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Radiator - ACDelco (21946)

Radiator - ACDelco (21946)

ACDelco part # 21946

ACDelcoMPN21946
Sale Price$660.86
Description : GM Genuine Parts Radiators are designed, engineered, and tested to rigorous standards, and are backed by General Motors. Radiators are heat exchangers, typically located in the front of the vehicle where air can flow through the fins and dissipate heat. Modern radiators are made from aluminum and plastic, while older vehicles used copper and brass. These radiators are designed to be corrosion resistant with optimal heat transfer characteristics. GM Genuine Parts are the true OE parts installed during the production of or validated by General Motors for GM vehicles. Some GM Genuine Parts may have formerly appeared as ACDelco GM Original Equipment (OE). ⚠ WARNING: Cancer and Reproductive Harm - www.P65Warnings.ca.gov
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Product Details

Description

GM Genuine Parts Radiators are designed, engineered, and tested to rigorous standards, and are backed by General Motors. Radiators are heat exchangers, typically located in the front of the vehicle where air can flow through the fins and dissipate heat. Modern radiators are made from aluminum and plastic, while older vehicles used copper and brass. These radiators are designed to be corrosion resistant with optimal heat transfer characteristics. GM Genuine Parts are the true OE parts installed during the production of or validated by General Motors for GM vehicles. Some GM Genuine Parts may have formerly appeared as ACDelco GM Original Equipment (OE). ⚠ WARNING: Cancer and Reproductive Harm - www.P65Warnings.ca.gov

Part Number (MPN)
21946
Brand
ACDelco
SKU
21946
UPC / GTIN
808709776284 / 00808709776284
Condition
New
Other Names
84224661
Brand
GM Genuine Parts
Coolant Level Indicator Port
No
Core Height
723.14<br />28.47
Core Material
Aluminum
Core Row Quantity
1
Core Thickness
2.36<br />60.03
Core Width
33.46<br />850
Down Flow Or Cross Flow Type
Cross Flow
Engine Oil Cooler Included
No
FAQ - Answer 1
No, an overheating engine could mean an issue with your radiator, but there are other pieces of the cooling system that could cause the engine to overheat. It is important to check for coolant leaks or a malfunctioning fan. If you look at the radiator and there is a lot of corrosion or holes there may be a problem with the radiator. Either way it is important to get the whole cooling system checked when your engine overheats.
FAQ - Question 1
My engine is overheating does this mean I need to replace my radiator?
Features & Benefits - Bullet 1
Lightweight; the radiators have a positive heat transfer to weight ratio
Features & Benefits - Bullet 2
Corrosion-resistant aluminum designed core helps optimize the radiators long lasting service life
Features & Benefits - Bullet 3
Some GM Genuine Parts may have formerly appeared as ACDelco GM Original Equipment (OE)
Features & Benefits - Bullet 4
GM Genuine Parts are designed, engineered and tested to rigorous standards, and are backed by General Motors
Features & Benefits - Bullet 5
GM Engineers design and validate OE parts specifically for your Chevrolet, Buick, GMC, or Cadillac vehicle
Features & Benefits - Bullet 6
GM regularly updates production and service part designs to integrate new materials and technologies
Frame Included
Yes
Height (in)
5.3
Inlet Diameter
2.22<br />56.5
Inlet Header Length
739<br />29.09
Inlet Header Width
134<br />5.28
Inlet Location
2
Internal Engine Oil Cooler
No
Internal Transmission Oil Cooler
Yes
Length (in)
44.5
Mounting Hardware Included
No
Mounting Type
Pin
Outlet Diameter
50.8<br />2.01
Outlet Header Length
742<br />29.21
Outlet Header Width
139<br />5.47
Outlet Location
Bottom Right
Programming Required
No
Radiator Cap Included
No
Signs of Wear & Troubleshooting - Section 1 - Bullet 1
Maintain proper coolant levels and check levels regularly. Also make sure to check coolants concentration because the water ratio can affect the freezing or boiling point. (Note: Never attempt to remove a surge or radiator cap while the engine is hot. Serious injury could result.)
Signs of Wear & Troubleshooting - Section 1 - Bullet 2
Replace coolant with a mixture of antifreeze and water according to the owner's manual recommendations.
Signs of Wear & Troubleshooting - Section 1 - Bullet 3
Evaluate radiator and radiator cap for leaks, corrosion, or worn cap gasket. Make sure to pressure test the cap.
Signs of Wear & Troubleshooting - Section 1 - Bullet 4
Periodically, remove bugs, leaves, and other debris from the front of the radiator. They can block airflow and substantially reduce cooling efficiency.
Tank Material
Plastic
Thermostat Included
No
Transmission Oil Cooler Distance between Fittings
11.5<br />292
Transmission Oil Cooler Fitting Diameter
0.83<br />21
Transmission Oil Cooler Fitting Gender
Female
Transmission Oil Cooler Fitting Type
Quick Connect
Transmission Oil Cooler Length
12.95<br />329
Weight (lb)
33.86
Width (in)
29.6

YearMakeModelBody & TrimEngine & Transmission
Vehicle #1
Year
Make
Model
Body & Trim
Engine & Transmission

BrandEquivalent Part Numbers

Rows per page:

0-0 of 0

BrandEquivalent Part Numbers
ACDelco
21919
APDI
8013690
Airtex
6V1013
Autokool
13690
CARQUEST Premium By WELLS
57-7749
CSF
3843
CryoMAX
13690

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ACDelco

Shop ACDelco auto parts at Restauco Parts. ACDelco is the only aftermarket parts brand backed by General Motors, offering both Original Equipment and premium aftermarket lines. Our ACDelco inventory includes Gold and Silver product lines covering brake pads, spark plugs, oil filters, batteries, sensors, ignition coils, and more. Every ACDelco part is designed to meet or exceed OEM specifications, ensuring reliable performance for GM vehicles and most other makes and models. Trust the brand that has been delivering automotive excellence for over 100 years.

Browse the Full ACDelco Parts Catalog

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