Turbo OIL DRAIN flange bolt size?

[TR Custom Parts]

Just wondering if the bolts used for the turbo OIL DRAIN flange on a stock turbo is the same as aftermarket units???? Been a while since I have seen a stock turbo. What size are they IF different??

 

[DCVING 6]

my CPT-61bb was M8x1.25 which I believe is the stock size. Some of the bigger PTE turbos use I believe a 3/8x?

 

[TR Custom Parts]

My lil ol TA49 has 3/8 16 bolts, just wanted to make sure I supply the correct bolts with my turbo drain kit.

 

[BlackMetal]

My lil ol TA49 has 3/8 16 bolts, just wanted to make sure I supply the correct bolts with my turbo drain kit.

Yup when I upgraded my turbo I was a little ticked off to find out the drain bolts are not the same as stock. Ended up being the 3/8x16 like yours. Probably won't be easy to make sure you send everyone the correct bolts.

 

[DCVING 6]

my CPT-61bb was M8x1.25 which I believe is the stock size. Some of the bigger PTE turbos use I believe a 3/8x?

To elaborate on my install a little bit...

I ended up using a spare pair of studs that hold the throttlebody to the plenum for the turbo oil drain line. That was by far, the easiest install I've ever done.

 

[BlackMetal]

Yup studs do help a lot.