2003 GMC Sierra 1500 HD Alternator
Navigate our online catalogue to find original replacement Alternators specifically designed to fit a 2003 GMC Sierra 1500 HD.








Alternator
Core charge: $90.00
$116.86 CAD
In Stock
Condition: Remanufactured
Ships: Today, Oct. 8th
Pick-Up: Ready in 1 Hour (Order before 4:30 PM)
Pick-Up: Ready in 1 Hour (Order before 4:30 PM)
Required Per Vehicle: 1
Vehicle fitment:
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.







Alternator
Core charge: $75.00
$177.55 CAD
In Stock
Condition: Remanufactured
Ships: Next Business Day
Pick-Up: Next Business Day
Pick-Up: Next Business Day
Required Per Vehicle: 1
Vehicle fitment:
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.







Alternator
$318.76 CAD
Limited Stock
Condition: New
Ships: Next Business Day
Pick-Up: Next Business Day
Pick-Up: Next Business Day
Required Per Vehicle: 1
Vehicle fitment:
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.





Alternator
$193.91 CAD
10+ In Stock
Condition: New
Ships: Today, Oct. 8th
Pick-Up: Ready in 1 Hour (Order before 4:30 PM)
Pick-Up: Ready in 1 Hour (Order before 4:30 PM)
Required Per Vehicle: 1
Vehicle Fitment Notes:
Delco 105 Amp
Delco 105 Amp





Alternator
$193.91 CAD
10+ In Stock
Condition: New
Ships: Today, Oct. 8th
Pick-Up: Ready in 1 Hour (Order before 4:30 PM)
Pick-Up: Ready in 1 Hour (Order before 4:30 PM)
Required Per Vehicle: 1
Vehicle Fitment Notes:
Delco AD230, 105A, Std.
Delco AD230, 105A, Std.





Alternator
$220.42 CAD
10+ In Stock
Condition: New
Ships: Today, Oct. 8th
Pick-Up: Ready in 1 Hour (Order before 4:30 PM)
Pick-Up: Ready in 1 Hour (Order before 4:30 PM)
Required Per Vehicle: 1
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

Alternator
$193.91 CAD
In Stock
Condition: New
Ships: Same or Next Business Day
Pick-Up: Same Business Day (Order before 12pm)
Pick-Up: Same Business Day (Order before 12pm)
Required Per Vehicle: 1
Vehicle Fitment Notes:
Delco 105 Amp
Delco 105 Amp

Alternator
$220.42 CAD
Limited Stock
Condition: New
Ships: Same or Next Business Day
Pick-Up: Same Business Day (Order before 12pm)
Pick-Up: Same Business Day (Order before 12pm)
Required Per Vehicle: 1
Vehicle Fitment Notes:
Delco AD244, 145A
Delco AD244, 145A

Alternator
$239.76 CAD
Limited Stock
Condition: New
Ships: Same or Next Business Day
Pick-Up: Same Business Day (Order before 12pm)
Pick-Up: Same Business Day (Order before 12pm)
Required Per Vehicle: 1
Vehicle Fitment Notes:
253 Amp Aftermarket upgrade
253 Amp Aftermarket upgrade

Alternator
$374.03 CAD
Limited Stock
Condition: New
Ships: Same or Next Business Day
Pick-Up: Same Business Day (Order before 12pm)
Pick-Up: Same Business Day (Order before 12pm)
Required Per Vehicle: 1
Vehicle Fitment Notes:
AD244 Series 220 Amp upgrade
AD244 Series 220 Amp upgrade

Alternator
$366.77 CAD
Limited Stock
Condition: New
Ships: Same or Next Business Day
Pick-Up: Same Business Day (Order before 12pm)
Pick-Up: Same Business Day (Order before 12pm)
Required Per Vehicle: 1
Vehicle Fitment Notes:
Delco AD244, 200A
Delco AD244, 200A


Alternator
$239.76 CAD
Limited Stock
Condition: New
Ships: Same or Next Business Day
Pick-Up: Same Business Day (Order before 12pm)
Pick-Up: Same Business Day (Order before 12pm)
Required Per Vehicle: 1
Vehicle Fitment Notes:
253 Amp Aftermarket upgrade
253 Amp Aftermarket upgrade


Alternator
$374.03 CAD
Limited Stock
Condition: New
Ships: Same or Next Business Day
Pick-Up: Same Business Day (Order before 12pm)
Pick-Up: Same Business Day (Order before 12pm)
Required Per Vehicle: 1
Vehicle Fitment Notes:
AD244 Series 220 Amp upgrade
AD244 Series 220 Amp upgrade


Alternator
$366.77 CAD
Limited Stock
Condition: New
Ships: Same or Next Business Day
Pick-Up: Same Business Day (Order before 12pm)
Pick-Up: Same Business Day (Order before 12pm)
Required Per Vehicle: 1
Vehicle Fitment Notes:
Delco AD244, 200A
Delco AD244, 200A







Alternator
$193.57 CAD
Out of Stock
Condition: New
Required Per Vehicle: 1
Vehicle fitment:
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.







