Dorman 645-905 EGR Solenoid Valve Connector

Dorman 645-905 EGR Solenoid Valve Connector

Dorman 645-905 is an Exhaust Gas Recirculation (EGR) solenoid valve connector built to match the original connector’s appearance and function on specified vehicles. It uses a plastic connector body with copper alloy female terminals for a direct electrical repair on 5-wire applications.

• OE-style EGR solenoid valve connector for specified applications
• Plastic connector housing with copper alloy terminals
• Female connector and female terminal design
• 20 AWG connector gauge
• Includes 5 butt connectors for wire repair work
• Cross-references 1P1590 and PT1154 for the same application

Built for EGR Electrical Repair

This Dorman EGR solenoid valve connector is engineered to restore the electrical connection at the EGR solenoid valve where the original plug is damaged, brittle, or no longer making reliable contact. The 17.71-inch overall length gives added reach for repair work, while the 1.37-inch connector length supports a clean replacement on 5-wire systems. It is a direct-fit style connector for many GM and Saturn applications, including Cadillac DTS, Buick Lucerne, Chevrolet Astro, GMC Safari, and Saturn SL2. Part number 645-905 is also listed for a wide range of 1993-2011 vehicles with matching connector requirements.

• Fits 2006-2011 Cadillac DTS, 5 Wire
• Fits 2006-2008 Buick Lucerne, 5 Wire
• Fits 2005-2007 Buick Terraza, 5 Wire
• Fits 2005-2007 Chevrolet Uplander, 5 Wire
• Fits 2005-2006 Pontiac Montana, 5 Wire
• Fits 1994-2005 Buick LeSabre, 5 Wire
• Fits 1995-2005 Chevrolet Astro, 5 Wire
• Fits 1995-2005 GMC Safari, 5 Wire
• Fits 2003-2004 Chevrolet Express 2500, 5 Wire
• Fits 2003-2004 Chevrolet Express 3500, 5 Wire
• Fits 2003-2004 GMC Savana 2500, 5 Wire
• Fits 2003-2004 GMC Savana 3500, 5 Wire
• Fits 2001-2003 Oldsmobile Aurora, 5 Wire
• Fits 1996-1999 Oldsmobile Aurora, 5 Wire
• Fits 1995-2002 Cadillac Eldorado, 5 Wire
• Fits 1993 Cadillac Eldorado, 5 Wire
• Fits 1995-2002 Chevrolet Camaro, 5 Wire
• Fits 1995-2002 Pontiac Firebird, 5 Wire
• Fits 1994-2002 Saturn SC1, 5 Wire
• Fits 1994-2002 Saturn SC2, 5 Wire
• Fits 1994-2002 Saturn SL, 5 Wire
• Fits 1994-2002 Saturn SL1, 5 Wire
• Fits 1994-2002 Saturn SL2, 5 Wire
• Fits 1994-2001 Saturn SW2, 5 Wire
• Fits 1995-1999 Buick Riviera, 5 Wire
• Fits 1994-1999 Chevrolet P30, 5 Wire
• Fits 1994-1999 GMC P3500, 5 Wire
• Fits 1994-1999 Oldsmobile 88, 5 Wire
• Fits 1994-1999 Saturn SW1, 5 Wire
• Fits 1996-1998 Buick Skylark, 5 Wire
• Fits 1996-1998 Chevrolet Cavalier, 5 Wire
• Fits 1996-1998 Oldsmobile Achieva, 5 Wire
• Fits 1998 Pontiac Bonneville, 5 Wire
• Fits 1996-1998 Pontiac Sunfire, 5 Wire
• Fits 1995-1997 Cadillac DeVille, 5 Wire
• Fits 1993 Cadillac DeVille, 5 Wire
• Fits 1995-1997 Cadillac Seville, 5 Wire
• Fits 1993 Cadillac Seville, 5 Wire
• Fits 1994-1996 Buick Park Avenue, 5 Wire
• Fits 1995-1996 Chevrolet G30, 5 Wire
• Fits 1995-1996 GMC G3500, 5 Wire
• Fits 1994-1995 Chevrolet Lumina APV, 5 Wire
• Fits 1994-1995 Oldsmobile Silhouette, 5 Wire
• Fits 1994-1995 Pontiac Trans Sport, 5 Wire
• Fits 1993-1994 Chevrolet Astro, 5 Wire, w/California Emissions; w/Air Conditioning
• Fits 1993-1994 GMC Safari, 5 Wire, w/California Emissions; w/Air Conditioning

Common Problems This Connector Can Address

• Broken or cracked EGR solenoid valve connector housing
• Loose or intermittent electrical contact at the EGR solenoid
• Corroded or heat-damaged connector terminals
• Wiring repair after connector damage during service
• Check engine light concerns related to EGR circuit connection faults

Installation Notes and Tips

Verify the vehicle uses a 5-wire EGR solenoid valve connector before installation. Match the connector shape, terminal layout, and wire gauge to the original part, and inspect the harness for heat damage or corrosion before splicing. Use proper electrical repair practices when joining the supplied butt connectors to maintain a secure connection. Dorman 645-905 is a practical replacement for service work on vehicles such as Chevrolet Astro, GMC Safari, and Cadillac DTS when the original connector is no longer serviceable.

Quality Assurance

Dorman designs this connector to match the original hardware’s appearance and function on listed applications. It is manufactured from quality materials for reliable electrical performance and durability in EGR service.