7129904553 – BMW Hex Nut with Plate: Essential Component for Secure Fastening

The BMW Hex Nut with Plate (part number 7129904553) is a versatile and essential component used across a wide range of BMW models. This part ensures secure fastening in various applications, including valve covers, door locks, and airboxes. Its reliability and compatibility with numerous BMW vehicles, from the classic E30 to the modern X5, make it a crucial element in maintaining the integrity and performance of your BMW.

Specifications

Specifications for BMW Hex Nut with Plate (Part Number: 7129904553):

• Dimensions: M6 x 1.00mm
• Material: Steel
• Compatibility: Fits a wide range of BMW models from 1983 to 2024, including:
  • 128i, 135i, 228i, 230i
  • 318i, 318is, 318ti
  • 320i, 328i
  • M3
  • X3, X5
  • i7

Applications

The BMW hex nut with plate (part number 7129904553) is a versatile component used in various applications across many BMW models. Here are some key uses:

• Valve Covers: Secures the aluminum valve cover to the head, especially in the M20 6-cylinder engines.
• Door Locks: Helps in fastening door lock mechanisms.
• Dipstick Tube Mounts: Ensures the dipstick tube is securely mounted.
• Airboxes and Charge Pipes: Used in N20/N55 engines to secure stock airboxes and charge pipes.
• Ground Straps and Brackets: Fastens ground straps and various brackets.
• Body Mounted Accessories: Secures various body-mounted accessories.

This part is widely used in BMW vehicles from the E30 to current models.

Installation Process

Here’s a step-by-step guide to install the BMW hex nut with plate (part number 7129904553):

1. Gather Tools and Parts:

   • BMW hex nut with plate (7129904553)
   • Appropriate wrench or socket set
   • Torque wrench
   • Safety gloves

2. Prepare the Area:

   • Ensure the vehicle is parked on a flat surface.
   • Disconnect the battery if working near electrical components.

3. Locate the Installation Point:

   • Identify the specific location where the hex nut with plate needs to be installed. This could be on components like the valve cover, door locks, or other mounts.

4. Position the Plate:

   • Place the plate in the correct position on the component. Ensure it aligns properly with the mounting holes.

5. Insert the Hex Nut:

   • Insert the hex nut through the plate and into the mounting hole. Hand-tighten it to ensure it threads correctly.

6. Tighten the Nut:

   • Use the appropriate wrench or socket to tighten the hex nut. Ensure it is snug but not overly tight to avoid damaging the threads.

7. Torque the Nut:

   • Use a torque wrench to tighten the hex nut to the manufacturer’s specified torque setting. This ensures proper fit and function.

8. Check the Installation:

   • Verify that the hex nut with plate is securely installed and that the component is properly mounted.

9. Reconnect the Battery (if applicable):

   • Reconnect the battery and ensure all electrical components are functioning correctly.

10. Test the Component:

    • Test the component to ensure it is securely mounted and functioning as expected.

Maintenance Tips

Here are some maintenance tips for the BMW hex nut with plate (part number 7129904553):

1. Regular Inspection: Check the hex nut periodically for signs of wear, corrosion, or damage.
2. Proper Torque: Always tighten the nut to the manufacturer’s specified torque to avoid over-tightening or under-tightening.
3. Clean Threads: Ensure the threads are clean and free from debris before installation.
4. Use Anti-Seize Compound: Apply a small amount of anti-seize compound to the threads to prevent galling and make future removal easier.
5. Avoid Cross-Threading: Start threading by hand to avoid cross-threading, which can damage the nut and bolt.
6. Replace When Necessary: If the nut shows any signs of damage or wear, replace it promptly to maintain the integrity of the assembly.

These steps will help ensure the longevity and optimal performance of the hex nut.

The BMW Hex Nut with Plate (part number 7129904553)

The BMW Hex Nut with Plate is a crucial component used across various BMW models, ensuring secure fastening and maintaining the integrity of the vehicle. It fits a wide range of BMW models from 1983 to 2024, including E30 to X5 models.

Applications

The hex nut is used in applications such as:

• Valve covers
• Door locks
• Airboxes
• Ground straps
• Body-mounted accessories

Installation Instructions

1. Gather necessary tools and parts.
2. Prepare the area.
3. Locate the installation point.
4. Position the plate.
5. Insert the hex nut.
6. Tighten it.
7. Torque it.
8. Check the installation.
9. Test the component.

Maintenance Tips

To ensure the longevity and optimal performance of the hex nut, follow these essential maintenance tips:

• Regular inspection.
• Proper torque.
• Clean threads.
• Anti-seize compound application.
• Avoiding cross-threading.
• Replacing when necessary.