Please finalize your shopping cart. Scheduled maintenance will begin at 1 AM PT, and will last 30 minutes.
1‑800‑243‑8355
Help
Contact Us
Free Shipping
Shipping Information
Manufacturer Rebates
How To Order
Payment Options
Return Policy
FAQs
Emissions Regulations
Gift Card Balance
Sponsorship Opportunities
Company
Request Catalog
OPGI Blog
Hours & Location
History
Frequent Buyer Points
Volume Discounts
Price Match Guarantee
Kit Swap Savings
Reviews
Careers
Clearance Sale
Archives
My Account
My Orders
My Wish List
As seen on
1964
K20
My Garage
38
View Garage
1964
Chevrolet
K20
Shop Parts
Filter Search
1980
Chevrolet
Malibu
Shop Parts
Filter Search
1972
GMC
C15/C1500
Shop Parts
Filter Search
1977
Cadillac
Seville
Shop Parts
Filter Search
1984
Chevrolet
K20
Shop Parts
Filter Search
1968
Buick
Skylark
Shop Parts
Filter Search
1955
Cadillac
Series 75
Shop Parts
Filter Search
1991
Cadillac
Seville
Shop Parts
Filter Search
1966
Pontiac
Catalina
Shop Parts
Filter Search
1966
Pontiac
Tempest
Shop Parts
Filter Search
1938
Cadillac
Series 60
Shop Parts
Filter Search
1944
Cadillac
Series 62
Shop Parts
Filter Search
1967
Pontiac
GTO
Shop Parts
Filter Search
1948
Cadillac
Series 63
Shop Parts
Filter Search
1946
Cadillac
Series 61
Shop Parts
Filter Search
1995
Cadillac
Fleetwood
Shop Parts
Filter Search
1950
Cadillac
Series 60
Shop Parts
Filter Search
1940
Cadillac
Series 63
Shop Parts
Filter Search
1972
GMC
Sprint
Shop Parts
Filter Search
1981
Chevrolet
Suburban
Shop Parts
Filter Search
1975
Chevrolet
Chevelle
Shop Parts
Filter Search
1976
Chevrolet
Chevelle
Shop Parts
Filter Search
1964
Cadillac
Eldorado
Shop Parts
Filter Search
1969
Chevrolet
Chevelle
Shop Parts
Filter Search
1957
GMC
Blue Chip
Shop Parts
Filter Search
1981
GMC
Caballero
Shop Parts
Filter Search
1985
Chevrolet
Monte Carlo
Shop Parts
Filter Search
1966
Pontiac
Bonneville
Shop Parts
Filter Search
1949
Cadillac
Series 75
Shop Parts
Filter Search
1960
Cadillac
Eldorado
Shop Parts
Filter Search
1977
Chevrolet
Chevelle
Shop Parts
Filter Search
2021
Cadillac
Escalade
Shop Parts
Filter Search
1984
GMC
C25/C2500
Shop Parts
Filter Search
1990
Cadillac
Eldorado
Shop Parts
Filter Search
1983
Chevrolet
Malibu
Shop Parts
Filter Search
1986
GMC
Jimmy
Shop Parts
Filter Search
2015
Chevrolet
Malibu
Shop Parts
Filter Search
1973
GMC
K15/K1500
Shop Parts
Filter Search
Shop All Parts
+ Add Vehicle
Catalogs
Cart
Have a Question?
