Blend door USA
Chevy/GMC Delphi HVAC Kit (03-12) Dual Zone with Rear Vents – Blend Door USA
Chevy/GMC Delphi HVAC Kit (03-12) Dual Zone with Rear Vents – Blend Door USA
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Your 2003–2012 Chevy or GMC’s dual-zone heat is stuck on one temperature, the A/C won’t respond, or you’re hearing a clicking noise from behind the dash. The plastic blend doors inside your Delphi HVAC box have cracked or broken — a known failure on this platform. This kit from Blend Door USA replaces them permanently with CNC-machined solid aluminum doors that won’t crack again.
Fits: 2003–2012 Chevy Silverado, Tahoe, Suburban, Avalanche & GMC Sierra, Yukon, Yukon XL — Delphi HVAC box, Dual Zone, with rear vents on the back of the center console
⚠️ How to confirm you have the right kit:
This kit is for vehicles with rear vents on the back side of the console. Look through your glove box opening — the Delphi box appearance is shown in the product images. VIN number does not guarantee a match — visual confirmation through the glove box is the only reliable method. If you have a Visteon box (no structural ribs, bolted in two pieces), see our Visteon kit instead.
Why replace it?
- Driver or passenger heat stuck at one temperature
- Clicking or ticking noise from behind the dash
- Dual-zone temperature control unresponsive or intermittent
- Plastic OEM doors cracked or broken
What’s included:
- Complete set of CNC-machined solid aluminum blend door replacements
- Poly ether open-cell foam with 3M backing
- Installation drivers (secured in the doors with clear tape — as shown in product images)
CNC-machined solid aluminum. Lifetime guarantee. Made in Michigan by Blend Door USA.