2003 GMC Sierra 2500 Alternator
Browse our online catalogue to find original replacement Alternators specifically designed to fit a 2003 GMC Sierra 2500.





2003 GMC Sierra 2500 Alternator
Core charge: $90.00
$116.86
10+ In Stock
Condition: Remanufactured
Ships: Today, Feb. 13th
Pick-Up: Ready in 1 Hour (Order before 4:00 PM)
Pick-Up: Ready in 1 Hour (Order before 4:00 PM)
Required Per Vehicle: 1
Fits: 2003 GMC Sierra 2500
Equipped With:
Engine Base: 6.0L 5967cc 364ci V8 (4.00x3.62; 101.6x92.0);
Engine Base: 6.0L 5967cc 364ci V8 (4.00x3.62; 101.6x92.0);
Vehicle Fitment Notes:
w/ Delco 105 amp alt.
w/ Delco 105 amp alt.





2003 GMC Sierra 2500 Alternator
$193.91
10+ In Stock
Condition: New
Ships: Today, Feb. 13th
Pick-Up: Ready in 1 Hour (Order before 4:00 PM)
Pick-Up: Ready in 1 Hour (Order before 4:00 PM)
Required Per Vehicle: 1
Fits: 2003 GMC Sierra 2500
Vehicle Fitment Notes:
Delco 105 Amp
Delco 105 Amp





2003 GMC Sierra 2500 Alternator
$193.91
10+ In Stock
Condition: New
Ships: Today, Feb. 13th
Pick-Up: Ready in 1 Hour (Order before 4:00 PM)
Pick-Up: Ready in 1 Hour (Order before 4:00 PM)
Required Per Vehicle: 1
Fits: 2003 GMC Sierra 2500
Vehicle Fitment Notes:
Delco AD230, 105A, Std.
Delco AD230, 105A, Std.





2003 GMC Sierra 2500 Alternator
$220.42
10+ In Stock
Condition: New
Ships: Today, Feb. 13th
Pick-Up: Ready in 1 Hour (Order before 4:00 PM)
Pick-Up: Ready in 1 Hour (Order before 4:00 PM)
Required Per Vehicle: 1
Fits: 2003 GMC Sierra 2500
Vehicle Fitment Notes:
With Delco 130 Amp or Delco 145 Amp, Supplied as Delco AD244 145 Amp
With Delco 130 Amp or Delco 145 Amp, Supplied as Delco AD244 145 Amp

2003 GMC Sierra 2500 Alternator
$193.91
In 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)
Required Per Vehicle: 1
Fits: 2003 GMC Sierra 2500
Vehicle Fitment Notes:
Delco 105 Amp
Delco 105 Amp

2003 GMC Sierra 2500 Alternator
$220.42
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)
Required Per Vehicle: 1
Fits: 2003 GMC Sierra 2500
Vehicle Fitment Notes:
Delco AD244, 145A
Delco AD244, 145A

2003 GMC Sierra 2500 Alternator
$239.76
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)
Required Per Vehicle: 1
Fits: 2003 GMC Sierra 2500
Vehicle Fitment Notes:
253 Amp Aftermarket upgrade
253 Amp Aftermarket upgrade

2003 GMC Sierra 2500 Alternator
$374.03
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)
Required Per Vehicle: 1
Fits: 2003 GMC Sierra 2500
Vehicle Fitment Notes:
AD244 Series 220 Amp upgrade
AD244 Series 220 Amp upgrade

2003 GMC Sierra 2500 Alternator
$366.77
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)
Required Per Vehicle: 1
Fits: 2003 GMC Sierra 2500
Vehicle Fitment Notes:
Delco AD244, 200A
Delco AD244, 200A
2003 GMC Sierra 2500 Alternator
$239.76
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)
Required Per Vehicle: 1
Fits: 2003 GMC Sierra 2500
Vehicle Fitment Notes:
253 Amp Aftermarket upgrade
253 Amp Aftermarket upgrade
2003 GMC Sierra 2500 Alternator
$374.03
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)
Required Per Vehicle: 1
Fits: 2003 GMC Sierra 2500
Vehicle Fitment Notes:
AD244 Series 220 Amp upgrade
AD244 Series 220 Amp upgrade
2003 GMC Sierra 2500 Alternator
$366.77
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)
Required Per Vehicle: 1
Fits: 2003 GMC Sierra 2500
Vehicle Fitment Notes:
Delco AD244, 200A
Delco AD244, 200A