Ask our Experts
Mon‑Fri 8:00‑4:30 PT
Experts Offline
Interior
Door Handles & Hardware
Door & Window Handles, Door Hinges
Fasteners & Hardware
Bolts, Clips, Screws, Ties, Straps, Washer, Nuts
Gauges & Accessories
Gauges, Panels, Kits, Sending Units
Interior Accessories
Armrests, Carpet, Flooring, Consoles, Dash, Door, Glove Box
Keys & Locks
Hardware, Keys, Locks, Sets, & Switches
Mirrors & Hardware
Mirrors, Mounting Hardware
Exterior
Decals
Decals, Body Stripes, Misc
Exhaust
Mufflers, Headers, Pipes, Mainfolds, Tips, Kits
Fasteners & Hardware
Bolts, Clips, Screws, Ties, Straps, Washer, Nuts
Gaskets & Seals
Adhesives, Gaskets, Seals, Weatherstripping
Keys & Locks
Hardware, Keys, Locks, Sets, & Switches
Lamps & Lenses
Headlights, Lamps, Lenses, Bulbs, Hardware
Mirrors & Hardware
Mirrors, Mounting Hardware
Wheels & Accessories
Lug Nuts, Bolts, Studs, Wheels, Accessories
Body Parts & Trim
Door Handles & Hardware
Door & Window Handles, Door Hinges
Mirrors & Hardware
Mirrors, Mounting Hardware
Moldings
Front End, Rear, Side, Window, Hardware
Sheet Metal & Body Panels
Doors, Hoods, Fenders, Quarter, Trunk, Floor, Armrest
Trunk Panels & Accessories
Mats, Dividers, Hardware, Accessories
Window
Glass, Motors, Regulators, Hardware
Suspension & Brakes
Brake Systems
Disc, Drum, Master Cylinders, Boosters, Pumps, Valves
Chassis & Suspension
Bushings, Mounts, Chassis, Steering, Suspension
Fasteners & Hardware
Bolts, Clips, Screws, Ties, Straps, Washer, Nuts
Engine & Drivetrain
Air & Fuel Delivery
Air Cleaners, Filters, Carburetors, Pumps, Tanks, Manifolds
Cooling & Heating
Air Conditioning, Controls, Fans, Motors, Cores, Radiators, Thermostats, Heaters, Pumps, Ducts
Decals
Decals, Body Stripes, Misc
Drivetrain
Differentials, Driveshafts, Chaines, Shifters, Transmissions, Bearings, Seals
Engines & Components
Belts, Pulleys, Camshafts, Heads, Oiling Systems, Engines
Exhaust
Mufflers, Headers, Pipes, Mainfolds, Tips, Kits
Fasteners & Hardware
Bolts, Clips, Screws, Ties, Straps, Washer, Nuts
Fittings & Hoses
Fittings, Clamps, Brackets, Hoses, Lines, Plugs, Tubing, Valves
Gaskets & Seals
Adhesives, Gaskets, Seals, Weatherstripping
Ignition & Electrical
Alternators, Wiring, Horns, Starters, Distributors
Oils, Fluids & Sealer
Oils, Fluids, Grease, Lubricants, Grease, Cleaners, Sealers, Glues
Windshield Washer
Bottles, Pumps, Arms, Motors, Switches, Hardware
Audio & Electric
Gauges & Accessories
Gauges, Panels, Kits, Sending Units
Ignition & Electrical
Alternators, Wiring, Horns, Starters, Distributors
Mobile Electronics
Antennas, Radios, Speakers, GPS, iPod, Bluetooth
Tools & More
Books
Owners Manuals, Service Manuals, History
Car Care & Paint
Covers, Cleaners, Waxes, Polishes, Paints, Coatings, Dyes, Markers
Fasteners & Hardware
Bolts, Clips, Screws, Ties, Straps, Washer, Nuts
Gifts & Apparel
Shirts, Jackets, Hats, Plates, Garage Decor
Tools & Shop Equipment
Brake, Electrical, Engine, Fuel, Hand, Suspension, Wheel, Tire
×
We use cookies to ensure that we give you the best experience on our website. Click
here
for more information.
