Need the right part number for your Yanmar 4TNV98-ZQTBZ TB180FR engine? Inside this 46-page parts catalog: factory exploded views and part numbers for every assembly in the TB180FR powerplant, from cylinder block and gear housing through the fuel injection system, ECU, and full gasket set. You get a complete numbered parts list paired with each figure so you can identify any component by position and order the exact replacement. The starting motor section breaks the 12V, 3KW unit into individual sub-assemblies: armature, brush set, pinion, and switch, each with its own line item. Stop chasing part numbers from blurry forum photos or outdated microfiche. Bookmarked by assembly section, so one click puts you at the right exploded view.
What's Inside This Yanmar 4TNV98-ZQTBZ, TB180FR Parts Manual
| System | Pages | Key Topics |
|---|---|---|
| Cylinder Block | 6-7 | Block Assy, Cylinder, Plug, Bolt, Bush, Main Bearing Set, Bearing, Thrust |
| Gear Housing | 8-9 | Housing, Gears, Pump Assy, LUB.OIL, O-Ring, Packing, Cover, Seal |
| Flywheel Housing & Oil Sump | 10-11 | Housing, Flywheel, Seal, Sump Assy, Oil, Drain Plug, Seal Washer |
| Cylinder Head & Bonnet | 12-13 | Head Assy, Cylinder, Valve, Valve Spring, Rocker Arm, Gasket |
| Suction Manifold & Air Cleaner | 14-15 | Manifold Cmp, Intake, Gasket, Heater, Air, Cleaner Assy, Main Element |
| Exhaust Manifold & Silencer | 16-17 | Manifold Assy, Exh, Gasket, EGR Pipe, EGR Valve, Silencer, Clamp |
| Camshaft & Driving Gear | 18-19 | Camshft Assy, Push Rod, Gear, Camshaft, Shaft, Idle, Bush |
| Crankshaft & Piston | 20-21 | Crankshaft Comp, Gear, Crankshaft, Piston Assy, Ring Set, Piston, Connecting Rod, Metal Assy |
| Lub.Oil System | 22-23 | Dipstick, Guide, Filter, Pipe Assy, Switch, Support |
| Cooling Water System | 24-25 | Pump Assy, V-Pulley, V-Belt, Fan, Thermostat, Pipe Assy, Sub-Tank Assy |
| Fuel Injection Pump | 26-27 | Injecton Pump Assy, Timer Set, Piston, Arm Assy, Rocker, Retainer |
| Governor | 28-29 | Packing, Sensor, Gear, Gasket, Plug, O-Ring |
| Fuel Injection Valve | 30-31 | Fuel Injector, Nozzle Assy, Holder Assy, Spring, Shim Pack, Pipe Assy, Injection |
| Fuel Line | 32-33 | Bracket, Fuel Filter, Pipe Assy, Fuel, Joint Bolt, Fuel Pump, Separator Assy |
| Starting Motor | 34-35 | Starter, Armature Assy, Coil Assy, Brush, Switch Assy, Pinion Assy |
| Generator | 36-37 | Rotator Assy, Frame Assy, Regulator Assy, Holder, Brush, Adjuster, Belt |
| Electronic Control Unit (ECU) | 38-39 | ECU Cmp, Shield, Collar, Rubber Cushion, Screw, ECU Assy |
| Gasket Set | 40-41 | Gasket, O-Ring, Packing, Seal Washer, Seal |
| Loose Part | 42-46 | Accel Sensor Assy, Nut, Spring, Sensor Comp., Body, Relay |
Quick Reference Specifications
| Specification | Value | Page |
|---|---|---|
| Starter Power Rating | 12V,3KW | p. 35 |
| Head Bolt Quantity | 18 | p. 7 |
| Main Bearing Under-Sized (U.S=0.25) Quantity | 5 | p. 7 |
| Parallel Pin 8x16 Quantity (Gear Housing) | 4 | p. 9 |
| Bolt M10x35 Plated Quantity (Flywheel Housing) | 9 | p. 11 |
| Valve Spring Quantity | 16 | p. 13 |
| Ring Gear Z=129 Quantity | 1 | p. 21 |
| Connecting Rod Bolt Quantity | 8 | p. 21 |
| Lub.Oil Switch Pressure | 0.5KG | p. 23 |
| V-Belt B43.0CH Quantity | 1 | p. 25 |
| Cooling Fan 460 Quantity | 1 | p. 25 |
| Fuel Injector Quantity | 4 | p. 31 |
Yanmar 4TNV98-ZQTBZ, TB180FR Common Problems This Manual Covers
Yanmar 4TNV98 fuel filter part number needed, old filter label worn off and supplier shows multiple options p. 32
Check the Fuel Line exploded view on page 32. The fuel filter and fuel separator assembly are both listed there as discrete line items with individual part numbers. Cross-reference the parts list on page 33 to confirm the correct filter fits your serial number range before placing the order with your supplier.
