Part of the Yanmar Parts Manuals.
Need the exact OEM part numbers for your Yanmar 3TNE82A-B1 engine? This 36-page parts catalog (OEM #Y00B5891) covers the complete B27-2B engine from cylinder block to generator. Inside, exploded-view sections break down every major assembly: gear housing, flywheel housing and oil sump, cylinder head and bonnet, fuel injection pump and pipe, governor linkage, starting motor, generator, and both the cooling and lubrication circuits. Each section pairs detailed exploded diagrams with factory part numbers and cross-references, so you know exactly what to order before you click checkout. Replacement main bearings are listed at US=0.25 undersize, and the camshaft key is called out at 7x14. Stop ordering the wrong part based on forum guesses. Bookmarked by assembly, jump directly to any system and grab the part number you need.
What's Inside This Yanmar 3TNE82A-B1, B27-2B Parts Manual
| System | Pages | Key Topics |
|---|---|---|
| Cylinder Block | 2-3 | Cylinder Block Assy, Main Bearing, Thrust Bearing, Camshaft Bush, Head Gasket |
| Gear Housing | 4-5 | Gear Housing Assy, Oil Seal, Lub. Oil Supply Cap, Gears Housing Flange, Hydraulic Oil Pump Cover, Gasket, Knock Pipe, Blind Cover |
| Flywheel Housing & Oil Sump | 6-7 | Flywheel Housing, Lub. Oil Sump Spacer, Oil Sump Assy, Oil Seal Case Assy, Oil Seal, Flywheel Cover Cap |
| Cylinder Head & Bonnet | 8-9 | Cylinder Head Assy, Valve Guide, Suction Valve, Exhaust Valve, Valve Spring, Spring Retainer, Valve Stem Seal, Valve Cap |
| Suction Manifold & Air Cleaner | 10-11 | Suction Manifold, Gasket, Air Heater, Suction Silencer, Cleaner Support Assy, Support Seat, Band, Rubber Sheet |
| Exhaust Manifold & Silencer | 12-13 | Exhaust Manifold, Exhaust Manifold Gasket, Gasket, Silencer, Silencer Stay |
| Camshaft & Driving Gear | 14-15 | Camshaft Assy, Camshaft Gear, Thrust Metal, Idle Gear Shaft, Gear w/ Bush, Idle Gear Bush, Tappet, Push Rod |
| Crankshaft & Piston | 16-17 | Crankshaft Assy, Crankshaft Gear, Crankshaft V-pulley, Flywheel w/ Gear, Ring Gear, Piston Assy, Piston Ring Set, Connecting Rod Assy |
| Lubrication Oil System | 18-19 | Lub. Oil Pump Assy, Lub. Oil Pump Gasket, Lub. Oil Dipstic, Dipstick Guide, Gasket, Oil Inlet Pipe Assy, Strainer Bracket, Filter 80X80L |
| Cooling Water System | 20-21 | Cooling Water Pump, Cooling Water Pump Gasket, V-belt, V-pulley, Cooling Fan, Thermostat Cover, Gasket, Thermostat |
| Fuel Injection Pump | 22-23 | Fuel Injection Pump Assy, Camshaft, Thrust Ball Bearing, Cam Shaft Support, Plunger w/ Barrel, Retainer A, Plunger Spring Shoe, Plunger Spring |
| Fuel Injection Pipe | 24-25 | Fuel Injection Valve Assy, Fuel Injection Nozzle Assy, Nozzle Holder Assy, Nozzle Spring, Nozzle Spring Seat, Stop Plate, Injection Pipe Retainer |
| Fuel Pipe | 26-27 | Fuel Strainer Assy, Taper Valve, Taper Valve Spring, Lever, Strainer Cup, Retaining Ring, Spring, Element |
| Governor | 28-29 | Governor Case, Packing, Cover, Link, Governor Weight Assy, Sleeve, Control Shaft Assy, Shaft Spacer |
| Starting Motor | 30-31 | Starter, Armature Assy, Bearing, Field Coil Assy, Brush, Rear Cover, Brush Holder Assy, Brush Spring |
| Generator | 32-33 | Collar, Plate Assy, Stator, Coupler, Flywheel Assy, Adjuster |
| Gasket Set (Optional) & Tool | 34-36 | Gasket Set, Head Gasket, Bonnet Gasket, Exhaust Manifold Gasket, Lub. Oil Pump Gasket, Cooling Water Pump Gasket, Liquid Gasket, Flex Horn |
Quick Reference Specifications
| Specification | Value | Page |
|---|---|---|
| Main Bearing Replacement Size | US=0.25 | p. 2 |
| Crankpin Bearing Replacement Size | U.S=0.25 | p. 16 |
| Main Bearing Undersize | 0.25 | p. 2 |
| Thrust Bearing Oversize | 0.25 | p. 2 |
| Camshaft Key Size | 7x14 | p. 14 |
| Crankshaft Key Size | 7x14 | p. 16 |
| Crankpin Bearing Undersize | 0.25 | p. 16 |
| Piston with Ring Oversize | 0.25 | p. 16 |
