MAS Chassis IA8747 Steering Idler Arm

Steering Idler Arm for Ford and Lincoln

The MAS Chassis IA8747 steering idler arm is a direct replacement component for select Ford and Lincoln trucks and SUVs. Built from steel with a coated black finish, it is pre-greased and includes the bracket, castle nut, cotter pin, and zerk fitting for serviceable steering support.

Key Features

• Steel construction with a coated black finish
• Pre-greased and greaseable for routine maintenance
• L-shaped design with bracket attachment
• Bracket included with two-hole mounting pattern
• Castle nut, cotter pin, and zerk fitting included
• Standard-grade replacement for steering linkage service
• Part number IA8747 for catalog and fitment reference

Product Details

MAS Chassis IA8747 is a steering idler arm engineered as a replacement for the original steering support component on select Ford F-150, Ford Expedition, Ford F-250, Ford F-150 Heritage, Lincoln Navigator, and Lincoln Blackwood applications. It uses a steel arm with threaded stud connections, a bracket-mounted layout, and a greaseable design to support steering linkage movement. This part cross-references MOOG Chassis Products K8747 for the same application. The IA8747 part number is also useful when matching steering idler arm replacement parts for 1997-2004 Ford and Lincoln vehicles with the specified bracket spacing.

Vehicle Fitment

• Fits 2004 Ford F-150 Heritage, N/A. Includes bracket; bolt holes center to center: 3.43 in.
• Fits 1997-2003 Ford F-150, N/A. Includes bracket; bolt holes center to center: 3.43 in.
• Fits 1997-2002 Ford Expedition, N/A. Includes bracket; bolt holes center to center: 3.43 in.
• Fits 2002 Lincoln Blackwood, N/A. Includes bracket; bolt holes center to center: 3.43 in.
• Fits 1998-2002 Lincoln Navigator, N/A. Includes bracket; bolt holes center to center: 3.43 in.
• Fits 1997-1999 Ford F-250, N/A. Includes bracket; bolt holes center to center: 3.43 in.

What It Helps Address

• Excess steering play caused by a worn idler arm
• Loose or inconsistent steering response in the linkage
• Front-end steering wander on Ford F-150 and Expedition platforms
• Noise or movement from a deteriorated bracket-mounted steering support
• Grease service needs on a maintainable steering linkage component

Installation Notes

Verify bracket hole spacing and steering linkage configuration before installation. This part includes the bracket and uses a grease fitting for service access, so the steering system should be inspected for wear at related components during replacement. Confirm thread sizes and mounting points against the vehicle application before tightening hardware.

Quality Assurance

MAS Chassis states that this steering idler arm is precision-engineered and rigorously tested as a replacement for the original part on the listed vehicles. The steel construction, coated finish, and serviceable grease design support consistent replacement quality for steering system repair.