TNT4R T4 Turbochargers
TNT4R T4 Turbochargers
The True North Turbos TNT4R T4 series is built on the 400 frame — the same frame standard as S400-series turbochargers — so every unit here is a direct bolt-on replacement for an S400-frame T4 turbo. Your manifold, downpipe flange, clamp, compressor discharge, and oil drain all carry over.
Ranging from 67mm to 88mm, the lineup supports strong street power up through 1400–1520HP. Every TNT4R turbo is designed, machined, assembled, and balanced in Canada by Black Sheep Industries.
Replacing a specific model? See the S400 replacement cross-reference for the S467 through S488 mapping.
Shop TNT4R T4 Turbos
- TNT467 67mm T4 — replaces S467. Strong response for street and mild performance builds.
- TNT472 72mm T4 — replaces S472. More airflow headroom for stepped-up power goals.
- TNT476 76mm T4 — replaces S475/S476. A strong middle-ground option for serious street builds.
- TNT480 80mm T4 — replaces S480. Higher airflow capacity for bigger power targets.
- TNT480 80mm T4 Journal Bearing | 1230–1285HP — journal bearing configuration for high-power builds.
- TNT476 76mm T4 Journal Bearing | 1110–1230HP — journal bearing option in the 76mm frame.
- TNT485 85mm T4 1.25 Journal Bearing | 1400–1520HP — replaces S483/S485.
- TNT488 88mm T4 1.25 Journal Bearing | 1400–1520HP — replaces S488. The largest wheel in the T4 lineup.
Ball Bearing vs. Journal Bearing
Standard TNT4R T4 turbos use a ball bearing center cartridge for quick spool-up and strong street manners. The Journal Bearing variants are built for higher-power applications where the additional durability and airflow capacity of a journal bearing center section is the priority.
S400 Buying Guides
- S400 Replacement Cross-Reference: S467 to S488
- S400 Turbo Guide: Sizes, Specs, Flanges and Fitment
- What Size S400 Turbo Do I Need?
- S400 Turbo Flange Guide
- S400 Turbo Oil Drain Guide
- S400 Turbine Housing and A/R Guide
- S400 for Cummins · Duramax · Power Stroke
Frequently Asked Questions
Are TNT4R T4 turbos a direct replacement for an S400?
Yes. TNT4R turbos are built on the 400 frame, so the manifold, downpipe flange, clamp, compressor discharge and oil drain from an existing S400-frame T4 installation all carry over. Match the compressor size and it bolts into the same place.
What is the TNT4R T4 turbo series?
TNT4R T4 is True North Turbos' 400-frame T4 turbo lineup, ranging from 67mm to 88mm wheel sizes, built for import, domestic, and diesel performance applications up to 1400–1520HP.
What's the difference between the standard and Journal Bearing TNT4R T4 turbos?
Standard versions use a ball bearing center cartridge for quick spool. Journal Bearing versions are built for higher horsepower applications requiring additional durability and airflow capacity.
Are TNT4R T4 turbos built in Canada?
Yes. Every TNT4R turbo is designed, machined, assembled, and balanced in Canada by Black Sheep Industries.
Power ratings are quoted in crank horsepower (HP). Figures previously published in wheel horsepower (WHP) have been restated using our in-house tested conversion — the hardware and its capability are unchanged.
BorgWarner and S400 are trademarks of BorgWarner Inc. Black Sheep Industries Inc. and True North Turbos are not affiliated with or endorsed by BorgWarner Inc. Model designations are used for identification and fitment reference only.
True North Turbos TNT4R T4 Turbochargers
Engineered with cutting-edge technology and precision craftsmanship, this revolutionary collection of turbochargers delivers unparalleled reliability and jaw-dropping power on both 6-cylinder and 8-cylinder engines. Whether you’re building a high-performance street machine, an all-out drag car, or a diesel powerhouse, the TNT4R Series is designed to exceed your expectations and push your engine to its limits.
These turbochargers are capable of producing anywhere from 700 horsepower to an astonishing 3,000+ horsepower in twin 8-cylinder applications, depending on the engine combination, build quality, and potential. Whether you’re running a single-turbo setup for street performance or a twin-turbo configuration for a track-dominating build, the TNT4R Series is designed to deliver explosive power and precision at every level. With advanced engineering and a focus on durability, these turbos offer consistent performance under the most demanding conditions, making them a reliable choice for serious enthusiasts and professionals.
The TNT4R Series isn’t just about raw power; it’s about versatility too. Whether you’re working with high-revving imports, torque-heavy diesel trucks, or big-power domestic engines, these turbochargers are designed to adapt to a wide range of applications. Diesel owners in particular will appreciate the TNT4R’s ability to dramatically enhance towing capabilities, off-road performance, or racing dominance, making it a favorite among Cummins, Duramax, and Powerstroke enthusiasts.
Upgrading to the TNT4R Series turbochargers unlocks your engine’s hidden potential, delivering faster acceleration, sharper throttle response, and a broader power band. From high-performance imports to heavy-duty diesels, the TNT4R Series is built to perform at the highest level, ensuring you stay ahead of the competition. With a proven track record of reliability and unmatched power, these turbos are a game-changer for anyone looking to elevate their engine’s performance to new heights.
Don’t settle for ordinary—experience the extraordinary with the TNT4R Turbocharger Series. Shop now to take your engine build to the next level and unleash the beast within. Whether you’re dominating the drag strip, conquering the off-road trails, or turning heads on the street, the TNT4R Series is your ticket to explosive power, unmatched performance, and lasting reliability. It’s time to redefine what’s possible and leave your competition in the dust.