Known for coming loose and leaving you with no oil pressure the elusive BMW Oil Pump nut failure can ruin you day and usually ruin your engine! When the oil pump nut comes loose and falls off it allows your oil pump gear to do the same. With nothing to spin your pump you INSTANTLY loose all oil pressure. With this EDM drilled Oil Pump Nut and the provided safety wire you can be sure your oil pump nut will never come loose again.

Made only from Genuine BMW Oil Pump Nuts.

Replaces BMW Part Number:

• 07-11-9-905-857 (07119905857)
• 11-41-1-735-137 (11411735137)

Tech Tip

• At the same time, while the oil pan is removed we recommend to install our Achilles Motorsports Oil Pan Baffle, if not already installed.
• Also recommended is the installation of our Achilles Motorsports Reinforced Oil Pick-up Tube. After several years of racing with these engines(M50/M52/S50/S52us) we found out the harsh vibration and harmonics due to stiffer engine and transmission mounts can also lead to the cracking of the oil pickup tube. The cracks develop at the end of the suction tube allowing the oil pump to suck air creating an instant loss of oil pressure! We developed a reinforcement kit to prevent these sort of issues. We also sell the modified/reinforced tube.