Dorman 675-234 Exhaust Manifold Hardware Kit

Exhaust Manifold Hardware for Toyota and Lexus

Dorman 675-234 is an exhaust manifold hardware kit built to match the original fasteners used to secure the exhaust manifold to the engine on specified Toyota, Lexus, Scion, and Pontiac applications. It uses steel studs and nuts with a clear zinc finish for dependable service in high-heat exhaust locations.

For drivers searching for exhaust manifold hardware for Toyota Camry, Toyota Tacoma, Lexus RX350, or Toyota 4Runner applications, this OE-style replacement helps restore proper manifold retention with the correct thread sizing and hardware layout. The Dorman 675-234 part number is also a direct reference point when comparing exhaust manifold stud and nut kits for these vehicles.

• Exhaust manifold hardware kit for specified Toyota and Lexus vehicles
• Steel studs and steel nuts with clear zinc coating
• Class 10.9 stud grade for high-performance fastening strength
• M8x1.25 thread size on both stud ends
• Medium thread type on both ends for OE-style fitment
• Designed to match original hardware dimensions and thread lengths
• Part number 675-234 for catalog and fitment lookup

Detailed Product Overview

This exhaust manifold hardware kit is made to replace worn, damaged, or missing manifold fasteners on a wide range of Toyota and Lexus engines. The studs measure 42.24 in length, with 22 mm thread length on one end and 15 mm on the other, and both ends use a 7.8 mm thread diameter with M8x1.25 threads. The hardware is finished in clear zinc to help resist corrosion in exhaust service conditions. Dorman 675-234 cross-references OE part numbers including 90126A0006 and 90126A0007 for the same application.

Common Problems This Hardware Can Address

• Loose exhaust manifold attachment at the cylinder head
• Broken or corroded manifold studs during exhaust service
• Missing or stripped manifold nuts
• Exhaust leaks caused by degraded original fasteners
• Improper manifold clamping after repair work

Installation Notes and Fitment

Compatible With 2002-2022 Toyota Camry, 2003-2022 Toyota 4Runner, 2007-2022 Toyota Sienna, and 2007-2022 Lexus RX350 applications, along with many other listed Toyota, Lexus, Scion, and Pontiac models. Fitment examples include Fits 2007-2022 Lexus ES350, N/A; Fits 2005-2022 Toyota Tacoma, N/A; and Fits 2001-2022 Toyota RAV4, N/A. Verify thread size, stud length, and engine-side hardware requirements before installation. Position is listed as N/A in the fitment data.

Quality Assurance

Dorman manufactures replacement hardware to match original equipment dimensions and material requirements for specified applications. The steel construction, Class 10.9 stud grade, and clear zinc finish support reliable fastening performance in exhaust manifold service.