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
1966
Grand Prix
My Garage
2
View Garage
1966
Pontiac
Grand Prix
Shop Parts
Filter Search
1951
Cadillac
Series 60 Fleetwood
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
Vinyl Tops
Tops, Modlings, Clips
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
Grand Prix
1966
Ignition & Electrical
Electrical Wiring
1966 Grand Prix
Electrical Wiring
Filters
12
24
36
48
60
96
120
Relevance
Best Selling
A-Z ↓
Z-A ↑
Highest Price ↑
Lowest Price ↓
Newest Arrivals
×
Product Type
Aftermarket
64
Performance
38
Restoration
44
Part Type
Accessory Fuse / Relay Wiring Kit
1
Accessory Wiring Junction Block Connector
2
Alternator Harness
1
Auto Trans Kickdown Solenoid Switch
1
Battery
15
Battery Relocation Kit
1
Brake Light Switch
1
Chassis Wire Harness
5
Chassis Wiring Harness Strap
1
Circuit Breaker
1
Clamp Value Pack
1
Console Wiring Harness
2
Courtesy Light
1
Courtesy Light Bracket
1
Courtesy Light Wiring Harness
1
Dashboard Wiring Harness
1
Distributor Wire Harness
1
Electrical Clamp
12
Engine Compartment Insulation
4
Engine Cooling Fan Motor Relay
2
Firewall Plate
1
Fuel Pump Relay
2
Fuse Block
2
Glove Box
1
Grommet
1
Headlight Relay
2
Headlight Wiring Harness
1
Heat Shield Insulator
5
Ignition Capacitor
1
Instrument Panel Light Socket
3
Neutral Safety Switch
3
Pigtail
3
Power Seat Recliner Actuator Wiring Harness Relay
1
Power Seat Wiring Harness
1
Power Window and Door Lock Wiring Harness
1
Rubber Stop Bumper Assortment
1
Spark Plug Boot Heat Sleeve
1
Spark Plug Wire Holder
3
Tachometer Wire Harness
2
Thermal Acoustic Insulation
7
Tie Strap and Clip
1
Transmission Wiring Harness
1
Tubing
1
Turn Signal Switch
1
Under Hood Light
1
Wire Separator
8
Wire Stripper
1
Wire Wrapping Tool
2
Wiring Harness Clip
2
Wiring Harness Tape
2
Wiring Relay
1
Uncategorized
29
Category
Audio Components
1
Back-Up Lamps
1
Charging Systems
16
Computers, Chips & Programmers
2
Convertible Top Hardware
1
Dash & Accessories
3
Electrical & Electrical Testing Tools
3
Electrical Wiring
147
Firewalls/Cowls
1
Fuel Pumps & Regulators
1
Gauges, Panels & Kits
1
Glove Boxes
1
Headlights
1
Ignition Components
2
Interiors Clips & Screws
2
Lamp Hardware
5
Lines
4
Pedal Pads
1
Shifters
2
Spark Plug Wires & Accessories
26
Speedometers & Tachometers
3
Starters
1
Steering Components
4
Tail Lamps
1
Tubing
9
Window Hardware
1
Price
$1 - $100
101
$101 - $200
10
$201 - $300
6
$301 - $400
2
$401 - up
27
Brand
American Autowire
6
Antigravity Batteries
15
Lectric Limited
1
Lokar
27
M&H
16
MSD
1
Painless Performance
38
Powermaster
1
RESTOPARTS
3
Revolution Electronics
1
Taylor
1
Thermo-Tec
13
Review Rating
ooooo
ooooo
18
ooooo
ooooo
17
ooooo
ooooo
3
ooooo
ooooo
1
ooooo
ooooo
1
Not Yet Reviewed
106
American Autowire
Wiring Harness Kit, American Autowire, Highway 15 Nostalgia
ooooo
ooooo
$1,812.99
Painless Performance
Cable Set, Battery Relocation, Painless Performance
2 Length Options
ooooo
ooooo
From
$92.99
SALE
Brackets, Underdash Lamp, 1964-77 GM
ooooo
ooooo
$7.99
Save an extra 14%
Use
USA250
at checkout
SALE
Circuit Breaker, Power Accessory, 1961-71, 40-Amp Bracket Mount
ooooo
ooooo
$16.99
Save an extra 13%
Use
USA250
at checkout
SALE
Rubber Conduit, Door Jamb, 1965-68 Cadillac/Pontiac & 1966-71 Riviera
ooooo
ooooo
$69.99
Save an extra 6%
Use
USA250
at checkout
Painless Performance
Wiring Harness, Engine, Painless Perf, LS Gen III, Standard Length
2 Color Options
ooooo
ooooo
From
$624.99
SALE
Lectric Limited
Wiring Harness, Dash Speaker, 1965 Cutlass/1963-68 Pontiac
ooooo
ooooo
$47.99
Save an extra $2.10
Use
USA250
at checkout
M&H
Wiring Harness, Dome Lamp, 1965-67 Bonn/Cat/GP, Center Roof Mounted
ooooo
ooooo
$62.99
M&H
Wiring Harness, Power Seat Motor and Adapter, 1964-75 Bonn/Cat/GP
ooooo
ooooo
$102.86
SALE
Connector, Transmission Kickdown Switch, 65-77 GM, TH400, 1-Terminal
ooooo
ooooo
$17.99
Save an extra 18%
Use
USA250
at checkout
KIT
Socket, Instrument Panel Lamp, 5/8" Hole, 15-Piece Kit (KIT)
ooooo
ooooo
$39.99
Discounted Kit
Save 9% with this bundle
Painless Performance
Wiring Connectors, GM Keyed Column Swap, Painless Performance
ooooo
ooooo
$29.99
Painless Performance
Wiring Adapter, Alternator, Painless Performance, Delco
ooooo
ooooo
$9.99
Painless Performance
Wiring Harness, Chassis, Painless Performance, Classic Muscle Car, 21-Circuit
ooooo
ooooo
$529.99
Painless Performance
Wiring Adapter, GM Keyed Column, Painless Performance, Column and Dimmer
ooooo
ooooo
$46.99
Socket, Instrument Panel Lamp, 5/8" Hole
ooooo
ooooo
$2.99
Lokar
Switch & Bracket, Back-up & Neutral Safety, Lokar (SET)
ooooo
ooooo
$58.99
M&H
Wiring Harness, Dash Extension, 1966 Bonn/Cat/GP, Dash to Heater or AC Indic.
ooooo
ooooo
$34.99
M&H
Wiring Harness, Power Window, 1965-66 Bonn/Cat/GP, Quarter Window LH or RH
ooooo
ooooo
$233.99
Painless Performance
Relay, Fuel Pump, Painless Performance, Waterproof
ooooo
ooooo
$53.99
Painless Performance
Wiring Adapter, Alternator, Painless Performance, GM, "CS" 130D Style
ooooo
ooooo
$18.99
Wiring Harness, 1964-73 Various Vehicles, Voltage Regulator Replacement
ooooo
ooooo
$6.99
M&H
Circuit Board Module, 1963-66 Bonn/Cat/GP, Transistor Ignition Replacement
ooooo
ooooo
$189.99
M&H
Wiring Harness, Tachometer, 1965-66 Bonn/Cat/GP
ooooo
ooooo
$74.99
Page 2 of 7 - 147 Items
«
1
2
3
4
5
»
Page 2 of 7 - 147 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