Dorman 47083 Vacuum Reservoir

Vacuum Reservoir for OE-Style Vacuum Storage

This Dorman vacuum reservoir is built to match the fit and function of the original vacuum storage canister on specified vehicles. It uses a plastic body with a black finish and is engineered for reliable vacuum retention in HVAC and vacuum-operated systems.

Key Features

• Direct replacement vacuum reservoir for specified applications
• Plastic construction with black color/finish
• 4 in. diameter and 4.5 in. height for OE-style packaging
• One hose connector and one vacuum port with 0.1875 in. diameter
• Designed for vacuum storage in HVAC and tailpipe vacuum tank applications
• Part number 47083 for easy identification

Detailed Description

Dorman 47083 is a vacuum reservoir designed for vehicles that rely on stored vacuum for system operation. It is used on a wide range of Chevrolet, GMC, Cadillac, and Corvette applications, including 2003-2019 Chevrolet Express 2500 and Express 3500, 2003-2019 GMC Savana 2500 and Savana 3500, 2003-2014 Chevrolet Express 1500 and GMC Savana 1500, plus 2006-2013 Chevrolet Corvette and 2006-2009 Cadillac XLR. It also serves earlier applications such as Chevrolet Astro, GMC Safari, Impala, Lumina, Monte Carlo, and S10-based trucks and SUVs. This part cross-references GM 15973049 for the same application.

What It Helps Address

• Loss of vacuum storage for HVAC control systems
• Vacuum-related HVAC mode or door operation issues
• Cracked, leaking, or damaged original reservoir canisters
• Vacuum supply problems on tailpipe vacuum tank applications
• Fitment issues when replacing an aging OE reservoir

Installation Notes and Tips

Verify the reservoir shape, port size, and mounting location against the original part before installation. This vacuum reservoir uses one vacuum port and one hose connector, so confirm hose routing and connection diameter during replacement. Fits 2003-2019 Chevrolet Express 2500, N/A; Fits 2003-2019 Chevrolet Express 3500, N/A; Fits 2003-2019 GMC Savana 2500, N/A; Fits 2003-2019 GMC Savana 3500, N/A; Fits 2003-2014 Chevrolet Express 1500, N/A; Fits 2003-2014 GMC Savana 1500, N/A; Fits 2006-2013 Chevrolet Corvette, N/A; Fits 2006-2009 Cadillac XLR, N/A; Fits 1996-2005 Chevrolet Astro, N/A; Fits 1996-2005 GMC Safari, N/A; Fits 2000-2001 Chevrolet Impala, N/A; Fits 2000-2001 Chevrolet Lumina, N/A; Fits 2000-2001 Chevrolet Monte Carlo, N/A; Fits 1998-1999 Chevrolet C1500 Suburban, N/A; Fits 1998-1999 Chevrolet C2500 Suburban, N/A; Fits 1998-1999 Chevrolet K1500 Suburban, N/A; Fits 1998-1999 Chevrolet K2500 Suburban, N/A; Fits 1998-1999 GMC C1500 Suburban, N/A; Fits 1998-1999 GMC C2500 Suburban, N/A; Fits 1998-1999 GMC K1500 Suburban, N/A; Fits 1998-1999 GMC K2500 Suburban, N/A; Fits 1994-1997 Chevrolet Blazer, N/A; Fits 1994-1997 Chevrolet S10, N/A; Fits 1994-1997 GMC Jimmy, N/A; Fits 1994-1997 GMC Sonoma, N/A; Fits 1994 Chevrolet S10 Blazer, N/A.

Quality Assurance

Dorman designs this reservoir to match original part fit and function using quality materials for dependable performance in the specified applications.