PANNUOSCS EVAP Canister Vent Solenoid P0449 for Chevy Silverado & GMC Sierra 2004–2010 — 15mm Direct-Fit

The PANNUOSCS EVAP canister vent solenoid P0449 is a direct-fit purge valve replacement engineered to restore proper evaporative emissions control on compatible 2004–2010 Chevy Silverado and GMC Sierra trucks.

If your vehicle has set a P0449 or related evaporative system fault code, this PANNUOSCS purge solenoid offers a cost-effective OEM-compatible substitute. Built to match the original equipment mounting and electrical interface, it helps re-establish correct venting and purge control for the EVAP system when installed with the right vacuum connector size. Check fitment details and OE references before purchase to ensure a smooth swap.

How does this purge valve help fix an EVAP system code?

When the EVAP purge solenoid fails, the engine control module may detect improper vent control and trigger a P0449 code. Replacing the faulty valve with a compatible unit like the PANNUOSCS solenoid restores the solenoid’s ability to open and close under ECU command, resolving incorrect venting behavior.

• Direct-fit design mirrors original mounting points for straightforward replacement.
• Compatible electrical connector and vacuum port size when matched correctly.
• Supports ECU-controlled on/off operation to regulate purge flow.

Will this part fit my Silverado or Sierra model year?

This valve covers a wide range of Chevy and GMC trucks from model years 2004 through 2010, including many 1500, 2500 and 3500 variants and their HD or Classic editions. Verify your truck’s exact year and trim against the fitment list and OE numbers to confirm compatibility.

• Fits Silverado and Sierra 1500, 2500, 3500 across listed years and HD/Classic trims.
• Referenced OE numbers include 911-237, CVS34, 10357992 and others for cross-checking.
• Manufacturer fitment notes clarify which years and variants are supported.

What installation details should I know before buying?

Installation is typically straightforward for anyone comfortable with basic under-hood or underbody work, but confirming vacuum port diameter is critical. PANNUOSCS highlights that P0449 (this product) uses a 15mm vacuum connector, while a different code/product may require 16mm.

• Confirm vacuum connector diameter: this P0449 valve = 15mm.
• Check the connector type and electrical plug on your vehicle prior to ordering.
• No additional programming usually required; clear codes after install to verify repair.

What warranties and support come with this part?

PANNUOSCS provides a 12-month free replacement policy to back the part in the event of defects or early failure. Customer support is available through the seller channel for fitment help or return assistance, helping minimize downtime after purchase.

• 12-month free replacement warranty included with the product.
• Seller support via message for fitment and troubleshooting questions.
• Replace and clear ECU codes after installation to confirm resolution.

Who is this for: This PANNUOSCS EVAP canister vent solenoid is intended for owners and mechanics of 2004–2010 Chevy Silverado and GMC Sierra trucks who need a reliable replacement for an inoperative purge valve. It suits DIY enthusiasts with basic automotive repair skills and professional technicians looking for an OE-referenced spare that matches original mounting and electrical interfaces. Before ordering, ensure your truck’s year/trim appears in the fitment list and that the vacuum port size is 15mm to guarantee proper installation and performance.