All 40 pages of this Yanmar 3TNV82A-BPTB, BPTB1, and TB228 Parts Catalog (OEM #P-TB228EAB) exist for one purpose: correct part numbers for your TB228 engine, sourced straight from the factory. Exploded-view figures walk through every major assembly, from cylinder block and gear housing to crankshaft and piston, fuel injection pump, governor, nozzle assembly, and the complete gasket set. Parts lists cover engine internals, fuel system, and electrical components including starter motor and alternator, with factory callout numbers you can hand directly to a dealer. Need to ID that seal near the camshaft? The Camshaft and Driving Gear figure names every thrust metal, tappet, idle gear, and push rod by part number. Stop describing parts to a counter guy and hoping for the right one. Bookmarked for fast navigation; jump to any figure or search by keyword.
What's Inside This Yanmar 3TNV82A-BPTB (TB228) Parts Manual
| System | Pages | Key Topics |
|---|---|---|
| Cylinder Block | 4-5 | Cylinder Block Assy, Camshaft Bush, Thrust Bearing, Head Gasket, Main Repair Part Metal, Main Bearing Under-Sized Part, Thrust . Over-Sized Part Bearing |
| Gear Housing | 6-7 | Gear Case Assy, Oil Seal, Gear Case Flange, Filler Cover, Hydraulic Oil Pump Cover, Knock Pipe, Blind Cover |
| Flywheel Housing & Oil Sump | 8-9 | Flywheel Housing, Flywheel Cover Cap, Lub. Oil Sump Spacer, Oil Sump Assy, Oil Seal Case Assy, Oil Seal |
| Cylinder Head & Bonnet | 10-11 | Engine Lifter, Rocker Shaft Assy, Rocker Arm Shaft, Rocker Arm Support, Spring, Rocker Arm Assy, Valve Cap, Cylinder Head Assy |
| Suction Manifold & Air Cleaner | 12-13 | Breather Pipe, Int.manifold Gasket, Intake Manifold, Gasket, Bend, Air Cleaner, Element 5INCH, Mark |
| Exhaust Manifold & Silencer | 14-15 | Exhaust Manifold Gasket, Exhaust Manifold, Silencer Gasket, Silencer |
| Camshaft & Driving Gear | 16-17 | Tappet, Push Rod, Camshft Assy, Thrust Metal, Camshaft Gear, Idle Gear Shaft, Idle Gear Assy, Idle Gear Repair Part Bush |
| Crankshaft & Piston | 18-19 | Crankshaft Assy, Crankshaft Gear, Crankshaft V-Pulley, Flywheel Assy, Ring Gear, Piston Assy, Piston Ring Set, Connecting Rod Assy |
| Lub.Oil System | 20-21 | Lub. Oil Pump Assy, Lub. Oil Pump Gasket, Lub. Oil Dipstick, Dipstick Guide, Gasket, Oil Inlet Pipe Assy, Filter Bracket Assy, Filter 80X80L |
| Cooling Water System | 22-23 | Water Pump Assy, Gasket, Plate, Cooling Water Pump Pipe, Round Gasket, V-Belt, V-Pulley, Fan |
| Fuel Injection Pump | 24-25 | Injection Pump Assy Governor Assy Isincorporated in This, Cooling Water Joint, Joint, Stopper, Dilevery Valve Assy, Spring, Delivery Holder, Lifter |
| Governor | 26-27 | Case This Figure Isincorporated in the Fuelinjection Packing, Packing, Spring, Regulator Lever, Shaft Retainer, Case Cover, Stop Solenoid |
| Fuel Injection Valve | 28-29 | Fuel Injector, Nozzle Cmp, Nozzle Holder Assy, Nozzle Spring, Nozzle Spring Seat, Stop Plate, Retainer, Injection Pipe Retainer |
| Fuel Line | 30-31 | Fuel Pump, Fuel Filter Assy, Fuel Filter Bracket, Fuel Oil Filter, Separator Assy, Retaining Ring, Element, Cup Assy Par |
| Starting Motor | 32-33 | Starter, Magnetic Switch Assy, Armature Assy, Yoke Assy, Brush Holder Assy, Brush, Brush Spring, Rear Cover Assy |
| Generator | 34-35 | Alternator, Rotor Assy, Bearing Cover, Drive Flame Assy, Plate, Rear Flame Assy, Pulley, Collar |
| Gasket Set | 36-40 | Gasket Set Optional Part, Head Gasket, Valve Stem Seal, Nozzle Protector, Nozzle Seat, Bonnet Gasket, Int.manifold Gasket, Gasket |
Yanmar 3TNV82A-BPTB (TB228) Common Problems This Manual Covers
Yanmar 3TNV82A-BPTB fuel filter part numbers unclear, primary and secondary filters look identical but have separate catalog entries p. 30
Check the Fuel Line exploded view on page 30. The primary Filter Assy and secondary fuel filter appear as separate line items with distinct part numbers. Both units look nearly identical, so verify each part number against your serial number range in the parts list before ordering either filter to avoid receiving the wrong fitment.