Got It
Bonus! Extended! ★
Free ground shipping $99 + up to 20% Savings - use code: USA250
Home
K20
1964
Cooling & Heating
1964 K20
Cooling & Heating
Categories
Air Conditioning
Fans
Heater Blower Motors
Heater Cores
Heaters
Hvac Ducts & Accessories
Overflow Tanks & Catch Cans
Radiators
Thermostats, Housings & Fillers
Water Pumps
1964 K20
Cooling & Heating
Filters
12
24
36
48
60
96
120
Relevance
Best Selling
A-Z ↓
Z-A ↑
Highest Price ↑
Lowest Price ↓
Newest Arrivals
×
Product Type
Aftermarket
43
Performance
48
Restoration
33
Part Type
A/C Compressor
8
A/C Compressor and Condenser Kit
4
A/C Compressor Bracket
2
A/C Condenser and Evaporator Assembly
1
A/C Control Switch
1
A/C Evaporator Core Kit
2
Alternator Bracket
1
Cooling System Adapter
2
Electric Engine Water Pump
5
Engine Coolant Fan Mounting Kit
1
Engine Coolant Recovery Tank
1
Engine Coolant Recovery Tank Hose
1
Engine Coolant Temperature Sensor
3
Engine Coolant Thermostat
1
Engine Coolant Thermostat/Water Outlet Assembly
1
Engine Cooling Control Module
1
Engine Cooling Fan Assembly
22
Engine Cooling Fan Bracket
2
Engine Cooling Fan Motor Wiring Harness
5
Engine Cooling Fan Spacer Kit
1
Engine Water Pump
10
Engine Water Pump Assembly
1
Firewall Grommet
3
HVAC Blower Motor
1
HVAC Blower Motor Resistor
1
HVAC Control Duct Hose
14
HVAC Defrost and Heater Air Duct Hose
6
HVAC Heater Blower Relay
1
HVAC Heater Core
2
Pigtail
1
Radiator
6
Radiator Coolant Hose
4
Radiator Mount Bushing
1
Thermal Acoustic Insulation
1
Uncategorized
8
Category
Air Conditioning
20
Fans
39
Heater Blower Motors
3
Heater Cores
2
Heaters
1
Hvac Ducts & Accessories
26
Overflow Tanks & Catch Cans
3
Radiators
11
Thermostats, Housings & Fillers
2
Water Pumps
18
Price
$1 - $100
61
$101 - $200
28
$201 - $300
5
$301 - $400
7
$401 - up
23
New Arrival
New
11
Brand
AC Delco
2
Aeromotive
7
Champion Cooling
2
Cold Case Radiators
1
Eddie Motorsports
2
Lokar
1
Maradyne
38
NotcHead
3
Old Air Products
16
Performance by OPGI
1
RESTOPARTS
1
Tuff Stuff
16
U.S. Radiator
5
Vintage Air
13
Review Rating
ooooo
ooooo
15
ooooo
ooooo
9
ooooo
ooooo
4
ooooo
ooooo
1
Not Yet Reviewed
95
Tuff Stuff
AC Compressor, Tuff Stuff, Sanden SD508 Style, R-134A, 2V-Groove Pulley
7 Finish Options
ooooo
ooooo
From
$449.99
Maradyne
Fan, Electric, Maradyne Jetstreme II, Dual, 27" x 16.3", 3400 CFM, 28.5-Amp
2 Type Options
ooooo
ooooo
From
$481.99
Champion Cooling
Radiator, Aluminum, Champion, 1961-66 Pont FS, 1965-66 Cut, 22.5" H x 25.25 W
4 Type Options
ooooo
ooooo
From
$299.99
Champion Cooling
Radiator, Alum. Amricn Eagle, 61-66 Pont FS, 65-66 Cut, 2Row, 1" Tube, 25.25" W
ooooo
ooooo
$339.99
Vintage Air
AC Safety Switch, Trinary, Vintage Air, For Electric Fans
3 Option Options
ooooo
ooooo
From
$45.99
NEW
