Wilwood Rotor-GT60 SPC-37-LH-BLK 15.50 x 1.38 - 12 on 10.25in 2023-bmw-m440i-xdrive-gran-coupe-esi6943794 67in Thick)

67in Thick)

This both increases the fluid capacity of the radiator

All three cores are available in a polished finish and include the Mishimoto Lifetime Warranty for a worry-free installation

PTFE-Lined FK BearingsMaterials6061-T6 Aluminum Arm Body6061-T6 Aluminum Spacers & Spring Alignment Pucks4130 Chromoly Steel Double Adjuster304 Stainless Steel Spring SeatsTi-6Al-4V Titanium Hardware (Anodized Blue)Swift 60mm Spring Thrust Washers

40-micron Stainless replaceable element

Wilwood Rotor-GT60 SPC-37-LH-BLK 15.50 x 1.38 - 12 on 10.25in 2023-bmw-m440i-xdrive-gran-coupe-esi6943794 67in Thick)Wilwood's GT & GTB 60 Curved Vane Spec 37 rotors are manufactured from a proprietary iron alloy developed to withstand extreme temperatures with the highest possible degree of resistance against distortion, warping, cracking, and wear. The formulation for this alloy is a derivative of technology and materials that were significant in the development of the extreme duty military spec rotors that are manufactured by Wilwood. Combined with our proven GT