2003 GMC Sierra 3500 Auto Trans Extension Housing Seal
Browse our online catalogue to find original replacement Auto Trans Extension Housing Seals specifically designed to fit a 2003 GMC Sierra 3500.



2003 GMC Sierra 3500 Auto Trans Extension Housing Seal
$20.48
Limited Stock
Condition: New
Ships: Same or Next Business Day
Pick-Up: Same Business Day (Order before 11:30am)
Pick-Up: Same Business Day (Order before 11:30am)
Rear
Required Per Vehicle: 1
Fits: 2003 GMC Sierra 3500
Equipped With:
Transmission Code: 1000/M74;
Transmission Code: 1000/M74;
Vehicle Fitment Notes:
2.563 Shaft Diameter 3.623 Bore Diameter 3.628 Outside Diameter Seal 0.469 Width
2.563 Shaft Diameter 3.623 Bore Diameter 3.628 Outside Diameter Seal 0.469 Width

2003 GMC Sierra 3500 Auto Trans Extension Housing Seal
$44.60
Call For Availability
Condition: New
Required Per Vehicle: 1
Fits: 2003 GMC Sierra 3500
Equipped With:
Transmission Control Type: Automatic; Transmission Code: 4L80-E; Transmission Speeds: 4;
Transmission Control Type: Automatic; Transmission Code: 4L80-E; Transmission Speeds: 4;
Vehicle Fitment Notes:
Over 15,000 (lb) Gross Vehicle Weight (GVW) without Boot
Over 15,000 (lb) Gross Vehicle Weight (GVW) without Boot

2003 GMC Sierra 3500 Auto Trans Extension Housing Seal
$24.51
Call For Availability
Condition: New
Required Per Vehicle: 1
Fits: 2003 GMC Sierra 3500
Equipped With:
Transmission Control Type: Automatic; Transmission Speeds: 5;
Transmission Control Type: Automatic; Transmission Speeds: 5;
Vehicle Fitment Notes:
with 1000 Transmission Code with Allison Transmission
with 1000 Transmission Code with Allison Transmission

2003 GMC Sierra 3500 Auto Trans Extension Housing Seal
$26.31
Call For Availability
Condition: New
Required Per Vehicle: 1
Fits: 2003 GMC Sierra 3500
Equipped With:
Transmission Control Type: Automatic; Transmission Code: 4L80-E; Transmission Speeds: 4;
Transmission Control Type: Automatic; Transmission Code: 4L80-E; Transmission Speeds: 4;
Vehicle Fitment Notes:
Boot Type with 4 Gears 1.500 (in) Width
Boot Type with 4 Gears 1.500 (in) Width

2003 GMC Sierra 3500 Auto Trans Extension Housing Seal
$8.44
Call For Availability
Condition: New
Required Per Vehicle: 1
Fits: 2003 GMC Sierra 3500
Equipped With:
Transmission Control Type: Automatic; Transmission Speeds: 4;
Transmission Control Type: Automatic; Transmission Speeds: 4;
Vehicle Fitment Notes:
with 4L65-E Transmission Code without Boot with GMC Transmission
with 4L65-E Transmission Code without Boot with GMC Transmission

2003 GMC Sierra 3500 Auto Trans Extension Housing Seal
$7.96
Call For Availability
Condition: New
Required Per Vehicle: 1
Fits: 2003 GMC Sierra 3500
Equipped With:
Transmission Control Type: Automatic; Transmission Code: 4L80-E; Transmission Speeds: 4;
Transmission Control Type: Automatic; Transmission Code: 4L80-E; Transmission Speeds: 4;
Vehicle Fitment Notes:
Under 15,000 (lb) Gross Vehicle Weight (GVW) without Boot
Under 15,000 (lb) Gross Vehicle Weight (GVW) without Boot




2003 GMC Sierra 3500 Auto Trans Extension Housing Seal
$28.44
$25.32
Out of Stock
Condition: New
Required Per Vehicle: 1
Made in USA
Fits: 2003 GMC Sierra 3500
Equipped With:
Transmission Code: 4L80-E;
Transmission Code: 4L80-E;
Vehicle Fitment Notes:
w/ Boot Width: 1.625" Outer Diameter: 3.125" Inner Diameter: 2.0625"
w/ Boot Width: 1.625" Outer Diameter: 3.125" Inner Diameter: 2.0625"

2003 GMC Sierra 3500 Auto Trans Extension Housing Seal
$22.34
Out of Stock
Condition: New
Required Per Vehicle: 1
Made in USA
Fits: 2003 GMC Sierra 3500
Equipped With:
Transmission Code: 1000/M74; Transmission Speeds: 5;
Transmission Code: 1000/M74; Transmission Speeds: 5;