
The Rust Buster RB7104L Under-Cab Frame Repair Kit is a driver-side replacement frame section designed for 1995–2004 Toyota Tacoma Xtra Cab and Double Cab models. Built from heavy-duty 11-gauge steel, this 56.00-inch panel caps the frame rail between the front cab mount and the center crossmember, retaining all factory hole locations. Includes drain holes for corrosion control and ships with an oil-based protective coating. Welding required.
Fits 1995–2004 Toyota Tacoma
Fits Xtra Cab and Double Cab models
Driver-side (left) frame rail repair kit
For passenger side, see RB7104R
Caps the frame rail between the front cab mount and center crossmember
Measures 56.00" in length
Made from heavy-duty 11-gauge steel
Includes drain holes
Retains all factory frame rail holes
Ships with oil protective coating to prevent oxidation
Welding required
Recommended to protect with Rust Buster Rust Converter Paint RB9917
Backed by a Lifetime Warranty
Brand: Rust Buster
Part Number: RB7104L
Product Type: Under-Cab Frame Repair Section (Driver/Left Side)
Material: 11-gauge steel
Length: 56.00"
Installation: Welding required
Coating: Oil-based protective coating
1995–2004 Toyota Tacoma
Fits Xtra Cab and Double Cab configurations
The under-cab region of the Tacoma frame is highly susceptible to rust due to constant exposure to moisture, road debris, and off-road environments. Once corrosion sets in, the structure can fail and affect brake line routing, e-brake components, and exhaust hanger brackets. Rust Buster engineered the RB7104L using advanced scanning and CAD modeling to ensure OE-level contours and precise fitment. This replacement section blends seamlessly with the original frame and restores strength to a critical support area. Backed by Rust Buster’s Lifetime Warranty.