Browse Categories
Browse by Manufacturer
For international shipping
 inquiries please email us at:

70- 79 GM 28.25" Copper/Brass Crossflow Radiator 3 row core w/ Heater return

<< Previous in Radiators by year Next in Radiators by year >>
Copper/brass GM radiator Made in USA
MSRP: $550.00
Price: $475.00
You Save: $75.00 (14 %)
This product is in stock now!!
Part Number: CR 03620 AR
Manufacturer: Classic Radiator
Manufacturer Part No: CR 03620 AR
Custom Built to Order by Classic Radiator in the USA

1 Year Guarantee

 This is a Custom-Built radiator! Although it shows “zero” in stock, we do keep the parts needed to build this radiator on hand, so please call us to place your order and we will build the radiator within 1-5 business days. Call for a more accurate time estimate. Please see below for customization information.

 If you go into your local auto parts store and order this radiator, they will likely offer you a plastic tank / aluminum core radiator of inferior quality that will not fit perfectly or look anything like an original and isn’t even made in the USA. We are aware that parts-store radiators are much less expensive than ours. But they do not fit as well, nor look correct like ours do. Most importantly, they also won't cool your valuable engine nearly as well!

 This GM replacement radiator has a 26¼" core width between the tanks, and is 18½" tall including side channels. It has three rows of ½" tubes and an 8½" transmission cooler with 5/16" inverted flare fittings in the outlet tank. The upper hose neck has an outside diameter of 1½". The lower neck is 1½" O.D. Additionally, there is a ¾" Heater Return Line located below the filler neck. 

100% MADE IN USA 1 Year Guarantee

Before ordering this radiator, please confirm that the radiator you need has a core width of 26¼" between the tanks and a 1½” diameter top hose connection. This radiator has three rows of ½" tubes on 9/16" centers. This radiator has a 1½" diameter lower neck.  Applications for this radiator include:

70-74 Eldorado
70-74 Coupe DeVille
70-74 Fleetwood, Brougham
70-74 Sedan Deville
70-74 Limousine, Commercial Chassis
70-74 Calais

Chevrolet Truck
73-79 Suburban
73-79 C/K Series Pickup
73-79 Blazer (Full Size)
73-79 P-Series Van
72-79 G-Series Van

GMC Truck
73-79 Jimmy (Full Size)
73-77 C/K Series Pickup 
73-79 P-Series Van
72-79 G-Series Van
73-79 Suburban

74-76 Delta 88, Regency 98
74-76 Custom Cruiser
75-76 Cutlas Supreme

1976 LeMans

This radiator can be custom made in multiple versions to suit your specific needs. The part number listed here is a standard 3-row core with an AUTOMATIC transmission cooler built into the passenger side tank. It can be built WITHOUT the transmission cooler for MANUAL transmission applications.

 It can also be built with a high efficiency style core that provides about 20% better cooling without increasing the core thickness or decreasing the fan clearance. By placing the tubes on closer centers to each other, more surface area is built into the core (without sacrificing airflow) for better heat transfer.

Note: Models built after 1979 had a 1¼” inlet neck (where the top hose connects on the driver’s side). This radiator has the drain plug on the drivers side near the steering box. 

If you want to confirm that this is the correct application for your vehicle, please contact us via phone or e-mail. It does not have a heater return neck as do most generic replacement radiators.

100% Made in USA 1 Year Guarantee

Cap-A-Radiator from Teena Nawabi on Vimeo.