

SPOOLOGIC Turbo Oil Drain Line
SKU # : SL-350-031
2004.5-2010 Chevy GMC 6.6L Duramax LLY LBZ LMM
2006-2010 Chevy GMC Vans 6.6L Duramax LLY LMM
- In Stock
- Calculated at checkout
- ITEM NO : 1119
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The SPOOLOGIC Turbo Oil Drain Line SL-350-031 returns oil from the turbocharger to the engine on 2004.5–2010 Chevrolet Silverado 2500 3500 and GMC Sierra 2500 3500 trucks with the 6.6L Duramax LLY, LBZ and LMM engines.
Features
- Returns oil from the turbocharger to the engine
- Formed oil-return tube with a bellows section and bolted flanges
What’s Included
- 1 turbo oil drain line
- 2 flange gaskets
- 2 mounting bolts
- 2 studs
- 2 nuts
Fitment
- 2004.5-2005 Chevrolet Silverado GMC Sierra 2500 3500 6.6L Duramax LLY
- 2006 Chevrolet Silverado GMC Sierra 2500 3500 6.6L Duramax LLY
- 2006-2007 Chevrolet Silverado GMC Sierra 2500 3500 6.6L Duramax LBZ
- 2007.5-2010 Chevrolet Silverado GMC Sierra 2500 3500 6.6L Duramax LMM
- 2006-2007 Chevrolet Express GMC Savana 2500 3500 6.6L Duramax LLY
- 2007.5-2008 Chevrolet Express GMC Savana 2500 3500 6.6L Duramax LMM
- 2009-2010 Chevrolet Express GMC Savana 2500 3500 4500 6.6L Duramax LMM
OEM and Manufacturer References
- GM OEM 97303638 — cross-reference
1-Year Limited Warranty
Every SPOOLOGIC Turbo Oil Drain Line carries a 1-Year Limited Warranty against defects in materials and workmanship for the original purchaser from the original purchase date. Coverage excludes damage caused by improper installation, contaminated or damaged connections, reused installation seals, and physical damage. Claims require dated proof of purchase. Contact SPOOLOGIC for return authorization before shipping the component for inspection. If inspection confirms a covered defect, SPOOLOGIC will replace the covered component. Customers pay warranty shipping in both directions; labor and related costs are not covered. See the SPOOLOGIC Warranty Policy for full terms.
See why Customers Love Spoologic
4/18/2026

Works
Measurements were slightly different but I made it work.
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