Part of the Yanmar Parts Manuals.
Somewhere around the third parts order for a 3TNV88-XBV rebuild, the guesswork gets expensive: an oil seal that fits a different 3TNV88 variant, a bearing set one spec code off. This catalog ends that. It is Yanmar publication Y00B7200, the 34-page parts book for the 3TNV88-XBV, with exploded views and part numbers for every group on the engine.
The coverage runs from the cylinder block through the gear housing, cylinder head, camshaft and driving gear, crankshaft and pistons, fuel injection pump, injectors and fuel lines, the lube oil and cooling water systems, starting motor, generator, and the non-asbestos gasket set. Rebuild sizes are listed too, including 0.25 undersize main and thrust metals and 0.25 oversize pistons with rings.
Whatever this engine powers, the point is the same: match the diagram, read the number, and order the right part the first time.
What's Inside This Yanmar 3TNV88-XBV Parts Manual
| System | Pages | Key Topics |
|---|---|---|
| Engine 3TNV88-XBV | 1 | - |
| Cylinder Block | 2-3 | Cylinder Block Assy, Camshaft Bush, Main Bearing Set, Thrust Metal, Gasket, Main Metal |
| Gear Housing | 4-5 | Gear Housing Assy, Oil Seal, Pump Cover Assy, Lub. Oil Pump Cover, Relief Valve, Spring, Gear Case Frange, Filler Cover |
| Flywheel Housing & Oil Sump | 6-7 | Flywheel Housing, Flywheel Cover Cap, Oil Sump Spacer, Lub. Oil Sump Assy, Oil Seal Case Assy, Oil Seal |
| Cylinder Head & Bonnet | 8-9 | Engine Lifter, Rocker Shaft Assy, Rocker Arm Shaft, Rocker Arm Support, Spring, Rocker Arm Assy, Valve Cap, Cylinder Head Assy |
| Suction Manifold | 10-11 | Breather Pipe, Intake Manifold, Int. Manifold Gasket, Air Heater, Gasket |
| Exhaust Manifold | 12-13 | Exhaust Manifold Gasket, Bolt, Nut |
| Camshaft & Driving Gear | 14-15 | Tappet, Push Rod, Camshaft Assy, Thrust Metal, Camshaft Gear, Idle Gear Shaft, Idle Gear Assy, Idle Gear Bush |
| Crankshaft & Piston | 16-17 | Crankshaft Assy, Crankshaft V-pulley, Flywheel Assy, Ring Gear, Piston Assy, Piston Ring Set, Connecting Rod Assy, Piston Pin Bush |
| Lub. Oil System | 18-19 | Lub. Oil Dipstick, Dipstick Guide, Gasket, Cooler In Pipe, Lub. Oil Switch, Lub. Oil Pipe Assy, Joint Bolt Assy, Oil Cooler Assy |
| Cooling Water System | 20-21 | Water Pump Assy, Gasket, Plate, Joint, Thermo. Case Gasket, V-pulley, V-belt, Cooling Fan |
| Fuel Injection Pump | 22-23 | Fuel Injection Pump Assy, Pump Bracket, Bolt |
| Fuel Injection Valve | 24-25 | Fuel Injector, Nozzle Cmp, Nozzle Holder Assy, Nozzle Spring, Nozzle Spring Seat, Stop Plate, Retainer, Injection Pipe Retainer |
| Fuel Line | 26-27 | Filter Bracket, Fuel Filter, Fuel Pipe Assy, Fuel Oil Pipe |
| Starting Motor | 28-29 | Armatuer, Bearing, Field Coil Assy, Brush, Brush Holder Assy, Start Brush Spring, Rear Cover |
| Generator | 30-31 | Belt Adjuster, Rotor Assy, Bearing Cover, Drive Flame Assy, Plate, Rear Flame Assy, Cover |
| Gasket Set & Tools | 32-34 | Gasket Set, Valve Stem Seal, Nozzle Protector, Nozzle Seat, Bonnet Gasket, Exhaust Manifold Gasket, Silencer Gasket, Thermo. Case Gasket |
Quick Reference Specifications
| Specification | Value | Page |
|---|---|---|
| Main Metal Undersize | 0.25 | p. 2 |
| Thrust Metal Undersize | 0.25 | p. 2 |
| O-RING 1A P-32.0 Size | 32.0 | p. 4 |
| Drain Plug Size | M22 | p. 6 |
| Nut Thread Specification | M8XP1.0 | p. 8 |
| Key Size | 7X 14 | p. 14 |
| Piston Pin Diameter | D26 | p. 16 |
| Piston Pin Length | L70 | p. 16 |
| Piston w/Ring Oversize | 0.25 | p. 16 |
| Switch Pressure/Weight | 0.5KG | p. 18 |
| V-Pulley Diameter | 120 | p. 20 |
Yanmar 3TNV88-XBV Common Problems This Manual Covers
Hard starting after fuel work
Air drawn in at a loose union or a tired injection pump will leave a 3TNV88 cranking without firing. The Fuel Injection Pump pages break the pump down by part number so you replace the correct assembly for this spec code instead of a lookalike from another variant.