Manual Section: Fuel LineFuel injection nozzle assembly part number needed, unsure whether holder and nozzle tip are ordered as one unit or separately p. 28
Open the Fuel Injection Valve exploded view on page 28. The complete Holder Assy, Nozzle Cmp, and nozzle spring are listed as separate orderable line items under the injector breakdown. Confirm whether you need the full holder assembly or just the nozzle tip; the return pipe assembly and injection pipe are also shown as individual part numbers on the same spread.
Manual Section: Fuel Injection ValveFuel-water separator part number needed, can't tell if bowl and filter element ship as a kit or individually p. 30
Refer to the Fuel Line section on page 30. The Fuel Oil Separator Assy is shown as a top-level assembly, with the bowl and element listed as sub-components beneath it. Inspect each line item's part number separately before ordering; the element may carry its own part number independent of the separator body depending on your serial range.
Manual Section: Fuel LineCrankshaft main bearing part numbers unclear, parts list shows multiple bearing entries with no obvious size callout p. 18
Check the Crankshaft & Piston exploded view on page 18. Bearings are listed by journal position along the crankshaft assembly. This parts catalog does not include dimensional specs, so measure the crankshaft journal on the machine first, then match the correct bearing part number by the size designation shown in the parts list to avoid ordering a mismatched set.
Manual Section: Crankshaft & PistonFull top-end gasket set part numbers unclear, can't determine which gaskets are included versus sold separately p. 36
Review the Gasket Set section starting on page 36, which runs through page 40. Head gaskets, manifold gaskets, O-rings, valve stem seals, and F.I. pump gaskets are all itemized individually rather than bundled. Cross-reference the Cylinder Head & Bonnet diagram on page 10 and the Fuel Injection Pump breakdown on page 24 to confirm every required part number before placing the order.
Manual Section: Gasket SetOil filter and bracket assembly part numbers needed, unclear if filter element and mounting hardware are bundled or separate line items p. 20
Open the Lub. Oil System exploded view on page 20. The oil filter, Bracket Assy, Oil Inlet, and Pipe Assy are each listed as separate line items with individual part numbers. The filter element and mounting bracket are not combined into a kit in this catalog, so identify and order each part number independently to get the complete assembly.
Manual Section: Lub.Oil SystemFrequently Asked Questions
What are the replacement specifications for Fuel filters (primary and secondary)?
The manual identifies the fuel filter assembly as part number Y129940-55610 (Ref. No. 2) and the fuel oil filter as Y129907-55801 (Ref. No. 4). The element for the fuel filter is Y119802-55710 (Ref. No. 7).
What are the replacement specifications for Oil filters?
The oil filter for the Lub.Oil System is identified by part number Y129150-35160 (Ref. No. 28).
How do you fix yanmar 3TNV82A-BPTB fuel filter part numbers unclear, primary and secondary filters look identical but have separate catalog entries?
Check the Fuel Line exploded view on page 30. The primary Filter Assy and secondary fuel filter appear as separate line items with distinct part numbers. Both units look nearly identical, so verify each part number against your serial number range in the parts list before ordering either filter to avoid receiving the wrong fitment.
How do you fix fuel injection nozzle assembly part number needed, unsure whether holder and nozzle tip are ordered as one unit or separately?
Open the Fuel Injection Valve exploded view on page 28. The complete Holder Assy, Nozzle Cmp, and nozzle spring are listed as separate orderable line items under the injector breakdown. Confirm whether you need the full holder assembly or just the nozzle tip; the return pipe assembly and injection pipe are also shown as individual part numbers on the same spread.
How will I receive this Yanmar 3TNV82A-BPTB, BPTB1, TB228 Parts Catalog?
Immediate download of the complete 40-page searchable Parts Catalog. Access it on any device, from a laptop at your desk to a phone in the field.
Can I print this manual?
Yes. The PDF has no DRM restrictions, so print any page or section you need for your shop. Works with any standard printer.
Document Quality
This document is a scanned PDF with an OCR layer, allowing you to search and copy text throughout. The text quality is generally crisp and easy to read, although some parts lists show minor fuzziness. Diagrams and illustrations are raster images, meaning they may pixelate when zoomed in, but all labels and numbers remain clearly readable. Pages are clean with no noticeable scan artifacts, stains, or skewed content. Please note that page 2 is largely blank, containing only the document header and footer.
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