Manual Section: Fuel LineCan't identify which gasket set covers a full top-end rebuild, multiple kits listed in supplier catalog p. 40
Open the Gasket Set section on page 40. The exploded view separates individual gaskets, O-rings, packings, seal washers, and seals as discrete line items with part numbers. Check the Cylinder Head section on page 12 alongside it: the head assembly carries 16 valve springs, so confirm your gasket kit includes the corresponding head gasket before ordering.
Manual Section: Gasket SetStarter replacement stalled, need to confirm voltage and power rating before ordering a new unit p. 34
Turn to the Starting Motor exploded view on page 34. The starter on this engine is rated 12V, 3KW (confirmed on page 35). Match the full starter part number on page 35, then identify the armature assembly, brush set, and pinion assembly as separate line items if component-level replacement is needed rather than a complete unit.
Manual Section: Starting MotorOrdering replacement injectors but supplier keeps sending wrong quantity for a 4-cylinder engine p. 30
Check the Fuel Injection Valve section on page 30. This engine uses 4 injectors total, verified on page 31. The exploded view separates the nozzle assembly, holder assembly, spring, shim pack, and high-pressure pipe as individual part numbers. Order all 4 injector assemblies together to avoid mismatched wear across cylinders.
Manual Section: Fuel Injection ValvePreventive cooling service overdue, thermostat and drive belt part numbers not in old shop records p. 24
Open the Cooling Water System section on page 24. The thermostat, water pump assembly, V-pulley, and cooling fan are all listed with part numbers. Confirm you order one V-belt (B43.0CH) and one cooling fan 460, both on page 25. Cross-reference sub-tank assembly and pipe assembly part numbers if hoses also need replacement.
Manual Section: Cooling Water SystemECU replacement needed after sensor voltage fault, accelerator sensor and control unit part numbers unknown p. 38
Check the Electronic Control Unit section on page 38. The ECU assembly, shield, collar, and rubber cushion mounts each carry individual part numbers in the exploded view. For an accelerator sensor voltage fault, cross-reference the Loose Part section on page 42, where the Accel Sensor Assy and Sensor Comp. are listed with their part numbers.
Manual Section: Electronic Control Unit (ECU)Frequently Asked Questions
What are the replacement specifications for fuel filters?
For the fuel oil filter, the replacement part number is Y129907-55801. Additionally, the fuel separator assembly uses an element with part number Y119802-55710 for replacement.
What are the replacement specifications for oil filters?
The replacement specification for the oil filter is part number Y129150-35160, described as FILTER 80X80L. This part is listed with a quantity of 1.
How do you fix yanmar 4TNV98 fuel filter part number needed, old filter label worn off and supplier shows multiple options?
Check the Fuel Line exploded view on page 32. The fuel filter and fuel separator assembly are both listed there as discrete line items with individual part numbers. Cross-reference the parts list on page 33 to confirm the correct filter fits your serial number range before placing the order with your supplier.
How do you fix can't identify which gasket set covers a full top-end rebuild, multiple kits listed in supplier catalog?
Open the Gasket Set section on page 40. The exploded view separates individual gaskets, O-rings, packings, seal washers, and seals as discrete line items with part numbers. Check the Cylinder Head section on page 12 alongside it: the head assembly carries 16 valve springs, so confirm your gasket kit includes the corresponding head gasket before ordering.
What do I get after purchasing this Yanmar 4TNV98-ZQTBZ, TB180FR manual?
Instant PDF download. You get the full 46-page searchable Parts Catalog immediately after payment. Open it on your laptop, tablet, or phone right in the shop.
Can I print this manual?
No restrictions at all. Print individual pages, full chapters, or the entire manual. The PDF is completely unlocked.
Document Quality
This document is a scanned PDF with an OCR layer, allowing you to search and copy the full text. The text quality is generally crisp and easy to read, though some minor OCR imperfections are present. Diagrams and illustrations are raster images, which are clear and have readable labels, but they are not vector graphics. Pages are clean with minimal scan artifacts. There is one notable blank "Memo" page included.
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