Genuine Mazda Battery Hold-Down Clamp / Retaining Bracket • NE51-56-031D

Genuine Mazda NE51-56-031D Battery Hold-Down Clamp / Retaining Bracket

Replacement Genuine Mazda battery hold-down clamp for Mazda MX-5 Mk3, Mk3.5 and Mk3.75 NC models from 2006 to 2015 listed in the compatibility table.

The clamp sits across the top of the battery and forms part of the original battery retaining assembly. Together with the two vertical clamp bolts, it holds the battery securely in the engine-bay tray and prevents unwanted movement during acceleration, braking and cornering.

The clamp is fitted in the engine bay over the battery. There is typically one clamp fitted per vehicle. This listing is for one Genuine Mazda battery retaining clamp; the clamp bolts are supplied separately.

Battery clamps are commonly replaced when the original has become corroded, bent, damaged or lost during battery replacement. A loose or incomplete retaining assembly can allow the battery to move, placing strain on the terminals and cables or allowing the battery casing to contact surrounding components.

• Part type: Battery hold-down clamp / retaining bracket
• Primary use: Secures the battery firmly within the original engine-bay battery tray
• Location: Engine-bay battery compartment
• Position: Across the top of the battery
• Quantity per vehicle: 1
• Quantity supplied: 1 battery clamp
• Brand: Genuine Mazda
• Part No.: NE51-56-031D
• Also referenced as: NE5156031D
• Supersedes: NE51-56-031A / NE51-56-031B / NE51-56-031C
• Fitment note: Suitable for the original battery retaining arrangement on confirmed Mazda MX-5 Mk3 NC applications

Fitment advice: This clamp is designed for the original Mazda MX-5 NC battery tray, battery size and retaining-bolt arrangement. For imported, modified or previously repaired cars, matching the original battery dimensions, clamp style and mounting arrangement is recommended.

Other items to consider: When changing this part, you may also want to consider purchasing the two battery clamp bolts, associated nuts or washers, battery tray, battery cover, terminal covers or other corroded battery mounting hardware.

Useful tools / consumables: Socket set, spanners, penetrating fluid, wire brush, protective gloves, eye protection, battery-terminal cleaner and suitable corrosion-protection treatment for the battery tray and retaining hardware.

Difficulty guide: DIY Difficulty: Easy. The clamp is accessible from the engine bay using basic hand tools. Tighten both sides evenly so the battery is held securely without placing excessive pressure on or distorting the battery casing.

Why Genuine Mazda? Genuine Mazda battery fittings are designed to match the original battery dimensions, tray, mounting points and retaining hardware. Correct shape, material specification and mounting alignment help keep the battery securely positioned while maintaining suitable clearance around the terminals and surrounding electrical components.

What’s in the box: One Genuine Mazda battery hold-down clamp / retaining bracket, part number NE51-56-031D.

Installation notes: Switch off the ignition before working around the battery. Position the battery correctly in its tray, place the clamp across the battery in the original orientation and install the two retaining bolts. Tighten each side gradually and evenly until the battery cannot move, taking care not to overtighten the assembly or damage the battery casing.