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
1981
Regal
My Garage
2
View Garage
1981
Buick
Regal
Shop Parts
Filter Search
1979
Pontiac
LeMans
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
Emblems
Reproduction, Aftermarket, Kits, Hardware
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
Emblems
Reproduction, Aftermarket, Kits, Hardware
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
Bumpers & Hardware
Bumpers, Hardware, Inserts, Brackets
Convertible Tops & Accessories
Tops, Moldings, Boots, Hardware
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
Emblems
Reproduction, Aftermarket, Kits, Hardware
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
250th Anniversary Sale
Save up to 20% on Restoration - use code: USA250
Home
Regal
1981
Cooling & Heating
1981 Buick Regal
Cooling & Heating
Categories
Air Conditioning
Climate Control Panels & Components
Fans
Heater Blower Motors
Heater Cores
Heaters
Hvac Ducts & Accessories
Oil & Fluid Coolers
Overflow Tanks & Catch Cans
Radiators
Thermostats, Housings & Fillers
Water Pumps
1981 Buick Regal
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
51
Performance
83
Restoration
89
Part Type
A/C Compression Fitting Seal O-Ring
1
A/C Compressor
10
A/C Compressor Bracket
2
A/C Compressor Clutch
2
A/C Condenser
1
A/C Condenser and Evaporator Assembly
1
A/C Control Switch
2
A/C Evaporator Core
1
A/C Evaporator Core Case Drain Tube Kit
1
A/C Evaporator Core Kit
2
A/C Receiver Drier
1
Accessory Drive Belt
1
Air Distribution Duct
1
Auto Trans Oil Cooler Assembly
1
Automatic Transmission Oil Cooler Bolt
1
Auxiliary Engine Cooling Fan Switch
1
Bolt Kit
5
Cooling System Adapter
2
Electric Engine Water Pump
3
Electrical Bulkhead Connector
2
Engine Coolant / Antifreeze
1
Engine Coolant Additive
1
Engine Coolant By-Pass Hose
2
Engine Coolant Fan Mounting Kit
1
Engine Coolant Filler Neck
1
Engine Coolant Filler Neck Cap
2
Engine Coolant Recovery Tank
2
Engine Coolant Recovery Tank Cap
2
Engine Coolant Recovery Tank Hose
1
Engine Coolant Refractometer
1
Engine Coolant Temperature Sensor
6
Engine Coolant Thermostat
5
Engine Coolant Thermostat/Water Outlet Assembly
1
Engine Coolant Water Outlet
8
Engine Coolant Water Outlet Seal
1
Engine Cooling Control Module
1
Engine Cooling Fan
2
Engine Cooling Fan Assembly
24
Engine Cooling Fan Bracket
2
Engine Cooling Fan Clutch
5
Engine Cooling Fan Motor Wiring Harness
6
Engine Cooling Fan Shroud
2
Engine Cooling Fan Spacer Kit
1
Engine Water Pump
11
Engine Water Pump Assembly
1
Engine Water Pump Fitting
1
Firewall
1
Firewall Grommet
3
Firewall Plate
1
HVAC Blower Motor
3
HVAC Blower Motor Relay
1
HVAC Blower Motor Resistor
1
HVAC Control Duct Hose
14
HVAC Defrost and Heater Air Duct Hose
6
HVAC Heater Control Valve
1
HVAC Heater Core
2
Intake Manifold Fitting
1
Pigtail
1
Power Steering Line
1
Radiator
33
Radiator Cap
3
Radiator Coolant Hose
7
Radiator Drain Petcock
1
Radiator Mount Bushing
1
Radiator Support Air Deflector
1
Thermal Acoustic Insulation
1
Tube Fitting
1
Wheel
2
Uncategorized
12
Category
Air Conditioning
33
Climate Control Panels & Components
1
Fans
51
Heater Blower Motors
8
Heater Cores
3
Heaters
4
Hvac Ducts & Accessories
28
Oil & Fluid Coolers
1
Overflow Tanks & Catch Cans
8
Radiators
53
Thermostats, Housings & Fillers
23
Water Pumps
21
Price
$1 - $100
137
$101 - $200
27
$201 - $300
6
$301 - $400
11
$401 - up
42
Brand
AC Delco
6
Aeromotive
5
ARP
3
Be Cool
7
Champion Cooling
4
Cold Case Radiators
