The Zionsville Autosport high capacity engine oil cooler fits the 2001-2002 BMW Z3 S54 M Roadster or M Coupe. It will also fit European E36 M3s, vehicles retrofitted with S54 M Roadster radiators or the Zionsville Autosport type #4 radiator.

Our Competition Thermostat Housing, machined from billet T-6061 aluminum and anodized for protection, is designed to return the selection of normal engine operating temperature to the owner/builder and improve engine longevity by replacing the failure prone plastic electronically-controlled thermostat with a mechanical unit. Kit includes aluminum housing, seal, o-ring, screws (4), washers (4) and 92 degree mechanical thermostat.

Our Type 1 Radiator is a direct replacement for late e30s and e36 three series models. It fearures 65% increaded fluid capacity, better dissipating materials over stock and a lifetime warranty. [See Full Description Below]

Radiators and shroud kits are built to order. Lead-time varies.

Our E31 aluminum radiator is a direct replacement for the 1994-95 850csi. It fearures all aluminum construction for better dissipation over the stock unit. And it's backed by a lifetime warranty. [See Full Description Below]

Radiators and shroud kits are built to order. Lead-time varies.

Our E32 aluminum radiator is a direct replacement for the 1993-94 740i, 1993-94 740il. It fearures all aluminum construction for better dissipation over the stock unit. And it's backed by a lifetime warranty. [See Full Description Below]

Radiators and shroud kits are built to order. Lead-time varies.

Our E34 aluminum radiator is a direct replacement for 1994-95 530s and 540s. It fearures all aluminum construction for better dissipation over the stock unit. And it's backed by a lifetime warranty. [See Full Description Below]

Radiators and shroud kits are built to order. Lead-time varies.

Our Type 2 Radiator is a direct replacement for the stock Z3 radiator. It fearures 65% increaded fluid capacity, better dissipating materials over stock and a lifetime warranty. [See Full Description Below]

Radiators and shroud kits are built to order. Lead-time varies.

Our Type 4 Radiator is a direct replacement for the e36 three series. It fearures increaded fluid capacity, better dissipating materials over stock and a lifetime warranty. This version also has two rows removed and mounting provisions to accommodate a factory oil cooler (not included). [See Full Description Below]

Radiators and shroud kits are built to order. Lead-time varies.

Our Type 3 Radiator is a direct replacement for the stock Z3 radiator. It fearures increaded fluid capacity, better dissipating materials over stock and a lifetime warranty. This version also has two rows removed and mounting provisions to accommodate a factory oil cooler (not included). [See Full Description Below]

Radiators and shroud kits are built to order. Lead-time varies.

The "Fat Boy" is designed around a 54MM two row core. We widened the side tanks and added the purge tank as a standard feature. [See Full Description Below]

Radiators and shroud kits are built to order. Lead-time varies.