BD DIESEL 1600036 BYPASS TUBE ELIMINATOR KIT FORD 7.3L POWER STROKE 1999–2003 4R100

Product Description

The BD DIESEL 1600036 Bypass Tube Eliminator Kit is a proven reliability upgrade for 1999–2003 Ford 7.3L Power Stroke trucks equipped with the 4R100 automatic transmission. The factory bypass tube design can allow internal oil leakage that reduces effective line pressure, contributing to heat buildup, delayed engagement, and accelerated clutch wear. This kit permanently eliminates that weak point.

BD Diesel 1600036, 4R100 bypass tube eliminator, Ford 7.3 Power Stroke transmission upgrade, 4R100 pressure loss fix, internal transmission leak prevention, BD Diesel 4R100 reliability kit

By removing the factory bypass tube and sealing the circuit correctly, the BD Diesel eliminator kit helps maintain proper hydraulic pressure throughout the transmission. The result is improved oil flow control, more consistent operation, and increased durability—especially important for towing, heavy use, or high-mileage 4R100 transmissions.

Fitment

• 1999 Ford F-250 – 7.3L Power Stroke – 4R100 Automatic
• 1999 Ford F-350 – 7.3L Power Stroke – 4R100 Automatic
• 2000 Ford F-250 – 7.3L Power Stroke – 4R100 Automatic
• 2000 Ford F-350 – 7.3L Power Stroke – 4R100 Automatic
• 2001 Ford F-250 – 7.3L Power Stroke – 4R100 Automatic
• 2001 Ford F-350 – 7.3L Power Stroke – 4R100 Automatic
• 2002 Ford F-250 – 7.3L Power Stroke – 4R100 Automatic
• 2002 Ford F-350 – 7.3L Power Stroke – 4R100 Automatic
• 2003 Ford F-250 – 7.3L Power Stroke – 4R100 Automatic
• 2003 Ford F-350 – 7.3L Power Stroke – 4R100 Automatic

Fitment Note: For 4R100 automatic transmissions only. Not compatible with E4OD or later TorqShift transmissions.

Cross-Reference / Compatible BD DIESEL Products

• BD DIESEL 1062117 BUILD-IT FORD 4R100 STAGE 4 TRANS KIT – 1999–2003 7.3L
• BD DIESEL 1061526 FORD DEEP SUMP TRANSMISSION PAN – 4R100

FAQ

What problem does this kit fix?

It eliminates internal oil leakage caused by the factory bypass tube, helping maintain proper line pressure and reducing heat and wear inside the transmission.

Is this recommended during a rebuild?

Yes. This kit is commonly installed during 4R100 rebuilds to address a known design weakness and improve long-term reliability.

Will this help towing performance?

Maintaining proper hydraulic pressure supports firmer operation and better heat control, which is especially beneficial for towing and heavy-duty use.

Specifications for BD DIESEL PRODUCTS 1600036