This Yanmar 3TNE74 Parts Catalog (OEM #Y00R5260) maps every component across five engine variants: the 3TNE74-SA, 3TNE74-G1A, 3TNE74-G2A01, 3TNE74C(E)SA, and 3TNE74C(E)G1. Across 30 pages, exploded views and OEM part numbers run from the cylinder block and crankshaft to the fuel injection pump, governor, and starting motor. Coverage reaches the panel, tool set, and gasket kit, so one publication carries it all. Every assembly breaks down to individual components with factory numbers, including the fuel injection valve, fuel filter, engine control device, and the cold-district starting motor. No more ordering by guesswork: find the number, confirm it against the diagram, and get the right part on the first call. Bookmarked by assembly, it opens on any device and jumps straight to the system you need.
What's Inside This Yanmar 3TNE74-SA / G1A / G2A Series Parts Manual
| System | Pages |
|---|---|
| Cylinder Block | 0-0 |
| Gear Housing | 0-0 |
| Flywheel Housing & Oil Sump | 0-0 |
| Cylinder Head & Bonnet | 0-0 |
| Suction Manifold & Air Cleaner | 0-0 |
| Exhaust Manifold & Silencer | 0-0 |
| Camshaft & Driving Gear | 0-0 |
| Crankshaft & Piston | 0-0 |
| Lub.Oil System | 0-0 |
| Cooling Water System | 0-0 |
| Radiator | 0-0 |
| Fuel Injection Pump | 0-0 |
| Governor | 0-0 |
| Fuel Injection Valve | 0-0 |
| Fuel Filter | 0-0 |
| Engine Control Device | 0-0 |
| Starting Motor | 0-0 |
| Starting Motor (Cold District) | 0-0 |
| Generator | 0-0 |
| Panel | 0-0 |
| Tool & Gasket Set | 0-30 |
Yanmar 3TNE74-SA / G1A / G2A Series Common Problems This Manual Covers
Yanmar 3TNE74 fuel injector part number needed, unsure which assembly applies to your specific model suffix p. 1
Pull the engine parts diagram on page 1 and locate the fuel injection sub-assembly group. Injector part number 719620-53700 is listed within the fuel system assembly. Cross-reference your exact model suffix (SA, G1A, G2A, or a C-series such as 3TNE74C-SA01) against the parts index before ordering, since the 3TNE74C prechamber variants can reference a separate configuration. Confirm the quantity: this is a 3-cylinder engine, so a full set covers all 3 injector positions.
Manual Section: Engine Parts DiagramInjection pump sub-component part numbers unclear, assembly appears as a single unit in the diagram
Locate the fuel system assembly group, then look past the top-level pump assembly entry. Individual pump sub-components are broken out as separate line items deeper in the parts list. Suffix matters here: SA, G1A, and 3TNE74C C-series variants can reference different internal configurations. Match your full model designation exactly before pulling part numbers, or you risk ordering a sub-assembly that does not interchange.
Manual Section: Engine Parts DiagramCylinder head gasket set part number ambiguous, C-series and base models look nearly identical in the diagram p. 1
Open the engine parts diagram on page 1 and find the cylinder head assembly group. The head gasket set part number differs between the base 3TNE74 and the 3TNE74C(E) C-series variants, which use a prechamber design that changes the combustion chamber geometry. Confirm your exact model designation first. The gasket must cover all 3 cylinder bores, and a part from the wrong sub-variant will not seal correctly at the head face.
Manual Section: Engine Parts DiagramGlow plug part numbers for cold-start system, unclear whether C-series and base engine share the same part p. 1
Reference the engine parts diagram on page 1 to find the glow plug positions within the cylinder head assembly group. The 3TNE74C(E) prechamber variants use a different glow plug specification than the base 3TNE74 models. Pull your full model designation, then check the starting aid sub-assembly in the parts list. A complete replacement takes 3 glow plugs, so verify whether the entry specifies individual units or a set before ordering.
Manual Section: Engine Parts DiagramFuel filter cartridge part number not obvious, catalog spans 18 model variants with overlapping nomenclature
Trace the fuel feed system assembly group to the filter cartridge, which appears as a standalone line item within the fuel supply sub-assembly. Base 3TNE74 and 3TNE74C variants may share the same filter part number, but confirm it against your specific model suffix and serial number range in the parts index. Ordering against the wrong model group is a common mistake when one catalog covers this many variants.
Manual Section: Engine Parts DiagramEngine seal and gasket kit part numbers scattered across multiple assemblies, no consolidated overhaul set visible p. 1
Work through the engine parts diagram on page 1 and check each major assembly group on its own: cylinder head, front cover, oil pan, and crankshaft seal sub-assemblies each carry their own seal and gasket line items. There is no single consolidated overhaul kit; you build the set part by part from each group. The 3TNE74C(E) C-series variants add prechamber seals absent from the base model groups, so verify your model suffix at each sub-assembly before adding to your order.
Manual Section: Engine Parts DiagramFrequently Asked Questions
What are the replacement specifications for fuel injectors (719620-53700)?
Listed as "VALVE ASSY, F.INJECT," the fuel injector carries part number 719620-53700, with a quantity of 3 across all listed engine models (A) through (F). This is a parts catalog, so it does not give torque values or other replacement specifications.
What are the replacement specifications for injection pump components?
For the fuel injection pump, the catalog breaks out parts like the PLUNGER W/BARREL (119620-51101), RETAINER (119620-51170), and SHIM PACK (119620-51250). Part numbers and quantities are given, but torque values and operating clearances are not detailed here.
How do you fix yanmar 3TNE74 fuel injector part number needed, unsure which assembly applies to your specific model suffix?
Start with the engine parts diagram on page 1 and find the fuel injection sub-assembly group, where injector 719620-53700 is listed. Match your model suffix (SA, G1A, G2A, or C-series) against the parts index first, since the 3TNE74C prechamber engines can call out a different configuration. A full set is 3 injectors for this 3-cylinder engine.
How do you fix injection pump sub-component part numbers unclear, assembly appears as a single unit in the diagram?
Look past the top-level pump entry in the fuel system assembly group; the individual pump sub-components sit deeper in the parts list as separate line items. Suffix matters: SA, G1A, and 3TNE74C C-series engines can use different internal configurations, so match your full model designation before pulling numbers, or you may order a sub-assembly that won't interchange.
How quickly can I access this manual after buying?
Download is immediate after purchase: the full 30-page searchable Parts Catalog, ready on any device, from the laptop at your desk to a phone out in the field.
Can I print specific sections of this Yanmar 3TNE74-SA & variants Parts Catalog?
Yes. Print as many copies as you like, with no restrictions. Plenty of mechanics print just the section they need and carry it onto the shop floor.
Document Quality
This document is a scanned PDF with an OCR layer, allowing you to search and copy the full text content. The text is crisp and clear throughout, ensuring easy readability of part numbers and descriptions. Diagrams are raster images, which appear clear at normal zoom but show pixelation when magnified, though all labels remain readable. Pages are clean with no noticeable scan artifacts, stains, or skewed content. There are no blank or filler pages; content is presented efficiently.
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