Dorman 23755 Exhaust Flange Stud and Nut - Front

Exhaust flange repair for Ford trucks and vans

Dorman 23755 is an OE FIX exhaust flange stud and nut repair kit for Ford applications where catalytic converter flange studs have rusted, broken, or seized. It provides a faster, hand-tool-based repair for front exhaust flange connections on Ford F-150, F-250, F-350 Super Duty, Expedition, and E-Series vans, without drilling or torch heating.

• OE FIX design for repairing broken exhaust flange stud connections
• Stainless steel brackets and stainless steel nuts for corrosion resistance
• M10-1.50 coarse thread hardware
• Standard replacement grade for front exhaust flange service
• Direct repair solution for Ford truck and van exhaust flange failures

Built for broken catalytic converter flange studs

This Dorman exhaust flange stud and nut assembly is engineered to reconnect the catalytic converter to the exhaust manifold flange when the original studs have failed. The bracket design slides over the broken stud area and uses an integrated threaded stud to secure the converter mounting holes, creating a practical repair path for front exhaust service on Ford F-150, Ford Expedition, Lincoln Navigator, and related E-Series van applications. Part number 23755 is a focused solution for common rust-related exhaust flange damage.

This part cross-references Ford service numbers W705374S901 and W705443S900 for the same application.

What this repair can solve

• Broken or missing catalytic converter flange studs
• Rust-damaged exhaust manifold flange hardware
• Seized exhaust fasteners that are difficult to remove conventionally
• Front exhaust connection leaks caused by failed flange retention
• Time-consuming repairs that would otherwise require drilling or heating

Installation notes and tips

Install using ordinary hand tools after removing the damaged hardware as needed. The bracket should be positioned over the broken stud sections on the manifold flange, with the contoured side seated against the flange and around the broken stud remnants. Then align the threaded end through the catalytic converter mounting holes and secure the connection with the supplied nuts. Verify thread size and flange alignment before final tightening. Part number 23755 is commonly used on front exhaust flange repairs for Ford trucks and vans.

Quality assurance

Dorman designs OE FIX repair parts to address common factory failure points with serviceable replacement hardware and application-specific fitment. This exhaust flange repair kit uses stainless steel components and standard M10-1.50 coarse threads for a durable service repair.