Cummins ReCon Turbocharger 3770973RX, part number 3770973RX, for Cummins ISB/QSB (Holset). Supplied by Valley Fuel Injection & Turbo, a Northern California diesel specialist and authorized dealer since 1993, and shipped anywhere in the country.

Specifications

Remanufactured to Factory Specification

This is a genuine Cummins remanufactured unit, built and tested to the same specification as new, with a real warranty behind it. That is a different thing from a “rebuilt” or “will-fit” turbo: the factory reman process replaces wear components and validates the finished unit against the original spec. A refundable $800 core charge applies and comes back to you when we receive your old unit in rebuildable condition.

Signs Your Turbo Needs Replacing

• Loss of boost, low power, or long spool-up
• Shaft play, or a wheel that has contacted the housing
• Oil in the intake or exhaust, or blue smoke under load
• Whining, siren-like noise that rises with engine speed
• Cracked housing, or a turbo that has ingested debris

Worth saying plainly: a surprising number of “bad turbo” complaints are actually fuel problems. We test injection pumps and injectors every day, so if your symptoms point that direction, we will tell you before you spend money on a turbo.

Why Buy It From Valley Fuel Injection

We are not an order taker with a warehouse. We have been rebuilding and calibrating diesel fuel systems in Woodland since 1993, we are an authorized dealer for the people who actually build these units, and we ship nationwide. You get a genuine part, a real warranty, and someone on the phone who works on these engines.

Need a different turbo? We source almost anything: see turbocharger sourcing or browse all turbochargers. Chasing a fuel problem instead? See our injection pump and injector rebuild services.