Metal Adapter 5mm to 12mm — Aluminum Alloy Adapter for MN86 WPL D12 C14 C24 B14 B16 MN D90 D91 Truck Upgrade Parts

Upgrade your RC truck drivetrain with a durable, precision adapter that converts 5mm shafts to 12mm fitments. Built from lightweight aluminum alloy, this adapter is designed for modified MN86, WPL, and MN-series trucks that need a stronger, more reliable connection between motor/axle components.

• Precision-machined aluminum alloy for high strength and reduced weight
• Converts 5mm input shaft to 12mm output hub quickly and securely
• Corrosion-resistant finish for long-lasting performance in hobby use
• Ideal for modified MN86, WPL D12/C14/C24, B14/B16 and MN D90/D91 trucks

Key benefits

• Increase drivetrain compatibility without replacing expensive parts
• Improve torque transfer and reduce slop between mismatched shafts
• Lightweight upgrade that won’t add unnecessary rotational mass

Compatibility

• Direct fit for: MN86, MN D90, MN D91
• Compatible with WPL models: D12, C14, C24
• Also fits: B14, B16 and many modified RC truck setups that require a 5mm→12mm adapter
• Verify your shaft diameters (5mm input, 12mm mating hub) before purchase

Specifications

• Material: Aluminum alloy (precision-machined)
• Input shaft diameter: 5mm
• Output hub diameter: 12mm
• Finish: Anodized / corrosion-resistant surface
• Package: 1 × Metal Adapter (5mm → 12mm)

Installation & notes

• Slide adapter onto 5mm shaft and secure with set screw or retaining hardware (not included depending on model)
• Check for tight, wobble-free fit before full operation
• Small filing or shimming may be required for third-party hubs — contact a tech if unsure

Why choose this adapter

• Specifically tailored for MN86 and popular WPL/MN truck upgrades
• Robust aluminum alloy construction outperforms plastic adapters
• Fast, affordable way to adapt your drivetrain for modified setups

Upgrade your RC truck now — add the Metal Adapter 5mm to 12mm Aluminum Alloy Adapter to your cart for a quick, reliable drivetrain fix.