Manual Section: Fuel Injection Pump p. 22Smoke and rough running from worn injectors
Dribbling nozzles show up as smoke, uneven idle, and washed cylinder walls. The Fuel Injection Valve section identifies the injector assemblies and their sealing parts, so the set that goes back in is the right one for this engine.
Manual Section: Fuel Injection Valve p. 24Oil leaks at the flywheel end
A wet bellhousing usually traces to the rear oil seal or sump sealing. This section lists the oil seal case assembly, the seal itself, the sump, and the M22 drain plug with its 22S seal washer, everything you need on the bench before the flywheel goes back on.
Manual Section: Flywheel Housing & Oil Sump p. 6Running hot at load
Water pump and thermostat wear are the usual suspects when temperature climbs under load. The Cooling Water System pages call out the water pump assembly, thermostat and cover, fan, and V-pulley by part number.
Manual Section: Cooling Water System p. 20Worn bearings and tired compression
With the crank miked and the bores measured, this is the section that turns clearances into an order: crankshaft assembly, piston and ring sets, rod assemblies, and the 0.25 oversize piston with rings for a rebore.
Manual Section: Crankshaft & Piston p. 16Slow cranking or no crank
Once battery and cables check out, a dragging starter is a parts job. The Starting Motor section gives the starter assembly and related hardware so you can quote and order the repair in one pass.
Manual Section: Starting Motor p. 28Low oil pressure warnings
Before condemning the pump, the lube circuit itself deserves a look. The Lub. Oil System pages cover the dipstick and guide, oil pipes, oil cooler assembly, and the pressure switch, all identified by part number.
Manual Section: Lub. Oil System p. 18Frequently Asked Questions
Which engine does this catalog cover?
It covers the Yanmar 3TNV88-XBV industrial diesel engine specifically, under Yanmar publication number Y00B7200. It is the parts book for that build code, so the numbers match this variant rather than other 3TNV88 versions.
Does it include torque specs or repair procedures?
No. This is a parts catalog: exploded diagrams and part numbers for identification and ordering. Torque sequences, valve lash, and timing procedures live in the service manual, so pair the two if you are doing teardown work rather than just ordering parts.
Are undersize and oversize rebuild parts listed?
Yes. The Cylinder Block section lists the 0.25 undersize main metal and thrust metal sets, and the Crankshaft & Piston section lists the 0.25 oversize piston with rings, so a reground crank or rebored block can be ordered for directly from the book. p. 2
Does it cover gaskets and seals?
Yes. Sealing parts appear throughout the individual sections, and the Gasket Set & Tools section at the back lists the non-asbestos gasket set, O-rings, valve stem seals, and bonnet gasket in one place for a full reseal. p. 32
Is this Yanmar 3TNV88-XBV Parts Catalog a digital download?
This is a 34-page searchable PDF ready for immediate download. Works on any device, so pull it up on your phone while you're under the hood. No shipping, no waiting.
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.
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