Keep your steering linkage tight and your tires tracking straight with the Delphi Steering Idler Arm TL478. The idler arm supports one end of the center link and works opposite the pitman arm to hold the steering linkage in alignment; when it wears, you may notice loose or wandering steering, excess play, and uneven tire wear. It's a direct-fit replacement for the 1993-1994 Chevrolet Blazer, 1993-1999 Chevrolet/GMC C1500 and K1500, 1995-2000 Chevrolet Tahoe and GMC Yukon, 1999-2000 Cadillac Escalade, and many more C/K 1500/2500/3500 pickups and Suburbans — see the Buyer's Guide tab for the full list.
OE-derived engineering: Delphi applies its OE steering expertise to the aftermarket, with parts validated below -40°C and above 120°C and through 720 hours of salt spray, backed by extensive dimensional and material analysis for OE-to-aftermarket compatibility.
Fatigue tested: Delphi idler arms are fatigue tested to help avoid failure.
Precision ball stud: ball studs are machined to micron tolerances for durability and smooth joint operation.
Corrosion protection: anti-corrosion coating applied to each part for corrosion prevention and enhanced appearance.
Complete job: includes the necessary accessories to complete the job.
It supports one end of the center link and works opposite the pitman arm to keep the steering linkage aligned, helping maintain proper steering geometry and tire tracking.
What are signs my idler arm may need replacing?
Loose or wandering steering, excessive play in the linkage, and uneven tire wear can be signs of a worn idler arm. Diagnose the cause before replacing.
Will this Delphi TL478 fit my vehicle?
It fits applications such as the 1993-1999 Chevrolet/GMC C1500 and K1500, 1995-2000 Tahoe and Yukon, and 1999-2000 Escalade. Check the Buyer's Guide tab to confirm your vehicle.
Does it include mounting accessories?
Delphi states it includes the necessary accessories to complete the job. Consult the vehicle service information for the correct fasteners and whether any may be reused.
Is the Delphi idler arm tested for durability?
Yes. Delphi fatigue tests its idler arms to help avoid failure and validates parts below -40°C, above 120°C, and through 720 hours of salt spray.
Steering Idler ArmDelphi's OE safety technology is fitted to millions of vehicles worldwide and we apply Delphi's OE expertise to our aftermarket steering portfolio. Delphi tests to the extreme for...
Steering Idler ArmDelphi's OE safety technology is fitted to millions of vehicles worldwide and we apply Delphi's OE expertise to our aftermarket steering portfolio. Delphi tests to the extreme for...
WARNING:
These products can expose you to chemicals including lead and phthalates, which are known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to
www.P65Warnings.ca.gov.
