Should a silicone sealer be used with the O-ring?

Pack of 1

GM Genuine Parts Fuel Sender Seal

GM Part #19420816

ACDelco Part #19420816

About this product

ACDelco GM Original Equipment Fuel Tank Sending Unit O-Rings are GM-recommended replacements for your vehicle's original components. These O-rings help seal out contaminants, and help protect your vehicle's fuel tank sending unit. These original equipment O-rings have been manufactured to fit your GM vehicle, providing the same performance, durability, and service life you expect from General Motors.

Warning WARNING: Cancer and Reproductive Harm - www.P65Warnings.ca.gov

Help seal out contaminants
Help protect fuel tank sending unit
GM-recommended replacement part for your GM vehicle's original factory component
Offering the quality, reliability, and durability of GM OE
Manufactured to GM OE specification for fit, form, and function

ClassificationOE

24 Months/Unlimited Miles Limited Warranty for Parts (plus Labor if installed by a GM dealer)

Please visit our warranty page on Gmparts.com for full warranty details.

Good Maintenance Practices:

The locking ring and seal should be replaced when replacing a fuel pump.
Refer to your Vehicle Owner's manual for additional vehicle maintenance practices.

Model	Body Style	Year(s)
C1500	Extended Cab Pickup	1997, 1998, 1999
C1500	Standard Cab Pickup	1997, 1998, 1999
C1500 Suburban		1998, 1999
C2500	Cab & Chassis	1998, 1999, 2000
C2500	Extended Cab Pickup	1998, 1999, 2000
C2500	Standard Cab Pickup	1998, 1999, 2000
C2500 Suburban		1998, 1999
C3500		1998, 1999, 2000
C3500HD		1998, 1999, 2000, 2001, 2002
C4500 Topkick	Cab & Chassis - Conventional	2003, 2004, 2005, 2006, 2007, 2008, 2009
C4500 Topkick	Cab & Chassis - Crew Cab	2003, 2004, 2005, 2006, 2007, 2008, 2009
C4500 Topkick	Motorhome - Cutaway	2003, 2004, 2005, 2006, 2007, 2008, 2009
C5500 Topkick	Cab & Chassis - Conventional	2003, 2004, 2005, 2006, 2007, 2008, 2009
C5500 Topkick	Cab & Chassis - Crew Cab	2003, 2004, 2005, 2006, 2007, 2008, 2009
C5500 Topkick	Motorhome - Cutaway	2003, 2004, 2005, 2006, 2007, 2008, 2009
C6500 Topkick	Cab & Chassis - Conventional	1997, 1998, 1999, 2000, 2003, 2004, 2005, 2006, 2007, 2008, 2009
C6500 Topkick	Cab & Chassis - Crew Cab	1997, 1998, 1999, 2000, 2003, 2004, 2005, 2006, 2007, 2008, 2009
C6500 Topkick	Cab & Chassis - Cutaway	1997, 1998, 1999, 2000, 2003, 2004, 2005, 2006, 2007, 2008, 2009
C7500 Topkick	Cab & Chassis - Conventional	1997, 1998, 1999, 2000, 2003, 2004, 2005, 2006, 2007, 2008, 2009
C7500 Topkick	Straight Truck - Crew Cab	1997, 1998, 1999, 2000, 2003, 2004, 2005, 2006, 2007, 2008, 2009
C7500 Topkick	Straight Truck - Cutaway	1997, 1998, 1999, 2000, 2003, 2004, 2005, 2006, 2007, 2008, 2009
C7500 Topkick	Straight Truck - Medium Conventional	1997, 1998, 1999, 2000, 2003, 2004, 2005, 2006, 2007, 2008, 2009
C8500 Topkick	Straight Truck - Crew Cab	2003, 2004, 2005, 2006, 2007, 2008, 2009
C8500 Topkick	Straight Truck - Cutaway	2003, 2004, 2005, 2006, 2007, 2008, 2009
C8500 Topkick	Straight Truck - Medium Conventional	2003, 2004, 2005, 2006, 2007, 2008, 2009
Jimmy		1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004
K1500	Extended Cab Pickup	1997, 1998, 1999
K1500	Standard Cab Pickup	1997, 1998, 1999
K1500 Suburban		1998, 1999
K2500	Cab & Chassis	1998, 1999, 2000
K2500	Extended Cab Pickup	1998, 1999, 2000
K2500	Standard Cab Pickup	1998, 1999, 2000
K2500 Suburban		1998, 1999
K3500		1998, 1999, 2000
P3500		1997, 1998, 1999
Safari		1997, 1998, 1999
Savana 1500		1996, 1997, 1998, 1999, 2000, 2001, 2002
Savana 2500		1996, 1997, 1998, 1999, 2000, 2001, 2002
Savana 3500	Cutaway Van	1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016
Savana 3500	Standard Cargo Van	1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016
Savana 3500	Standard Passenger Van	1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016
Savana 4500		2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016
Sonoma		1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004
T6500		2004, 2005, 2006, 2007, 2008, 2009
T7500		2004, 2005, 2006, 2007, 2008, 2009
Yukon		1998, 1999

GM Genuine Parts Fuel Sender Seal

GM Part #19420816

ACDelco Part #19420816

MSRP$34.89^*

ACDelco GM Original Equipment Fuel Tank Sending Unit O-Rings are GM-recommended replacements for your vehicle's original components.

