Dress up your engine bay with new coolant expansion tank caps
For model years up to 2023
BMW G20 330i xDrive B46 2.0L Engine Cooling Parts
- Bleeder Screw
- Coolant
- Coolant Flanges
- Expansion Tank
- Fan
- Hoses
- Lines
- Oil Cooler
- Performance
- Radiator
- Refresh Kit
- Temperature Sensor
- Thermostat
- Tools
- Water Pump
Replace your faulty coolant pump to keep engine temperatures under control
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Includes the main components needed to replace the two biggest B48 cooling issues - featuring an upgraded Aluminum Oil Filter Housing and new Coolant Thermostat Module
10X Entries For Our 25th Anniversary Sweepstakes!
For vehicles without Energy Recovery System (S1CEA)
This product was last offered at the strikethrough price on
06-15-2026
Whether you’re under the hood for a weekend project or keeping a high-performance engine in peak shape, the last thing you want to worry about is a brittle cooling system. That’s where the Rein Automotive Expansion Tank
2X Entries For Our 25th Anniversary Sweepstakes!
A more advanced refresh kit - with primary cooling system hoses and an accessory belt
10X Entries For Our 25th Anniversary Sweepstakes!
For vehicles without DSC Control (S8WEA) or Recuperation System (S1CEA)
This product was last offered at the strikethrough price on
07-06-2026
Our most comprehensive kit yet, including the majority of components that should be replaced when repalcing your oil filter housing and thermostat module - featuring an Aluminum Oil Filter Housing, Coolant Thermostat Module, and coolant pump assembly!
10X Entries For Our 25th Anniversary Sweepstakes!
For vehicles without Energy Recovery System (S1CEA)
For models with a production date from 07/2021+ with Control DSC (S8WEA)
This product was last offered at the strikethrough price on
06-09-2026
Everything you need to service your cooling system, including a radiator and belt service.
10X Entries For Our 25th Anniversary Sweepstakes!
For vehicles without DSC Control (S8WEA) or Recuperation System (S1CEA)
Our most comprehensive kit yet, including the majority of components that should be replaced when repalcing your oil filter housing and thermostat module - featuring an Aluminum Oil Filter Housing, Coolant Thermostat Module, and coolant pump assembly!
10X Entries For Our 25th Anniversary Sweepstakes!
For vehicles without Energy Recovery System (S1CEA)
For models with a production date up to 07/2021 or a production date from 07/2021+ without Crontrol DSC (S8WEA)
This product was last offered at the strikethrough price on
06-09-2026