Part of the Yanmar Parts Manuals.
With the main caps pulled and a worn crankshaft on the stand, the next question is which undersize bearing Yanmar actually supplies for this block. Publication Y00B5891, Yanmar's factory parts catalog for the 3TNE82A-B1 diesel engine (B27-2B specification), answers it in the listings: 0.25 undersize main and crankpin bearings, 0.25 oversize pistons and ring sets, each tied to the correct factory part number.
The 36-page PDF breaks the engine into 17 sections, from Cylinder Block and Crankshaft & Piston through the Fuel Injection Pump, Governor, Cooling Water System, Starting Motor, and the optional gasket set. When you are alone with a stripped engine and no parts counter to call, this is how you identify every plug, bush, seal, and gasket before you order.
It downloads instantly, prints cleanly, and lives on whatever device sits next to the stand, so the listings are with the engine, not back at the desk.
Complete the set for your 3TNE82A-B1, B27-2B
- Parts Catalog: Yanmar 3TNE68 Series (SA/G1A/G2A, incl. 3TNE68C) Engine Parts Catalog
- Parts Catalog: Yanmar 3TNE82A-BVA, VIO30-1 Parts Catalog
- Operator Manual: Yanmar 2TNE68-4TNE84T Diesel Engine Operator Manual
What's Inside This 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 |
