Baywindow Bus Rear Hub Nuts and Split Pins - 46mm Axle Nut With 6 Crowns (Also Splitscreen Bus 1964-67)

Keep your classic Volkswagen’s rear hub nut safely secured with this replacement split pin, designed for all VW Splitscreen, Baywindow, and Type 25 (T3) Buses.

Measuring 56mm long by 5mm wide, this heavy-duty split pin is an essential safety component used to lock the rear hub nut in place after correct torqueing. It prevents the nut from loosening during driving, maintaining the integrity of your rear wheel bearings and ensuring safe operation of the rear axle assembly.

Constructed from durable, corrosion-resistant steel, this split pin provides a strong and lasting hold even under demanding conditions. It’s an ideal replacement during hub nut service, brake drum removal, or bearing maintenance.

Sold individually — two required per vehicle (one per rear hub).

Key Features:

• Replacement rear hub nut split pin for classic VW models

• Fits Splitscreen (1950–1967), Baywindow (1968–1979), and Type 25 (T3, 1979–1992)

• 56mm length × 5mm width

• Prevents rear hub nut loosening and wheel bearing damage

• High-strength, corrosion-resistant steel construction

• Easy to fit and secure – a must when replacing or re-torquing hub nuts

• Sold separately (2 required per vehicle)

Applications:

• VW Transporter Splitscreen (1950–1967)

• VW Transporter Baywindow (1968–1979)

• VW Transporter Type 25 / T3 (1979–1992)

Specification:

• Length: 56mm

• Width: 5mm

• Material: Steel

• Quantity: Sold individually

This 46mm rear axle nut is a good quality reproduction designed to secure the rear brake drum to the axle on classic VW Buses. This version features the 6-crown castellated design, which was originally used on Splitscreen Buses from August 1963 to July 1967, and throughout the production of Baywindow Buses (1968–1979).

The castellated (or “crowned”) design is made to work with a split pin for secure locking, preventing the nut from loosening under load or vibration. A crucial part of the rear hub assembly, this nut ensures the brake drum stays properly torqued to the axle—essential for safe and reliable braking performance.

Note:

• This 6-crown version is not suitable for Type 25 (T3) Buses, which use a 10-crown nut. If you need the 10-crown version, see part number N90149601.

• One nut is required per rear hub. Sold individually.

Whether you`re restoring a vintage VW Bus or simply replacing worn or damaged components, this axle nut is a must-have for maintaining correct factory-spec fitment and safety.

Applications:

• VW Splitscreen Van: Aug 1963 – July 1967

• VW Baywindow Van: 1968 – 1979