Lunwag PCV Valve Hose Assembly for 1.4L Chevy & Buick (Cruze/Sonic/Trax/Encore) — Direct-Fit with Bypass Valves

Replacement Lunwag PCV valve hose assembly with bypass valves engineered to restore proper crankcase ventilation for 1.4L Chevy and Buick engines.

If your 1.4L Cruze, Sonic, Trax or Encore has rough idle, oil seepage around the valve cover, or a check engine light tied to the PCV system, this complete Lunwag hose assembly replaces worn OEM tubing and bypass components. Built to match original fitment and replace part numbers 25193343, 55568267 and 46829, the kit delivers a direct swap that avoids custom plumbing or adaptors.

How does this Lunwag assembly fix idling and acceleration problems?

A failing PCV hose or clogged bypass path can let crankcase pressure fluctuate or allow unmetered air into the intake, causing unstable idle and weak throttle response. Installing the Lunwag assembly restores intended ventilation flow and seals leaks that upset engine air-fuel balance.

• Direct-fit replacement for OEM venting parts to stop vacuum leaks.
• Bypass valves maintain correct pressure under different engine loads.
• Oil-resistant materials reduce degradation that causes cracks and leaks.

Will this part physically fit my vehicle without modification?

Yes — the assembly is manufactured to the same dimensions and connection points as the original equipment it replaces. It's designed specifically for GM 1.4L applications in the listed Cruze, Sonic, Trax and Encore model years so you won’t need adapters or cutting.

• Exact OEM replacement for part numbers 25193343, 55568267, 46829.
• Compatibility with 2011–2016 Cruze, 2016 Cruze Limited, 2012–2019 Sonic, 2013–2020 Trax, 2013–2019 Encore (1.4L).
• Includes full hose assembly—no extra components required.

How difficult is installation and what tools are required?

The Lunwag PCV hose is built for plug-and-play installation and typically installs in minutes. Most owners can fit it with basic access to the engine bay and no specialty tools.

• Tool-free pressure-fit ends; simply push into factory ports.
• No cutting, splicing or hose clamps usually required.
• Straightforward service for DIY mechanics or quick replacement by a technician.

What materials and protections does this hose offer compared to worn OEM parts?

This assembly uses heat- and oil-resistant materials to withstand engine conditions that cause stock hoses to harden, crack, or collapse. The durable construction helps maintain ventilation integrity longer than degraded OEM tubing.

• Oil-resistant polymers prevent softening and swelling from engine vapors.
• Heat-stable components resist embrittlement near the valve cover.
• Bypass valves designed for consistent operation across temperature ranges.

Who is this for: This Lunwag PCV valve hose assembly is aimed at owners and independent shops servicing GM 1.4L engines—especially drivers of Chevy Cruze, Cruze Limited, Sonic, Trax and Buick Encore models who need a reliable, direct-fit replacement for failing PCV hardware. Choose this part if you want an OEM-matching swap that addresses rough idle, oil leaks around the valve cover, or PCV-related engine codes without extra modification or lengthy downtime.