Genuine Mazda Rear Upper Trailing Link Arm – LH • NE51-28-D10B

Genuine Mazda Rear Upper Trailing Link Arm – Left Hand

Replacement Genuine Mazda left-hand rear upper trailing link arm for all Mazda MX-5 Mk3, Mk3.5 and Mk3.75 NC models fitted with 1.8- or 2.0-litre petrol engines.

This suspension arm is installed on the left-hand side of the rear suspension. It connects to the highest forward mounting point of the rear hub carrier, ahead of the rear shock absorber, and attaches the hub-carrier assembly to the rear subframe.

Mazda identifies the component as the left-hand trailing link within the rear lower-arm and subframe assembly. It helps control the fore-and-aft position of the rear wheel and maintain the intended suspension geometry as the wheel moves through its travel.

The arm is supplied with its integral bushes. These bushes allow controlled suspension movement while helping isolate road noise and vibration from the vehicle body.

One left-hand arm is fitted per vehicle, and this listing supplies one complete Genuine Mazda suspension link. The corresponding right-hand arm is supplied separately under Mazda reference NE51-28-D00B.

Side identification: Left hand refers to the vehicle’s left side when seated in the vehicle facing forwards. On a UK right-hand-drive vehicle, this is the nearside or passenger side.

• Part type: Rear upper trailing link arm
• Common names: Rear upper suspension arm / trailing arm / trailing link
• Mazda catalogue description: Link (L), Trailing
• Fitting position: Rear left
• UK position: Nearside / passenger side
• Location: Upper-forward connection between the left-hand rear hub carrier and rear subframe
• Position relative to shock absorber: In front of the rear shock absorber
• Function: Helps control rear-wheel fore-and-aft position and suspension geometry
• Integral bushes: Included
• Quantity fitted per vehicle: 1 left-hand arm
• Quantity supplied: 1 complete arm
• Right-hand arm included: No
• Mounting bolts or nuts included: No
• Rear hub carrier included: No
• Rear subframe included: No
• Brand: Genuine Mazda
• Part No.: NE51-28-D10B
• Previous Mazda reference: NE51-28-D10A
• Matching right-hand reference: NE51-28-D00B
• MX-5 fitment: All Mk3, Mk3.5 and Mk3.75 NC models

Typical reasons for replacement:

• Integral bushes worn, split or separating from the arm
• Arm bent following kerb, pothole or accident impact
• Rear suspension knocking or clunking
• Excessive rear-wheel movement
• Rear alignment cannot be adjusted within specification
• Uneven or accelerated rear tyre wear
• Vehicle feels unstable or imprecise at the rear
• Arm or mounting sleeves heavily corroded
• Original component damaged during suspension dismantling

Fitment advice: NE51-28-D10B is the left-hand upper trailing link. Confirm the required side and suspension position before ordering, as the corresponding right-hand component and other rear links use different Mazda references.

Replacement advice: Inspect the mounting bolts, retaining nuts, rear subframe mounting points and hub-carrier connections before installation. A replacement arm will not correct damaged threads, distorted mounting points or structural corrosion affecting the subframe or hub carrier.

Alignment advice: A complete four-wheel alignment should be carried out after replacing this arm or disturbing its mounting hardware. Rear suspension geometry directly affects stability, handling response and tyre wear.

Bush-tightening advice: Fasteners passing through bonded rubber bushes should be finally tightened with the suspension at its normal loaded ride position, following the applicable Mazda workshop procedure. Tightening with the suspension hanging can preload the bushes and shorten their service life.

Other items to inspect: Check the matching right-hand upper trailing link, lower lateral links, toe-control links, hub-carrier bushes, wheel bearings, dampers, springs and rear anti-roll-bar components while the suspension is accessible.

Useful tools / consumables: Suitable vehicle lifting equipment, axle stands, socket and spanner set, breaker bar, penetrating fluid, calibrated torque wrench and four-wheel alignment equipment.

Difficulty guide: DIY Difficulty: Moderate to Advanced. Access is from beneath the vehicle, and seized suspension hardware or restricted bolt clearance can make removal more involved.

Why Genuine Mazda? Genuine Mazda suspension links match the original mounting dimensions, arm geometry, bush positions and compliance characteristics. Correct geometry is essential for maintaining the intended rear-wheel movement, alignment range and handling balance.

What’s in the box: One Genuine Mazda left-hand rear upper trailing link arm with integral bushes, part number NE51-28-D10B.

Installation notes: Raise and support the vehicle safely, support the rear hub assembly and remove the arm mounting hardware following the applicable Mazda workshop procedure. Clean and inspect the subframe and hub-carrier mounting points before positioning the replacement arm. Install all fasteners by hand initially and do not force misaligned bolts through the bushes. Carry out final tightening with the suspension at normal ride height where specified, then arrange a complete four-wheel alignment before normal road use.