Turbocharger Tech Explained

The BorgWarner Schwitzer S2A Turbocharger is one of the most widely used chargers in agricultural and construction equipment, and if you run John Deere or Case machines built from the late 1980s through the 2010s, there’s a strong chance you’ve got one bolted to your engine right now. It’s a fixed-geometry, single-stage unit engineered for

The BorgWarner Schwitzer S1B Turbocharger is one of the workhorse boosting units you will find bolted to mid-displacement diesel engines running in tractors, combines, generator sets, and off-highway machinery. It sits in the S1 family of the BorgWarner S200-generation frame, sized for engines in the roughly 4.0 to 7.0 liter range that need reliable, low-maintenance

The IHI RHF4 Turbocharger is one of the most widely used small-frame turbos in the world, powering everything from light commercial vans and pickups to compact marine diesels and industrial gensets. Its compact housing, quick spool, and proven reliability have made it a favorite among manufacturers building engines in the 1.5L to 3.0L displacement range.

The BorgWarner EFR Series Turbocharger represents one of the most significant leaps in aftermarket forced induction technology, bringing motorsport-grade materials and dual ceramic ball bearing cartridges to diesel builders who demand fast spool and reliable boost under heavy load. EFR stands for Engineered For Racing, but over the past decade these units have earned a

The BorgWarner B2 CHRA is one of those parts that quietly keeps thousands of medium-duty diesels on the road, and knowing when to swap just the cartridge versus the whole turbo can save you hundreds of dollars per job. The CHRA, or center housing rotating assembly, is the heart of any turbocharger. It carries the

The BorgWarner K27 Turbocharger is one of the most widely used medium-frame turbos in the European diesel world, powering everything from Mercedes-Benz commercial trucks to Deutz industrial engines and marine applications. If you run Mercedes OM-series diesels or wrench on European heavy equipment, chances are you have seen a K27 hanging off an exhaust manifold