HPT Turbochargers

Updated May 12, 2026

For the broader diesel-rebuilder tier context that HPT shares with Fleece, BD Diesel, and Industrial Injection, see the Read the cross-engine roundup — covers the documented specialty-tier picks across the heavy-duty diesel install base.

HPT Brand Overview — Specialty-Tier Diesel Rebuilder

HPT (Huron Performance Turbo) is a Auburn, Michigan-based specialty-tier diesel turbocharger rebuilder that designs, assembles, and ships performance turbos across the three highest-volume US heavy-duty diesel platforms. Founded as a rebuild specialist, the brand expanded into new-construction product lines as the diesel performance aftermarket matured through the 2010s.

The brand sits in the same specialty-tier diesel rebuilder market as Fleece Performance, BD Diesel, Industrial Injection, and KC Turbos. Each brand covers slightly different chassis emphasis: HPT covers all three major diesel platforms broadly; Fleece focuses heavily on Cummins; BD Diesel runs broad heavy-duty diesel with strong fleet-OEM partnerships; Industrial Injection focuses on Cummins with deep race-tier coverage; KC Turbos focuses on Powerstroke. The cross-shop is genuinely close on engineering criteria; distributor network and specific Stage availability often determine the buyer\'s pick.

"Duramax LBZ owners have three real choices for a Stage 2 upgrade: HPT, Fleece, or BD Diesel. All three at similar pricing, similar warranty coverage, similar dyno-proven horsepower gains. The decision usually lands on which shop the owner trusts locally for install and ongoing tuning support." — r/Duramax synthesis on the specialty-tier rebuilder cross-shop pattern across the Duramax community.

The Four Stage Product Lines

HPT structures its product catalog into four Stage tiers across each chassis platform. The Stage selection maps to target horsepower band, duty-cycle expectation, and the buyer\'s level of supporting modifications.

Stage 1 (stock-replacement). Direct OEM-spec drop-in replacement for the factory Holset HE351VE / HE300VG (Cummins 6.7L), Garrett GT3782VAS / GT3788LVA (Power Stroke 6.7L), or Garrett VGT (Duramax LB7 through L5P) at $1,500-$2,200. Performance matches factory; service life matches factory; warranty terms match or exceed factory. Right for owners replacing a failed OEM unit who want OEM-grade reliability without paying dealer markup.

Stage 2 (mild-performance upgrade). Stock-replacement form factor with upgraded internals — larger billet compressor wheel, larger turbine wheel within stock turbine housing, ball-bearing center cartridge where the OEM was journal. At $2,200-$3,000. Targets 50-150 horsepower gain over Stage 1 with tuning support; service life slightly shorter than OEM due to higher rotational and thermal stress. Right for owners chasing modest power gains with daily-driver reliability.

Stage 3 (heavy-performance upgrade). Larger frame size than OEM (typically S363, S369, or S480 sizing on Cummins 6.7L; Garrett GT4094 equivalent on Duramax). At $2,800-$4,000. Targets 200-400 horsepower gain over Stage 1 with extensive supporting modifications (fuel system upgrade, intake plumbing, intercooler upgrade, transmission build, ECM tune). Service life 80,000-150,000 miles depending on duty cycle. Right for owners running daily-driver with weekend track or sled-pull use, or work-truck applications targeting strong towing power.

Stage 4 (race-tier). Compound twin-turbo setups, billet wheels across both turbos, S400-series primary frames with smaller atmospheric secondary turbo, water-to-air intercoolers integrated into the kit. At $3,500-$5,500 per setup or $4,500-$7,500 for compound twin builds. Targets 700-1,400 horsepower at the wheels with dedicated race fuel and standalone engine management. Service life 50,000-100,000 miles between rebuilds at race duty cycle. Right for dedicated drag-race or sled-pull competition builds.

Cross-Shop Within the Specialty-Tier Rebuilder Market

HPT competes against four other specialty-tier diesel turbocharger rebuilders with comparable engineering depth and similar pricing across stages.

Fleece Performance (Brownsburg, Indiana). Cummins-focused with the documented Cheetah HX35 build on 1994-2002 Dodge Ram 5.9L applications. Broader Cummins 5.9L coverage than HPT; comparable Cummins 6.7L coverage; lighter Power Stroke coverage. The Read the Fleece Cheetah HX35 review covers the documented Cheetah build that anchors Fleece\'s Cummins reputation.

BD Diesel (Cloverdale, BC, Canada). Broad heavy-duty diesel coverage across Cummins, Duramax, and Power Stroke with strong fleet-OEM partnerships. BD Diesel is the closest cross-shop to HPT on chassis breadth; pricing and engineering depth track closely. Industrial Injection (Salt Lake City, Utah). Cummins-focused with deep race-tier coverage on the 12-valve 5.9L compound build market. Industrial competes with HPT primarily on Cummins-specific Stage 3-4 builds. KC Turbos (Cleburne, Texas). Power Stroke-focused with deep 6.0L and 6.4L coverage. KC competes with HPT primarily on Ford Power Stroke applications.

For the foundational mechanism background underneath every specialty-tier diesel turbo, the Read the mechanism explainer covers the thermodynamic loop and six structural components. For the variable-geometry architecture that HPT product lines augment on Cummins 6.7L and Power Stroke 6.7L applications, the Read the VGT architecture explainer covers the vane mechanism. For the diagnostic decision tree that maps repair work to the right HPT Stage, the Read the four-stage repair decision guide covers Clean / Actuator / Cartridge / Complete cost bands. For OE-replacement aftermarket alternatives below the HPT specialty tier, the Read the cross-engine roundup covers documented picks.