Help seal out contaminants
Help protect fuel tank sending unit
GM-recommended replacement part for your GM vehicle's original factory component
Offering the quality, reliability, and durability of GM OE
Manufactured to GM OE specification for fit, form, and function

Ship to dealership

Free

Ship to home

Pack of 1

About this product

Warning WARNING: Cancer and Reproductive Harm - www.P65Warnings.ca.gov

Help seal out contaminants
Help protect fuel tank sending unit
GM-recommended replacement part for your GM vehicle's original factory component
Offering the quality, reliability, and durability of GM OE
Manufactured to GM OE specification for fit, form, and function

ClassificationOE

24 Months/Unlimited Miles Limited Warranty for Parts (plus Labor if installed by a GM dealer)

Please visit our warranty page on Gmparts.com for full warranty details.

Good Maintenance Practices:

The locking ring and seal should be replaced when replacing a fuel pump.
Refer to your Vehicle Owner's manual for additional vehicle maintenance practices.

Model	Body Style	Year(s)
C1500	Extended Cab Pickup	1997, 1998, 1999
C1500	Standard Cab Pickup	1997, 1998, 1999
C1500 Suburban		1998, 1999
C2500	Cab & Chassis	1998, 1999, 2000
C2500	Extended Cab Pickup	1998, 1999, 2000
C2500	Standard Cab Pickup	1998, 1999, 2000
C2500 Suburban		1998, 1999
C3500		1998, 1999, 2000
C3500HD		1998, 1999, 2000, 2001, 2002
C4500 Topkick	Cab & Chassis - Conventional	2003, 2004, 2005, 2006, 2007, 2008, 2009
C4500 Topkick	Cab & Chassis - Crew Cab	2003, 2004, 2005, 2006, 2007, 2008, 2009
C4500 Topkick	Motorhome - Cutaway	2003, 2004, 2005, 2006, 2007, 2008, 2009
C5500 Topkick	Cab & Chassis - Conventional	2003, 2004, 2005, 2006, 2007, 2008, 2009
C5500 Topkick	Cab & Chassis - Crew Cab	2003, 2004, 2005, 2006, 2007, 2008, 2009
C5500 Topkick	Motorhome - Cutaway	2003, 2004, 2005, 2006, 2007, 2008, 2009
C6500 Topkick	Cab & Chassis - Conventional	1997, 1998, 1999, 2000, 2003, 2004, 2005, 2006, 2007, 2008, 2009
C6500 Topkick	Cab & Chassis - Crew Cab	1997, 1998, 1999, 2000, 2003, 2004, 2005, 2006, 2007, 2008, 2009
C6500 Topkick	Cab & Chassis - Cutaway	1997, 1998, 1999, 2000, 2003, 2004, 2005, 2006, 2007, 2008, 2009
C7500 Topkick	Cab & Chassis - Conventional	1997, 1998, 1999, 2000, 2003, 2004, 2005, 2006, 2007, 2008, 2009
C7500 Topkick	Straight Truck - Crew Cab	1997, 1998, 1999, 2000, 2003, 2004, 2005, 2006, 2007, 2008, 2009
C7500 Topkick	Straight Truck - Cutaway	1997, 1998, 1999, 2000, 2003, 2004, 2005, 2006, 2007, 2008, 2009
C7500 Topkick	Straight Truck - Medium Conventional	1997, 1998, 1999, 2000, 2003, 2004, 2005, 2006, 2007, 2008, 2009
C8500 Topkick	Straight Truck - Crew Cab	2003, 2004, 2005, 2006, 2007, 2008, 2009
C8500 Topkick	Straight Truck - Cutaway	2003, 2004, 2005, 2006, 2007, 2008, 2009
C8500 Topkick	Straight Truck - Medium Conventional	2003, 2004, 2005, 2006, 2007, 2008, 2009
Jimmy		1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004
K1500	Extended Cab Pickup	1997, 1998, 1999
K1500	Standard Cab Pickup	1997, 1998, 1999
K1500 Suburban		1998, 1999
K2500	Cab & Chassis	1998, 1999, 2000
K2500	Extended Cab Pickup	1998, 1999, 2000
K2500	Standard Cab Pickup	1998, 1999, 2000
K2500 Suburban		1998, 1999
K3500		1998, 1999, 2000
P3500		1997, 1998, 1999
Safari		1997, 1998, 1999
Savana 1500		1996, 1997, 1998, 1999, 2000, 2001, 2002
Savana 2500		1996, 1997, 1998, 1999, 2000, 2001, 2002
Savana 3500	Cutaway Van	1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016
Savana 3500	Standard Cargo Van	1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016
Savana 3500	Standard Passenger Van	1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016
Savana 4500		2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016
Sonoma		1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004
T6500		2004, 2005, 2006, 2007, 2008, 2009
T7500		2004, 2005, 2006, 2007, 2008, 2009
Yukon		1998, 1999

Frequently Asked Questions

No. A sealer is not needed for a leak free seal.

GM Genuine Parts Fuel Sender Seal

About this product

Product details

Specifications

Warranty

Maintenance

Good Maintenance Practices:

Fits these vehicles

GM Genuine Parts Fuel Sender Seal

About this product

Product details

Specifications

Warranty

Maintenance

Good Maintenance Practices:

Fits these vehicles

Frequently Asked Questions

Should a silicone sealer be used with the O-ring?