S410G 178731 Turbocharger for Caterpillar 3406 | New

S410G 178731 Turbocharger for Caterpillar 3406 Engine 1980-2013

S410G, GTA470201BS, GT4702

This S410G (part numbers 178731 and 199114) is a single replacement turbocharger for the Caterpillar 3406, covering a long production span from 1980 through 2013. It is a large single turbo built for the steady high-load work the 3406 does in on-highway trucks, gensets and industrial equipment. Because the 3406 ran for over three decades, it carried many turbo part numbers, so the right unit comes down to your build and the number on the old turbo. Our S410G is built new to OEM-spec and balanced before it ships, and we check the part number against your engine serial first. We supply repair shops, fleets and distributors with single units and bulk orders.

Turbo Model

S410G, GTA470201BS, GT4702

OEM / Interchange Numbers

178731, 199114, 0R6055, 0R6167, 0R6168, 4P2061, 4P2062, 9Y1907, 465679-0001

Application

1980-2013 Caterpillar CAT 3406 Engine

Service & Support

1-Year Unlimited-Mileage Warranty
US Stock, Fast Dispatch
Bulk Orders Welcome
White-Label Support
Fully Certified

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FAQ

The S410G 178731 / 199114 fits the Caterpillar 3406 across its 1980-2013 production. Confirm by the number on your current turbo and your engine serial.

177148 is the S410G for the later 3406E and C15 at a different rating. 178731 covers the broader 3406 range. Same frame family, different units, so check your number before ordering.

The 3406 ran for over 30 years and used several turbo numbers. Read the part number off your old turbo's nameplate and send it with your engine serial; we cross-reference it to the exact unit.

Yes, brand new with 100% new components, built to OEM-spec and balanced before dispatch. No core charge and nothing to return. One-year warranty.

Yes. We hold it in US stock and supply shops, fleets and distributors with single units or bulk orders, priced for resale.

S410G 178731 Turbocharger for the Caterpillar 3406

The 3406 is one of Cat's longest-running diesels, and the S410G turbo for it spans a wide range of builds. Matching the right part number is the whole job here.

Why the 3406 needs careful part-number matching

The 3406 was built from 1980 to 2013 across mechanical and later variants, so a single engine model carries several turbo numbers like 178731, 199114 and the 0R6000 / 4P series. They share the S410G frame but differ in housing and rating. Reading the number off your old turbo and giving us the engine serial is the surest way to get a unit that bolts straight on.

How this differs from the 3406E/C15 S410G

The 3406E and C15 use a related S410G turbo under part number 177148 with a different rating. If your engine is a 3406E or C15 rather than an earlier 3406, confirm the number, since the two are not the same unit. We carry both, so we can point you to the correct one once we have your numbers.

Detail	S410G 178731
Turbo frame	S410G (GTA470201BS / GT4702)
Type	Single turbo
Engine	Caterpillar 3406
Years	1980-2013

Signs of a worn turbo

Low boost and power under load, dark smoke, a new whine, oil at the wheels and shaft play you can feel by hand all point to end of life.

Before you install

Check and clear the oil feed and drain lines, prime the new turbo with clean oil, and inspect the intake for debris from the old unit. Fixing the root cause first keeps the new turbo alive and the warranty valid. See our quality process for how each unit is tested.