HPT Buying Discipline — Avoiding Common Mistakes

The two most common HPT buying mistakes in the diesel performance community: over-staging without supporting modifications, and ordering from non-authorized distributors. Stage 3 or Stage 4 HPT turbos require matching fuel system upgrades, intake plumbing, transmission build, and ECM tuning to deliver their rated horsepower without engine damage. Bolting a Stage 3 HPT to a stock-fuel-system Cummins 6.7L typically delivers 60% of rated power and accelerates head-gasket failure inside 20,000 miles.

The authorized-distributor question matters because HPT product carries documented serial-number tracking through its authorized-dealer network. Counterfeit HPT units exist in the gray market; buying from eBay or AliExpress at deeply-below-distributor pricing carries the same risk profile as counterfeit BorgWarner EFR or Garrett GTX units. Verify the serial number against HPT\'s authorized-dealer registry before purchasing through any non-authorized channel. The HPT registry is searchable through the company\'s technical library website and matches each serial to its authorized first sale.

For deeper engineering background, the Turbocharger reference covers compressor-and-turbine fundamentals. The Diesel engine reference covers the heavy-duty diesel architecture that specialty-tier rebuilders enhance. The Turbo University reference publishes industrial-tier balance-and-test discipline applicable to specialty-tier rebuilds. The Turbocharger Rebuilding Distribution catalog publishes OE manifest cross-references for the diesel platforms specialty rebuilders serve.

HPT Decision Questions

What does HPT stand for in turbochargers?

HPT stands for Huron Performance Turbo, a specialty-tier diesel turbocharger rebuilder based in Auburn, Michigan. The brand specializes in heavy-duty diesel performance turbos for GM Duramax (LB7, LLY, LBZ, LMM, LML, L5P), Cummins 5.9L (1989-2007) and 6.7L (2007.5-present), and Ford Power Stroke 6.0L (2003-2007), 6.4L (2008-2010), and 6.7L (2011-present). HPT runs both stock-replacement and stage-upgrade product lines on each platform.

Are HPT turbochargers worth the money?

For Duramax and Cummins owners targeting 600-1,200 horsepower at the wheels with documented dyno repeatability, HPT competes well in the specialty-tier diesel performance lane. The cross-shop alternatives — Fleece Performance, BD Diesel, Industrial Injection, KC Turbos — all sit at similar pricing ($2,000-$4,500 depending on stage) with similar engineering depth. The right call depends on distributor network in the buyer's region and the specific Stage tier needed (Stage 1 stock-replacement vs Stage 2/3 mild-performance upgrade vs Stage 4+ race-tier).

What is the difference between HPT and Fleece Performance?

Both are specialty-tier diesel turbocharger rebuilders. HPT (Huron Performance Turbo, Auburn, MI) covers GM Duramax, Cummins, and Ford Power Stroke. Fleece Performance (Brownsburg, IN) covers Cummins and GM Duramax with a stronger emphasis on Cummins 5.9L / 6.7L. HPT runs broader Power Stroke coverage; Fleece runs deeper Cummins-specific catalog with the documented Cheetah HX35 build. Cross-shop is application-specific: Powerstroke owners often lean HPT, Cummins owners often lean Fleece, Duramax owners typically have both available with comparable pricing.

How much do HPT turbos cost?

Stage 1 stock-replacement HPT turbos (Duramax LB7 / LLY / LBZ / LMM, Cummins 6.7L) run $1,500-$2,200. Stage 2 mild-performance upgrade HPT turbos run $2,200-$3,000. Stage 3-4 race-tier HPT turbos (compound builds, 1,000+ horsepower targets) run $3,000-$5,500 depending on configuration. Compound twin-turbo HPT setups for Cummins 5.9L 12-valve builds targeting 1,200-1,400 horsepower run $4,500-$7,500 for the complete twin setup.

Are HPT turbos remanufactured or new?

HPT runs both remanufactured-core and new-construction product lines. The remanufactured-core line takes existing OEM Holset (Cummins) or Garrett (Duramax, Power Stroke) turbocharger cores, refurbishes them with new balance-grade rotating assemblies, upgrades cartridges to ball-bearing where applicable, and ships with documented balance certificates. The new-construction line builds HPT-spec turbos from scratch with HPT-designed wheels and housings sourced from premium casting suppliers. Pricing on remanufactured-core HPT is typically $400-$800 lower than new-construction equivalents.

Where are HPT turbochargers made?

HPT designs and assembles in Auburn, Michigan. The component sourcing splits between US-made (rotating assemblies, balance work, machining) and Asian production partners (housings, gaskets, lower-cost components). The Auburn assembly line runs the final balance, leak-test, and quality-control work that distinguishes the HPT product from generic Asian-import diesel turbos. Country-of-origin labels specify which components are sourced where.

How long do HPT turbos last?

On documented Cummins 6.7L and Duramax LBZ / LMM applications with proper oil-change discipline (every 5,000-7,500 miles), HPT turbos routinely reach 150,000-250,000 miles before requiring rebuild or replacement. Stage 4 race-tier HPT turbos in dedicated drag-racing duty cycles see much shorter service life (50,000-100,000 miles between rebuilds) due to the dramatically higher thermal and rotational stress. The Stage selection matters: Stage 1 stock-replacement HPT lives as long as factory Holset or Garrett; Stage 4 race HPT lives like any other race-tier turbo.