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Duramax CCV Reroute Kit:Top 3 Options and How to Choose
November 3, 2025

Duramax CCV Reroute Kit:Top 3 Options and How to Choose

If you own a Duramax diesel truck, you already know the importance of maintaining a clean and efficient engine. One common upgrade among Duramax owners is installing a CCV reroute kit—also known as a PCV reroute kit. This modification helps redirect crankcase vapors away from your intake system, reducing oil contamination and improving overall engine performance.

In this guide, we’ll introduce you to the top three Duramax CCV reroute kits available on the market, explain how to choose the right one for your truck, and help you understand the benefits of making the switch.

What Is a CCV Reroute Kit and Why Do You Need One?

The Crankcase Ventilation (CCV) system—often referred to as the Positive Crankcase Ventilation (PCV) system—is designed to manage blow-by gases produced during combustion. Over time, these gases can cause oil sludge, turbo lag, and even reduce engine life.

A Duramax CCV reroute kit reroutes these harmful vapors away from the intake and out of the engine bay, helping to:

  • Reduce oil contamination
  • Improve throttle response
  • Extend the life of your turbo and intercooler
  • Minimize smoke and odor

Whether you’re driving an LBZ, LML, or LLY Duramax, a reroute kit is a smart investment for long-term engine health.

Top 3 Duramax CCV Reroute Kits

1. 2004-2010 6.6L GMC Chevrolet Duramax CCV PCV Reroute Ventilation Kit

This kit is perfect for LBZ and earlier models. It includes all necessary components for a clean and professional reroute installation. The kit features durable hoses, a filtered vent cap, and all required clamps and fittings.

LBZ Duramax CCV reroute kit for 2004-2010 models improves crankcase ventilation

Why choose this kit?

It’s ideal for daily drivers and performance trucks alike. By venting crankcase pressure effectively, it helps maintain optimal turbo performance and reduces the risk of oil leaks.

Best For: LBZ owners wanting a complete, permanent solution to oil vapor issues.

2. 2011-2016 6.6L Chevy Duramax LML CCV PCV ReRoute Delete Kit

Specifically designed for LML Duramax engines, this kit addresses the unique ventilation needs of newer models. It’s a complete delete kit that improves airflow and reduces the chance of turbo failure due to oil saturation.

LML Duramax PCV reroute kit for 2011-2016 reduces oil blow-by and turbo wear

Key Features:

  • LML-specific engineering for perfect fitment
  • Advanced filtration media for superior oil separation
  • Corrosion-resistant materials for durability
  • Complete delete kit for comprehensive protection
  • Professional-grade components

Performance Benefits:

  • Solves LML-specific ventilation issues
  • Reduces emissions system contamination
  • Improves turbo response and longevity
  • Maintains factory-like reliability

Best For: LML owners needing model-specific ventilation solutions with enhanced filtration.

3. 2004-2005 6.6L Duramax LLY CCV PCV Reroute & EGR Delete Kit

This versatile kit not only reroutes crankcase vapors but also includes an EGR delete—making it a two-in-one performance upgrade for LLY Duramax trucks. It’s perfect for those wanting to tackle both ventilation and exhaust gas recirculation issues in one go.

LLY Duramax CCV reroute and EGR delete combo kit for 2004-2005 models

Key Features:

  • Combined PCV and EGR solution in one kit
  • LLY-specific component design
  • High-temperature resistant materials
  • Complete hardware package included
  • Easy-to-follow installation guide

Performance Benefits:

  • Addresses both ventilation and EGR issues
  • Reduces overall system complexity
  • Improves engine breathing and efficiency
  • Prevents multiple common failure points

Best For: LLY owners wanting to solve both PCV and EGR-related problems simultaneously.

Ready to Upgrade? Shop at Seguler

At Seguler, we specialize in premium diesel truck parts, including the top-rated Duramax CCV reroute kits mentioned above. Each kit is built to last and comes with everything you need for a smooth installation.

Browse our collection and order yours today at www.seguler.com

Upgrade your Duramax’s ventilation system and enjoy a cleaner, more responsive engine.

FAQs About Duramax CCV Reroute Kits

Q1: What is the main purpose of an LBZ PCV reroute kit?

A1: The primary purpose is to redirect crankcase vapors away from the intake system, preventing oil contamination of the intercooler, turbocharger, and intake components.

Q2: Will a PCV reroute kit improve my fuel economy?

A2: Yes, most users report 1-2 MPG improvements due to reduced intake restriction and more efficient combustion from cleaner intake air.

Q3: Are PCV reroute kits legal for street use?

A3: Most basic reroute kits are acceptable, but complete delete systems may have restrictions. Always check local emissions regulations before installation.

Q4: How difficult is installation for a beginner?

A4: Most kits require intermediate mechanical skills. Beginners should consider professional installation or seek assistance from experienced mechanics.

Q5: Can I install a PCV reroute kit myself?

A5: Yes, with proper tools and mechanical knowledge. Most kits include detailed instructions and can be completed in 3-4 hours.

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