SPOOLOGIC Crankcase Ventilation (CCV) Oil Separator Line

The SPOOLOGIC Crankcase Ventilation CCV Oil Separator Line SL-350-027 routes crankcase vapor through the oil-separator system on 2025–2026 Chevrolet Silverado 2500 3500 and GMC Sierra 2500 3500 trucks with the 6.6L Duramax L5P engine.

Features

• Routes crankcase vapor through the oil-separator system
• Formed CCV line with a braided flexible section and bolted flange

What’s Included

• 1 CCV oil separator line assembly
• 1 flange gasket
• 2 flange bolts

Fitment

• 2025-2026 Chevrolet Silverado GMC Sierra 2500 3500 6.6L Duramax L5P
• 2025-2026 Chevrolet Silverado 4500 5500 6500 6.6L Duramax L5D

OEM and Manufacturer References

• GM OEM 12739532 — cross-reference

1-Year Limited Warranty

Every SPOOLOGIC Crankcase Ventilation CCV Oil Separator 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.