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2003 GMC Sierra 1500
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60-Day Returns
Lifetime Replacement
2003 GMC Sierra 1500

2003 GMC Sierra 1500 Heater Cores

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Showing 1 - 7 of 7 results
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Heater Core, 8/6 Cyl
Replacement
Heater Core, 8/6 Cyl
Part Number: REPC503005
Guaranteed to Fit
$28.49
Vehicle Fitment
  • 2003 GMC Sierra 1500 WT 6 Cyl 4.3L
  • 2003 GMC Sierra 1500 SL 6 Cyl 4.3L
  • 2003 GMC Sierra 1500 SLT 8 Cyl 4.8L
  • 2003 GMC Sierra 1500 SL 8 Cyl 4.8L
  • 2003 GMC Sierra 1500 SLE 6 Cyl 4.3L
  • 2003 GMC Sierra 1500 SLE 8 Cyl 4.8L
  • 2003 GMC Sierra 1500 Denali 8 Cyl 6.0L
  • 2003 GMC Sierra 1500 WT 8 Cyl 4.8L
  • 2003 GMC Sierra 1500 SLE 8 Cyl 5.3L
  • 2003 GMC Sierra 1500 SLT 6 Cyl 4.3L
  • 2003 GMC Sierra 1500 Base 6 Cyl 4.3L
  • 2003 GMC Sierra 1500 Base 8 Cyl 4.8L
  • 2003 GMC Sierra 1500 Base 8 Cyl 5.3L
  • 2003 GMC Sierra 1500 WT 8 Cyl 5.3L
  • 2003 GMC Sierra 1500 SLT 8 Cyl 5.3L
  • 2003 GMC Sierra 1500 SL 8 Cyl 5.3L
Product Details
Notes : Does not fit vehicles with custom floor console; Pipes must be rotated to match configurationReplaces OE Number : 89018297Replaces Partslink Number : GM3128108Replaces DPI Number : 9994Quantity Sold : Sold individuallyWarranty : 1-year Replacement unlimited-mileage warrantyProp 65 Warning :

Warning SymbolWARNING: This product can expose you to chemical which is known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.

Returns Policy : 30-Day Return PolicyOutlet Size : 0.75 in.Interchange Part Number : 1562960, 90050, 8231379, 93050, 89018297, GM3128108Core Dimensions : 8 x 7.5 x 1 in. Core sizeInlet Size : 0.75 in.
Heater Core, 8/6 Cyl
GPD®
Heater Core, 8/6 Cyl
Part Number: GPD8231379
Guaranteed to Fit
$37.49
Vehicle Fitment
  • 2003 GMC Sierra 1500 WT 6 Cyl 4.3L
  • 2003 GMC Sierra 1500 SL 6 Cyl 4.3L
  • 2003 GMC Sierra 1500 SLT 8 Cyl 4.8L
  • 2003 GMC Sierra 1500 SL 8 Cyl 4.8L
  • 2003 GMC Sierra 1500 SLE 6 Cyl 4.3L
  • 2003 GMC Sierra 1500 SLE 8 Cyl 4.8L
  • 2003 GMC Sierra 1500 Denali 8 Cyl 6.0L
  • 2003 GMC Sierra 1500 WT 8 Cyl 4.8L
  • 2003 GMC Sierra 1500 SLE 8 Cyl 5.3L
  • 2003 GMC Sierra 1500 SLT 6 Cyl 4.3L
  • 2003 GMC Sierra 1500 Base 6 Cyl 4.3L
  • 2003 GMC Sierra 1500 Base 8 Cyl 4.8L
  • 2003 GMC Sierra 1500 Base 8 Cyl 5.3L
  • 2003 GMC Sierra 1500 WT 8 Cyl 5.3L
  • 2003 GMC Sierra 1500 SLT 8 Cyl 5.3L
  • 2003 GMC Sierra 1500 SL 8 Cyl 5.3L
Product Details
Quantity Sold : Sold individuallyWarranty : 1 year GPD limited warrantyProp 65 Warning :

Warning SymbolWARNING: This product can expose you to chemical which is known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.

