{
    "lazyNodes": false,
    "abFitnotesFlag": false,
    "abCrawlReviews": false,
    "productOptionsCookie": false,
    "orderDelayFlag": false,
    "skipSessionCookie": false,
    "covidMessage": false,
    "fullTitleCookie": false,
    "nrLoggerCookie": false,
    "checkoutReviewCookie": false,
    "productOptionSeqCookie": false,
    "maintenanceFlag": false,
    "bufferETACookie": false,
    "multiShippingDiscountFlag": false,
    "newFitmentFlag": false,
    "surveyOptInFlag": false,
    "crossSellFlag": false,
    "skuMappingFlag": false,
    "paySplitCookie": false,
    "callDisableFlag": false,
    "zipPaymentFlag": "u",
    "hassleFreeReturn": false,
    "lifetimeReplacement": false,
    "cpn_off": false
}
Select your vehicle
Vehicle Info Required to Guarantee FitAdd Vehicle

AC Delco®
21650 GM Original Equipment Series Radiator

Tap image and pinch to zoom.
$294.99
$449.37Save: $154.38(34%)
Manufacturer #21650
Vehicle Info Required to Guarantee FitAdd Vehicle
Qty:
1

Highlights

Brand:
Core Dimensions:
34 x 17.25 x 1.13 in. Core Size
Automatic Transmission Cooler:
With Transmission Cooler
Recommended Use:
OE Replacement
Tank Material:
Plastic Tank
Core Material:
Aluminum Core
Color Finish:
Factory Finish
Product Fit:
Direct Fit
Series:
GM Original Equipment Series
Quantity Sold:
Sold individually
Warranty:
Lifetime AC Delco limited warranty
Prop 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.

Promotions:
Cooling Essentials
Interchange Part Number:
P2370, CU2370

Vehicle Fitment Information

Vehicle Name
Submodel
Engine
Fitment Information
1999 Chevrolet Silverado 1500
Base
8 Cyl 4.8L
2-Door, Standard Cab Pickup, 4-Speed, Automatic Transmission, Transmissionmfrcode : 4L60-E, Code Apc,Asa,Ats,Adp,Deg,Faa,Cal,Ajn,Bbl,Ccm,Aaf4,0117
1999 Chevrolet Silverado 1500
Base
8 Cyl 5.3L
3-Door, Extended Cab Pickup, 4-Speed, Automatic Transmission, Transmissionmfrcode : 4L60-E, Code Apc,Asa,Ats,Adp,Deg,Faa,Cal,Ajn,Bbl,Ccm,Aaf4,0117
1999 Chevrolet Silverado 1500
LS
8 Cyl 5.3L
3-Door, Extended Cab Pickup, 4-Speed, Automatic Transmission, Transmissionmfrcode : 4L60-E, Code Apc,Asa,Ats,Adp,Deg,Faa,Cal,Ajn,Bbl,Ccm,Aaf4,0117
1999 Chevrolet Silverado 1500
LS
8 Cyl 4.8L
3-Door, Extended Cab Pickup, 4-Speed, Automatic Transmission, Transmissionmfrcode : 4L60-E, Code Apc,Asa,Ats,Adp,Deg,Faa,Cal,Ajn,Bbl,Ccm,Aaf4,0117
1999 Chevrolet Silverado 1500
LT
8 Cyl 5.3L
3-Door, Extended Cab Pickup, 4-Speed, Automatic Transmission, Transmissionmfrcode : 4L60-E, Code Apc,Asa,Ats,Adp,Deg,Faa,Cal,Ajn,Bbl,Ccm,Aaf4,0117
Page 1 of 29 | Showing 1 - 5 of 144 results

Product Information

ACDELCO GM ORIGINAL EQUIPMENT RADIATORS

Trust ACDelco's GM Original Equipment radiators to reboot your cooling system with the precise fit and outstanding quality you can always rely on GM to deliver. Established in 1899, ACDelco manufactures original GM parts and premium OE replacement parts for other brands in the automotive aftermarket.

  • Sturdily built for dependable, long-lasting performance
  • GM original equipment ensures part is engineered to precise requirements
  • Made to withstand rust and premature wear
  • Lightweight design offers superior heat-transfer characteristics
Need help?Call our product expert1-866-529-0412
Chat with us
Mondays - Sundays7am - 11pm ET | 4am - 8pm PT
Warranty Policy
Right parts, guaranteed. If you find any defects, let us know within 60 days and we’ll take care of it. Check out our Warranty Policy for more details.
Shipping Policy
We ship fast so you can get on the road that much faster. Check out our Shipping Policy for more details.
Easy Return Policy
We’re only happy if you’re happy. If you’re not entirely satisfied with your order, you may be entitled to a refund. Check out our Return Policy for more details.

Product Q&A

0
does this radiator come with a drain plug?Steven C.Jan 07, 2025
Best Answer:Hi Steve, I am pleased to assist you. This radiator does not require a drain plug, as it is designed to function without one. This means that there is no need for a specific drain plug size for this radiator model. If your vehicle is compatible with the information provided on our website, click the link below to order and take advantage of our limited-time sale. I hope this helps, and enjoy shopping! <a href="https://www.carparts.com/radiator/ac-delco/ac21650?can=CPGG4850_CSQA_20250107" target="_blank">https://www.carparts.com/radiator/ac-delco/ac21650?can=CPGG4850_CSQA_20250107</a>
Grace G.STAFFJan 07, 2025
0
What size radiator plug fits this radiator?Steven C.Jan 07, 2025
Best Answer:Hi Steve, I am pleased to assist you. This radiator is designed for specific GM vehicles and typically includes a preinstalled drain plug. In many cases, this radiator does not require a separate or replacement drain plug. However, if you find that a drain plug is necessary—perhaps due to damage or loss—you should select one that matches the specifications of the radiator and your vehicle model. If your vehicle information matches this radiator, click the link below to order directly and take advantage of our current discounts while supplies last. I hope this helps, and enjoy shopping! <a href="https://www.carparts.com/radiator/ac-delco/ac21650?can=CPGG4850_CSQA_20250107" target="_blank">https://www.carparts.com/radiator/ac-delco/ac21650?can=CPGG4850_CSQA_20250107</a>
Grace G.STAFFJan 07, 2025

Customer Reviews

Genuine GM replacement. Perfect fit.
Michael B.
VERIFIED PURCHASER
Purchased on Feb 12, 2023
THE RADIATOR FIT EXACTLY AS IT SHOULD AND HAS GREAT QUALITY. SHIPPING WAS QUICK.
Oscar M.
VERIFIED PURCHASER
Purchased on Oct 13, 2023
Gm Original Equipment Series Radiator
Replacement radiator exact replacement.
It was an exact replacement for my truck.
Keith F.
VERIFIED PURCHASER
Purchased on Sep 17, 2019