8
Derale
2
Eddie Motorsports
2
Edelbrock
1
Evans Coolant
3
Griffin Radiator
2
Hedman Hedders
1
Intellitronix
1
Lokar
1
Maradyne
38
March Performance
1
Mishimoto
2
Mr. Gasket
1
NotcHead
3
Old Air Products
21
Performance by OPGI
1
RESTOPARTS
7
Tuff Stuff
8
U.S. Radiator
18
UMI Performance
1
Vintage Air
10
Weiand Performance
1
Review Rating
ooooo
ooooo
36
ooooo
ooooo
26
ooooo
ooooo
8
ooooo
ooooo
2
ooooo
ooooo
1
Not Yet Reviewed
150
Vintage Air
Heat & Cool Unit, Vintage Air, Mini Gen II (SET)
ooooo
ooooo
$999.99
SALE
AC Condenser, 1978-88 G-Body, Passenger Side Lines
2 Style Options
ooooo
ooooo
$216.99
Save an extra 14%
Use
USA250
at checkout
Fan Shroud, 3" Depth, Chrome
ooooo
ooooo
$26.99
Derale
Fan Blade, Derale, 17", Chevy 283/327
ooooo
ooooo
$82.99
Vintage Air
HVAC Louver Panel, Universal Under Dash, Vintage Air Slimline, Brushed Aluminum (SET)
ooooo
ooooo
$119.99
Heat Sink Oil Cooler, Transmission, Dual Pass 1/4" NPT
3 Style/Color Options
ooooo
ooooo
$79.99
RESTOPARTS
Water Outlet, 15°, Aluminum, Swivel w/O-Ring, Chevrolet V8
2 Finish Options
ooooo
ooooo
From
$29.99
Water Pump, 1978-87 El Camino, 78-83 Malibu, 78-88 Monte Carlo, 81-82 Regal
ooooo
ooooo
$196.99
SALE
U.S. Radiator
Radiator, Std Core, 80-88 G-Body, V8, 3-Row, w/AC, 17" x 26-1/4"
4 Transmission/Rows Options
ooooo
ooooo
$646.99
Save an extra 8%
Use
USA250
at checkout
SALE
Blower Motor Switch, 1978-85 G-Body, w/AC
ooooo
ooooo
$12.99
Save an extra 20%
Use
USA250
at checkout
SALE
Old Air Products
Duct Hose, GM Vehicles, Heater & A/C, 3", Vinyl, 6-Foot Length
ooooo
ooooo
$24.99
Save an extra $1.20
Use
USA250
at checkout
SALE
AC Delco
Clutch, AC Compressor, 1966-82, A6 Style, 5" Single Groove Pulley
ooooo
ooooo
$142.99
Save an extra 19%
Use
USA250
at checkout
U.S. Radiator
Radiator, Std Core, 73-77 CH/EC/MC L6, 78-85 Regal V6, 17" x 20-3/4", PS. Fill
6 Transmission/Rows Options
ooooo
ooooo
From
$519.99
Be Cool
Radiator Module, Aluminum, Be Cool, 1978-87 G-Body, AT, 32" x 19", LH Upr/RH Lwr
2 Finish Options
ooooo
ooooo
From
$1,499.99
Weiand Performance
Water Pump, Weiand Action +Plus, Chevrolet SB, Long, w/"Twisted Snout" design
2 Finish Options
ooooo
ooooo
From
$195.99
SALE
AC Delco
Radiator Cap, 1969-88 G-Body, RC-27, 15lbs., ACDelco
ooooo
ooooo
$15.99
Save an extra 14%
Use
USA250
at checkout
Champion Cooling
Radiator, Alum. American Eagle, 1978-88 G-Body, 2Row 1" Tube, 18.25" H x 31" W
ooooo
ooooo
$339.99
SALE
Temperature Sending Unit, 1980-88 Malibu/Monte Carlo/El Camino, V8, w/Gauges
ooooo
ooooo
$49.99
Save an extra 12%
Use
USA250
at checkout
SALE
Old Air Products
Heater Control Valve, Inline, Vac, Normally Closed, 3" Long, 5/8" inlet/outlet
ooooo
ooooo
$38.99
Save an extra 11%
Use
USA250
at checkout
SALE
Water Outlet, 1978-81, V8, Threaded Hole
ooooo
ooooo
$14.99
Save an extra 15%
Use
USA250
at checkout
Water Pump, 1978-87 El Camino, 78-83 Malibu, 78-88 Monte Carlo, 81-82 Regal
ooooo
ooooo
$78.99
Be Cool
Radiator, Be Cool, 1978-83 All/1984-87 MC/EC, AT, 32" x 19", LH Upper/RH Lower
2 Finish Options
ooooo
ooooo
From
$749.99
SALE
RESTOPARTS
Cap, Overflow Tank, 1978-88 G-Body, Non-Vented
ooooo
ooooo
$6.49
Save an extra 9%
Use
USA250
at checkout
SALE
AC Drier, 1977-84 G-Body/Cadillac, w/Tube Kit
ooooo
ooooo
$45.99
Save an extra 7%
Use
USA250
at checkout
Page 3 of 10 - 230 Items
«
1
2
3
4
5
»
Page 3 of 10 - 230 Items
«
1
2
3
4
5
»
Free Ground Shipping
Free Ground Shipping on orders over $299 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