Duramax Turbo Oil Return Pipe | PPE 116005057

Replace a rusted or leaking factory turbo oil drain on a 2004.5–2010 Duramax with a 304 stainless pipe. PPE 116005057 is the OEM-style oil return tube for LLY, LBZ, and LMM trucks running a stock-height Garrett turbo. Factory mild-steel drains corrode and weep oil onto the engine. This one-piece stainless pipe uses a corrugated bellow for alignment and bolts on like the original drain.

Key features

• 304 stainless steel construction
• Corrugated bellow for fit and flex
• OEM-style bolt-on install
• Resists rust better than the factory mild-steel pipe
• Made for stock-height OEM turbos
• Helps restore a leak-free oil drain from the turbo to the block

Fitment

• 2004.5–2005 GM 6.6L Duramax LLY
• 2006–2007 GM 6.6L Duramax LBZ
• 2007.5–2010 GM 6.6L Duramax LMM
• Chevrolet Silverado 2500HD / 3500HD
• GMC Sierra 2500HD / 3500HD

Does not fit 2001–2004 LB7 (use PPE 116005056). Does not fit 2011–2016 LML (use PPE 116005058). Aftermarket turbos mounted higher than stock need the longer PPE pipes such as 116005054 or 116005055.

What’s in the box

• PPE 304 stainless turbo oil return pipe

Gaskets, banjo hardware, and mounting bolts are typically reused or sold separately.

Notes & specs

• Brand/part number: PPE 116005057
• GTIN: 840171234855
• Material: 304 stainless steel
• Style: OEM-length return pipe
• Related LB7 pipe: 116005056
• Related LML pipe: 116005058
• Related tall aftermarket pipes: 116005054 / 116005055
• Warranty: 1-year limited

Clean the block and turbo flanges, replace crushed gaskets if they are damaged, and check for leaks after first start. If a 2004.5–2010 Duramax stock turbo is dripping oil from the drain tube, PPE 116005057 is the stainless OEM-style return pipe for that charger.