This is the IHI F31CAD-S0239B, a new RHF3 turbocharger, not a rebuild, for the Isuzu 4LE2 2.2L industrial diesel. Two catalogs list it for the 4LE2X version of that engine. IHI is the original maker of this turbo. It replaces Isuzu 8982354990 and 8982354991 and IHI spec numbers VA410239, VB410239, VC410239 and VD410239. The IHI code is CIIL. Isuzu fitted several RHF3 turbos to the 4LE2 family, so order this one by the numbers on your old turbo, not by engine model alone.

Low boost, black smoke under load, oil in the intake tract or shaft play at the compressor wheel are the usual reasons this turbo gets replaced. Check the oil feed and drain lines, the air filter and the crankcase breather before you fit the new one, since those are what normally kill a small turbo on an industrial engine.

Specifications

Fits / Applications

• Isuzu 4LE2 2.2L industrial diesel engine, listed for the 4LE2X version
• Engines whose turbo is Isuzu 8982354990 or 8982354991
• IHI code CIIL, IHI spec VA410239, VB410239, VC410239 or VD410239
• A different part number from IHI F31CAD-S0182B (Isuzu 8982236170, IHI code CIGO). Order by the numbers on your old turbo.
• Other 4LE2 turbos have their own numbers: Isuzu 8980305710 (John Deere 75D and 85D, Hitachi ZX75US-3 and ZX85USB-3) and Isuzu 8980928220 (some Kobelco excavators). Neither number is this turbo.

Change the engine oil and filter, make sure the oil feed and drain lines are clear, and prime the turbo with clean oil before the first start. Clean the intake piping and check the air filter housing for dust leaks.

Part Numbers & Cross Reference

IHI F31CAD-S0239B  ·  Isuzu 8982354990  ·  Isuzu 8982354991  ·  IHI spec VA410239  ·  IHI spec VB410239  ·  IHI spec VC410239  ·  IHI spec VD410239  ·  IHI code CIIL  ·  IHI, G suffix version F31CAD-S0239G

Cross-reference numbers can change with engine serial, build year and emissions tier, so treat this list as a starting point. Send us your engine serial number and we will confirm the exact match against your build before anything ships. That check is free and takes a few minutes.

Frequently Asked Questions

What engine does the F31CAD-S0239B fit?

The Isuzu 4LE2 2.2L industrial diesel. Two catalogs name the 4LE2X version. The 4LE2 family uses several RHF3 turbos, so match the numbers on your old turbo.

What numbers does the F31CAD-S0239B replace?

Isuzu 8982354990 and 8982354991, and IHI spec numbers VA410239, VB410239, VC410239 and VD410239. The IHI code for this turbo is CIIL.

Is the F31CAD-S0239B the same as the F31CAD-S0182B?

No. Both are IHI RHF3 turbos for the Isuzu 4LE2 2.2L, but they are separate part numbers. The F31CAD-S0182B is Isuzu 8982236170, code CIGO. This one is Isuzu 8982354990, code CIIL.

Is this a new turbo, and how do I confirm it is right for my machine?

It is a new IHI turbocharger, not a rebuild. Call 530-668-0818 with the numbers off the tag on your old turbo and the engine model and serial number, and we will check it before you order.

Why Buy From Valley Fuel Injection

We are a diesel fuel-injection and turbocharger shop in Woodland, CA, rebuilding pumps, injectors and turbos on our own benches since 1993, not a drop-ship storefront. When you call, you talk to the people who test these units. We verify fitment against your engine serial, VIN or build date before anything ships, so the right part arrives the first time.