Delphi TC7088 Suspension Ball Joint - Front Lower

Brand Delphi TC7088
Position Front Lower
Adjustable No
Ball Joint Assembly Yes
Castle Nut Included No
Color Black
Cotter Pin Hole No
Cotter Pin Included No
Distance Between Mounting Holes 41.0
Dust Boot Included Yes
Dust Boot Material Rubber
Grease Fitting Included Yes
Greaseable Yes
Item Grade Standard Replacement
Material SAE1045, 40Cr
Mounting Bolt Head Diameter 18.7
Mounting Bolt Length 40.2
Mounting Bolt Thread Length 30.0
Mounting Bolt Thread Pitch 1.75
Mounting Bolts Included Yes
Mounting Hardware Included Yes
Mounting Hole Quantity 2
Mounting Type Bolt In
Nuts Included Yes
Stud Type Pinch Bolt
Suspension Grade Type Standard
Tapered Stud No
Wrench Size 16.8
Wrench Size 18.7
Fits Asuna, Geo, and Isuzu · 10 vehicles

Standard replacement. OE-style fit and compatibility for dependable service.

Greaseable design. Includes a grease fitting and dust boot for easier maintenance.

OE expertise. Delphi applies dimensional and material analysis to aftermarket steering parts.

Cross-references 8-94466-461-1 for the same application. See all 1.

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Delphi TC7088 Front Lower Ball Joint

Delphi TC7088 is a standard replacement suspension ball joint for the front lower position. It is built with OE-focused materials and testing standards to support precise steering response and consistent suspension articulation on select Geo and Isuzu applications.

  • Front lower suspension ball joint assembly
  • Fits 1990-1993 Geo Storm, front lower
  • Fits 1991-1993 Isuzu Stylus, front lower
  • Fits 1990-1992 Isuzu Impulse, front lower
  • Greaseable design with grease fitting included
  • Dust boot included with rubber boot material
  • Mounting hardware included
  • Bolt-in mounting type with pinch-bolt stud design
  • Standard replacement grade for OE-style service
  • Constructed from SAE1045 and 40Cr materials

OE-Style Construction And Fitment

Delphi TC7088 is engineered for the front lower suspension location on the Geo Storm, Isuzu Stylus, and Isuzu Impulse. The ball joint assembly includes a grease fitting and dust boot, and its bolt-in mounting design supports direct replacement service where the original suspension geometry must be maintained. Delphi applies dimensional and material analysis to help ensure proper OE-to-aftermarket compatibility, and the part is tested across extreme temperature and salt-spray exposure conditions for durability.

This part cross-references Monroe Shocks & Struts (e.g., 172286) for the same application.

Common Problems This Part Can Address

  • Front suspension looseness or play
  • Clunking or knocking from the lower control arm area
  • Uneven tire wear related to worn ball joint movement
  • Steering wander caused by excess joint clearance
  • Binding or rough suspension articulation at the front lower position

Installation Notes And Tips

Verify the front lower position and mounting style before installation. Inspect the control arm, fasteners, and surrounding suspension components for wear or damage, and confirm the pinch-bolt and bolt-in hardware dimensions match the vehicle application. After installation, have the front suspension inspected and aligned according to manufacturer specifications.

Quality Assurance

Delphi uses OE-based engineering and validation methods for its steering and suspension portfolio. TC7088 is evaluated for temperature resistance, corrosion exposure, and dimensional accuracy to support consistent service life in everyday driving conditions.

This part fits 10 vehicles
Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.
YearMakeModelPositionNotes
1993GeoStormFront Lower—
1993IsuzuStylusFront Lower—
1992GeoStormFront Lower—
1992IsuzuImpulseFront Lower—
1992IsuzuStylusFront Lower—
1991GeoStormFront Lower—
1991IsuzuImpulseFront Lower—
1991IsuzuStylusFront Lower—
1990GeoStormFront Lower—
1990IsuzuImpulseFront Lower—
Directly replaces or cross-references 1 part number
Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.
8-94466-461-1