TRW JAR988 Inner Tie Rod Axle Joint Front Axle

The TRW JAR988 is an OE-grade inner tie rod axle joint engineered as a direct replacement for the front steering rack. Manufactured by TRW — a globally recognized leader in automotive safety and chassis systems — this part is built to meet or exceed original equipment specifications for fit, function, and durability.

Key Features:

• OE-Quality Construction: Designed and manufactured to original equipment standards, ensuring a precise, no-modification-required fit
• 2-Seat Design: Spring-free dual-seat ball joint design reduces wear points and extends service life compared to conventional designs
• High-Quality Dust Covers: Long-lasting rubber dust boots keep contaminants, water, and debris out of the ball joint for improved reliability and longevity
• Low-Friction Bearings: Precision plastic bearings optimize steering feel, enhance handling stability, and reduce play
• Pre-Applied Grease: Sealed and pre-greased at the factory — no additional maintenance required
• Rigorous Testing: Every TRW chassis part undergoes four levels of testing and technical review, including endurance testing to 500,000 cycles

Specifications:

• Thread Size 1: M16x1.5
• Thread Size 2: M14x1.5
• Overall Length: 144 mm (5.67 in)
• Axle Joint Length: 128 mm (5.04 in)
• Width: 40 mm (1.57 in)
• Height: 40 mm (1.57 in)
• Fitting Position: Front Axle, Left and Right

OEM & Cross-Reference Part Numbers: 4F0422821, 4F0422821D

The TRW JAR988 inner tie rod is a safety-critical steering component. Replacing worn or damaged inner tie rods restores proper steering response, reduces tire wear, and helps maintain accurate wheel alignment. Sold individually.