SpeedFactory Billet Thermostat Housing for B/D Series (32 mm)

SpeedFactory's precision-engineered billet thermostat housing delivers superior cooling system performance for B and D series engines. Machined from high-quality billet aluminum, this 32mm housing offers improved heat dissipation and reliability compared to OEM components. The robust construction withstands elevated engine temperatures while maintaining consistent coolant flow. Direct bolt-on fitment ensures hassle-free installation without modification. Ideal for street, drift, and track applications where dependable thermal management is essential.