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Radiator
Authorized Dealer
Radiator
BrandGM Genuine PartsLearn More
Qty/Vehicle1
ConditionNew
Includes: (1) Radiator, Hardware
$000
•In Stock•Fast Shipping1
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Product Specifications
Features & Benefits
- •Direct OE fit - no modifications needed
- •Meets or exceeds manufacturer specs
- •24-month warranty included
- •Fast Shipping — ships same day before 3 PM ET
BrandGM Genuine Parts
Part Number21686
Part TypeRadiator
ConditionNew
Body Length17.000 IN
Body MaterialStainless Steel
Compatibility
Vehicle Compatibility
Guaranteed to fit 0 vehicles from Infinity--Infinity
No compatibility data available
Frequently Asked Questions
We're always here to help. If you can't find your answer, ask Rydon - our AI assistant will help you out.
What vehicles does this Radiator fit?
This GM Genuine Parts Radiator (Part #21686) fits specific vehicles. Use the compatibility checker on this page to verify fitment for your vehicle.
Is this an OEM or aftermarket part?
This is a premium aftermarket Radiator by GM Genuine Parts, designed to meet or exceed OEM specifications with strict quality control standards.
What warranty is included?
This GM Genuine Parts Radiator is backed by a 24-month limited warranty covering defects in materials and workmanship from date of purchase.
How long does shipping take?
Fast shipping — orders before 3 PM ET ship the same day. Most arrive within 3-5 business days.
Can I return this if it does not fit?
30-day money-back guarantee. Return unused parts in original packaging for full refund.
Compatibility
Vehicle Compatibility
Guaranteed to fit 0 vehicles from Infinity--Infinity
No compatibility data available
Product Specifications
Brand
GM Genuine Parts
Part Type
Radiator
Body Material
Stainless Steel
Down Flow Or Cross Flow Type
Cross Flow
Part Number
21686
Body Length
17.000 IN
Core Material
Aluminum
Engine Oil Cooler Included
No
Body Length17.000 IN
Body MaterialStainless Steel
Core MaterialAluminum
Down Flow Or Cross Flow TypeCross Flow
Engine Oil Cooler IncludedNo
Frame IncludedYes
Grade TypeStandard Replacement
Hanger IncludedYes
Inlet Diameter1.81 IN
Inlet Header Length24.88 IN
Inlet Inside Diameter2.250 IN
Inlet TypePipe Connection
Length (In)46.5 in
Mounting Hardware IncludedNo
Mounting TypePin
Outlet Diameter2.01 IN
Outlet Header Length24.88 IN
Outlet Outside Diameter2.000 IN
Outlet TypeTip
Overall Length27.750 IN
Radiator Cap IncludedNo
Tank MaterialPlastic
Thermostat IncludedNo
Transmission Oil Cooler Fitting Diameter0.63 IN
Transmission Oil Cooler Fitting TypeQuick Connect
Transmission Oil Cooler IncludedYes
Transmission Oil Cooler Length12.91 IN
Transmission Oil Cooler TypePlate
Body Height7.500 IN
Body Width9.500 IN
Coolant Level Indicator PortNo
Core Height23.31 IN
Core Row Quantity1
Core Thickness2.15 IN
Core Width34 IN
Faq - Answer 1My engine is overheating does this mean I need to replace my radiator?
Faq - Question 2No, 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 o
Features Benefits - Bullet 1Lightweight; the radiators have a positive heat transfer to weight ratio
Features Benefits - Bullet 2Corrosion-resistant aluminum designed core helps optimize the radiators long lasting service life
Features Benefits - Bullet 3Some GM Genuine Parts may have formerly appeared as ACDelco GM Original Equipment (OE)
Features Benefits - Bullet 4GM Genuine Parts are designed, engineered and tested to rigorous standards, and are backed by General Motors
Features Benefits - Bullet 5GM Engineers design and validate OE parts specifically for your Chevrolet, Buick, GMC, or Cadillac vehicle
Features Benefits - Bullet 6GM regularly updates production and service part designs to integrate new materials and technologies
FinishAluminized
Height (In)8.38 in
Inlet Header Width5.67 IN
Inlet LocationTop Left
Inlet Offset2.000 IN
Inlet Quantity1
Integral Transmission Oil CoolerYes
Internal Engine Oil CoolerNo
Internal Transmission Oil CoolerYes
Outlet Header Width5.16 IN
Outlet LocationBottom Right
Outlet Quantity1
Product DescriptionGM 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 wh
Programming RequiredNo
ReversibleNo
ShapeOval
Signs Of Wear Troubleshooting - Section 1 - Bullet 2Maintain 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 remo
Signs Of Wear Troubleshooting - Section 1 - Bullet 3Replace coolant with a mixture of antifreeze and water according to the owner's manual recommendations.
