Description

Toyota 4TNV88-BPTB 2010 Parts Catalog – OEM Factory Specs

Toyota 4TNV88-BPTB 2010 Parts Catalog – if you are looking up parts for an industrial Toyota engine, you already know the pain. Aftermarket websites will give you a part number that crosses to three different listings, none of which match the boost compensator you have bolted to the injection pump. I have seen guys order a fuel pump twice because the online lookup showed the wrong variant. This is the factory parts catalog. 42 pages, printed from the original PDF that Toyota released for the TB-250EAC machine that uses the 4TNV88-BPTB engine. It tells you exactly which screw goes where, and which revision number applies to your engine serial. No guesswork. No reprints. Just the same document my shop uses when we need to track down a camshaft bearing.

How to Read This Parts Catalog – Not as Simple as You Think

The first few pages explain the format. Page 1 has a note: “Parts mentioned in this Parts Catalog may not necessarily be standard equipping parts.” That means the diagram might show a component that was optional for your engine build. You need to check the “Remarks” column. The catalog uses a level system – dots tell you if something is an assembly part or a child part. The interchangeability marks (N, R, K, S, Q) indicate whether a new part number will replace the old one or if they are not interchangeable. Missing that mark and ordering the wrong camshaft will cost you a week of downtime. I have seen it happen.

Fuel Injection Pump: Why the Boost Compensator Matters

Look at Fig. 29 in this catalog – FUEL INJECTION PUMP (W/BOOST). The table lists four different pump part numbers: 725995-51590 and 725995-51591 depending on the engine serial break. The remarks say: “(1) BOOST COMPENSATOR TYPE. (2) OPTIONAL PART. TO E/ #00155, (4JH-DT,4JH-DT2 – DT2).” If your engine has an E/ # above 00155, you need the 51591 pump. Order the 51590 and the boost line won’t match. The catalog shows the exact screw quantities – nine M6x16 and two M8x20 – so you can verify you have all fasteners before you pull the old pump off. That is the level of detail you get from an OEM publication, not from a third-party site that copies a thumbnail.

Interchangeability Marks – Don’t Assume a New Part Will Fit

When a part changes, Toyota stamps a mark next to the part number. Q means new part is NOT interchangeable with old but old fits new. S means interchangeable both ways. R means not interchangeable at all. W means new part added. Z means discontinued. If you have an older engine and see an R mark next to a superseded part number, you cannot just buy the new number and expect it to bolt up. You might need to replace the entire assembly. Section 4 of the catalog covers these marks explicitly. I keep a printed copy of the legend on my bench because I use it every time I order parts for a pre-2010 Toyota industrial engine. The OEM catalog also lists the effective machine number columns (A-F) so you can match engine serial to the correct revision. That alone is worth the price of the PDF.

Engine Serial Number – The Key to Getting the Right Part

Every part listing in this catalog references an engine serial or machine number. For the fuel injection pump, column (A) through (F) show ranges like “A= E/ #00185” and “B= E/ #00200”. If your engine serial falls between those numbers, you use the part listed for that range. The catalog notes: “(A=E/#00185) indicates that the part number change from the best effective for the model at the col…” – the text cuts off, but the meaning is clear: you must know your engine serial to pick the correct camshaft, bearing retainer, or pump. I have a 4TNV88-BPTB in a TB-250EAC skid steer; the serial on the tag tells me which camshaft (122710-51560 vs 122710-51580) I need. Aftermarket catalogs ignore serial breaks. This manual does not.

Why an OEM Parts Catalog Beats Aftermarket Lookup Tools

Aftermarket websites copy one diagram and slap a generic part number on it. They do not show the interchangeability mark, the boost compensator note, or the effective serial range. If you rely on those, you will end up with a fuel injection pump that does not match your engine build date. I have a stack of returned parts on the shelf that prove it. This catalog is a direct scan of the original Toyota Parts Catalog from 2010. The 42 pages include the full parts list for the engine assembly (TB-250EAC), the injection pump, the camshaft, and all fasteners. No third-party editing. No condensed tables. Every page is exactly what Toyota released. For more Toyota engine parts documentation, check out the Toyota 7FB10-7FB20 Parts Catalog – Factory Specs or the Toyota Camry Celica Corolla Cressida Crown Parts Catalog – 27 Pages. If you work on industrial Toyotas, the Toyota Industrial Vehicle Parts Catalog 3FD10 to 3FD18 is another companion document. For background on why OEM documentation matters, see this Automotive Industry Overview. Also note that battery part numbers are not in this catalog; that information comes from the Automotive Battery spec sheets. But for the engine itself, this is the only source you need.

Other Resources Worth Having

• Toyota 7FB10-7FB20 Parts Catalog – Factory Specs
• Toyota Camry Celica Corolla Cressida Crown Parts Catalog – 27 Pages
• Toyota Industrial Vehicle Parts Catalog 3FD10 to 3FD18

Frequently Asked Questions

Does this catalog include torque specifications?

No. This is a parts catalog, not a service manual. It lists part numbers, diagrams, and interchangeability data. For torque values (like head bolts or injection pump fasteners), you need the corresponding service repair manual for the 4TNV88-BPTB. You can find that on the same site under engine service manuals.

How do I know if a part number has been superseded?

Look for the interchangeability mark in column 4 of the parts list. The catalog legend explains each symbol – Q, S, R, W, Z, K. For example, an R mark means the old part and new part are not interchangeable. If you see an S mark, they are interchangeable both ways. Always check the effective engine serial range listed in the same row.

Can I use this catalog to order parts online?

Yes. The part numbers are exactly what Toyota stamped on the components. Give the part number from the catalog to any Toyota industrial dealer or parts supplier. Make sure you verify the serial break columns (A-F) for your specific engine – the catalog shows which serial range each part applies to.

What’s the difference between this parts catalog and a service manual?

The parts catalog tells you what parts exist and how they are arranged (exploded diagrams). The service manual tells you how to remove, install, and torque those parts. Both are needed for a full repair. This catalog covers the 4TNV88-BPTB engine for the TB-250EAC machine. If you are rebuilding the pump, you also want the service manual for the injection pump.

You do not need to guess which pump your engine takes or whether a camshaft bearing is still available. That information is laid out in 42 factory pages with the serial breaks and interchangeability marks. Access the factory manual and keep it on your tablet or print it for the bench – the way we do it in real shops. Access the Factory Manual and get the correct part number the first time.