U.S. Radiator
Radiator, Std Core, 1963-66 GM Truck/Suburban, 230 CI 6Cyl, 17-3/8" x 18-1/2"
4 Transmission/Rows Options
ooooo
ooooo
From
$583.99
SALE
Old Air Products
Duct Hose, GM Vehicles, Heater & A/C, 1-¾", Cloth, 6-Foot long
ooooo
ooooo
$53.99
Save an extra 8%
Use
USA250
at checkout
Vintage Air
Bracket Set, AC Compressor, 1969+ SBC Long Pump, Passenger Side Mount (SET)
ooooo
ooooo
$129.99
SALE
Old Air Products
Duct Hose, GM Vehicles, Heater & A/C, 4", Vinyl, 6-Foot Length
ooooo
ooooo
$34.99
Save an extra 15%
Use
USA250
at checkout
NEW
Heater Blower Switch, 1964-72 GM Truck, w/o AC
ooooo
ooooo
$15.99
NEW
Vintage Air
Vintage Air Gen 5 SureFit Complete, 1964-66 Chevy Truck, V8 (SET)
2 Option Options
ooooo
ooooo
$2,469.99
NEW
Vintage Air
Vintage Air Gen 5 SureFit Complete, 1964-66 Chevy Truck, 6-Cyl (SET)
ooooo
ooooo
$2,579.99
NEW
Vintage Air
Vintage Air Gen 5 SureFit Complete, 1964-66 Chevy Truck, 6-Cyl (SET)
ooooo
ooooo
$2,579.99
Water Pump, 66-74 Pont/Buick/Olds, 68-74 Chev/EC, L6, 230ci/250ci, 3.87" Hub Ht
ooooo
ooooo
$42.99
NEW
Vintage Air
Evaporator Set, Vintage Air Gen 5 SureFit, 1964-66 Chevy Truck, w/o Factory AC (SET)
2 Option Options
ooooo
ooooo
$1,499.99
Maradyne
Sending Unit, Temperature, Maradyne, 195-Degree
ooooo
ooooo
$29.99
SALE
Old Air Products
Duct Hose, GM Vehicles, Heater & A/C, 2-1/2", Cloth, 6-Foot Long
ooooo
ooooo
$63.99
Save an extra 11%
Use
USA250
at checkout
Thermostat, 195-Degree, High-Flow, Stainless Steel
ooooo
ooooo
$11.99
Tuff Stuff
Water Pump, Tuff Stuff Cast Iron, Chevy BB Short Pump, SuperCool Flow
6 Finish Options
ooooo
ooooo
From
$171.99
NEW
U.S. Radiator
Radiator, HE Core, 1963-66 GM Truck/Suburban, 230 CI 6Cyl, 17-3/8" x 18-1/2"
4 Transmission/Rows Options
ooooo
ooooo
From
$712.99
SALE
Old Air Products
Duct Hose, GM Vehicles, Heater & A/C, 2", Cloth, 6-Foot Long
ooooo
ooooo
$54.99
Save an extra $2.10
Use
USA250
at checkout
Maradyne
Fan, Electric, Maradyne Jetstreme II, Dual, 26" x 3.23", 2310 CFM, 14.4-amp
2 Included Options
ooooo
ooooo
From
$341.99
Vintage Air
Bracket Set, Alternator, 1969+ SBC Long Pump, Driver Side Mount (SET)
ooooo
ooooo
$149.99
Radiator Hose, 12", Chrome Caps, Stainless Steel
ooooo
ooooo
$48.99
Page 2 of 6 - 125 Items
«
1
2
3
4
5
»
Page 2 of 6 - 125 Items
«
1
2
3
4
5
»
Free Ground Shipping
Free Ground Shipping on orders over $99 in the contiguous United States.
Shop Clearance
Save up to 55% on huge clearance deals on hundreds of items.
Earn Points for Free Parts
Earn points for every dollar you spend with OPGI’s Frequent Buyer Rewards Program.
Price Match Guarantee
We’ll price match any currently advertised retail price offered by a retail competitor.
Select Your Vehicle
Find parts that fit your vehicle
GM Cars
GM Trucks
Make
Model
Year
Go