OVERVIEW
Genuine VW/Audi collared hex bolt, part number N-910-398-02. This original M12 x 1.5 x 90 fastener secures the outer position of the front control-arm rear bushing bracket to the chassis for the configurations below. Match the original number at the actual rear bracket of the front control arm before ordering.
Technical details
- Original number: N-910-398-02 / N91039802.
- Published nominal size: M12 x 1.5 x 90.
- External hex head and integral collar beneath the head.
- One bolt required per bracket, two per vehicle; one bolt supplied. Control arm, bracket, bushings and other attachment hardware are separate.
- Different control-arm mounting positions can require different bolts.
The front control arm and its rear bracket form part of the suspension attachment to the vehicle. The outer bolt is separate from the other bracket bolts and the control arm's front bushing attachment. Correct bracket hardware keeps the assembly seated at its specified mounting points. This long collared bolt is one fastener in that arrangement, not a complete control-arm installation kit.
The same original number can be assigned to other mounting uses. The table below identifies the confirmed control-arm bracket profiles; select by the original number and actual mounting position rather than treating the nominal thread size as universal fitment.
Common reasons to replace
Renew hardware during control-arm or bracket service when the factory procedure calls for new bolts after removal. Replace missing fasteners, damaged threads, a rounded hex head, deformation or corrosion affecting reliable installation.
Bracket removal can expose incorrect substitute hardware or damage caused by earlier repair work. Inspect the bracket contact surfaces, bushings and mating threaded holes before assembling new hardware.
Suspension noise, play or changes in steering behavior require diagnosis of the complete suspension and steering system. A new bracket bolt cannot repair a torn bushing, worn ball joint, cracked bracket or damaged threaded mounting point. Resolve those defects before completing the connection.
Installation and service notes
Follow the factory procedure for the exact front control-arm and bracket arrangement. Support the vehicle and suspension as prescribed before releasing mounting hardware.
Identify the assigned M12 x 1.5 x 90 bolt position and inspect the associated bracket and threads. Keep any alignment marks or component-position instructions required by the repair procedure, and prepare mating surfaces as directed.
Position the bracket correctly and start the bolt by hand in undamaged threads. Use the correct hex socket, then tighten the complete attachment in the prescribed sequence.
Use the specified torque and any required additional angle for this exact position. Do not infer torque from M12 x 1.5 x 90 or transfer a value from a different control-arm bolt or steering-rack fastener.
Follow the prescribed suspension position, thread preparation and hardware replacement requirements. If the bolt binds or the bracket does not seat normally, inspect alignment and hardware selection before proceeding.
Complete the required suspension, steering and alignment checks after service. This listing supplies one original bolt. Other bracket or control-arm positions may use different lengths, and their hardware must be selected separately.
Fitment
| Vehicle | Model years | Engine | Configuration | Application restrictions |
|---|---|---|---|---|
| Volkswagen GTI | 2010–2014 | 2.0L turbocharged TSI gasoline, CCTA / CBFA | Mk6 hatchback, front-wheel drive; 6-speed manual | Outermost front control-arm rear bushing bracket-to-chassis bolt requiring N91039802. One per bracket, two per vehicle; one supplied. Other bracket fasteners differ. |
| Volkswagen GTI | 2010–2014 | 2.0L turbocharged TSI gasoline, CCTA / CBFA | Mk6 hatchback, front-wheel drive; 6-speed DSG | Outermost front control-arm rear bushing bracket-to-chassis bolt requiring N91039802. One per bracket, two per vehicle; one supplied. Other bracket fasteners differ. |
Confirm original N91039802 at the outer front control-arm rear bracket-to-chassis position. One bolt supplied.