Moog K5143 Steering Idler Arm

Overview

The MOOG K5143 steering idler arm is built for classic GM chassis applications that need precise steering support and dependable lubrication. It is a direct-fit chassis component for a wide range of Buick, Chevrolet, Oldsmobile, and Pontiac models, including Buick Skylark, Chevrolet El Camino, and Pontiac GTO applications.

MOOG K5143 includes service-friendly features such as pre-greasing and a grease fitting, helping maintain lubrication at the bearing surfaces. This part cross-references Dorman - OE Solutions 535-660 and Gates 18634 for the same application.

Key Features

• Pre-greased design for easier initial service.
• Grease fitting included for routine lubrication.
• Powdered-metal Gusher bearing design on listed applications to promote grease flow through the bearing surfaces.
• Built for steering linkage service on classic GM passenger cars and coupes.
• MOOG chassis engineering focused on product life and simplified replacement.

Fitment Details

Fits 1964 Buick Skylark, N/A.

Fits 1968-1972 Buick Skylark, N/A.

Fits 1964 Chevrolet El Camino, N/A.

Fits 1968-1972 Chevrolet El Camino, N/A.

Fits 1970-1972 Chevrolet Monte Carlo, N/A.

Fits 1964 Chevrolet Malibu, N/A.

Fits 1964-1972 Oldsmobile Cutlass, N/A.

Fits 1967-1972 Oldsmobile Cutlass Supreme, N/A.

Fits 1964-1970 Pontiac GTO, N/A.

Fits 1972 Pontiac GTO, N/A.

Fits 1964-1972 Pontiac LeMans, N/A.

Fits 1964-1970 Pontiac Tempest, N/A.

Fits 1969-1971 Pontiac Grand Prix, N/A.

Fits 1972 Pontiac Grand Prix, N/A.

Fits 1972 Buick Skylark, N/A.

What It Helps Address

• Excess steering play caused by worn idler arm components.
• Loose or inconsistent steering response in the linkage.
• Lubrication loss at the bearing surfaces.
• Service issues on older steering systems that rely on grease maintenance.

Installation Notes

Verify the mounting hole diameter and overall length against the original part before installation. Confirm the exact vehicle application by year, make, model, and steering linkage configuration, since some listings include notes such as straight arm or specific production dates.

Quality Assurance

MOOG is known for chassis parts that incorporate design improvements aimed at extending service life and simplifying replacement. The K5143 reflects that approach with serviceable lubrication features and application-specific fitment for classic GM steering systems.