Series : GPD OE ReplacementCore Material : Aluminum Core
Heater Core, 8/6 Cyl -
4-Seasons®
Heater Core, 8/6 Cyl -
Part Number: FS90050
Guaranteed to Fit
$34.49
Vehicle Fitment
  • 2003 GMC Sierra 1500 WT 6 Cyl 4.3L
  • 2003 GMC Sierra 1500 SL 6 Cyl 4.3L
  • 2003 GMC Sierra 1500 SLT 8 Cyl 4.8L
  • 2003 GMC Sierra 1500 SL 8 Cyl 4.8L
  • 2003 GMC Sierra 1500 SLE 6 Cyl 4.3L
  • 2003 GMC Sierra 1500 SLE 8 Cyl 4.8L
  • 2003 GMC Sierra 1500 Denali 8 Cyl 6.0L
  • 2003 GMC Sierra 1500 WT 8 Cyl 4.8L
  • 2003 GMC Sierra 1500 SLE 8 Cyl 5.3L
  • 2003 GMC Sierra 1500 SLT 6 Cyl 4.3L
  • 2003 GMC Sierra 1500 Base 6 Cyl 4.3L
  • 2003 GMC Sierra 1500 Base 8 Cyl 4.8L
  • 2003 GMC Sierra 1500 Base 8 Cyl 5.3L
  • 2003 GMC Sierra 1500 WT 8 Cyl 5.3L
  • 2003 GMC Sierra 1500 SLT 8 Cyl 5.3L
  • 2003 GMC Sierra 1500 SL 8 Cyl 5.3L
Product Details
Notes : 7.5 in. Core Width; 8.25 in. Core Height; 1.25 in. Core Depth; 0.75 in. Tube 1; 0.75 in. Tube 2Quantity Sold : Sold individuallyWarranty : 1 year or 12,000-mile 4-Seasons limited warrantyProp 65 Warning :

Warning SymbolWARNING: This product can expose you to chemical which is known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.

Core Material : Aluminum
Heater Core, 8/6 Cyl -
AC Delco®
Heater Core, 8/6 Cyl -
Part Number: AC1562960
Guaranteed to Fit
$158.99
Vehicle Fitment
  • 2003 GMC Sierra 1500 WT 6 Cyl 4.3L 4-Door, Extended Cab Pickup, Air Conditioning Front Man/Aux Control(CJ3), Except Custom F/Cmpt Flr Cnsl(D07)
  • 2003 GMC Sierra 1500 SL 6 Cyl 4.3L 2-Door, Standard Cab Pickup, Air Conditioning Front Man/Aux Control(CJ3), Except Custom F/Cmpt Flr Cnsl(D07)
  • 2003 GMC Sierra 1500 SLT 8 Cyl 4.8L 4-Door, Extended Cab Pickup, Air Conditioning Front Man/Aux Control(CJ3), Except Custom F/Cmpt Flr Cnsl(D07)
  • 2003 GMC Sierra 1500 SL 8 Cyl 4.8L 2-Door, Standard Cab Pickup, Air Conditioning Front Man/Aux Control(CJ3), Except Custom F/Cmpt Flr Cnsl(D07)
  • 2003 GMC Sierra 1500 SLE 6 Cyl 4.3L 4-Door, Extended Cab Pickup, Air Conditioning Front Man/Aux Control(CJ3), Except Custom F/Cmpt Flr Cnsl(D07)
  • 2003 GMC Sierra 1500 SLE 8 Cyl 4.8L 4-Door, Extended Cab Pickup, Air Conditioning Front Man/Aux Control(CJ3), Except Custom F/Cmpt Flr Cnsl(D07)
  • 2003 GMC Sierra 1500 Denali 8 Cyl 6.0L 4-Door, Extended Cab Pickup, Air Conditioning Front Man/Aux Control(CJ3), Except Custom F/Cmpt Flr Cnsl(D07)
  • 2003 GMC Sierra 1500 WT 8 Cyl 4.8L 4-Door, Extended Cab Pickup, Air Conditioning Front Man/Aux Control(CJ3), Except Custom F/Cmpt Flr Cnsl(D07)
  • 2003 GMC Sierra 1500 SLE 8 Cyl 5.3L 2-Door, Standard Cab Pickup, Air Conditioning Front Man/Aux Control(CJ3), Except Custom F/Cmpt Flr Cnsl(D07)
  • 2003 GMC Sierra 1500 SLT 6 Cyl 4.3L 4-Door, Extended Cab Pickup, Air Conditioning Front Man/Aux Control(CJ3), Except Custom F/Cmpt Flr Cnsl(D07)
  • 2003 GMC Sierra 1500 Base 6 Cyl 4.3L 2-Door, Standard Cab Pickup, Air Conditioning Front Man/Aux Control(CJ3), Except Custom F/Cmpt Flr Cnsl(D07)
  • 2003 GMC Sierra 1500 Base 8 Cyl 4.8L 2-Door, Standard Cab Pickup, Air Conditioning Front Man/Aux Control(CJ3), Except Custom F/Cmpt Flr Cnsl(D07)
  • 2003 GMC Sierra 1500 Base 8 Cyl 5.3L 4-Door, Extended Cab Pickup, Air Conditioning Front Man/Aux Control(CJ3), Except Custom F/Cmpt Flr Cnsl(D07)
  • 2003 GMC Sierra 1500 WT 8 Cyl 5.3L 4-Door, Extended Cab Pickup, Air Conditioning Front Man/Aux Control(CJ3), Except Custom F/Cmpt Flr Cnsl(D07)
  • 2003 GMC Sierra 1500 SLT 8 Cyl 5.3L 4-Door, Extended Cab Pickup, Air Conditioning Front Man/Aux Control(CJ3), Except Custom F/Cmpt Flr Cnsl(D07)
  • 2003 GMC Sierra 1500 SL 8 Cyl 5.3L 2-Door, Standard Cab Pickup, Air Conditioning Front Man/Aux Control(CJ3), Except Custom F/Cmpt Flr Cnsl(D07)
Product Details
Quantity Sold : Sold individuallyWarranty : 24-months or unlimited mile AC Delco limited warrantyProp 65 Warning :

