22RPD Turbo Oil Drain Fitting – E36/E46 M3 & Non-M Cars

The Ultimate No-Weld Turbo Oil Drain Solution

We designed the 22RPD Turbo Drain Fitting to provide a bolt-in solution for factory E36 and E46 oil pans. Whether you're running an S50, S52, M52, M50, S54, M54, or M52TU, this fitting allows you to convert the factory drain port into a -10AN connection—no welding required.

Key Features:

• Direct Fit – Installs in the factory oil pan drain location, eliminating the need for welding or modifications.
• High-Flow Design – Oversized return hole flows more oil than a ball-bearing turbo, ensuring proper drainage.
• Premium Construction – Stainless steel body for durability and corrosion resistance.
• Optimized for Tight Spaces – Internal 8mm Allen key drive eliminates fitment issues seen with traditional hex fittings.
• Complete Solution – Includes a new crush washer for a proper seal.

Proven & Tested

We have extensively tested this fitting with our E36 top-mount turbo kits and E46 M3 bottom-mount setups using SPA turbo manifolds. This solution assists with proper oil return flow and a hassle-free installation without leaks.

Specifications:

• Thread Size: M12x1.5 to -10AN
• Torque Spec: 18 ft-lbs

Compatible Engines:

• E36/E46 M3 & Non-M: S50, S52, M52, M50, S54, M54, M52TU

Designed by 22RPD for turbocharged BMW enthusiasts who demand reliability and ease of installation. No hacks, no leaks—just results.

Upgrade your turbo oil drain the right way—bolt in, seal up, and boost on.