Radiator, OEM - E30 325i 88+, E36 325i/328i/M3, Z3, MZ3 (Higher Capacity)

It appears Behr has discontinued production of this radiator. We no longer have an OEM supplier available. Please see our other options for this exact radiator (click here) or see all of our radiator options by clicking here.


Increased capacity and cooling efficiency with factory oil cooler mounts from the OEM supplier.

This radiator is similar to the stock E30/E36 radiator except it features two distinct differences: a thicker core (third row) for added capacity/cooling and oil cooler attachment points at the base of the unit. This radiator was the original design for the Euro E36 M3 and the MZ3 S54 models. This design trades quite a bit of front surface area in order to include the factory oil cooler mounts. It makes up for the smaller frontal area by having a thicker core. These are excellent performance radiators for customers on a budget who do not want an East Asian sourced radiator with questionable quality.

This is an OEM Z3 S54 radiator manufactured by Behr - the original supplier to BMW for this part, as well as many other cooling components. As the OEM it meets all of BMW's original design, fitment, and performance requirements and is TUV approved. OEM parts are the best alternative to more expensive Original BMW parts because they are virtually identical without the inflated price tag. This part has a two year warranty.

TECH NOTE: Radiators with plastic end tanks have a reputation for cracking over time. These types of radiators typically have a 5-10 year service interval depending on use/climate. We suggest replacing plastic end tank type radiators before this period to reduce the chance of failure. Also, we only suggest rubber radiator hoses for plastic end tank radiators. Though more durable, silicone hoses can increase stress on the inlet and outlet snouts and cause prematurely failure. Though costly, the best solution is a quality, all aluminum radiator from a reputable manufacturer.

*Automatic cars require slight modification to allow the transmission cooler to securely bolt on.