{
    "lazyNodes": false,
    "abFitnotesFlag": false,
    "abCrawlReviews": true,
    "productOptionsCookie": false,
    "orderDelayFlag": false,
    "skipSessionCookie": false,
    "covidMessage": false,
    "fullTitleCookie": false,
    "nrLoggerCookie": true,
    "checkoutReviewCookie": false,
    "productOptionSeqCookie": false,
    "maintenanceFlag": false,
    "bufferETACookie": false,
    "multiShippingDiscountFlag": false,
    "newFitmentFlag": false,
    "surveyOptInFlag": true,
    "crossSellFlag": false,
    "skuMappingFlag": false,
    "paySplitCookie": false,
    "callDisableFlag": true,
    "zipPaymentFlag": "c",
    "hassleFreeReturn": true,
    "lifetimeReplacement": true,
    "cpn_off": false
}
1991 GMC C1500
1
0
Price Match Guarantee
60-Day Returns
Lifetime Replacement
Price Match Guarantee
60-Day Returns
Lifetime Replacement
1991 GMC C1500

1991 GMC C1500 Heater Cores

Refine by:

Shop Catalog

Showing 1 - 7 of 7 results
Sort by:
Heater Core, 8/6 Cyl., with AC
Replacement
Heater Core, 8/6 Cyl., with AC
Part Number: RC50300007
Guaranteed to Fit
$26.99
Vehicle Fitment
  • 1991 GMC C1500 Sierra 8 Cyl 5.7L With AC
  • 1991 GMC C1500 Sierra SLE 8 Cyl 6.2L With AC
  • 1991 GMC C1500 Sierra SLE 8 Cyl 5.0L With AC
  • 1991 GMC C1500 Sierra SLX 8 Cyl 5.0L With AC
  • 1991 GMC C1500 Sierra 6 Cyl 4.3L With AC
  • 1991 GMC C1500 Sierra SLX 8 Cyl 5.7L With AC
  • 1991 GMC C1500 Sierra SLE 6 Cyl 4.3L With AC
  • 1991 GMC C1500 Sierra SLX 8 Cyl 6.2L With AC
  • 1991 GMC C1500 Sierra SLX 6 Cyl 4.3L With AC
  • 1991 GMC C1500 Sierra 8 Cyl 5.0L With AC
  • 1991 GMC C1500 Sierra SLE 8 Cyl 5.7L With AC
  • 1991 GMC C1500 Sierra 8 Cyl 6.2L With AC
Product Details
Replaces OE Number : 89019173Replaces DPI Number : 8303Quantity 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.

Outlet Size : 0.63 in.Interchange Part Number : 90483, 8231249, 94483, 89019173Core Dimensions : 8.25 x 7.5 x 1 in. Core sizeReturns Policy : 30-Day Return PolicyInlet Size : 0.75 in.Core Material : Aluminum
Heater Core, without AC
Replacement
Heater Core, without AC
Part Number: REPC503013
Guaranteed to Fit
$29.49
Vehicle Fitment
  • 1991 GMC C1500 All Submodels All Engines Without AC
Product Details
Replaces OE Number : 19131978Replaces DPI Number : 9079Quantity 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.

