
Product Details:
Upgrade your steering system with the BZ1 Boss Kit — a high-precision hub adapter designed for Mercedes Benz models with non-airbag steering setups. This adapter supports 70 mm / 74 mm PCD aftermarket 6-bolt steering wheels, maintaining factory steering alignment while providing a clean, durable mounting solution.
Vehicle Compatibility (Models / Generations)
Mercedes Benz W123
Mercedes Benz W124
Mercedes Benz W126
Mercedes Benz W129
Mercedes Benz W140
Mercedes Benz W201
Mercedes Benz 190E
Specifications & Features
Bolt Patterns: 70 mm and 74 mm PCD — supports dual patterns for broad compatibility
Spline / Shaft Interface: Big-hole with 21 mm spline size (for models stated)
Intended Use: For non-airbag steering wheel installations only
Material & Build: High-quality construction (aluminum / alloy body, precision machining)
Finish & Style: Designed to match OEM aesthetics and withstand daily / performance use
Wheel Compatibility: Works with aftermarket 6-bolt wheels (brands like NRG, MOMO, Sparco, Nardi, etc.)
Package Includes
1 × BZ1 Boss Kit hub adapter
Notes & Precautions
Not compatible with factory airbag steering wheels or wiring
Verify your wheel’s bolt pattern (70 mm, 74 mm PCD) before ordering
Professional installation recommended for alignment and torque specs
Because it’s for non-airbag usage, you may need to bypass or otherwise manage airbag warnings
Shipping & Processing
Orders typically process within 1–2 business days
Free shipping via USPS / UPS / FedEx within the U.S.
For international or bulk orders, please contact PGUSA