555 SB3812 — Lower Ball Joint
Overview
Lower ball joint 555 SB3812 connects the steering knuckle to the front lower suspension arm, allowing controlled angular pivoting and vertical movement of the wheel hub assembly. The unit features a forged carbon steel housing protected by a black phosphate coating against rust and corrosion. It incorporates an induction-hardened ball stud with M12x1.25 thread pitch and a 12.6 mm taper diameter. A synthetic chloroprene rubber boot sealed with dual steel retaining rings prevents road grit, dust, and moisture ingress into the internal joint cavity. A heavy-duty polyoxymethylene seat maintains low friction while bearing high load impacts. Part SB3812 replaces OEM cross-references Honda 51220-S04-003, 51220-S04-005, 51220-ST2-003, and 51220-S04-A02.
This component fits the front suspension lower position on Honda CR-V MK1 (RD1, RD2) models built between 1995 and 2001, Honda Civic MK6 (EJ, EK, MA, MB, MC) models built between 1995 and 2001, and Honda HR-V (GH1, GH2, GH3, GH4) models built between 1999 and 2006. Replacement is required upon detecting metallic knocking noises over road bumps, steering wheel binding, or torn rubber dust covers. Excess axial or radial play measured at the ball stud during lever inspection indicates wear of the inner resin seat. Fitting a new ball joint eliminates suspension looseness and restores precise front-end steering response.
555 SB3812 — lower ball joint. 5 offers available, starting from 54.52 USD.
Specifications
Manufacturer — 555. Article number — SB3812. Name — Lower Ball Joint. Offers — 5. From — 54.52 USD.
Compatible cross-references
Replacements and analogues: ACKOJA A700371, FEBEST XFBS0120333, FEBEST XFBS0124333RH, MAXGEAR 724876, RTS 9302516.
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