Outlet Size : 0.75 in.Interchange Part Number : 98553, 94553, 19131978Core Dimensions : 7.63 x 6.5 x 1.25 in. Core sizeReturns Policy : 30-Day Return PolicyInlet Size : 0.75 in.
Heater Core, 8/6 Cyl
GPD®
Heater Core, 8/6 Cyl
Part Number: GPD8231249
Guaranteed to Fit
$31.99
Vehicle Fitment
  • 1991 GMC C1500 Sierra 8 Cyl 5.7L
  • 1991 GMC C1500 Sierra SLE 8 Cyl 6.2L
  • 1991 GMC C1500 Sierra SLE 8 Cyl 5.0L
  • 1991 GMC C1500 Sierra SLX 8 Cyl 5.0L
  • 1991 GMC C1500 Sierra 6 Cyl 4.3L
  • 1991 GMC C1500 Sierra SLX 8 Cyl 5.7L
  • 1991 GMC C1500 Sierra SLE 6 Cyl 4.3L
  • 1991 GMC C1500 Sierra SLX 8 Cyl 6.2L
  • 1991 GMC C1500 Sierra SLX 6 Cyl 4.3L
  • 1991 GMC C1500 Sierra 8 Cyl 5.0L
  • 1991 GMC C1500 Sierra SLE 8 Cyl 5.7L
  • 1991 GMC C1500 Sierra 8 Cyl 6.2L
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 -
One Stop Solutions®
Heater Core, 8/6 Cyl -
Part Number: OSS98483
Guaranteed to Fit
$48.49
Vehicle Fitment
  • 1991 GMC C1500 Sierra 8 Cyl 5.7L
  • 1991 GMC C1500 Sierra SLE 8 Cyl 6.2L
  • 1991 GMC C1500 Sierra SLE 8 Cyl 5.0L
  • 1991 GMC C1500 Sierra SLX 8 Cyl 5.0L
  • 1991 GMC C1500 Sierra 6 Cyl 4.3L
  • 1991 GMC C1500 Sierra SLX 8 Cyl 5.7L
  • 1991 GMC C1500 Sierra SLE 6 Cyl 4.3L
  • 1991 GMC C1500 Sierra SLX 8 Cyl 6.2L
  • 1991 GMC C1500 Sierra SLX 6 Cyl 4.3L
  • 1991 GMC C1500 Sierra 8 Cyl 5.0L
  • 1991 GMC C1500 Sierra SLE 8 Cyl 5.7L
  • 1991 GMC C1500 Sierra 8 Cyl 6.2L
Product Details
Quantity 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, without AC -
4-Seasons®
Heater Core, without AC -
Part Number: FS98553
Guaranteed to Fit
$37.99
Vehicle Fitment
  • 1991 GMC C1500 All Submodels All Engines Without AC
Product Details
Notes : 6.38 in. Core Width; 7.63 in. Core Height; 1.88 in. Core Depth; 0.63 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 Core
Heater Core, 8/6 Cyl., with AC -
4-Seasons®
Heater Core, 8/6 Cyl., with AC -
Part Number: FS90483
Guaranteed to Fit
$32.49
Vehicle Fitment
  • 1991 GMC C1500 Sierra 8 Cyl 5.7L With AC
  • 1991 GMC C1500 Sierra SLE 8 Cyl 6.2L With AC
  • 1991 GMC C1500 Sierra SLE 8 Cyl 5.0L With AC
  • 1991 GMC C1500 Sierra SLX 8 Cyl 5.0L With AC
  • 1991 GMC C1500 Sierra 6 Cyl 4.3L With AC
  • 1991 GMC C1500 Sierra SLX 8 Cyl 5.7L With AC
  • 1991 GMC C1500 Sierra SLE 6 Cyl 4.3L With AC
  • 1991 GMC C1500 Sierra SLX 8 Cyl 6.2L With AC
  • 1991 GMC C1500 Sierra SLX 6 Cyl 4.3L With AC
  • 1991 GMC C1500 Sierra 8 Cyl 5.0L With AC
  • 1991 GMC C1500 Sierra SLE 8 Cyl 5.7L With AC
  • 1991 GMC C1500 Sierra 8 Cyl 6.2L With AC
Product Details
Notes : 7 in. Core Width; 8.25 in. Core Height; 1 in. Core Depth; 0.63 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: AC1560059
Guaranteed to Fit
$96.49
Vehicle Fitment
  • 1991 GMC C1500 Sierra 8 Cyl 5.7L
  • 1991 GMC C1500 Sierra SLE 8 Cyl 6.2L
  • 1991 GMC C1500 Sierra SLE 8 Cyl 5.0L
  • 1991 GMC C1500 Sierra SLX 8 Cyl 5.0L
  • 1991 GMC C1500 Sierra 6 Cyl 4.3L
  • 1991 GMC C1500 Sierra SLX 8 Cyl 5.7L
  • 1991 GMC C1500 Sierra SLE 6 Cyl 4.3L
  • 1991 GMC C1500 Sierra SLX 8 Cyl 6.2L
  • 1991 GMC C1500 Sierra SLX 6 Cyl 4.3L
  • 1991 GMC C1500 Sierra 8 Cyl 5.0L
  • 1991 GMC C1500 Sierra SLE 8 Cyl 5.7L
  • 1991 GMC C1500 Sierra 8 Cyl 6.2L
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
Page 1 of 1 | Showing 1 - 7 of 7 results

Top Rated Products

Replacement Heater Core, without AC
$29.49( Review)
Great got here quick was the right part
Zachariah M.
VERIFIED PURCHASER
Replacement Heater Core, 8/6 Cyl., with AC
$26.99( Review)
Works great
William B.
VERIFIED PURCHASER

Popular Products

Product Questions & Answers

AC Delco Heater Core, 8/6 Cyl -
$96.49
Q:Is this heater core manufactured in USA?
Larry
A:BEST ANSWERHi Lawrence, thank you for reaching out! Upon checking, it is not disclosed where AC Delco had this manufactured. If interested, you can click the link below to order the part while stocks last. Do not forget to check the part's fitment to your vehicle before checking out. Have a great day! https://www.carparts.com/heater-core/ac-delco/ac1560059?can=cpab2020_csqa_20240608 Show less
Andrew B.
 
2 Questions, 1 AnswerView all Q&As >

Helpful Automotive Resources

Bad Heater Core Symptoms
Bad Heater Core SymptomsYou’ll also notice that the heater core, with its tanks and fins, looks just like a mini radiator.
What’s the Difference Between Your Car’s Air Conditioner & Heater?
What’s the Difference Between Your Car’s Air Conditioner & Heater?To clarify further, we’re going to discuss how both the heating and A/C systems work, and what they have in common.  How Your Car’s A/C Works
6 Signs of a Bad Radiator
6 Signs of a Bad RadiatorA common sign that something is wrong with the radiator is when your engine starts to overheat. This can be caused by a faulty thermostat. When a defective thermostat no longer opens, the engine will overheat and cause a breakdown. Leaks