A1 Stage 3 4R100 Transmission (A1-S3-TC-4R100-7.3L) for 1999-2003 Powerstroke 7.3L

$10,500.00

This A1 Transmission build features billet internal components, Gen2 Blue frictions, Kolene steels, and a custom Precision Industries torque converter for maximum strength and smooth power delivery. Available in 2WD or 4WD configurations and backed by a 2-year unlimited mileage warranty against build defects and workmanship.

Core Charge*

Stall Speed

Drivetrain Options

Total: $10,500.00
5 People watching this product now!
Description

Overview

The A1 Stage 3 4R100 transmission is engineered for maximum strength, reliability, and smooth power delivery in high-demand applications.


Built for Strength

Featuring a full suite of billet internal components, including a billet input shaft, billet FWD drum, billet intermediate shaft, and billet OD planet housing, this transmission is designed to handle increased torque while eliminating common factory weak points.


Efficiency and Longevity

A rollerized design further reduces friction and heat for improved efficiency and longevity.


Performance Frictions and Steels

Performance is enhanced with Gen2 Blue friction materials and Kolene steels, delivering superior holding power and heat resistance under load.


Torque Converter and Cooling

A custom Precision Industries torque converter ensures smooth engagement and reliable torque transfer, while the Mag-Hytec transmission pan increases fluid capacity and improves cooling for sustained performance.


A1 Stage 3 4R100 Transmission Features

This A1 Stage 3 4R100 transmission is available in both 2WD and 4WD configurations for performance street, towing, and heavy-duty applications.


Warranty

Each unit is backed by a 2-year unlimited mileage warranty against build defects and workmanship.

Consider this transmission as part of a complete 7.3L Powerstroke performance build.

Additional information
Weight 135 lbs
A1 Stage 3 4R100 Transmission Features

Stage 3 Build

Suitable for 1,000HP+
GPZ clutches/steels with maching for extra clutches
Fully splined FWD drum
New roller clutches and upgraded sprags
New OE solenoid pack
Updated bushings
New molded pistons
New gaskets, seals and o-rings
Custom pump hydraulic modifications
Custom accumulator body
All weak problem prone areas addressed and fixed
Machined center support
OD piston spiral lock
One piece case bushing
New updated center support bearing
New speed sensors
Cooler bypass delete kit
TCC apply converted to non PWM style
New 4×4 pan and filter
Output shaft endplay shimmed
All cases meticulously inspected, cleaned, bead blasted, and painted
All surfaces trued for flatness
Billet cover triple disc dampened torque converter with Allison bearings
Billet input shaft
Billet FWD drum
Billet intermediate shaft
Billet OD planet housing
Rollerized
Custom Precision Industries converter
Gen2 Blue frictions and Kolene steels
Mag Hytec pan
2 year unlimited warranty against build defects and workmanship

Includes

A1 – Billet Cover Triple Disc

Reviews (0)

Reviews

There are no reviews yet.

Be the first to review “A1 Stage 3 4R100 Transmission (A1-S3-TC-4R100-7.3L) for 1999-2003 Powerstroke 7.3L”
About brand
A1 Transmissions of GA Inc. is a performance transmission shop located in Royston, Georgia. The company specializes in custom transmission builds, repairs, diagnostics, and automatic transmission services for trucks and performance vehicles. A1 Transmission operates from 396 Lee St, Royston, GA 30662 and serves customers who need reliable performance and long-term durability. The A1 team brings more than 55 years of combined experience to every build. They handle all work in-house, including custom builds, full rebuilds, valve body upgrades, torque converters, and advanced diagnostics. Each transmission is built to deliver smooth shifts, strong power transfer, and dependable performance. Their builds support everything from daily-driven trucks to high-horsepower applications. Customer satisfaction drives everything A1 Transmission does. The team treats every vehicle with care and attention to detail. Whether you need a simple repair or a full performance build, A1 Transmission delivers the “A1 treatment” through quality workmanship and proven expertise.
Shipping & Delivery