01 turbocharger failed, need correct replacement part numbers for turbo assembly and gaskets p. 50
Open the Turbocharger System exploded view on page 50 to identify every component in the turbo assembly. Cross-reference each ref. number against the parts list on page 51 for current part numbers. Review the Engine Gasket Kit section on page 10 for related exhaust gaskets. Verify your serial number against the Effective Machine No. column to confirm part compatibility before ordering.
Manual Section: Turbocharger SystemCan't identify the correct fuel injector part numbers or injector seal kit components p. 52
Locate the Fuel Injection System exploded view starting on page 52. Each injector and seal is listed by ref. number with individual part numbers. The fuel feed pump is rated at 12V per the parts list on page 55. Consult the interchangeability marks explained on page 3 to confirm which injectors match your serial number range, since part numbers may vary across production runs.
Manual Section: Fuel Injection SystemNeed to order timing gear case components but unsure which parts are included in each assembly p. 32
Refer to the Timing Gear Case and Flywheel Housing exploded view on page 32. Note the parent/child assembly notation explained on page 4; some items are kits that include sub-components. The crankshaft and flywheel section on page 30 shows the ring gear (122 teeth) and related components. Verify change marks on each listing to confirm you are ordering the latest revision.
Manual Section: Timing Gear Case and Flywheel HousingOrdering cylinder head gasket but multiple thickness grades listed, unsure which to select p. 11
Turn to the Engine Gasket Kit parts list on page 11 where head gaskets are listed by grade. Grade 1 measures 1.05mm thickness. Interchangeability marks (explained on page 3) indicate which grades replace others. Review the cylinder head section starting on page 16 for related valve cover gaskets and glow plugs (12V) to bundle your order and reduce downtime.
Manual Section: Engine Gasket KitEGR valve and emission piping part numbers hard to locate in the catalog index p. 64
Start with the Emission Piping exploded view on page 64 for EGR-related components and their ref. numbers. Cross-reference the abbreviation list on page 5 to decode any shorthand in the parts descriptions. The inlet manifold section on page 36 and exhaust manifold section on page 38 show connecting components. Use the index to quickly locate additional related assemblies.
Manual Section: Emission PipingFuel filter bracket assembly needs replacement, can't match bracket and filter part numbers p. 56
Pull up the Fuel Filter and Bracket exploded view on page 56 for the complete bracket assembly and individual filter element part numbers. Note the parent/child markings (explained on page 4) that show which small parts ship inside a kit versus separately. The thermostat housing on page 44 (opens at 82°C) and water pump on page 42 sit nearby, so inspect those sections if you need adjacent components.
Manual Section: Fuel Filter and BracketIsuzu 4JJ1TASB01 parts FAQ
How quickly can I access this Isuzu 4JJ1TASB01 manual after buying?
It's an 84-page searchable PDF, available for immediate download. Works on any device, so you can reference it on your phone right at the bench. No shipping, no waiting.
Am I able to print pages from this Isuzu 4JJ1TASB01 manual?
Yes. The PDF has no DRM restrictions. Print any page or section you need for your shop. Works with any standard printer.
Document Quality
This is a scanned document with an OCR layer, so you can search and copy the full text. The text is crisp and easy to read throughout. Diagrams and illustrations are scanned images, which means they will pixelate if you zoom in significantly, but their labels are generally readable. Pages are clean with no noticeable marks or skewed content. There are no PDF bookmarks for quick navigation, and page 9 is a blank 'Memo' page.
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