Genuine Mazda Rear Brake Disc Dust Shield / Backing Plate – MX-5 NA 1.6 • NA01-26-261A

Genuine Mazda NA01-26-261A Rear Brake Disc Dust Shield / Backing Plate

Replacement Genuine Mazda rear brake disc dust shield for Mazda MX-5 Mk1 NA 1.6 models from 1990 to 1998.

This pressed-steel shield is fitted behind the rear brake disc and wheel hub. It helps protect the brake disc, caliper and surrounding hub components from stones, dirt, road debris and direct water spray.

The shield also provides separation between the rotating brake disc and the surrounding suspension and hub components. Correct shape and positioning are important to maintain adequate clearance and prevent scraping or rubbing noises.

Rear brake shields are continuously exposed to moisture, road salt, debris and repeated brake-temperature cycles. Over time, corrosion can weaken the outer edge or centre mounting area, allowing the shield to distort, loosen or contact the rotating brake disc.

The same component fits either the left- or right-hand rear side. There are two shields fitted per vehicle, and this listing supplies one Genuine Mazda shield. Select a quantity of two when replacing both sides.

Important engine and brake restriction: This shield is intended for Mazda MX-5 Mk1 NA 1.6 models. The later 1.8-litre rear brake arrangement uses a different dust shield and is not included in this listing.

• Part type: Rear brake disc dust shield / backing plate
• Mazda catalogue description: Cover, Dust
• Primary use: Protects the rear brake and hub components from road debris and water spray
• Location: Behind the rear brake disc and wheel hub
• Position: Left- or right-hand rear
• Handed component: No
• Quantity fitted per vehicle: 2
• Quantity supplied: 1 dust shield
• Brake disc included: No
• Wheel hub or bearing included: No
• Mounting hardware included: No
• Brand: Genuine Mazda
• Part No.: NA01-26-261A
• Earlier Mazda reference: NA01-26-261
• Also referenced as: NA0126261A / NA0126261
• MX-5 fitment: Mk1 NA 1.6 models

Possible reasons for replacement:

• Heavy corrosion or perforation
• Outer edge rubbing against the brake disc
• Scraping or rattling from a rear wheel
• Shield bent during previous brake or hub work
• Centre mounting area weakened by corrosion
• Damage during wheel-bearing or hub removal
• Restoration of the rear brake and hub assembly

Fitment advice: Confirm that the vehicle is a Mk1 NA fitted with the 1.6-litre engine and corresponding original rear brake arrangement. Do not select this shield for an NA 1.8 solely because the external shape appears similar.

Other items to consider: Inspect the shield on the opposite side, rear brake discs, pads, calipers, wheel bearings, hubs, bearing seals and retaining hardware. Replace any component that is heavily corroded, damaged or unsuitable for reuse.

Useful tools / consumables: Suitable socket and spanner set, breaker bar, hub puller, hydraulic press or appropriate bearing equipment, circlip pliers, calibrated torque wrench, penetrating fluid, brake cleaner and corrosion protection for exposed surrounding metal.

Difficulty guide: DIY Difficulty: Advanced. The rear brake caliper and disc must be removed, and the wheel-hub and bearing assembly must normally be dismantled to access the shield. Suitable pressing and bearing-support equipment may be required.

Why Genuine Mazda? Genuine Mazda brake dust shields are pressed to match the original hub centre, brake-disc clearance and rear-upright mounting arrangement. Correct dimensions help prevent contact with the rotating disc and maintain compatibility with the factory Mk1 1.6 rear brake assembly.

What’s in the box: One Genuine Mazda rear brake disc dust shield / backing plate, part number NA01-26-261A.

Installation notes: Raise and support the vehicle safely, then remove the applicable rear brake caliper, disc and hub assembly in accordance with the Mazda workshop procedure. Remove the original shield and clean the rear-upright mounting area thoroughly. Fit the replacement shield in the correct orientation and confirm that it sits squarely without distortion. Reinstall the hub and bearing using suitable equipment, replace any single-use retaining components and tighten all hardware to the applicable Mazda specifications. Rotate the hub and disc before refitting the wheel to confirm that the shield does not contact the disc.