1966 Pontiac Acadian Bulb Size Chart

Bulb sizes may vary by trim, factory lighting package, region, production date, and previous modifications. Verify the bulb number on your existing bulb before buying.

Last database update: May 2026. Manual review status: Not yet manually reviewed.

Verify before buying: check the bulb number printed on your existing bulb, confirm your trim and factory lighting package, and review the seller's fitment notes.

Disclosure: We may earn a commission from links marked Affiliate. Unmarked retailer links may be plain search links. Always verify bulb fitment before purchasing.

1966 Pontiac Acadian Bulb Size Chart

Position	Bulb Code	Aliases	Trim / Package	Factory Type	Confidence	Review	Notes	Shop
Turn Signal Front	1157	—	Standard listing	Halogen	High	Pending	Verify trim, factory lighting package, and the bulb number on the existing bulb.	Amazon
Low Beam	H6024	—	Standard listing	Halogen	High	Pending	Dual-beam bulb; verify factory housing and lighting package.	Amazon
Reverse Light	1156	—	Standard listing	Halogen	Medium	Pending	Verify trim, factory lighting package, and the bulb number on the existing bulb.	Amazon
Brake Light	1157	—	Standard listing	Halogen	High	Pending	Verify trim, factory lighting package, and the bulb number on the existing bulb.	Amazon
Parking Light	1157	—	Standard listing	Halogen	Medium	Pending	Verify trim, factory lighting package, and the bulb number on the existing bulb.	Amazon
Turn Signal Rear	1157	—	Standard listing	Halogen	High	Pending	Verify trim, factory lighting package, and the bulb number on the existing bulb.	Amazon
Tail Light	1157	—	Standard listing	Halogen	High	Pending	Verify trim, factory lighting package, and the bulb number on the existing bulb.	Amazon
High Beam	H6024	—	Standard listing	Halogen	High	Pending	Dual-beam bulb; verify factory housing and lighting package.	Amazon

1966 Pontiac Acadian Fitment Notes

Across the 1966-1987 production range, our database shows changes in the listed Low Beam, License Plate, High Beam positions. Use the chart above for this 1966 model, then confirm the bulb number in your vehicle before buying.

Known fitment limitations

factory HID or LED packages may use different parts
fog lights may depend on equipment package
aftermarket headlight assemblies may use different bulbs
regional models and production-date splits may differ

See an incorrect bulb size? Submit a correction.

How do the 1966 Pontiac Acadian's bulbs compare to other years?

The 1967 model switched to a different bulb configuration.

This bulb configuration covers the 1966 model years. 1967 →

Finding the best installation guide...

Other Acadian Years

1987 1986 1985 1984 1983 1982 1981 1980 1979 1978 1977 1976 1971 1970 1969 1968 1967

More from Pontiac

6000 6000 STE Astre Aztek Beaumont Bonneville Catalina Executive

Other Vehicles That Use H6024 Bulbs

2006 Hummer H1 2006 Jeep TJ 2006 Jeep Wrangler 1998 Bentley Turbo R 1997 Land Rover Defender 90 1997 Mazda MX-5 Miata

Frequently Asked Questions

Our database lists H6024 for the 1966 Pontiac Acadian low beam headlights. Verify the bulb number on your existing bulb and confirm your trim or factory lighting package before buying.

Our database lists H6024 for the 1966 Pontiac Acadian high beam position. Some vehicles vary by trim, lighting package, or previous housing changes.

Dim headlights on a 1966 Pontiac Acadian can come from aging halogen bulbs, cloudy lenses, weak electrical connections, or an incorrect bulb. Confirm the listed H6024 size against the bulb in the housing before choosing a replacement or upgrade.

The 1966 Pontiac Acadian does not have a fog light bulb listed in our current database. If your vehicle has fog lights, verify the bulb in the housing or owner's manual before buying.

The 1966 Pontiac Acadian uses a single bulb (dual filament) headlight system. This means one bulb controls both high and low beams.

LED upgrades are available for many H6024 applications, but fitment, beam pattern, dashboard warnings, and road-use legality can vary. Use products that list your exact bulb family, such as H6024, and verify the factory housing before buying.

Access varies by engine bay layout and headlight housing. Before disassembly, confirm the listed H6024 low beam size on the existing bulb or owner's manual, then follow the service procedure for your exact trim.

Rules for LED headlight retrofits vary by location and by housing type. Avoid products that create glare or lack road-use compliance claims, and check local requirements before using an LED conversion on public roads.

Replacement cost depends on bulb technology, brand, and labor access. Common halogen H6024 replacements are usually cheaper than LED conversion kits. Check seller fitment notes before comparing prices.

Halogen bulbs and LED replacements differ in output, heat behavior, beam pattern, and electronics. A correct bulb code does not guarantee a correct LED beam pattern, so verify physical fit and seller compatibility notes for the 1966 Pontiac Acadian.

1966 Pontiac Acadian Bulb Size Chart

1966 Pontiac Acadian Bulb Size Chart

1966 Pontiac Acadian Fitment Notes

How do the 1966 Pontiac Acadian's bulbs compare to other years?

Other Acadian Years

More from Pontiac

Other Vehicles That Use H6024 Bulbs

Frequently Asked Questions

What is the low beam headlight bulb size for a 1966 Pontiac Acadian?

What is the high beam headlight bulb size for a 1966 Pontiac Acadian?

Why are my 1966 Pontiac Acadian headlights dim?

Which bulb fits the 1966 Pontiac Acadian fog light?

Is the 1966 Pontiac Acadian single or dual beam?

Can I install LED bulbs on my 1966 Pontiac Acadian?

How do I change the headlight on a 1966 Pontiac Acadian?

Are LED headlights legal for a 1966 Pontiac Acadian?

How much does it cost to replace 1966 Pontiac Acadian headlights?

What is the difference between halogen and LED for a 1966 Pontiac Acadian?