Mishimoto MMRT-E36-92EBK Black Aluminum Expansion Tank for 1992-1999 BMW E36

Vehicle Fitment

• 1992-1999 BMW E36 (325i, 325is, 328i, 328is, M3; 6-cyl RWD)
• 1998-1999 BMW 323i/323is (E36)
• 1997-2002 BMW Z3 (2.0i-3.0i, M coupe/roadster) with 6-cyl engines

Features

• Direct-fit aluminum expansion tank engineered for BMW E36 platforms
• TIG-welded 6061 aluminum construction for superior durability
• Black finish enhances engine bay appearance
• CNC-machined dipstick doubles as bleeder for coolant level accuracy
• Included high-pressure radiator cap raises coolant boiling point
• Fits with stock and Mishimoto Performance Fan Shroud Kit
• Easy installation using OEM mounting points in under 1 hour
• Backed by Mishimoto Lifetime Warranty

Specifications

• Part Number: MMRT-E36-92EBK
• Material: 6061 aluminum
• Finish: Black anodized or powder-coated
• Pressure Cap: Mishimoto high-pressure cap included
• Engine Types: 2.5L-3.2L I6 (M20B25, M50TU, M52, S52)
• Mounting Location: OEM expansion tank location on E36 chassis
• Compatible Fan Shroud: Stock or Mishimoto E36 Performance Shroud
• Torque Spec: ~22 in-lbs (2.5 Nm) for worm-gear clamp

Included Components

• 1x Black aluminum expansion tank
• 1x CNC-machined dipstick/bleeder
• 1x Mishimoto high-pressure radiator cap
• 1x Coolant overflow hose
• 1x Worm-gear clamp
• Mishimoto Lifetime Warranty documentation

Product Description

The Mishimoto MMRT-E36-92EBK Black Aluminum Expansion Tank is a high-quality, direct-fit upgrade designed specifically for the 1992-1999 BMW E36 series and compatible 6-cylinder Z3 models. Constructed from fully TIG-welded 6061 aluminum, this expansion tank replaces the stock plastic reservoir with a durable and visually appealing black unit. A CNC-machined dipstick doubles as a bleeder, assisting in accurate coolant level monitoring and aiding in the bleeding process during installation - helping ensure optimal system performance.

Included with the tank is a Mishimoto high-pressure radiator cap that raises coolant boiling point for improved thermal performance, along with a reinforced overflow hose and worm-gear clamp for a secure fit. Designed to install using factory mounting points, this expansion tank enhances reliability and longevity compared to OEM plastic tanks, and is an ideal cooling upgrade for street or track-oriented BMW E36 or Z3 enthusiasts maintaining a 6-cylinder engine.