Keep your steering tight and predictable with the Mevotech Supreme Suspension Ball Joint MK9389, a front lower ball joint that pivots the control arm and steering knuckle while carrying suspension loads. It drops in as a direct-fit replacement for the 1985-1988 Chevrolet Spectrum, 1989 Geo Spectrum, 1985-1989 Isuzu I-Mark, and 1985-1988 Pontiac Sunburst.
- Labor Saver design: ships with the essential mounting hardware to simplify installation.
- Pre-installed dust boot: helps keep water and debris away from the internal components.
- Protective surface treatment: helps resist corrosion and rust build-up for added longevity.
- Rigorous testing: validated with extensive in-house and third-party durability testing.
Mevotech Supreme parts are engineered in-house with application-specific upgrades and are built for high-usage commercial and passenger vehicles, SUVs, fleets, and working trucks. Worn ball joints often show clunking over bumps, imprecise steering, or uneven tire wear — if a failed front lower joint is the cause, this replaces it. Sold individually; order 2 for a complete front-axle replacement.
Interchange: SB-5222 · 101-3985 · 610.62040
SB5222 · 1013985 · 61062040 · 1602030051 · 19263914 · 250006 · 882200 · BGK9389 · B9389 · B9389PR · FA1662 · K9389 · 94133798 · BJ14024 · IK9389 · GK9389 · 109389 · 10518 · 5051141 · JBJ562 · 104158
This part cross-references / interchanges with the following part numbers:
Frequently Asked Questions
What vehicles does the MK9389 ball joint fit?
It's a direct-fit replacement for the 1985-1988 Chevrolet Spectrum, 1989 Geo Spectrum, 1985-1989 Isuzu I-Mark, and 1985-1988 Pontiac Sunburst. See the Buyer's Guide tab to confirm your vehicle.
What position is this ball joint?
It is a front lower suspension ball joint for the listed applications.
Is mounting hardware included?
Yes. This Mevotech Supreme Labor Saver design includes the essential mounting hardware to simplify installation.
Does it come with a dust boot?
Yes, the dust boot is pre-installed to help keep water and debris away from the internal components.
How many should I order?
Ball joints are sold individually. Order two if you plan to replace the front lower joint on both sides for balanced steering and wear.
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