Mishimoto Oil Cooler Line Fitting Kit — E36 / E46 / E90

The kit's -10AN inlet and outlet ports give you genuine flexibility in how you route your oil lines, whether you're plumbing to a stacked-plate cooler tucked behind the bumper or integrating an oil accumulator into a forced induction build. Note that E36 compatibility requires a Euro-spec oil housing — verify your setup before ordering. E46 and E90 owners bolt straight in.

Two genuine OEM BMW O-rings are included in the kit, so you're not sourcing seals separately or settling for generic replacements. The result is a clean, leak-free install from the first startup — important when you're putting your engine through track sessions or boost. Mishimoto designed this as part of a complete cooling ecosystem, and it pairs directly with their stainless steel braided oil lines and stacked-plate coolers for a fully matched setup.

Mishimoto has built its reputation as a go-to brand for performance thermal management, and this fitting kit reflects that standard. It's covered by their Lifetime Warranty — a genuine commitment to product quality, not a marketing checkbox. For any BMW owner serious about protecting their engine on or off the track, this is the right starting point.