OVERVIEW
Genuine M8×18 hex-head mounting bolt
The N-010-239-29 Genuine VW/Audi bolt is a factory M8×18 hex-head fastener used at the specific Vanagon attachment points listed below. Correct length and head design help maintain the intended connection geometry.
This standard hardware number appears in more than one assembly. The fitment table identifies the verified mounting application for each vehicle row. A vehicle match does not mean this bolt replaces every M8 fastener on that vehicle.
Technical details
- Complete factory number: N-010-239-29.
- Factory specification: M8 × 18.
- Design: external hexagon-head bolt.
- Quantity supplied: one individual bolt.
The nominal thread diameter and length identify the fastener; washers and brackets remain application-specific. Reuse or replace associated components only as directed by the factory repair procedure. The bolt is supplied individually.
Common reasons to replace
- The original bolt is missing after bracket or body service.
- The hex head is rounded and cannot be tightened correctly.
- The threads are damaged or cross-threaded.
- The fastener has physical or corrosion damage.
- A previous repair installed hardware with the wrong length or head design.
Check the mating threads and retained brackets for wear, cracking or distortion. Correct any damaged mounting feature before fitting a new bolt. For steering-pump attachments, also inspect the bracket and drive arrangement according to the factory procedure.
Vehicle fitment
Match the original assembly and assigned bolt location. The listed bumper, power-steering and manual-shift applications are separate uses of the same factory hardware number.
| Vehicle | Model years | Engine | Configuration | Application restrictions |
|---|---|---|---|---|
| Volkswagen Vanagon | 1988–1989 | 2.1L water-cooled gasoline flat-four | Original front/rear bumper mounting arrangement; Original bumper hardware | M8×18 bumper mounting position assigned N01023929; match original washer and bracket arrangement. |
| Volkswagen Vanagon | 1990 | 2.1L water-cooled gasoline flat-four | Factory hydraulic power steering; Hydraulic pump bracket mounting | Original hydraulic power-steering pump bracket assigned N01023929. |
| Volkswagen Vanagon | 1991 | 2.1L water-cooled gasoline flat-four | Original mechanical gearshift linkage; Manual transmission | Original shift-linkage flange hardware position assigned N01023929; not automatic selector hardware. |
Installation guidance
Support the retained component and follow its factory service procedure. Confirm the required washer arrangement, align the mounting holes and start the bolt by hand. Tighten using the specification for that exact connection; do not transfer torque values between these different assemblies.
Check that the retained bracket or component is secure. Restore any alignment or adjustment disturbed during service and perform the required functional checks before returning the vehicle to use.
Ordering information
Supplied as one genuine bolt. Washers, nuts, brackets, pump, linkage and bumper components are not included. Confirm the original hardware number and the quantity required for the selected attachment.