Part of the Yanmar Parts Manuals.
This 46-page 4TNV86CT-PTB Parts Catalog covers the complete parts breakdown for the P-TB260BEAC engine family. Inside, every major assembly is mapped from the cylinder block and gear housing through the crankshaft, piston, DPF, and turbocharger. You get OEM part numbers for every component in the exploded views, spanning lube oil, camshaft, flywheel housing, cylinder head, and cooling water system, with cross-reference callouts so you match a worn part to its factory number without guessing. Pull the crank and measure wear: the catalog lists the 0.25mm undersize main bearing by part number so you call in the right spec first time. No more reading serial numbers to a counter and hoping they match. Bookmarked by assembly, so you jump straight to the right section and read out the part number yourself.
What's Inside This Yanmar 4TNV86CT-PTB Parts Manual
| System | Pages | Key Topics |
|---|---|---|
| Cylinder Block | 4-5 | Camshaft Bush, Thrust Bearing Assy, Main Spare Parts Bearing Assy, Main Under-Sized Part Bearing Assy, Thrust Over-Sized Part Bearing |
| Gear Housing | 6-7 | Filler Cap, Pipe, Oil Seal, Pump Cover |
| Flywheel Housing & Oil Sump | 8-9 | Cap, Oil-Pan Spacer, Oil Pan Assy, Oil Seal Case Assy, Oil Seal |
| Cylinder Head & Bonnet | 10-12 | Rocker Shaft Assy, Rocker Arm Shaft, Rocker Arm Support, Rocker Spring, Rocker Arm Assy, Valve Cap, Suction Valve, Valve Spring |
| Suction Manifold | 13-14 | Stud, Bolt, Clamp, Washer |
| Exhaust Manifold | 15-16 | 12X1 Gasket, Gasket, Bolt, Clamp |
| Diesel Particulate Filter (DPF) | 17-18 | Silencer Gasket, Bolt, Nut |
| Camshaft & Driving Gear | 19-20 | Tappet, Push-Rod, Thrust Bearing, Idle Gear Spare Parts Bush |
| Turbine | 21-22 | Turbine Assy, Gasket, Bolt, Stud, Nut |
| Crankshaft & Piston | 23-24 | Crankshaft Assy, Crankshaft Gear, Crank V-Pulley, Ring Gear, Ring, Connecting Rod Assy, Crank Pin Bearing, Piston Pin Spare Parts Bearing |
| Lub.Oil System | 25-26 | Pump Gasket, Dipstick, Dipstick Guide, Gasket, Oil Inlet Pipe Assy, Oil Cooler Assy, Oil Cooler Bracket, Filter Bracket Assy |
| Lub.Oil Pipe | 27-28 | Hydraulic Switch, Retainer, 10X1 Gasket, Rubber Joint, PT3 Elbow, Check Valve Assy, Cooling Nozzle |
| Cooling Water System | 29-46 | Water Pump Gasket, Pump Plate, Joint, PT1 Elbow, Thermostat Gasket, 8X1 Gasket, Cooling Water Pump V-Pulley, A37 V-Belt |
Quick Reference Specifications
| Specification | Value | Page |
|---|---|---|
| Main Bearing Undersize | 0.25mm | p. 5 |
