Alignment Parts & Accessories

Turn plates and slip plate surfaces wear from repeated vehicle loading, losing smooth action and causing binding during toe adjustment. Rim clamps wear at contact points and can slip, introducing measurement error. Target adaptors and mounting pins wear at threads and pivot points. Sensor cables and connector assemblies are also common wear items on high-volume alignment systems.

Turn plates need replacement when they bind, drag, or require excessive force to rotate during toe adjustment. Surface scoring or deformation from impact also compromises accuracy. A turn plate that does not rotate freely under light load introduces drag that affects toe measurement repeatability. Replace in pairs — replacing one while leaving a worn companion compromises bilateral measurement consistency.

Hofmann alignment heads, targets, and adaptors are specific to Hofmann alignment systems. Turn plates, slip plates, and physical lift accessories may have dimensional overlap with other brands but should be confirmed for fit before ordering. Contact Alamo Equipment with your aligner model number to confirm part compatibility before purchasing alignment accessories.

Yes. Any time sensor-carrying components or target adaptors are replaced, a compensation run should be performed to re-zero the system with the new hardware. Some replacement sensors require a full calibration procedure documented by the manufacturer. Skipping calibration after sensor component replacement introduces systematic error into all subsequent alignment measurements.

Alignment targets are the sensor-carrying or reflective components mounted on the wheel that the aligner system reads to measure wheel angles. Alignment adaptors are the mechanical clamps and arms that attach the targets to the rim. Targets are the measurement elements; adaptors are the mounting hardware. Both must be in good condition for accurate, repeatable alignment readings.

Most alignment system manufacturers recommend full calibration verification at least annually. Calibration should also be performed after any system relocation, significant impact to sensor heads, or replacement of sensor components. A misaligned calibration fixture introduces a systematic offset to every vehicle aligned until the error is identified and corrected with a full calibration procedure.

Yes. Worn turn plates that bind affect toe measurement repeatability — the same vehicle may measure differently on consecutive alignments. Worn rim clamp contact points that slip alter the plane the target measures, introducing toe and camber errors. Alignment comeback rates are one of the clearest indicators that alignment accessories need inspection and replacement.