Bosal 258-050 Exhaust Nut

Bosal BRExhaust Exhaust Nut for Direct-Fit Repairs

The Bosal BRExhaust Replacement Exhaust Nut, part number 258-050, is a direct-fit copper hex nut for exhaust service and emissions-related repairs. Built for M10x1.5 threads, it is made to restore secure fastening at exhaust connection points with an OE-style fit.

Key Features

• Direct-Fit Exhaust series for straightforward replacement
• Copper construction for durable exhaust hardware service
• Hex nut design for standard wrench engagement
• M10x1.5 thread pitch for confirmed application matching
• BRExhaust Replacement Exhaust Nut, part number 258-050

Product Details

BRExhaust Replacement Exhaust Nut 258-050 is part of Bosal’s direct-fit exhaust hardware line, focused on OE replacement fit and dependable function. This exhaust nut is specified for exhaust repair work where the original fastener needs to be replaced with a correctly threaded, direct-fit component. It is listed for 1990-1994 Mazda 323 applications, including 1992 and 1994 Mazda 323 SOHC models, and 1992-1993 Mazda MX-3 applications between the converter and central silencer. If you are searching for a Mazda 323 exhaust nut or a Mazda MX-3 exhaust hardware replacement, 258-050 matches the confirmed fitment data provided.

Common Repair Uses

• Replacing a damaged or corroded exhaust nut
• Restoring a secure exhaust flange or joint connection
• Addressing exhaust leaks caused by worn fasteners
• Supporting emissions control repairs on listed Mazda applications
• Servicing exhaust hardware on Mazda 323 and Mazda MX-3 models

Installation Notes and Tips

Verify thread size and mating hardware before installation. Use the confirmed M10x1.5 specification and match the vehicle application exactly: Fits 1990-1994 Mazda 323, N/A; Fits 1994 Mazda 323, N/A; Fits 1992 Mazda 323, N/A; Fits 1992-1993 Mazda MX-3, N/A. For best results, clean the threads and inspect the adjoining exhaust components for wear or damage before tightening. Part number 258-050 should be matched to the listed fitment only.

Quality Assurance

Bosal’s BRExhaust direct-fit replacement line is built around OE-style fitment, quality materials, and practical serviceability for exhaust repair. This part cross-references no additional part numbers in the provided data.