At General Truck Parts, weโ€™re expanding our engine component offering with a full line of heavy-duty truck turbochargers from trusted manufacturers like AFA Industries and PAI Industriesโ€”available in both new and remanufactured options to fit a wide range of diesel applications.

Whether youโ€™re rebuilding an engine, replacing a failed turbo or upgrading performance, we now stock high-demand models including:

AFA Turbochargers:
A3792328R, A5354472, A4045934, M85020014R, A3527046, D23515635, A5455956R, A5606424, A4352526, A3792786, A5325937, 4W5188, D23522188, 1906210, D23528047, DA4720901880HP, 2395581R, 2900508R, HN-A2882112HP

PAI Turbochargers:
9304, 9279, 9276, 9277, 92760, 92530, 831122OEM, 831121, 681213, 681212, 681203X, 381209

โ€ฆand many more available through our online catalog of turbochargers and components.

What Does a Turbocharger Do?

A turbocharger is a forced induction device that increases engine efficiency and power by forcing more air into the combustion chamber:

  • Exhaust gases spin a turbine
  • The turbine drives a compressor
  • The compressor pushes more air into the engine
  • More air and fuel equals more power and better efficiency

Modern diesel engines rely heavily on turbochargers to:

  • Improve horsepower and torque
  • Increase fuel efficiency
  • Reduce emissions
  • Maintain performance at altitude

A Brief History of Turbocharging in Heavy-Duty Engines

Turbocharging has evolved alongside diesel engine innovation from major OEMs like:

Key milestones:

  • 1950sโ€“1970s: Early adoption in heavy-duty diesel engines
  • 1980sโ€“1990s: Widespread use in on-highway trucks
  • 2000sโ€“Present: Advanced VGT (Variable Geometry Turbo) systems for emissions and efficiency

Companies like Cummins and Caterpillar pioneered turbo integration, while modern platforms from Volvo, Detroit, and Paccar rely on electronically controlled turbo systems for precise performance.

Engine Compatibility & Applications

Our turbocharger lineup supports a wide range of popular heavy-duty diesel engines:

Cummins

Cummins Engines

Cummins engines are among the most widely supported:

Common cross references:

  • Holset turbo numbers (HX, HE, HE400VG series)
  • OEM numbers such as 3792328, 5354472
Caterpillar

Caterpillar Engines

Caterpillar turbochargers are known for durability:

Cross references often include:

  • BorgWarner / Schwitzer numbers
  • CAT OEM part numbers (e.g., 4W5188)
PACCAR

PACCAR Engines
(MX Series)

PACCAR engines:

  • MX-11 / MX-13
  • Supported by models like A5606424 and related variants
Detroit

Detroit Diesel Engines

Detroit Diesel platforms include:

These often cross to:

  • BorgWarner turbos
  • OEM Detroit Diesel numbers (A4720901880, etc.)
Mack

Mack & Volvo Engines

Mack Trucks and Volvo Trucks share many engine platforms:

  • Mack MP7 / MP8
  • Volvo D11 / D13 / D16

Turbo models:

Cross references include:

  • Volvo OEM turbo numbers
  • BorgWarner / Mitsubishi turbo equivalents

Cross-Reference Coverage

Our turbochargers cross to major OEM and aftermarket brands, including:

  • Holset (Cummins Turbo Technologies)
  • BorgWarner / Schwitzer
  • Garrett / Honeywell
  • OEM numbers from Cummins, CAT, Detroit, Volvo, Mack, and Paccar

This makes it easy to replace OEM turbos, reman units and legacy part numbers.

Complete Turbo Installation Support

We donโ€™t just stock turbochargersโ€”we carry all the supporting components you need for a proper install:

Replacing these parts during installation is critical to prevent premature turbo failure, ensure proper lubrication and sealing and maintain warranty compliance.

New vs. Remanufactured Turbochargers

We offer both options to fit your needs:

New Turbochargers

  • Brand-new components
  • Latest revisions and materials
  • Maximum lifespan

Remanufactured Turbochargers

  • Cost-effective alternative
  • Fully rebuilt and tested
  • Ideal for budget-conscious repairs

Both AFA and PAI units are built to meet or exceed OEM specifications.

Why Choose General Truck Parts?

  • Extensive inventory of hard-to-find turbochargers
  • Coverage across all major diesel platforms
  • Competitive pricing on new and reman units
  • Deep expertise in heavy-duty truck components


Turbochargers are essential to modern diesel engine performance, and having the right unitโ€”along with the correct supporting componentsโ€”makes all the difference in reliability and efficiency.

With our expanded lineup from AFA and PAI, General Truck Parts is your go-to source for heavy-duty turbocharger solutions across Cummins, Caterpillar, Detroit Diesel, Mack, Volvo, and Paccar applications. Explore our extensive turbocharger inventory or contact us for a quote today.

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We take pride in getting you your answers, parts, and assemblies fast.

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