VTT Upgraded Silicone G8X (S58) coolant hose kit

VTT Upgraded Silicone G8X (S58) Coolant Hose Kit

Available in BLACK as of 3/12/26 with RED, BLUE, and ORANGE coming very soon!

Upgrade the Weak OEM Plastic Coolant Connectors on Your BMW S58

The issue with the factory S58 coolant system is not the rubber hoses themselves — it’s the OEM plastic quick-connect fittings. Over time, these plastic connectors can become weak, crack, or fail, especially in high-heat performance environments.

VTT offers an upgraded 6-ply silicone coolant hose kit for the BMW S58 platform, featuring CNC-machined billet aluminum connectors for improved durability, reliability, and long-term performance.

This kit is designed as a direct replacement for multiple factory coolant hoses and connector assemblies shown in the OEM BMW cooling system diagram.

Beyond improving reliability, these hoses also add a splash of color to your engine bay, giving the S58 a cleaner and more performance-focused appearance.

Order the complete kit for a savings of almost 15%!

VTT Upgraded Silicone G8X (S58) Coolant Hose Kit

Available in BLACK as of 3/12/26 with RED, BLUE, and ORANGE coming very soon!

Upgrade the Weak OEM Plastic Coolant Connectors on Your BMW S58

The issue with the factory S58 coolant system is not the rubber hoses themselves — it’s the OEM plastic quick-connect fittings. Over time, these plastic connectors can become weak, crack, or fail, especially in high-heat performance environments.

VTT offers an upgraded 6-ply silicone coolant hose kit for the BMW S58 platform, featuring CNC-machined billet aluminum connectors for improved durability, reliability, and long-term performance.

This kit is designed as a direct replacement for multiple factory coolant hoses and connector assemblies shown in the OEM BMW cooling system diagram.

Beyond improving reliability, these hoses also add a splash of color to your engine bay, giving the S58 a cleaner and more performance-focused appearance.

Key Features

• Premium 6-ply reinforced silicone hose construction

• CNC-machined billet aluminum connectors

• Designed to replace failure-prone OEM plastic connector assemblies

• Direct-fit installation

• Adds a clean performance look to the engine bay

• Available in Black, Red, Blue, or Orange

Whether you’re going for an OEM-plus look or a bold performance aesthetic, these hoses let you add color and visual impact to the S58 engine bay while improving reliability.

Factory Hoses Replaced

This kit replaces the following factory hose assemblies shown in the BMW diagram:

#1 – 17 12 8 096 427
Lower Radiator Hose

#3 – 17 12 8 096 423
Upper Radiator Hose

#7 – 17 12 8 096 444
Coolant Expansion Tank to Water Pump

#13 – 17 12 8 096 447
Charge Cooler Feed Hose

#14 – 17 12 8 096 450
Charge Cooler Vent

#15 – 17 12 8 053 470
Coolant Expansion Tank to Cylinder Head Vent

#18 – 11 53 8 054 852
Cylinder Head to Water Pump Inlet
(Also used on various F9X and X3M/X4M applications)

Fitment

BMW S58 Platforms

• G80 M3

• G81 M3 Touring

• G82 M4

• G83 M4 Convertible

• G87 M2

Upgrade to a Better Cooling Solution

If you’re looking to eliminate the weak points in the factory S58 cooling system, this kit replaces multiple OEM hose assemblies that rely on plastic quick-connect fittings with a more durable VTT billet-connected silicone solution.

Improve reliability, clean up the engine bay, and add a splash of color to your S58 with VTT’s upgraded silicone coolant hose kit.

Perfect for street, track, and high-horsepower builds where long-term reliability matters.