2003 GMC Sierra 2500 HVAC Heater Core
Navigate our online catalogue to find original replacement HVAC Heater Cores specifically designed to fit a 2003 GMC Sierra 2500.


HVAC Heater Core
$80.55 CAD
In Stock
Condition: New
Ships: Thursday Oct. 9th
Pick-Up: Ready in 1 Hour Thursday Oct. 9th
Pick-Up: Ready in 1 Hour Thursday Oct. 9th
Required Per Vehicle: 1
Vehicle Fitment Notes:
Old Body Style
Old Body Style




HVAC Heater Core
$60.58 CAD
In Stock
Condition: New
Ships: Thursday Oct. 9th
Pick-Up: Ready in 2-3 Hours Thursday Oct. 9th
Pick-Up: Ready in 2-3 Hours Thursday Oct. 9th
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:
All RPO Codes Except CJ3/D07 Combination
All RPO Codes Except CJ3/D07 Combination




HVAC Heater Core
$82.94 CAD
Limited Stock
Condition: New
Ships: Thursday Oct. 9th
Pick-Up: Ready in 2-3 Hours Thursday Oct. 9th
Pick-Up: Ready in 2-3 Hours Thursday Oct. 9th
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/ RPO Code CJ3/D07 Combination Only (HVAC Manual Temp Control/Custom Front Floor Console)
w/ RPO Code CJ3/D07 Combination Only (HVAC Manual Temp Control/Custom Front Floor Console)


HVAC Heater Core
$63.15 CAD
In Stock
Condition: New
Ships: Thursday Oct. 9th
Pick-Up: Ready in 1 Hour Thursday Oct. 9th
Pick-Up: Ready in 1 Hour Thursday Oct. 9th
Required Per Vehicle: 1
Vehicle Fitment Notes:
Heavy Duty Heater
Heavy Duty Heater







HVAC Heater Core
$100.76 CAD
Call For Availability
Condition: New
Required Per Vehicle: 1
Vehicle Fitment Notes:
w/o Custom Center Console w/o Rear Vents In Center Console
w/o Custom Center Console w/o Rear Vents In Center Console



HVAC Heater Core
$85.98 CAD
Call For Availability
Condition: New







HVAC Heater Core
Call for Pricing
Call For Availability
Condition: New
Required Per Vehicle: 1
Vehicle Fitment Notes:
w/ Custom Center Console w/ Rear Vents In Center Console
w/ Custom Center Console w/ Rear Vents In Center Console

HVAC Heater Core
Call for Pricing
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);