Turbocharger Tech Explained

The Mitsubishi TD06 Turbocharger is one of the most versatile frame-size units Mitsubishi Heavy Industries ever produced, showing up in everything from marine diesels and industrial gensets to the tuner-favorite 4G63 and 6G72 engines. If you run diesel equipment or build performance cars, understanding how the TD06 platform works, what it fits, and how to

The Mitsubishi TD04 Turbocharger is one of the most widely used small-frame turbos ever built, powering everything from Subaru WRX performance engines to Volvo passenger cars and a broad range of light-duty diesel and industrial applications. If you turn wrenches on European or Japanese platforms, or you run a small fleet with compact diesels, you

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

The Garrett GT1749V Turbocharger is one of the most widely fitted variable geometry turbos in the diesel world, powering millions of Volkswagen TDI and Audi A4 engines built from the late 1990s through the 2000s. If you turn wrenches on European diesels, you already know this unit intimately, because you have almost certainly diagnosed one

The Garrett GT2056V Turbocharger is one of the most widely used variable-geometry turbos on the Mercedes OM642 3.0L V6 diesel and the 2007-2009 Dodge Sprinter, and if you turn wrenches on these vans and SUVs long enough, you’ll get to know this unit intimately. It’s a compact, VNT-style charger built to deliver strong low-end torque

The Holset HX30 Turbocharger is one of the most versatile fixed-geometry chargers Cummins ever bolted to a small block B-series engine, and it remains a go-to unit for 3.9L 4BT and early 5.9L 6BT applications where response and durability matter more than peak horsepower. If you run a bread truck, a repowered project, a marine

The Holset HE400WG Turbocharger is a wastegated turbo for 9 to 13 liter engines: the Cummins ISLe, the Volvo and Mack 11-liter, DAF and PACCAR engines and others. If you run one of these in a truck, bus or machine, you already know how much rides on getting the boost control right. This unit replaced

The Holset HE451VE Turbocharger is a factory variable-geometry turbo of the Cummins ISX15 from the 2010 emissions generation on, and it is one of the most demanding turbo applications in the Class 8 world. The HE451VE pairs Holset’s sliding-nozzle VGT system with an electronic actuator. It is not the only ISX15 turbo: other engines of