Connects the cylinder head to the expansion tank
2X Entries Into Our F80 M3 Sweepstakes For models with the earlier B48D, B46D, or B46X engines - Not compatible with the later models that feature the B48N/B48P engine
Prevent coolant leaks with a brand new hose
2X Entries Into Our F80 M3 Sweepstakes For models with a production date up to 07/2021 or a production date from 07/2021+ without Control DSC (S8WEA)
A more advanced refresh kit - with primary cooling system hoses and an accessory belt
10X Entries Into Our F80 M3 Sweepstakes For vehicles without DSC Control (S8WEA) or Recuperation System (S1CEA)
Brand:
ES#:
4846247
Mfg#:
G20330XCSR2KT
Ships in 4 Business Days
$1834.99
This product was last offered at the strikethrough price on 08-13-2026
Contains the components that commonly fail in your cooling system
10X Entries Into Our F80 M3 Sweepstakes For vehicles without DSC Control (S8WEA) or Recuperation System (S1CEA)
Brand:
ES#:
4846246
Mfg#:
G20330XCSR1KT
Ships in 4 Business Days
$935.99
This product was last offered at the strikethrough price on 07-06-2026
Replacement plastic coolant reservoir for the low temp circuit that cools your intercooler
For models with the later Gen3 engines only (B58N & B48P) - Not for use with the early Gen3 engines (B58D & B46D/X)
Brand:
ES#:
4757672
Mfg#:
17135A270D3
Ships in 4 Business Days
6% off MSRP
MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.
$170.99
This product was last offered at the strikethrough price on 10-16-2026
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 Into Our F80 M3 Sweepstakes For vehicles without Energy Recovery System (S1CEA)
Brand:
ES#:
5425168
Mfg#:
G2XB48DOFHL1KT
Ships in 6 Business Days
ON SALE!
SAVE 13%
$1106.99
This product was last offered at the strikethrough price on 06-15-2026
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 Into Our F80 M3 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)
Brand:
ES#:
5425185
Mfg#:
G2XB48DOFHL3KT
Ships in 6 Business Days
$2377.99
This product was last offered at the strikethrough price on 06-09-2026
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 Into Our F80 M3 Sweepstakes For vehicles without Energy Recovery System (S1CEA) For models with a production date from 07/2021+ with Control DSC (S8WEA)
Brand:
ES#:
5425190
Mfg#:
G2XB48DOFHL3AKT
Ships in 7 Business Days
$2377.99
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 Into Our F80 M3 Sweepstakes For vehicles without DSC Control (S8WEA) or Recuperation System (S1CEA)
Brand:
ES#:
4846248
Mfg#:
G20330XCSR3KT
Ships in 7 Business Days
$3202.99
This product was last offered at the strikethrough price on 08-13-2026
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 Into Our F80 M3 Sweepstakes
Optimize your engine cooling system performance and heater output with quality drive belts, coolant hoses, cooling system parts, and approved coolant fluids from ECS Tuning. Head off expensive repairs and untimely breakdowns with regularly scheduled cooling system inspection and maintenance.