2003 GMC Sierra 2500 Alternator
Core charge: $75.00
$177.55
In Stock
Condition: Remanufactured
Ships: Next Business Day
Pick-Up: Next Business Day
Pick-Up: Next Business Day
Required Per Vehicle: 1
Fits: 2003 GMC Sierra 2500
Equipped With:
Engine Base: 6.0L 5967cc 364ci V8 (4.00x3.62; 101.6x92.0);
Engine Base: 6.0L 5967cc 364ci V8 (4.00x3.62; 101.6x92.0);
Vehicle Fitment Notes:
Optional, w/ 145 amp alt.
Optional, w/ 145 amp alt.





2003 GMC Sierra 2500 Alternator
$193.57
Out of Stock
Condition: New
Required Per Vehicle: 1
Fits: 2003 GMC Sierra 2500
Equipped With:
Engine Base: 6.0L 5967cc 364ci V8 (4.00x3.62; 101.6x92.0);
Engine Base: 6.0L 5967cc 364ci V8 (4.00x3.62; 101.6x92.0);
Vehicle Fitment Notes:
w/ Delco 105 amp alt.
w/ Delco 105 amp alt.





2003 GMC Sierra 2500 Alternator
$318.76
Out of Stock
Condition: New
Required Per Vehicle: 1
Fits: 2003 GMC Sierra 2500
Equipped With:
Engine Base: 6.0L 5967cc 364ci V8 (4.00x3.62; 101.6x92.0);
Engine Base: 6.0L 5967cc 364ci V8 (4.00x3.62; 101.6x92.0);
Vehicle Fitment Notes:
Optional, w/ 145 amp alt.
Optional, w/ 145 amp alt.





2003 GMC Sierra 2500 Alternator
$230.44
Call For Availability
Condition: New
Required Per Vehicle: 1
Fits: 2003 GMC Sierra 2500
Equipped With:
Engine Base: 6.0L 5967cc 364ci V8 (4.00x3.62; 101.6x92.0);
Engine Base: 6.0L 5967cc 364ci V8 (4.00x3.62; 101.6x92.0);





2003 GMC Sierra 2500 Alternator
$230.44
Call For Availability
Condition: New
Required Per Vehicle: 1
Fits: 2003 GMC Sierra 2500
Equipped With:
Engine Base: 6.0L 5967cc 364ci V8 (4.00x3.62; 101.6x92.0);
Engine Base: 6.0L 5967cc 364ci V8 (4.00x3.62; 101.6x92.0);
Vehicle Fitment Notes:
Regulator Position: Internal Fan Position: Internal Power Generation (Amps): 105A
Regulator Position: Internal Fan Position: Internal Power Generation (Amps): 105A



2003 GMC Sierra 2500 Alternator
Required Per Vehicle: 1
Made in USA
Fits: 2003 GMC Sierra 2500
Equipped With:
Engine Base: 6.0L 5967cc 364ci V8 (4.00x3.62; 101.6x92.0);
Engine Base: 6.0L 5967cc 364ci V8 (4.00x3.62; 101.6x92.0);
Vehicle Fitment Notes:
145 Amp; with 4-Pin Plug; Delco Unit First Time Fit
145 Amp; with 4-Pin Plug; Delco Unit First Time Fit
2003 GMC Sierra 2500 Alternator
$322.45
Out of Stock
Condition: New
Required Per Vehicle: 1
Fits: 2003 GMC Sierra 2500
Vehicle Fitment Notes:
145 Amp (DR44G) upgrade version
145 Amp (DR44G) upgrade version