V-Twin Replica Knucklehead 28-Degree Rake Frame for 1938-1940 Harley-Davidson EL

Replica Knucklehead frame is a reproduction of the factory style frame.

The V-Twin Replica Knucklehead 28-Degree Rake Frame is designed for custom restoration and replacement applications on 1938, 1939, and 1940 Harley-Davidson EL models. This frame assembly includes the seat post, brake cross shaft, rear axle assembly, transmission plate, and pre-installed motor alignment plate to support safer handling during shipping and simplify installation. The frame also features installed cross shaft bushings, the correct tool box mount, and grease fittings.

Forged components are used throughout the construction for added structural integrity, including the neck, front and rear motor mounts, seat yoke, sidecar loops, and rear axle plates. The round tool box pads are positioned to accommodate a rectangular tool box, providing compatibility with selected accessory options. For Knucklehead applications, clamp-on coil bracket kit 49-0099 is required. Some parts may require slight reaming or filing of mounting holes during assembly to achieve the proper fit.

Important: The seat post and cross shaft bushings may require additional reaming for correct fitment. Because of this fitment requirement, frames are not accepted for return authorization. In lieu of a serial number stamped on the replica frame, V-Twin MFG provides a bill of sale referencing the part number. Shipping carriers may classify this frame as oversized based on packaging, which can affect shipping charges. Always verify application details and compare mounting points before beginning installation.

Fitment: 1938 Harley-Davidson EL, 1939 Harley-Davidson EL, and 1940 Harley-Davidson EL.

Features:

• Application: Replica Knucklehead frame for 1938-1940 Harley-Davidson EL models
• Construction: Forged neck, front and rear motor mounts, seat yoke, sidecar loops, and rear axle plates
• Included Components: Seat post, brake cross shaft, rear axle assembly, transmission plate, and motor alignment plate
• Installation: Cross shaft bushings, grease fittings, and correct tool box mount pre-installed
• Tool Box Mounting: Round tool box pads positioned for a rectangular tool box
• Fitment Note: Seat post and cross shaft bushings may require additional reaming
• Technical Note: Clamp-on coil bracket kit 49-0099 is required for Knucklehead applications
• Documentation: Bill of sale references the part number in lieu of a stamped serial number
• Accessory Items: 50-1535 - Rectangular Black Tool Box, 42-5025 - Replica Engine Skid Plate, 50-1139 - Rectangle Raw Tool Box

Fitment
Harley Davidson EL 1938
Harley Davidson EL 1939
Harley Davidson EL 1940