Moog 8639B Steering King Pin Set

Moog 8639B Steering King Pin Set

Moog 8639B is a steering king pin set built for front-end service where king pin wear affects steering feel and alignment stability. It includes bushings, washers, and a bearing, with metal bushings and a 7.748-inch king pin length for a direct repair-focused solution.

Key Features

• Steering king pin set for chassis and steering hardware service
• Includes bushings, washers, and bearing
• Metal bushing construction for the service components
• King pin diameter: 1.300 inches
• King pin length: 7.748 inches
• Keyway length: 0.580 inches
• Keyway 2 length: 0.580 inches

Product Details

Moog 8639B is engineered for steering knuckle and front axle king pin repair where precise fit and durable service parts matter. MOOG focuses on design updates that improve part life and make replacement easier, which is why this king pin set is a practical choice for steering rebuild work on Ford truck applications and other listed interchange uses. This part cross-references Anchor 300260 for the same application.

For buyers searching for a Ford truck steering king pin set, front axle king pin replacement, or Moog 8639B steering hardware, this part provides the core components needed for a proper king pin service. It is also referenced by common aftermarket numbers such as 45F0173 and 262-1597.

Common Problems This Part Can Address

• Excessive steering play from worn king pin components
• Loose or unstable front-end steering response
• Uneven tire wear related to front axle wear
• Knuckle movement caused by damaged bushings or bearing surfaces
• Service issues during king pin rebuilds on compatible Ford truck applications

Installation Notes and Tips

Inspect the steering knuckle, axle bore, and related wear surfaces before installation. Measure the existing king pin dimensions and compare them to the listed 1.300-inch diameter and 7.748-inch length to confirm application match. Proper cleaning, alignment, and lubrication during assembly help support correct steering geometry and smoother operation.

Quality Assurance

MOOG is known for chassis and steering components that incorporate design improvements aimed at extending service life and simplifying replacement. Moog 8639B is built as a service part for steering repair work and is backed by the brand’s established chassis engineering focus.