Genuine Mazda Full Suspension Alignment Bolt Kit – 8-Piece Vehicle Set • G-NA0-5-002

Genuine Mazda Full Suspension Alignment Bolt Kit – 8-Piece Vehicle Set

Complete Genuine Mazda suspension alignment bolt kit for all Mazda MX-5 Mk1 NA, Mk2 NB and Mk2.5 NB-FL models produced from 1990 to 2005.

The eccentric alignment bolts secure the lower suspension arms to the front and rear subframes. Rotating each bolt and cam plate changes the position of the wishbone mounting point, allowing the vehicle’s camber, caster and rear toe settings to be adjusted.

Eight alignment assemblies are used across the complete vehicle, with two fitted at each corner. This full kit contains all eight bolts, eight eccentric cam plates and eight self-locking nuts required to replace every lower-wishbone alignment adjuster.

The original fasteners are exposed beneath the vehicle and commonly seize into the suspension-arm bushes through corrosion. Seized, stretched or damaged adjusters can prevent accurate wheel alignment and may need to be cut out during suspension dismantling.

The supplied hardware uses the later Mk2/NB-style design but also fits all Mk1/NA models. The later design provides a stronger replacement for the earlier NA hardware and is less prone to stretching during tightening or alignment adjustment.

SKU clarification: G-NA0-5-002 is MazSpec’s bundle SKU for the complete eight-position kit. It is not an individual Mazda OE part number.

• Part type: Full suspension alignment bolt kit
• Application: Front and rear lower-wishbone alignment points
• Adjustments controlled: Front camber and caster; rear camber and toe
• Alignment positions per vehicle: 8
• Quantity of bolts supplied: 8
• Quantity of eccentric cam plates supplied: 8
• Quantity of self-locking nuts supplied: 8
• Total individual components supplied: 24
• Hardware design: Later strengthened Mk2/NB specification
• Suitable as an NA upgrade: Yes
• Suspension arms included: No
• Suspension bushes included: No
• Subframes included: No
• Brand: Genuine Mazda components
• MazSpec bundle SKU: G-NA0-5-002
• Associated Mazda single-set reference: NAY9-28-6AZ
• MX-5 fitment: Mk1 NA, Mk2 NB and Mk2.5 NB-FL

Kit contents:

• 8 x Genuine Mazda eccentric alignment bolts
• 8 x Genuine Mazda alignment cam plates
• 8 x Genuine Mazda self-locking nuts

Typical reasons for replacement:

• Alignment bolts seized inside suspension-arm bushes
• Cam plates heavily corroded or distorted
• Bolt threads damaged during removal
• Original bolts stretched or bent
• Nuts seized or no longer suitable for reuse
• Suspension-arm or bush replacement
• Front or rear subframe refurbishment
• Wheel alignment cannot be adjusted correctly
• Complete chassis restoration
• Upgrade from earlier Mk1 alignment hardware

Position information: Two alignment assemblies are fitted at each corner of the vehicle. The front lower wishbones use the eccentric hardware to control camber and caster, while the rear lower suspension arms use the hardware to control camber and toe.

Fitment advice: This full kit fits the original Mazda lower-wishbone and subframe arrangement used across Mk1 NA, Mk2 NB and Mk2.5 NB-FL models. Confirm compatibility where aftermarket suspension arms, alternative subframes or modified alignment systems have been installed.

Replacement advice: Do not loosen or remove alignment hardware without first recording the existing cam-plate positions. These marks are only a temporary reference; the vehicle still requires a professional four-wheel alignment after installation.

Seized-bolt warning: Corrosion can bond the bolt shank to the steel sleeve inside the suspension-arm bush. In severe cases, the bolt must be cut on both sides of the bush and the affected bush or complete suspension arm replaced.

Other items to consider: Inspect every lower-wishbone bush, ball joint, suspension arm, subframe mounting point and alignment-bolt aperture. Consider purchasing replacement suspension bushes or complete arms where the original bolt is seized into the bush sleeve.

Useful tools / consumables: Vehicle lift or heavy-duty axle stands, socket and spanner set, calibrated torque wrench, penetrating fluid, wire brush, reciprocating saw or cutting equipment for seized bolts, anti-corrosion compound and professional four-wheel alignment equipment.

Difficulty guide: DIY Difficulty: Advanced. Straightforward fasteners can be replaced with normal workshop tools, but seized bolts may require cutting and suspension-bush replacement. Correct final tightening and a complete geometry adjustment are essential.

Why Genuine Mazda? Genuine Mazda alignment hardware matches the original eccentric profile, bolt diameter, shank length, thread, cam-plate geometry and subframe mounting arrangement. Accurate component geometry is essential for maintaining the required adjustment range and securely clamping the suspension arms.

What’s in the box: Eight Genuine Mazda alignment bolts, eight eccentric cam plates and eight self-locking nuts, providing one complete full-vehicle suspension alignment hardware kit.

Installation notes: Raise and support the vehicle safely before working on the suspension. Record the position and orientation of every eccentric cam before loosening the original hardware. Support each suspension arm before removing its mounting bolt. Where a bolt is seized into the bush sleeve, use controlled cutting methods without damaging the subframe or suspension arm. Clean and inspect every mounting aperture before installing the new hardware. Fit each bolt and cam plate in the original orientation, but do not rely on the previous cam position as the final setting. Tighten suspension-arm fasteners at the ride-height position specified by Mazda to avoid preloading the rubber bushes. Arrange a complete four-wheel geometry adjustment immediately after installation.