N-908-214-01 Genuine VW/Audi Expanding Retainer Nut - 4.8 x 19.6

Genuine VW/Audi expanding retainer nut, part number N-908-214-01. This original screw retainer has a published nominal size of 4.8 x 19.6. It is specified at the lower-guide attachment in the original bumper/liner retaining arrangement for the configuration below. One nut is supplied.

Technical details

• Original number: N-908-214-01 / N90821401.
• Published nominal size designation: 4.8 x 19.6.
• Expanding screw-retainer construction with a flanged head and central screw opening.
• Assigned application in this profile: lower-guide retainer, catalog position 21, left.
• Mating screw, guide, liner and other retainers are separate.

The retainer seats in its assigned opening and receives the separately specified mounting screw. It provides the original fastening arrangement for the attached guide or trim component. Correct seating and the proper mating screw matter for reliable retention.

This is an expanding retainer rather than a conventional metal hex nut. Match the original number and mounting position. Similar-looking retainers elsewhere in the bumper, liner or trim assembly may have different dimensions or screw requirements.

Common reasons to replace

Replace a missing retainer, cracked body, damaged flange, worn screw engagement or a retainer that no longer seats securely. Inspect it during guide, liner or nearby trim service and renew hardware wherever the applicable procedure requires replacement.

Earlier repairs can leave an unsuitable substitute, damaged retainer or incorrect screw. Inspect the complete attachment before reassembly, including the mounting opening and the component held by the screw.

A loose guide, displaced liner or trim rattle requires inspection of the retainers, screws and attached components. A new nut cannot repair a broken guide, torn mounting hole, cracked panel or missing support. Correct the damaged component and obtain the specified mating hardware before completing the attachment.

Installation and service notes

Follow the factory procedure for the exact guide and liner arrangement. Complete the prescribed access steps and release nearby trim using the appropriate tools to avoid damaging adjacent mounting points.

Identify the assigned lower-guide position and compare the removed retainer with the original number. Clean the mounting area and inspect the opening. A damaged opening or attached component must be repaired before installing replacement hardware.

Seat the retainer fully in its prescribed orientation without crushing the body or damaging the flange. Position the attached guide or liner correctly before starting the separately specified screw.

Use the correct mating screw and follow the original fastening method. Do not substitute a larger screw to compensate for damaged engagement, or force an unsuitable retainer into an opening of a different size.

Apply the factory tightening requirement for the screw and this retaining position. The nominal retainer size does not establish a universal torque value. Excessive tightening can damage the retainer or the component it holds.

After assembly, confirm the guide or liner is seated correctly, every required attachment has the proper hardware and nearby components have their prescribed clearance. Check for loose mounting points before returning the vehicle to service.

This listing supplies one original retainer nut. Select the screw, guide and additional trim hardware separately for the repair.

Fitment

Confirm original N90821401 and the actual guide attachment before ordering. One retainer nut supplied.