Our E46 M3 Silicone Coolant Hose Kit is designed to replace the original equipment upper and lower radiator hoses.
The BimmerWorld silicone hoses are a 3-layer polyester-core design which makes them much more durable than stock. They can hold more pressure and retain their flexibility longer without the aging and cracking issues of rubber hoses.
This kit includes the two most common failure hoses - upper and lower radiator, and includes new OEM hose connectors. While these connectors are optional from some suppliers, they are a common failure point and should always be replaced with new parts.
We recommend replacing your remaining hoses with new rubber pieces as preventative maintenance.
E46 (01-06) > M3