Mishimoto 25-Row Universal Oil Cooler Kit

The kit arrives ready to install with pre-assembled stainless steel braided lines terminated in -10AN fittings and dowty seals for connections that won't weep under real heat cycles. Two sandwich plate adapters — 3/4"-16 and M20-1.5 — are included to cover the majority of BMW engine families without requiring additional hardware. The billet anodized aluminum sandwich plate mounts cleanly between your filter housing and filter, keeping the install tidy and the engine bay presentable.

For drivers in colder climates or those who frequently drive cold to track, Mishimoto also offers a thermostatic sandwich plate variant that restricts oil flow to the cooler until the engine reaches optimal operating temperature. That means you're not over-cooling on your warm-up lap or your morning commute — the cooler only works when the heat is actually there to manage. It's a meaningful detail that separates this kit from bare-bones universal options.

Mishimoto has spent years refining their thermal management lineup, and this kit reflects that experience — every component from the core to the fittings is spec'd to work as a system rather than a collection of generic parts. Backed by Mishimoto's Limited Lifetime Warranty, this is a one-time investment in engine longevity that pays off every time you push your car hard.