Mishimoto BMW E36/E46 M50/M52/M54/S50/S52 Water Pump

Replace your BMW's M50/M52/M54/S50/S52 water pump before it fails and overheats the inline-six. This Mishimoto replacement features a durable cast-aluminum body and a metal impeller for improved longevity over plastic-impeller pumps, and includes a new water pump O-ring for a leak-free, hassle-free installation. Pair it with Mishimoto Liquid Chill® Synthetic Engine Coolant to protect the system and improve pump lubrication. Backed by the Mishimoto Lifetime Warranty.

Specifications

This Part Fits:

Shipping

• In-stock orders placed before 3 PM EST ship the same day — everything else ships within 24 hours.
• Standard, expedited, and overnight options at checkout.
• Oversized items ship by freight and take longer.
• Backordered items ship as soon as stock lands — contact us for lead times.
• International orders: prices do not include VAT, duties, or import fees. Your country charges these at import and they are the buyer’s responsibility.

Returns

• 30-day returns on new, uninstalled items in original packaging with all hardware.
• Standard returns: 8% restocking fee, buyer pays return shipping. Both waived if the item is defective or we made the error.
• Installed or used parts can’t be returned — confirm fitment before you install.
• Special orders and custom items are final sale.
• Email us for return authorization before shipping anything back.

Full details: Shipping Policy · Refund Policy