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Drivetrain› Automatic Transmissions and Components
Trans Go Performance
E40D, 4R100 Reprogramming Kit (Tugger)
SKU: T09L 4R100-HD2
Moderate — 2–4 hours
Overview
This kit also offers adjustments for shift firmness and improves cooling and lubrication through better converter feed and capacity.
Show original supplier description
Part #: 4R100-HD2
The most popular valve body performance kit available for Ford E40D and 4R100 transmissions. The TransGo Tugger Reprogramming Kit prevents downhill clutch burnup and doubles low clutch holding pressure in manual first gear for downhill compression braking.
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
| Brand | Trans Go Performance |
| Part Number | T09L 4R100-HD2 |
Videos
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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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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.
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