Turbocharger Tech Explained

The Garrett GT25 Series Turbocharger is one of the most widely applied small-frame units Garrett has ever built, and that is exactly why it causes so much confusion at the parts counter. The frame covers everything from gasoline performance builds to small light-duty and commercial diesels, which means two turbos that share the “GT25” family

The IHI VF40 Turbocharger is the factory snail bolted to the 2005-2006 Subaru Legacy GT and Outback XT, feeding boost to the turbocharged 2.5L EJ255 boxer four. If you own one of these cars or keep them running in a shop, knowing exactly which turbo fits, how it behaves, and what kills it will save

The Garrett T3 Turbocharger is one of the most recognizable turbos ever built, a journeyman design that spent decades bolted to everything from small-displacement diesels to boosted gasoline street cars. If you have turned a wrench since the 1980s, you have seen a T3 come across the bench, and chances are you have rebuilt a

The Holset HE200WG Turbocharger is the compact wastegated workhorse behind millions of Cummins ISF engines and light commercial diesels running in delivery vans, cab-forward trucks, and midsize work platforms. It is small, boost-responsive, and built to handle modern emissions-era demands, which is exactly why it shows up in so many Foton and other Cummins-powered chassis

The cheapest turbo listing on Amazon or eBay will cost you more in the long run. Here’s how to shop smart and avoid the pitfalls that catch most diesel owners.

The Garrett T04B Turbocharger is one of those workhorse designs that refuses to disappear from shop floors, even decades after it first bolted onto agricultural, industrial, and light commercial diesel engines. Built around the proven T-Series frame that Garrett refined through the 1970s and 1980s, the T04B earned a reputation for tough compressor housings, forgiving

The Holset HX35W Turbocharger has earned a reputation as one of the most reliable factory chargers ever bolted to a diesel engine, and the wastegate version fitted to the 5.9L Cummins is the exact reason so many trucks are still running strong past 400,000 miles. If you own a 1994 to 2002 Dodge Ram with

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 small and mid-size diesel engines running in tractors, combines, generator sets, and off-highway machinery. It belongs to the Schwitzer S1 frame (later sold as the S100), one size below the S2 / S200, and in PT Turbo’s catalog

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.