Warning SymbolWARNING: This product can expose you to chemical which is known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.

Series : GM Original Equipment Series
Heater Core, 8/6 Cyl., 4-Door, Extended Cab Pickup -
AC Delco®
Heater Core, 8/6 Cyl., 4-Door, Extended Cab Pickup -
Part Number: AC1562827
Guaranteed to Fit
$207.49
Vehicle Fitment
  • 2003 GMC Sierra 1500 Denali 8 Cyl 6.0L 4-Door, Extended Cab Pickup
  • 2003 GMC Sierra 1500 SL 6 Cyl 4.3L 4-Door, Extended Cab Pickup
  • 2003 GMC Sierra 1500 SLT 8 Cyl 4.8L 4-Door, Extended Cab Pickup
  • 2003 GMC Sierra 1500 Base 8 Cyl 5.3L 4-Door, Extended Cab Pickup
  • 2003 GMC Sierra 1500 WT 8 Cyl 4.8L 4-Door, Extended Cab Pickup
  • 2003 GMC Sierra 1500 SLE 8 Cyl 5.3L 4-Door, Extended Cab Pickup
  • 2003 GMC Sierra 1500 SLT 6 Cyl 4.3L 4-Door, Extended Cab Pickup
  • 2003 GMC Sierra 1500 WT 8 Cyl 5.3L 4-Door, Extended Cab Pickup
  • 2003 GMC Sierra 1500 Base 6 Cyl 4.3L 4-Door, Extended Cab Pickup
  • 2003 GMC Sierra 1500 SL 8 Cyl 4.8L 4-Door, Extended Cab Pickup
  • 2003 GMC Sierra 1500 Base 8 Cyl 4.8L 4-Door, Extended Cab Pickup
  • 2003 GMC Sierra 1500 WT 6 Cyl 4.3L 4-Door, Extended Cab Pickup
  • 2003 GMC Sierra 1500 SLT 8 Cyl 5.3L 4-Door, Extended Cab Pickup
  • 2003 GMC Sierra 1500 SLE 6 Cyl 4.3L 4-Door, Extended Cab Pickup
  • 2003 GMC Sierra 1500 SL 8 Cyl 5.3L 4-Door, Extended Cab Pickup
  • 2003 GMC Sierra 1500 SLE 8 Cyl 4.8L 4-Door, Extended Cab Pickup
Product Details
Quantity Sold : Sold individuallyWarranty : 24-months or unlimited mile AC Delco limited warrantyProp 65 Warning :

Warning SymbolWARNING: This product can expose you to chemical which is known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.

