MN Model Parts Metal Servo Arm – D4U-10

The MN Model D4U-10 Metal Servo Arm is a premium replacement for the stock plastic servo horn used in MN-series RC crawlers. Crafted from high-strength aluminum alloy , it enhances steering precision and prevents flex or stripping under heavy torque loads. With a secure spline fit and reinforced screw clamp design, this servo arm ensures stable operation and long-term durability — perfect for both brushed and brushless setups. Whether you’re upgrading for performance or reliability, the D4U-10 is a must-have part for your MN crawler’s steering system. Key Features Full Metal Construction: CNC aluminum alloy build for maximum strength. Improved Steering Response: Eliminates flex and ensures consistent torque transfer. Perfect Fit: Designed for MN Model servos and compatible servo splines. Lightweight & Durable: Maintains rigidity without adding excess weight. Direct Replacement: Installs easily with included mounting hardware. Compatible Models ✅ Direct Fit MN128 MN99 / MN99S MN90 / MN90K MN86 / MN86S MN82 / MN82S MN78 MN91 MN168 ⚙️ Also Compatible with WPL Models (using 25T servo spline) WPL C14 / C24 / C44KM WPL B14 / B24 WPL D12 / D42 🔧 Tip: For best results, use with MN or standard 17G/25G metal gear servos. Specifications Parameter Details Brand MN Model Model Number D4U-10 Part Name Metal Servo Arm Material CNC Aluminum Alloy Type Upgrade Part Application Steering Servo Arm Compatibility MN & WPL 1/12–1/16 Crawlers Includes 1× Metal Servo Arm

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