Drivetrain› Automatic Transmissions and Components

Diamond T

Triple Disk Torque Converter

$990.00

SKU: FT99GSD

Special Order
Special Order
Ships in 4–6 weeks
Free Shipping over $200
$100 Minimum Order
30 Days Return
INSTALL DIFFICULTY
DIY PRO SHOP

Moderate — 2–4 hours

Overview

The Diamond T FT99GSD is a triple disk torque converter designed for 1999-2003 Ford F-250 and F-350 trucks with a 5.4L gas engine and a 4R100 transmission. It features a 4-stud billet cover and a heavy-duty design for enhanced strength. This torque converter is built in the USA with high-grade components and comes with a lifetime non-transferable warranty.
Show original supplier description
The Diamond T FT99GSD torque converter is a high-performance upgrade specifically engineered for 1999-2003 Ford F-250 and F-350 models equipped with the 5.4L gas engine and the 4R100 transmission. This triple-disk converter features a robust 4-stud billet cover and a heavy-duty design, aimed at improving acceleration, pulling power, and overall vehicle efficiency. Diamond T Enterprises emphasizes quality and durability in their torque converters. Each unit is built in the USA using the highest grade components. Unlike mass-produced remanufactured converters, Diamond T technicians maintain the original parts together as a matched set to ensure superior quality. They meticulously inspect all parts, replacing any marginal ones, and verify housing thickness against OEM specifications, replacing thin housings with new ones to prevent premature failure. The converters are precision balanced using computerized equipment and utilize only the best clutch materials. To prevent internal rust before installation, they are pre-charged with transmission fluid, and each unit undergoes quality testing before shipment. This torque converter is backed by a Lifetime Non-Transferable Warranty against defects in material and workmanship under normal and proper use. However, the warranty is void if the product experiences improper installation, accidents, neglect, misuse, or dismantling/alteration by the customer or a third party. A core charge applies to this purchase, and the customer is responsible for the return shipping costs of the core.

Product descriptions are provided by our supplier partners and may not always be perfectly accurate. Not sure this fits? or call (760) 282-4645 and we’ll verify before you order.

Fitment

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Specifications

BrandDiamond T
Part NumberFT99GSD
CategoryDrivetrain

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Returns & Fitment

Built for enthusiasts. Every order is backed by our 30 day return window on eligible items. Unused and uninstalled products may be returned with approved RMA and no restocking fees when received in new condition. Orders placed through the MOTORMIA app with a complete build qualify for our Fitment Guarantee — free return shipping if the part doesn’t fit your exact setup. The guarantee covers fit only; installation must follow manufacturer instructions, and we recommend a qualified shop for parts marked Difficulty 4–5.

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Shipping

Orders are processed in 1–3 business days. In stock parts ship promptly from our partner network. Special-order items either aren’t currently stocked or are built to your spec — expect 4–6 weeks. If a part goes on backorder while your order is in the queue, we’ll reach out and work through discounted alternatives together.

Free shipping over $200 in the continental US. Alaska, Hawaii, U.S. territories (Puerto Rico, U.S. Virgin Islands, Guam, American Samoa, and the Northern Mariana Islands), and international orders carry surcharges — most appear at checkout. Some exceptions (LTL freight, or suppliers who quote freight only after we place the order) won’t. In those cases we’ll reach out with the exact charge before your order moves forward.

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