Honda K20/K24 to BMW 8HP45/50/70/75 Adapter Kit (N55/N57/B58/B57/S58)

Upgrade your Honda K20 or K24 engine to a BMW 8HP series automatic transmission (8HP45, 8HP50, 8HP70, 8HP75) including N55, N57, B58, B57, and S58 gearboxes with this high-quality adapter kit. Designed for performance swaps and custom builds, this kit ensures a precise, reliable, and durable connection between your Honda engine and BMW transmission.

Key Features

• Adapter kit for Honda K20/K24 engines to BMW 8HP45/50/70/75 transmissions
• Compatible with N55, N57, B58, B57, and S58 gearboxes
• Billet flywheel made from high-strength steel (SS2541) for maximum durability
• Adapter plate CNC-machined from high-grade aluminum with natural anodized finish
• Adapter plate thickness: 15 mm for proper alignment and torque handling
• Precision machining ensures accurate fitment and long-term reliability

Kit Contents

• Adapter plate
• Billet flywheel
• Center guide
• Mounting hardware (bolts and dowels)

Why Choose This Adapter Kit?

• Enables Honda K20/K24 engines to pair with modern BMW 8HP transmissions
• Premium billet flywheel and aluminum adapter ensure strength and durability
• Perfect for engine swaps, high-performance builds, and custom projects
• Professional-grade CNC machining guarantees precise installation and reliable performance

This adapter kit is ideal for tuners, performance enthusiasts, and professional builders who want to combine Honda power with the strength and smoothness of BMW 8HP transmissions.