FITMENT
- 2017–2024 Chevrolet Silverado / GMC Sierra Duramax L5P 2500HD & 3500HD.
- Does not fit 3500/4500/5500 Cab & Chassis.
DESCRIPTION
Product Overview
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Oily blow-by recirculation creates ongoing maintenance issues and performance degradation on L5P Duramax trucks. The stock CCV system constantly feeds oil vapor back through the turbo inlet, pooling heavy residue in the intercooler, weakening charge-pipe boots, and caking intake valves in power-robbing carbon sludge.
- This complete L5P Duramax CCV Reroute Kit bypasses the factory crankcase loop to protect your engine’s breathing system. By venting blow-by gases away from incoming air, it prevents oil contamination throughout the intercooler and charge pipes, maintains clean turbo blades, and delivers the uninhibited, oil-free air charge your engine needs.
Key Features
- Swap Plastic for CNC 6061-T6 Aluminum: The brittle factory CCV fittings give way to heavy-duty, machine-cut 6061-T6 aluminum that shrugs off extreme engine bay heat.
- Keep the Intake Deposit-Free: Hot oil vapor and sticky soot are stopped at the source, so the intercooler, turbo compressor wheel, and intake valves stay completely clean.
- Stop Intercooler Boots from Blowing Off: Blocking oil mist from the factory CCV keeps the silicone boots from saturating, slipping, and popping off under high boost.
- Feed It Clean, Cold, Dense Air: With only pure oxygen-rich air entering, the air-fuel ratio holds optimal for smoother idle and a quicker-responding throttle.
FAQ
Q: What makes the factory CCV system a known failure point?
A: It relies on fragile plastic components that turn brittle and crack under engine heat, causing boost leaks. On top of that, the recirculated oil mist coats the intercooler boots, causing them to slip and blow off under heavy towing loads.
Q: Does this CCV reroute kit work alongside a factory EGR system?
A: Yes. It’s fully compatible with both stock and deleted trucks. If the factory EGR is still active, this kit is strongly recommended because it stops oily CCV mist from mixing with dry EGR soot into a concrete-like sludge that clogs the intake manifold.
Q: Is it normal to see a small amount of oil coming from the vent hose?
A: Yes. Because this kit vents crankcase pressure to the atmosphere, a small amount of oil mist or dripping from the hose is completely normal — and it confirms the system is successfully keeping oil out of the turbo, intercooler, and intake.
Q: Does this kit set off a Check Engine Light?
A: No. When installed correctly, this kit doesn’t modify any electronic sensors or engine management components, and it’s built to run without triggering a check engine light.
