MAS Chassis IA6366 Steering Idler Arm and Bracket Assembly - Right
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MAS Chassis

MAS Chassis IA6366 Steering Idler Arm and Bracket Assembly - Right

Brand MAS Chassis IA6366
Position Right
Material Steel
Length 156
Color Black
Finish Coated
Pre-Greased Yes
Bracket Stud Thread Diameter 0
Arm Stud Thread Diameter 12
Castle Nut Included Yes
Arm Attachment Type Taper
Bracket Hole Quantity 2
Grease Fitting Included Yes
Shape L shape
Mounting Hole Diameter 12.2
Mounting Hole Diameter 13.2
Bracket Stud Included No
Grade Type Regular
Mounting Hardware Included Yes
Package Contents 1 idler arm; 1 zerk fitting; 1 cotter pin; 2 bolts
Fits Chevrolet and GMC · 32 vehicles

OE-style replacement. Engineered to match original fit and function for steering repair.

Pre-greased design. Ready for initial service with a grease fitting included.

Coated steel construction. Built with a protective finish for the steering linkage assembly.

Cross-references Delphi TA2135, Mevotech Original Grade GK6366T and Mevotech Supreme MK6366T for the same application. See all 11.

$58.47Free shipping
In stock · usually ships same day before 1pm CST
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Order total $58.47
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Free returns within 60 days if it doesn't fit when fitment is verified.
Not what you need? See all Steering Idler Arm and Bracket Assembly options

Steering Idler Arm Assembly

The MAS Chassis IA6366 steering idler arm and bracket assembly is built to match original fit and function for specific Chevrolet Astro and GMC Safari applications. It is a direct replacement style part for restoring steering linkage support and consistent road feel.

  • Steel construction with a coated finish for added surface protection
  • Pre-greased design for initial service readiness
  • Includes a grease fitting, castle nut, cotter pin, and mounting bolts
  • Tapered arm attachment and L-shaped bracket design
  • Fits right-side steering applications on select Chevrolet Astro and GMC Safari models

Fitment Details

Fits 1991-2005 Chevrolet Astro, right. Fits 1990 Chevrolet Astro, right, includes bracket; new design; with 12 mm mounting bolts. Fits 1991-2005 GMC Safari, right. Fits 1990 GMC Safari, right, includes bracket; new design; with 12 mm mounting bolts.

This IA6366 steering idler arm assembly cross-references Delphi TA2135 for the same application.

For Chevrolet Astro and GMC Safari steering repair, IA6366 helps restore the connection between the steering linkage and frame-mounted support point. The coated steel body, pre-greased construction, and included service fittings make it a practical replacement when the original idler arm shows wear, looseness, or binding.

Common Issues This Part Addresses

  • Excessive steering play caused by a worn idler arm
  • Clunking or looseness in the steering linkage
  • Uneven steering response from a fatigued support assembly
  • Grease loss or dry operation at the pivot point

Installation Notes

Verify right-side fitment and bracket style before installation. Confirm mounting hole size and bolt specification against the vehicle application, especially on 1990 models with 12 mm mounting bolts. Inspect related steering components for wear before completing the repair.

Quality Assurance

MAS Chassis engineered this assembly to match the fit, function, and performance of the original part for the listed applications.

Related reading

This part fits 32 vehicles
Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.
YearMakeModelDrive TypePositionNotes
2005ChevroletAstroRWDRightIncludes Bracket
2005GMCSafariRWDRightIncludes Bracket
2004ChevroletAstroRWDRightIncludes Bracket
2004GMCSafariRWDRightIncludes Bracket
2003ChevroletAstroRWDRightIncludes Bracket
2003GMCSafariRWDRightIncludes Bracket
2002ChevroletAstroRWDRightIncludes Bracket
2002GMCSafariRWDRightIncludes Bracket
2001ChevroletAstroRWDRightIncludes Bracket
2001GMCSafariRWDRightIncludes Bracket
2000ChevroletAstroRWDRightIncludes Bracket
2000GMCSafariRWDRightIncludes Bracket
1999ChevroletAstroRWDRightIncludes Bracket
1999GMCSafariRWDRightIncludes Bracket
1998ChevroletAstroRWDRightIncludes Bracket
1998GMCSafariRWDRightIncludes Bracket
1997ChevroletAstroRWDRightIncludes Bracket
1997GMCSafariRWDRightIncludes Bracket
1996ChevroletAstroRWDRightIncludes Bracket
1996GMCSafariRWDRightIncludes Bracket
1995ChevroletAstroRWDRightIncludes Bracket
1995GMCSafariRWDRightIncludes Bracket
1994ChevroletAstroRWDRightIncludes Bracket
1994GMCSafariRWDRightIncludes Bracket
1993ChevroletAstroRWDRightIncludes Bracket
1993GMCSafariRWDRightIncludes Bracket
1992ChevroletAstroRWDRightIncludes Bracket
1992GMCSafariRWDRightIncludes Bracket
1991ChevroletAstroRWDRightIncludes Bracket
1991GMCSafariRWDRightIncludes Bracket
1990ChevroletAstroRWDRightIncludes Bracket; New Design; w/12 mm Mounting Bolts
1990GMCSafariRWDRightIncludes Bracket; New Design; w/12 mm Mounting Bolts
Directly replaces or cross-references 11 part numbers
Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.
Delphi — TA2135Mevotech Original Grade — GK6366TMevotech Supreme — MK6366TMOOG Chassis Products — K6366TSKP — SK6366T45C1098620.6603526056096FA1702EJIA214K-6366