Dorman 800-409 | HVAC Heater Hose Connector

Part Number
Coolant Connector - Inlet/Outlet 3/4In. Tube x 5/8In. Hose

Fits: Buick Rainier, Cadillac DeVille, Cadillac Escalade, Cadillac Escalade ESV, Cadillac Escalade EXT, Cadillac Seville, Chevrolet Astro, Chevrolet Avalanche, Chevrolet Avalanche 1500, Chevrolet Avalanche 2500, Chevrolet Blazer, Chevrolet C1500, Chevrolet Express 2500, Chevrolet Express 3500, Chevrolet Express 4500, Chevrolet K1500, Chevrolet Lumina APV, Chevrolet Malibu, Chevrolet S10, Chevrolet S10 Blazer, Chevrolet Silverado 1500, Chevrolet Silverado 1500 HD, Chevrolet Silverado 1500 HD Classic, Chevrolet Silverado 2500, Chevrolet Silverado 2500 HD, Chevrolet Silverado 3500, Chevrolet Silverado 3500 Classic, Chevrolet Silverado 3500 HD, Chevrolet Suburban, Chevrolet Suburban 1500, Chevrolet Suburban 2500, Chevrolet Tahoe, Chevrolet Trailblazer, Chevrolet Venture, Ford E-150 Econoline, Ford E-350 Club Wagon, Ford E-450 Super Duty, Ford E-550 Econoline Super Duty

Special Price $11.00 Regular Price $14.99
In stock
Free Shipping
Estimated Ship Date: 1 Business Day or Less

Made of quality materials, this HVAC heater hose connector matches the fit and function of an original equipment connector to restore leak-free performance.

BRAND: Dorman - OE Solutions


  • Quality replacement - this heater hose connector matches the fit and function of the original equipment connector
  • HVAC, Heater, Hose, Connector, Air Conditioning, Heater, Heat, A/C, Hoses
  • Cost-effective solution - offers original equipment quality at competitive price
  • Coolant Connector - Inlet/Outlet 3/4In. Tube x 5/8In. Hose
  • 2014-93, 1991-90, 1982, 1970
  • Durable construction - this heater hose connector is made of quality materials for a precise fit and leak-free durability
  • Performance tested - this connector has been rigorously pressure tested to ensure reliable performance


End 1 Outside Diameter1.33
End 1 TypeQuick Disconnect
End 2 Outside Diameter0.689
End 2 TypeHose Barb
Fitting AngleStraight
Fitting Attachment End Type 1Quick Disconnect
Fitting Attachment End Type 2Hose Barb
Fitting Size End 1 (in)0.75 In
Fitting Size End 2 (in)0.625 in
Package Contents1 Connector
Quick Connect SystemYes



  • NEEDA PARTS: 905-014
  • General Motors: 15834773

Customer Questions
Can I use Dorman parts to replace OEM parts?
Yes, Dorman parts can often be used as replacements for OEM parts, but it is important to carefully compare specifications and ensure compatibility.
How do I install Dorman shift linkage bushing?
To install a Dorman shift linkage bushing, first locate the old bushing and remove it if necessary. Apply lubricant to the Dorman bushing and slide it onto the shift linkage, tapping it into place with a soft tool until fully seated. Check the alignment and function of the shift linkage after installation.
Where is Dorman manufactured?
Dorman is a global automotive parts supplier with manufacturing facilities in the United States, Mexico, Canada, China, and India. Its headquarters and largest manufacturing facility are located in Colmar, Pennsylvania, USA.
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