Delphi TA5378 Steering Idler Arm

Brand Delphi TA5378
Arm Attachment Type Bracket
Grease Fitting Included Yes
Greaseable Yes
Item Grade Standard Replacement
Length 184.0
Pre-Greased Yes
Fits Chrysler, Dodge, and Plymouth · 16 vehicles

OE expertise. Applied to aftermarket steering parts for dependable performance.

Greaseable design. Includes a grease fitting for easier maintenance.

Standard replacement. Built as a direct-fit steering idler arm.

Cross-references MOOG Chassis Products K7066, 3402583 and 3815609 for the same application. See all 4.

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Delphi TA5378 Steering Idler Arm

Delphi TA5378 is a standard replacement steering idler arm built for direct-fit service on select Chrysler and Dodge vehicles. It combines OE-based dimensional analysis with material validation to support proper steering linkage geometry and consistent road feel.

Key Features

  • Standard replacement steering idler arm for steering linkage service
  • Pre-greased for initial installation convenience
  • Greaseable design with grease fitting included
  • Bracket-style arm attachment type
  • Length: 184.0
  • OE-focused compatibility checks for fit and material match

Application Details

Compatible with 1973-1978 Dodge Charger, 1977-1978 Dodge Monaco, 1978-1979 Dodge Magnum, 1979-1981 Chrysler Newport, and 1979-1981 Chrysler New Yorker. Delphi TA5378 is also cross-referenced to MOOG Chassis Products K7066 for the same application.

This steering idler arm is used in the steering linkage to help maintain alignment between the center link and the rest of the front steering system. On vehicles such as the Dodge Charger and Chrysler New Yorker, correct idler arm condition is important for stable steering response and predictable wheel movement.

What It Helps Address

  • Excessive steering play or looseness in the linkage
  • Uneven steering response caused by worn pivot points
  • Front-end wandering related to steering support wear
  • Noisy or unstable steering linkage operation
  • Restoring proper center-link support on classic Chrysler and Dodge platforms

Installation Notes

Verify vehicle application by year, make, and model before installation. Inspect related steering components such as the center link, tie rod ends, and mounting points for wear before replacing the idler arm. The greaseable design allows routine lubrication after installation to support service life.

Quality Assurance

Delphi applies OE engineering practices to its aftermarket steering parts and validates components through dimensional and material analysis. Testing includes exposure to extreme temperatures below -40 degrees C and above 120 degrees C, along with 720 hours of salt spray exposure to evaluate durability in demanding conditions.

This part fits 16 vehicles
Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.
YearMakeModelPositionNotes
1981ChryslerNew YorkerN/A
1981ChryslerNewportN/A
1980ChryslerNew YorkerN/A
1980ChryslerNewportN/A
1979ChryslerNew YorkerN/A
1979ChryslerNewportN/A
1979DodgeMagnumN/A
1978DodgeChargerN/A
1978DodgeMagnumN/A
1978DodgeMonacoN/A
1977DodgeChargerN/A
1977DodgeMonacoN/A
1976DodgeChargerN/A
1975DodgeChargerN/A
1974DodgeChargerN/A
1973DodgeChargerN/A
Directly replaces or cross-references 4 part numbers
Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.
MOOG Chassis Products — K7066340258338156094014147