Description

TB 4TNE88, 4TNE88-EB, 4TNE88-ETB, 4TNE88-ETB2 2012 Parts Catalog

Ordering a fuel injection pump for a 4TNE88-EB and getting one that bolts up but has the wrong boost compensator—that’s a half-day lost and a return headache. I’ve seen it happen because a tech used an aftermarket cross‑reference. This 2012 Parts Catalog from TB covers the 4TNE88, 4TNE88-EB, 4TNE88-ETB, and 4TNE88-ETB2 with serial number ranges printed on Page 1. If you are turning wrenches on one of these engines and need the exact part number, you are looking at the right document.

Forty‑three pages of factory illustrations, reference numbers, and compatibility symbols. Page 0‑1 explains how to read the catalog—every symbol, every part mark. No generic parts book. No third‑party guessing. This is the same binder the dealer parts counter uses.

Engine Coverage and Serial Number Breakdown

Page 1 lists the applicable engine models and their serial number ranges: 4TNE88‑EB(1) P/N 14510004‑14513260, 4TNE88‑ETB(1) P/N 14510101‑14513260, and 4TNE88‑ETB2 P/N 1451010EAB. If your engine serial falls outside these, double‑check before ordering. The catalog also covers the TB145 platform (P‑TB145EAB) for serials 14510004‑14513260.

This matters because internal parts like camshafts and retainers changed across production. The catalog groups parts by Fig. number and includes interchange codes (N, R, S, Q) so you know whether a superceded part works backward.

How This Catalog Is Organized: Fig. System and Part Numbers

Page 3 shows the title and Fig. index: Cylinder Block (Fig. 1), Gear Housing (Fig. 2), Flywheel Housing & Oil Sump (Fig. 3), Cylinder Head & Bonnet (Fig. 4), Suction Manifold & Air Cleaner (Fig. 5), Exhaust Manifold & Silencer (Fig. 6), Camshaft & Driving Gear (Fig. 7), Crankshaft & Piston (Fig. 8), Lubrication Oil System (Fig. 9), Cooling Water System (Fig. 10), Fuel Injection Pump (Fig. 11), Governor (Fig. 12), and more. Each Fig. page includes an exploded view with reference numbers that match a parts list table.

For example, the Fuel Injection Pump (Fig. 11) lists two pump assemblies: part number 725995‑51900 and 725995‑51910, plus screws, camshaft, roller bearing, and retainer. The compatibility column shows which pump fits which engine variant—A‑4JH‑DT, E‑4JH‑DT, etc. If you need the boost compensator type, the table footnotes tell you it’s standard on 4JH‑DT and 4JH‑GT only up to engine number E/#00155.

Parts Illustration and Reference Number System

Every figure uses a three‑level indent system for parent, child, and grandchild parts. A black circle (●) marks the parent assembly, and open circles (○) mark sub‑components. The “Level” column in the list tells you the relationship at a glance. When you see “■” before a part, that is the parent—don’t order a child part if the assembly is what you need.

Change marks appear as “I” next to newly revised parts. Compatibility symbols (N, R, S, Q, W, Z, F, K) explain interchangeability forward and backward. For example, “N” means the new part replaces the old one, but the old one won’t work in place of the new. That prevents the mistake of ordering an obsolete part that requires additional components. The catalog also includes “实号机” (actual serial number) columns for clutch, engine, machine, and tractor numbers to cross‑reference between equipment models. For a deeper dive into how diesel injection systems work, read this Wikipedia article on diesel engines. If you’re working on a similar engine family, check the TB 108 2TNE68 ETBA Parts Catalog/Guide.

Audience Fit: Who Needs This Parts Catalog?

You are a shop owner or a DIY mechanic who has the engine out and needs a gasket set, a piston, or a fuel pump. You want the part number, the quantity, and the supersession history—all in one place. This catalog gives you that without calling the dealer and hoping the counter guy reads the same book. It also covers serial‑specific details that aftermarket catalogs ignore. If you service agricultural or industrial equipment powered by these TB diesels, this saves hours of cross‑referencing.

A home‑garage enthusiast rebuilding a 4TNE88‑ETB2 from a generator set will find every fastener size (e.g., Screw W 6×16 and Screw W 6×20) listed with quantity per assembly. No more guessing which bolt length goes where. Page 1 includes a “How to read this Parts Catalog” guide with examples in English and Japanese—print it and keep it with the book.

Source Authenticity: Why OEM Beats Aftermarket

I have seen aftermarket parts catalogs that list the wrong bolt grade or skip the interchange codes. This TB factory catalog includes the level system and the change marks. The compatibility table on Page 0‑1 tells you exactly when a part number supersedes another and whether it fits backward. Aftermarket books omit that detail. When a head gasket has two different thicknesses depending on serial number, the OEM catalog breaks it down. That’s why I keep the factory book on the bench, not a third‑party reprint.

If you repair older equipment like a Massey-Harris-Ferguson FF 30 GS 1957 Parts Catalog | OEM Fastener Guide or specialized wear parts from Futura Wear Technology Parts Catalog, you already understand the value of source‑verified data. This TB catalog matches that standard.

FAQ

Does this parts catalog include torque specifications or repair instructions?

No. This is a parts catalog—it contains part numbers, quantities, compatibility codes, and exploded diagrams. It does not include repair procedures, torque specs, or service intervals. Use the factory service manual for those.

How do I read the compatibility symbols like N, R, S, Q in the parts list?

Page 0‑1 explains every symbol. N means the new part fits forward but the old part does not fit new assemblies. R means full interchangeability both directions. S means both old and new are interchangeable in either direction. Q means the new part is not backward‑compatible but the old part fits newer builds. W marks a new addition, Z marks a discontinued part, F means only interchangeable as a set, and K means a quantity change only. The table also shows “实号机” columns that tie parts to specific engine, clutch, or machine serial numbers. If your engine serial falls outside the ranges on Page 1, those symbols tell you whether a later or earlier part can be used. Always cross‑check the “Remarks” column below the list—it may contain notes about optional boost compensator types or special order parts.

You have the engine apart, the old part in hand, and you need the correct replacement. This 43‑page factory document removes the doubt. Access the Factory Manual from AutoRepairManuals, print the pages you need, and order from the part numbers that match your serial number. For more background on the principles behind these diesel engines, refer to this Wikipedia article on diesel engines.