Ball Joint
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MOOG Ball Joint

Part No. K6509 Warranty Details  

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MOOG Problem Solver products incorporate proven design and engineering features to ensure like new steering, ease of installation and longer life. MOOG is the preferred steering and suspension parts brand of professional technicians and NASCAR Crew Chiefs.

Product Features:
  • Problem Solver® powdered metal gusher bearing design enables grease to flow through the bearing to the stud for reduced friction and enhanced strength and stability.
  • Problem Solver® patented cover plate design allows for tighter tolerances vs traditional cover plate designs, providing a more durable and extended life part.
  • Exclusive cover plate protects against contaminants leaking into the bearing surface.
  • MOOG® engineered steel composition results in a stronger component. Full ball metal stud provides 360 degrees of smooth, consistent, rotational movement resulting in more responsive steering.
  • An enlarged ball joint receptacle in the lower control arm can cause a loose ball joint fit. MOOG® Problem Solver® design includes an oversized housing for a more secure fit.
  • Greaseable socket design allows new lubricant to flush contaminants from the assembly, reducing corrosion and wear.
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Arm & Joint:No
Ball Joint Only:Yes
Dust Seal:Yes
Mounting Type:Press-In
Replaceable Grease:Yes


by PowerReviews
MOOGBall Joint

(based on 1 review)

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Reviewed by 1 customer

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(0 of 4 customers found this review helpful)




from Beaumont, TX

About Me ShopOwner Technician

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3 or more reviews submitted


  • Durable
  • Versatile


  • Careful 2 Sizes

Best Uses

  • Trucks

Comments about MOOG Ball Joint:

Moog has been around decades! Good quality at a great price!

  • Was this a gift?:
  • No

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2 Questions | 2 Answers
Displaying questions 1-2
  • Q:

    My 1998 chevy z71 k1500 has a stamped lower control arm that has a forged end on it. Does it take a 45mm or 47mm ball joint? Is a control arm that is stamped and has a forged end on it still considered stamped?
    Asked on 8/4/2013 by AL from peabody, massachusetts

    1 answer



      The Moog Ball Joint (Part No. K6509) is an exact fit for your 1998 Chevrolet K1500. It includes powdered-metal gusher bearing to allow grease to penetrate bearing surfaces. It takes 47.89mm ball joint. For any further assistance, please feel free to call us at: 1-877-238-2623 or visit the nearest Advance Auto Parts store and one of our Parts Pros will gladly assist you with any questions or concerns you may have.

      Answered on 8/5/2013 by Steve from AAP
  • Q:

    I need to replace the ball joints on my truck.
    Moog part # mok6477 45.79 Mm press fit ball joint
    Moog part # mok6509 47.89 Mm press fit ball joint
    They both pop up far replacement on my 1998 Chevy K2500 truck 7.4 l engine. How do I know which one my truck has before tearing it apart?
    Asked on 11/13/2010 by scotchdrnkr from Fenton MO

    1 answer



      mok6509 - Lowered with Forged Arm with the dimension of 47.89 mm Press fit ball joint and mok6477 - Lowered with Stamped Arm with the dimension of 45.79 mm Press fit ball joint. You will have to check your owner’s manual for the exact dimensions.

      Answered on 11/30/2010 by Parts Guru Geo from AAP
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