Series : GM Original Equipment Series
Heater Core, 8/6 Cyl., with RPO Code CJ3/D07 - Front
One Stop Solutions®
Heater Core, 8/6 Cyl., with RPO Code CJ3/D07 - Front
Part Number: OSS99079
Guaranteed to Fit
$88.49
Vehicle Fitment
  • 2003 GMC Sierra 1500 Denali 8 Cyl 6.0L With RPO Code CJ3/D07
  • 2003 GMC Sierra 1500 WT 8 Cyl 4.8L With RPO Code CJ3/D07
  • 2003 GMC Sierra 1500 SLE 8 Cyl 5.3L With RPO Code CJ3/D07
  • 2003 GMC Sierra 1500 SLT 6 Cyl 4.3L With RPO Code CJ3/D07
  • 2003 GMC Sierra 1500 Base 6 Cyl 4.3L With RPO Code CJ3/D07
  • 2003 GMC Sierra 1500 Base 8 Cyl 4.8L With RPO Code CJ3/D07
  • 2003 GMC Sierra 1500 WT 6 Cyl 4.3L With RPO Code CJ3/D07
  • 2003 GMC Sierra 1500 SL 6 Cyl 4.3L With RPO Code CJ3/D07
  • 2003 GMC Sierra 1500 SLT 8 Cyl 4.8L With RPO Code CJ3/D07
  • 2003 GMC Sierra 1500 Base 8 Cyl 5.3L With RPO Code CJ3/D07
  • 2003 GMC Sierra 1500 WT 8 Cyl 5.3L With RPO Code CJ3/D07
  • 2003 GMC Sierra 1500 SL 8 Cyl 4.8L With RPO Code CJ3/D07
  • 2003 GMC Sierra 1500 SLT 8 Cyl 5.3L With RPO Code CJ3/D07
  • 2003 GMC Sierra 1500 SLE 6 Cyl 4.3L With RPO Code CJ3/D07
  • 2003 GMC Sierra 1500 SL 8 Cyl 5.3L With RPO Code CJ3/D07
  • 2003 GMC Sierra 1500 SLE 8 Cyl 4.8L With RPO Code CJ3/D07
Product Details
Location : FrontQuantity Sold : Sold individuallyWarranty : 1 year One Stop Solutions limited warrantyProp 65 Warning :

Warning SymbolWARNING: This product can expose you to chemical which is known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.

Heater Core, 8/6 Cyl., without RPO Code Cj3/D07 - Front
One Stop Solutions®
Heater Core, 8/6 Cyl., without RPO Code Cj3/D07 - Front
Part Number: OSS98050
Guaranteed to Fit
$50.49
Vehicle Fitment
  • 2003 GMC Sierra 1500 WT 6 Cyl 4.3L Without RPO Code Cj3/D07
  • 2003 GMC Sierra 1500 SL 6 Cyl 4.3L Without RPO Code Cj3/D07
  • 2003 GMC Sierra 1500 SLT 8 Cyl 4.8L Without RPO Code Cj3/D07
  • 2003 GMC Sierra 1500 SL 8 Cyl 4.8L Without RPO Code Cj3/D07
  • 2003 GMC Sierra 1500 SLE 6 Cyl 4.3L Without RPO Code Cj3/D07
  • 2003 GMC Sierra 1500 SLE 8 Cyl 4.8L Without RPO Code Cj3/D07
  • 2003 GMC Sierra 1500 Denali 8 Cyl 6.0L Without RPO Code Cj3/D07
  • 2003 GMC Sierra 1500 WT 8 Cyl 4.8L Without RPO Code Cj3/D07
  • 2003 GMC Sierra 1500 SLE 8 Cyl 5.3L Without RPO Code Cj3/D07
  • 2003 GMC Sierra 1500 SLT 6 Cyl 4.3L Without RPO Code Cj3/D07
  • 2003 GMC Sierra 1500 Base 6 Cyl 4.3L Without RPO Code Cj3/D07
  • 2003 GMC Sierra 1500 Base 8 Cyl 4.8L Without RPO Code Cj3/D07
  • 2003 GMC Sierra 1500 Base 8 Cyl 5.3L Without RPO Code Cj3/D07
  • 2003 GMC Sierra 1500 WT 8 Cyl 5.3L Without RPO Code Cj3/D07
  • 2003 GMC Sierra 1500 SLT 8 Cyl 5.3L Without RPO Code Cj3/D07
  • 2003 GMC Sierra 1500 SL 8 Cyl 5.3L Without RPO Code Cj3/D07
Product Details
Location : FrontQuantity Sold : Sold individuallyWarranty : 1 year One Stop Solutions limited warrantyProp 65 Warning :

Warning SymbolWARNING: This product can expose you to chemical which is known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.

Page 1 of 1 | Showing 1 - 7 of 7 results

Top Rated Products

Replacement Heater Core, 8/6 Cyl
$28.49( Review)
great price and on time delivery.
Johnny A.
VERIFIED PURCHASER
GPD Heater Core, 8/6 Cyl
$37.49( Review)
Just the right part at the right price. Thank you!
Jeremy H.
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AC Delco Heater Core, 8/6 Cyl -
$158.99( Review)
Exactly what I was looking for the rebuild of my truck.
Mary T.
VERIFIED PURCHASER

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