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Delphi TC4312 Suspension Ball Joint - Front Lower
| Brand | Delphi TC4312 |
|---|---|
| Position | Front Lower |
| Maximum Outside Diameter | 1.890 |
| Maximum Outside Diameter | 48.00 |
| 10667 | No |
| Thread Direction | Counterclockwise (left) |
| Reinforced | No |
| Pre-Greased | Yes |
| Castle Nut Included | No |
| Grease Fitting Included | No |
| Suspension Grade Type | Standard replacement |
| Bushings Included | No |
| Dust Boot Included | Yes |
| Ball Joint Assembly | Yes |
| Type | Standard |
| Cotter Pin Included | No |
| Cotter Pin Hole | No |
| Mounting Hardware Included | Yes |
| Washers Included | No |
| Grade Type | Standard replacement |
| Adjustable | No |
| Bearing Type | Plastic |
| Greaseable | No |
| Stud Thread Length | 0.886 |
| Stud Thread Length | 22.50 |
| Steering Type | Power |
| Stud Type | Threaded |
| Mounting Type | Press-in |
| Dust Boot Material | Rubber |
| Mounting Bolts Included | No |
| Mount Plate Included | No |
| Tapered Stud | Yes |
| Fits | Acura · 5 vehicles |
OE expertise. Delphi applies original-equipment know-how to its aftermarket steering parts.
Extreme-condition tested. Built to handle subzero cold, high heat, and 720 hours of salt spray.
Front lower fit. Standard replacement ball joint with press-in mounting and included hardware.
Cross-references Dorman - Premium B9441PR, Mevotech Supreme MK9441 and Suspensia X42BJ3725 for the same application. See all 11.
Front Lower Ball Joint for Acura Legend
Restore precise front suspension movement with this Delphi suspension ball joint, part number TC4312. It is a standard replacement front lower ball joint for 1986-1990 Acura Legend models and is built with OE-focused dimensional and material analysis for proper fit and consistent operation.
Key Features
- Fits 1986-1990 Acura Legend, front lower
- Delphi TC4312 suspension ball joint
- Press-in mounting type with included mounting hardware
- Pre-greased, non-greaseable design
- Dust boot included with rubber boot material
- Standard replacement grade for power steering applications
- Counterclockwise (left) thread direction
- Tapered stud with threaded stud type
Detailed Description
Delphi TC4312 is a front lower suspension ball joint for the Acura Legend, covering 1986, 1987, 1988, 1989, and 1990 model years. It uses a press-in mounting design and a pre-greased, sealed construction with a plastic bearing type and rubber dust boot to support smooth suspension articulation. Delphi applies OE-based engineering and extensive dimensional and material checks to help maintain correct interface and fitment for the original suspension layout. This part cross-references Dorman Premium B9441PR for the same application.
Common Repair Symptoms
- Front-end clunking or popping over bumps
- Excessive play in the lower suspension joint
- Uneven tire wear from worn steering and suspension geometry
- Loose or imprecise front suspension response
- Visible boot damage or joint contamination
Installation Notes
Fits 1986-1990 Acura Legend, front lower. Confirm press-in service requirements before installation and verify the left-hand thread direction, tapered stud dimensions, and mounting style against the original part. Because this ball joint is pre-greased and not greaseable, no routine lubrication fitting is used. Replace worn related suspension components as needed to help preserve alignment and steering feel.
Quality Assurance
Delphi subjects its OE-style steering and suspension components to temperature extremes below -40 degrees C and above 120 degrees C, along with extended salt-spray exposure testing. TC4312 is backed by Delphi’s OE-focused manufacturing standards for aftermarket suspension service.
| Year | Make | Model | Position | Notes |
|---|---|---|---|---|
| 1990 | Acura | Legend | Front Lower | — |
| 1989 | Acura | Legend | Front Lower | — |
| 1988 | Acura | Legend | Front Lower | — |
| 1987 | Acura | Legend | Front Lower | — |
| 1986 | Acura | Legend | Front Lower | — |
| No rows match your filter. | ||||