3/4″ (-12) DSM Turbo Oil Drain Kit- Holset, BW, PTE


Large Diameter 3/4″ (-12 equivalent) oil drain kit for journal bearing turbos that require ample oil flow. Since our first (non bolt-on) turbo swap, we’ve been salvaging OEM Holset drain lines to make a true 3/4″ drain line. And while AN fittings and lines work, we’ve always preferred a simple clamped hose with fittings that are much closer to an actual 3/4″ ID than a comparable AN fitting. Not being able to find many options out there, we sent some flange files to be cut and made a mini bead roller in order to make our own refined kit. We hope it makes things as easy for you as it has for us!

*Turbo drain flange not compatible or intended for MHI bolt-on turbos. 2″ center to center turbo drain flange for most non bolt-on turbos.

Out of stock


The turbo fitting has been slightly angled towards the pan fitting, giving it a more direct route while also allowing it to better clear the 1g front motor mount bracket for most standard placement/bottom mount turbo combinations- especially for turbos with longer center section lengths such as Borg Warner, Holset, and PTE. The oil pan fitting is also angled up slightly to promote more oil drainage out of the line.

Heat sleeve/shielding is recommended near any exhaust components.


-3/4″ stainless turbo drain fitting, angled away from compressor cover and towards the oil pan fitting
-3/4″ stainless fitting that bolts to the factory DSM oil pan, angled up for better drainage
-12″ of 3/4″ high temp oil resistant push on hose (cut to length by user, usually between 9 and 10″)
-Two stainless oil pan bolts with self sealing o-rings under the bolt heads
-Two stainless turbo bolts
-Three stainless hose clamps
* Does not include gaskets
*Not compatible/intended for MHI bolt-on turbos with a 1.5″ center to center turbo drain flange


After receiving the completed worksheet below, we will review it and send an invoice within 1-2 business days.

If you are interested in purchasing over five (5), we will contact you directly after submission of the form.



3/4″ (-12) DSM Turbo Oil Drain Kit- Holset, BW, PTE