| Piston Ring Set Oversize | 0.25 | p. 16 |
| V-Belt Type | A-39 | p. 20 |
Yanmar 3TNE82A-B1, B27-2B Common Problems This Manual Covers
Searching for Yanmar 3TNE82A-B1 replacement part numbers after experiencing severe low oil pressure and bearing noise p. 2
Inspect the Cylinder Block diagram on page 2 to identify your required components. Find the exact part numbers for the main bearing assemblies. Note that the available undersize replacement specification is 0.25. Match these part numbers against your specific engine serial number before ordering your rebuild components.
Manual Section: Cylinder BlockCannot find correct replacement water pump and drive belt part numbers to fix severe engine overheating p. 20
Check the exploded parts view on page 20 to locate the water pump and cooling fan components. Identify the correct replacement belt part number, verifying it matches the required A-39 V-belt type specification. Order the corresponding pump gaskets at the same time to prevent future coolant leaks.
Manual Section: Cooling Water SystemNeed exact part numbers for replacement components to fix excessive exhaust smoke and internal compression loss p. 16
Review the rotating assembly breakdown on page 16 to find the correct piston ring set part numbers. Select the proper components for your rebuild, keeping in mind the piston ring set oversize specification is 0.25. Verify the crankshaft key size is 7x14 while ordering your lower end parts.
Manual Section: Crankshaft & PistonLooking for correct replacement part numbers to resolve rough idle and damaged camshaft driving gears p. 14
Examine the valvetrain component list on page 14 to locate the camshaft assembly part numbers. Verify you select the correct driving gear components for your serial number. Confirm you have the required replacement keys, noting the specific camshaft key size is exactly 7x14 before ordering your parts.
Manual Section: Camshaft & Driving GearFrequently Asked Questions
What are the replacement specifications for gasket cylinder head?
The manual identifies the gasket cylinder head with part number 119812-01330. It is listed as "GASKET, HEAD" in the Cylinder Block section. The manual provides the part number for replacement but does not specify dimensions or material details.
What are the replacement specifications for fuel injection pump?
The manual lists the fuel injection pump assembly as "PUMP ASSY, F.INJECT." with part number 719824-51360. Additionally, the "GEAR, FUEL INJ. PUMP" has part number 129150-25900. The manual provides these part numbers for replacement but does not include detailed specifications.
How do you fix searching for Yanmar 3TNE82A-B1 replacement part numbers after experiencing severe low oil pressure and bearing noise?
Inspect the Cylinder Block diagram on page 2 to identify your required components. Find the exact part numbers for the main bearing assemblies. Note that the available undersize replacement specification is 0.25. Match these part numbers against your specific engine serial number before ordering your rebuild components.
How do you fix cannot find correct replacement water pump and drive belt part numbers to fix severe engine overheating?
Check the exploded parts view on page 20 to locate the water pump and cooling fan components. Identify the correct replacement belt part number, verifying it matches the required A-39 V-belt type specification. Order the corresponding pump gaskets at the same time to prevent future coolant leaks.
Is this Yanmar 3TNE82A-B1, B27-2B Parts Catalog a digital download?
A 36-page Parts Catalog in searchable PDF format, available the moment you complete checkout. View on computer, tablet, or phone, with no shipping wait.
Can I print this manual?
The PDF is DRM-free. Print whatever sections you need to take out to the shop. Standard letter or A4 paper works.
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