Signs Of Wear Troubleshooting - Section 1 - Bullet 4Evaluate 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 5Periodically, remove bugs, leaves, and other debris from the front of the radiator. They can block airflow and substantially reduce cooling efficiency.
Transmission Oil Cooler Distance Between Fittings11.5 IN
Transmission Oil Cooler Fitting GenderFemale
Transmission Oil Cooler Plate Quantity7
TunableNo
Universal Or Specific FitSpecific
Weight (Lb)27.5 lb
Width (In)34.62 in
Check if this fitsShop worry-free by verifying fitment first. If the part doesn't fit, we'll make it right or refund you. Learn more
Main Image
Click to expand
Radiator
Authorized Dealer
Call for Price
888-477-2530Our parts specialists are ready to help you find the best price.
Part #:21686
OE REPLACEMENT
Radiator
|
Part #:21686
|
Radiator
Call for Price
888-477-2530Our parts specialists are ready to help you find the best price.
Quantity:
1
In Stock·10 or more available
Fast delivery between Mon, Jun 22 to Mon, Jun 22
Ships To:Key Features
OEM-Equivalent QualityMeets/exceeds factory specs
American BusinessMaryland since 1986
24-Month WarrantyLimited coverage on every part
Fast Same Day ShippingWe ship all orders the same business day before cutoff
Product Specs
BrandGM Genuine Parts
Part Number21686
Part TypeRadiator
ConditionNew
Body Length17.000 IN
Body MaterialStainless Steel
Core MaterialAluminum
Down Flow Or Cross Flow TypeCross Flow
Compatibility
Vehicle Compatibility
Guaranteed to fit 0 vehicles from Infinity--Infinity
No compatibility data available
Questions & Answers
This GM Genuine Parts Radiator (Part #21686) fits specific vehicles. Use the compatibility checker on this page to verify fitment for your vehicle.
This is a premium aftermarket Radiator by GM Genuine Parts, designed to meet or exceed OEM specifications with strict quality control standards.
This GM Genuine Parts Radiator is backed by a 24-month limited warranty covering defects in materials and workmanship from date of purchase.
Fast shipping — orders before 3 PM ET ship the same day. Most arrive within 3-5 business days.
30-day money-back guarantee. Return unused parts in original packaging for full refund.
Have a Question?
Ask Marvin, our Car Expert
Offline
Things to Know
About This Radiator
This GM Genuine Parts automotive component is engineered to meet or exceed OEM specifications for reliable performance and long service life.
Key Features
- Meets or exceeds OEM specifications
- Direct-fit replacement design
- Rigorously tested for durability
- Professional-grade construction
- Backed by manufacturer warranty
Signs This Part Needs Replacement
- •Unusual noises from the component area
- •Decreased vehicle performance
- •Warning lights on dashboard
- •Visible wear or damage
- •Failed vehicle inspection
GM Genuine Parts
Trusted Automotive Brand
GM Genuine Parts is a trusted manufacturer of quality automotive parts.
View all GM Genuine Parts productsInstallation Guide
Moderate
1-3 hours
Tools Needed
Basic hand toolsTorque wrenchVehicle service manual
Frequently Asked Questions
WARNING: Handling passenger or off-highway motor vehicle parts can expose you to chemicals such as phthalates and lead, which are known to the State of California to cause cancer and reproductive harm. To minimize exposure, service the vehicle in a well-ventilated area, wear gloves, and wash your hands. For more information see www.P65Warnings.ca.gov/motor-vehicle-parts