65mm Billet 10AN Turbo Drain Oil Flange for Small-Frame Turbochargers

Stop chasing leaks with generic flanges that never quite fit. This precision-machined billet aluminium drain flange is built to small-frame specs from the ground up.

Features & Benefits

Purpose-Built 65mm Bolt Pattern

Engineered specifically for small-frame turbocharger centre sections, including popular GT28, GT30, GT35, HX30, and HX35 series units. No adapters, no shimming, no guesswork — just a clean, flush mount every time.

Billet Aluminium Construction

CNC-machined from solid billet aluminium for the rigidity and leak-free sealing surface that stamped or cast flanges simply can’t match. Whether you’re running a gravity drain into the oil pan or a scavenge pump return, this flange holds up to the demands of a hard-working turbo build.

Integrated 10AN Male Port

The AN-10 drain port is machined directly into the flange body, so your oil return line connects straight. No extra fittings or adapters stacking up in an already tight engine bay means less hardware, fewer potential leak points, and a cleaner install.

Precision Sealing Surface

The machined mating face is held to tight tolerances for a reliable O-ring seal against the turbo centre cartridge — critical for keeping oil where it belongs on any build, from a weekend street car to a full turbo rebuild or performance swap.

Compact Profile

Designed with tight engine bay clearances in mind, the low-profile body tucks neatly against the centre section without fouling compressor housings or actuator brackets common on small-frame applications.

Canadian-Made Quality

Manufactured by BSI Inc. right here in Canada, this 65mm billet 10AN turbo drain flange small frame is built to a standard that imported alternatives rarely meet — and ships quickly to builders across North America.

Built right, priced right, and ready to drop into your next turbo project — because your oil drain deserves the same attention as everything else in your build.

FAQ

What turbochargers is this drain flange designed for?

It is engineered for small-frame turbocharger centre sections, including popular GT28, GT30, GT35, HX30, and HX35 series units with a 65mm bolt pattern.

Does this flange require extra adapters?

No. The AN-10 drain port is machined directly into the flange body, so your oil return line connects straight without stacking extra fittings or adapters at the flange.

What is the flange made from?

It is CNC-machined from solid billet aluminium for rigidity and a leak-free sealing surface.

How does this flange seal against the turbo?

The machined mating face is held to tight tolerances for a reliable O-ring seal against the turbo centre cartridge.

Is this turbo drain flange made in Canada?

Yes. It is manufactured by BSI Inc. in Canada and ships quickly to builders across North America.