A1 Stage 3 5R110 Transmission (A1-6.0L-S3-5R110-TC) for 2003-2007 Powerstroke 6.0L

Name: A1 Stage 3 5R110 Transmission (A1-6.0L-S3-5R110-TC) for 2003-2007 Powerstroke 6.0L
Brand: A1 Transmissions
SKU: A1-6.0L-S3-5R110-TC
Availability: InStock

$12,600.00

The A1 Transmission Stage 3 Build for the 5R110 (2003–2010 Ford F-250/F-350) is engineered to support 1,000+ horsepower with the strength and reliability required for extreme use. It includes all Stage 1 and Stage 2 upgrades, along with a billet output hub, upgraded MTS solenoids, and an A1-spec billet cover triple disc torque converter for improved torque handling and precise shifting. Built for high-performance street, towing, and competition applications, this transmission is available for 2WD and 4WD configurations and is backed by a 2-year unlimited mileage warranty against workmanship and build defects.

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Description

Transmission Build Overview

The A1 Stage 3 5R110 transmission is built for extreme horsepower applications where strength, reliability, and consistency matter most. Designed for 2003–2007 Powerstroke 6.0L trucks, this Stage 3 build supports applications producing 1,000 horsepower or more. It includes all Stage 1 and Stage 2 upgrades, along with additional billet and performance components to manage high torque and demanding use.

Internal Upgrades and Shift Control

This build features a billet output hub to increase strength under load. In addition, upgraded MTS solenoids improve shift accuracy and hydraulic control. Together, these upgrades help deliver consistent operation in high-performance and heavy-duty conditions.

Torque Converter and Power Delivery

A1 pairs this transmission with an A1-spec billet cover triple disc torque converter. This converter improves torque transfer and durability, especially under sustained load. As a result, the transmission performs well in high-performance street trucks, towing applications, and competition use.

Configurations and Warranty

Each transmission is built with attention to detail and backed by a 2-year unlimited mileage warranty covering build defects and workmanship. The A1 Stage 3 5R110 transmission is available in both 2WD and 4WD configurations to match a wide range of Super Duty builds.

Applications

Built by A1 Transmission Company, the Stage 3 5R110 transmission delivers confident power delivery and dependable operation. It serves as a proven solution for serious Ford Super Duty performance builds.

This transmission pairs well with 6.0L Powerstroke performance upgrades.

Additional information

Weight	135 lbs
Features	Stage 3 Build Suitable for 1,000+ HP GPZ clutches/new steels with extra frictions Custom pump hydraulics Sonnax solenoid body Updated snap rings Updated bushings Updated sealing rings New molded pistons New gaskets, seals, o-rings New internal harness Updated output hub 6.4 4X4 pan and filter Suitable for 800HP Billet input shaft Billet intermediate shaft Billet OD planet Torq kit Custom Precision industries converter Cast aluminum pan Billet cover triple disc torque converter Billet output hub MTS solenoids 2 year unlimited mile warranty against build defects/workmanship
Included	A1 – Billet Cover Triple Disc Converter

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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

SKU: A1-6.0L-S3-5R110-TC Categories: All Products, Drivetrain, Powerstroke, Powerstroke: 2003-2007 (6.0L) Brand: A1 Transmissions