Alternator
$235.59 CAD
Call For Availability
Condition: New
Required Per Vehicle: 1
Vehicle fitment:
Body Type: Crew Cab Pickup; Engine Base: 6.0L 5967cc 364ci V8 (4.00x3.62; 101.6x92.0); Sub-Model: SLE;
Body Type: Crew Cab Pickup; Engine Base: 6.0L 5967cc 364ci V8 (4.00x3.62; 101.6x92.0); Sub-Model: SLE;
Vehicle Fitment Notes:
Power Generation (Amps): 105A
Power Generation (Amps): 105A







Alternator
$235.59 CAD
Call For Availability
Condition: New
Required Per Vehicle: 1
Vehicle fitment:
Body Type: Crew Cab Pickup; Engine Base: 6.0L 5967cc 364ci V8 (4.00x3.62; 101.6x92.0); Sub-Model: SLT;
Body Type: Crew Cab Pickup; Engine Base: 6.0L 5967cc 364ci V8 (4.00x3.62; 101.6x92.0); Sub-Model: SLT;
Vehicle Fitment Notes:
Power Generation (Amps): 105A
Power Generation (Amps): 105A







Alternator
$235.59 CAD
Call For Availability
Condition: New
Required Per Vehicle: 1
Vehicle fitment:
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);







Alternator
$235.59 CAD
Call For Availability
Condition: New
Required Per Vehicle: 1
Vehicle fitment:
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







Alternator
$258.76 CAD
Call For Availability
Condition: New
Required Per Vehicle: 1
Vehicle fitment:
Body Type: Crew Cab Pickup; Engine Base: 6.0L 5967cc 364ci V8 (4.00x3.62; 101.6x92.0); Sub-Model: SLE;
Body Type: Crew Cab Pickup; Engine Base: 6.0L 5967cc 364ci V8 (4.00x3.62; 101.6x92.0); Sub-Model: SLE;
Vehicle Fitment Notes:
Power Generation (Amps): 145A
Power Generation (Amps): 145A







Alternator
$258.76 CAD
Call For Availability
Condition: New
Required Per Vehicle: 1
Vehicle fitment:
Body Type: Crew Cab Pickup; Engine Base: 6.0L 5967cc 364ci V8 (4.00x3.62; 101.6x92.0); Sub-Model: SLE;
Body Type: Crew Cab Pickup; Engine Base: 6.0L 5967cc 364ci V8 (4.00x3.62; 101.6x92.0); Sub-Model: SLE;
Vehicle Fitment Notes:
Power Generation (Amps): 145A Regulator Position: Internal Fan Position: Internal
Power Generation (Amps): 145A Regulator Position: Internal Fan Position: Internal







Alternator
$258.76 CAD
Call For Availability
Condition: New
Required Per Vehicle: 1
Vehicle fitment:
Body Type: Crew Cab Pickup; Engine Base: 6.0L 5967cc 364ci V8 (4.00x3.62; 101.6x92.0); Sub-Model: SLT;
Body Type: Crew Cab Pickup; Engine Base: 6.0L 5967cc 364ci V8 (4.00x3.62; 101.6x92.0); Sub-Model: SLT;
Vehicle Fitment Notes:
Power Generation (Amps): 145A
Power Generation (Amps): 145A







Alternator
$258.76 CAD
Call For Availability
Condition: New
Required Per Vehicle: 1
Vehicle fitment:
Body Type: Crew Cab Pickup; Engine Base: 6.0L 5967cc 364ci V8 (4.00x3.62; 101.6x92.0); Sub-Model: SLT;
Body Type: Crew Cab Pickup; Engine Base: 6.0L 5967cc 364ci V8 (4.00x3.62; 101.6x92.0); Sub-Model: SLT;
Vehicle Fitment Notes:
Power Generation (Amps): 145A Regulator Position: Internal Fan Position: Internal
Power Generation (Amps): 145A Regulator Position: Internal Fan Position: Internal







Alternator
$258.76 CAD
Call For Availability
Condition: New
Required Per Vehicle: 1
Vehicle fitment:
Body Type: Crew Cab Pickup; Sub-Model: SLE;
Body Type: Crew Cab Pickup; Sub-Model: SLE;
Vehicle Fitment Notes:
Power Generation (Amps): 145A
Power Generation (Amps): 145A







Alternator
$258.76 CAD
Call For Availability
Condition: New
Required Per Vehicle: 1
Vehicle fitment:
Body Type: Crew Cab Pickup; Sub-Model: SLT;
Body Type: Crew Cab Pickup; Sub-Model: SLT;
Vehicle Fitment Notes:
Power Generation (Amps): 145A
Power Generation (Amps): 145A


Alternator
$322.45 CAD
Out of Stock
Condition: New
Required Per Vehicle: 1
Vehicle Fitment Notes:
145 Amp (DR44G) upgrade version
145 Amp (DR44G) upgrade version