Dorman 611-123 Wheel Lug Nut

Dorman OE FIX Wheel Lug Nut for Astro and Safari

Dorman 611-123 is a direct replacement wheel lug nut built with a one-piece carbon steel construction to address the rust and service issues common to the original two-piece design. It is made for vehicles such as the Chevrolet Astro and GMC Safari with 1/2-20 fine threads and a 60-degree conical seat.

Key Features

• One-piece steel construction for improved durability
• Black dometop capped nut finish
• Clockwise, right-hand thread direction
• Fine thread size: 1/2-20
• 60-degree conical seat for proper wheel mating surface contact
• 13/16 in hex size for standard service tools
• SAE thread specification with regular grade type
• Compatible with wheel applications that require a 1.25 in overall length and dometop capped nut design

Detailed Description

This Dorman 611-123 lug nut is engineered as an OE FIX replacement for select Chevrolet Astro and GMC Safari applications. The one-piece carbon steel design replaces the failure-prone two-piece style found on certain original equipment lug nuts, helping reduce corrosion-related service problems and simplifying future maintenance. The black finish and dometop capped profile provide a clean factory-style appearance while the 60-degree conical seat supports proper wheel-to-lug contact.

This part cross-references Four Seasons 65931 for the same application. It is also referenced against 9985N and 99753 for related fitment needs.

What It Helps Solve

• Rust buildup on original lug nuts
• Separation or failure associated with two-piece lug nut construction
• Difficulty removing damaged or swollen lug nuts during wheel service
• Improper wheel seating caused by worn or mismatched lug nut design
• Replacement needs for 1985-1995 Chevrolet Astro and 1985-1995 GMC Safari wheel service

Installation Notes and Tips

• Verify the wheel mating surface before installation to confirm the 60-degree conical seat is correct for the wheel.
• Confirm thread size, pitch, and right-hand thread direction before tightening.
• Use the proper 13/16 in socket to avoid rounding the hex.
• Inspect adjacent studs and wheel seats for corrosion or damage before installing new lug nuts.
• Fits 1985-1995 Chevrolet Astro, N/A. Fits 1985-1995 GMC Safari, N/A.

Quality Assurance

Dorman OE FIX parts are developed to replace known weak points in original designs with updated construction and service-friendly materials. Part number 611-123 follows that approach with a one-piece steel lug nut built for the specified OE-style application.