What is the low beam headlight bulb size for a 1978 Honda Accord?

The 1978 Honda Accord uses a 4000 LED bulb for the low beam headlights. We recommend upgrading to LED for better visibility.

What is the high beam headlight bulb size for a 1978 Honda Accord?

The high beam bulb size for the 1978 Honda Accord is H5001 LED.

Why are my 1978 Honda Accord headlights dim?

Dim headlights on a 1978 Honda Accord can be caused by aging halogen bulbs, which lose brightness over time, or oxidation (cloudiness) on the plastic headlight lenses. Upgrading to a 4000 LED LED conversion kit can provide a significantly brighter and whiter light output.

Which bulb fits the 1978 Honda Accord fog light?

The 1978 Honda Accord typically does not come with factory fog lights in all trim levels. If your vehicle is equipped with them, check the manual as sizes can vary by trim.

Is the 1978 Honda Accord single or dual beam?

The 1978 Honda Accord uses a dual bulb headlight system. This means you have separate bulbs for high and low beams.

Can I install LED bulbs on my 1978 Honda Accord?

Yes, the 1978 Honda Accord comes with standard halogen bulbs from the factory, but they can be upgraded to LED. You will need a 4000 LED LED conversion kit for the low beams.

Did the 1978 Honda Accord change headlight bulb sizes from the previous year?

Yes — the 1978 Honda Accord uses different bulb sizes than the 1977 model. The 1978 generation introduced this bulb configuration.

Is the 1978 Honda Accord the first or last year to use 4000 LED bulbs?

The 1978 Honda Accord is the only year in the 1978 generation to use the 4000 LED bulb for the low beam headlight.

How do I change the headlight on a 1978 Honda Accord?

Turn off the vehicle and open the hood. Locate the headlight assembly from behind, remove the dust cover or retaining clip, disconnect the wiring harness, twist the old 4000 LED bulb counter-clockwise to remove it, then insert the new bulb and reassemble. The whole process typically takes 10 to 30 minutes per side depending on accessibility.

Are LED headlights legal for a 1978 Honda Accord?

LED bulbs used off-road or in auxiliary lights are legal everywhere. For on-road headlight use, legality varies by state. Many states allow LED retrofits as long as the beam pattern meets DOT standards. For the best legal compliance, choose a DOT-approved 4000 LED LED kit that is designed as a direct replacement and produces a proper cutoff pattern without excessive glare.

How much does it cost to replace 1978 Honda Accord headlights?

A pair of halogen 4000 LED bulbs costs $15 to $40, while LED conversion kits run $25 to $60 per pair. If you have a shop do the work, expect an additional $20 to $50 in labor per bulb. Replacing them yourself at home saves the labor cost and usually takes under 30 minutes.

What is the difference between halogen and LED for a 1978 Honda Accord?

Halogen bulbs produce a warm yellow light (around 3200K), last 500 to 1000 hours, and draw more power. LED bulbs emit a brighter white light (5000-6000K), last 25,000+ hours, and use less energy. LED upgrades for the 4000 LED position are available as direct plug-and-play replacements.

The 1978 Honda Accord has a unique bulb configuration not shared with adjacent model years.

Fitment Guaranteed for 1978 Honda Accord

What Size Bulbs Does a 1978 Honda Accord Use?

Correct headlight, fog light, and tail light bulb sizes. Sourced from OEM catalog data.

Installation Difficulty

Easy (Plug and Play)

Est. Replacement Cost

$15 - $40 (Halogen) / $30+ (LED)

What Lighting System Does the 1978 Honda Accord Have?

When it comes to nighttime visibility, the 1978 Honda Accord relies on an arrangement of 7 specialized bulbs. It features a standard lighting system powered by a dual-bulb halogen configuration using separate 4000 LED low beam and H5001 LED high beam bulbs for precise light distribution. This model belongs to the early years of the Accord's 1976-2022 production span.

Can You Put LED Bulbs in a 1978 Honda Accord?

Upgrading to LED is one of the most effective ways to modernize your Honda's appearance and safety profile. We recommend starting your upgrade with the 4000 LED low beams, as they see the most use. Adding a matching H5001 LED LED kit later will complete the look and ensure consistent lighting performance.

1978 Honda Accord Bulb Size Chart

Position	Bulb Size	Shop
Low Beam	4000 LED	Buy 4000 LED →
High Beam	H5001 LED	Buy H5001 LED →
Side Marker	168	Buy 168 →
Reverse Light	1156	Buy 1156 →
Turn Signal Rear	1156	Buy 1156 →
Dome Light	DE3175	Buy DE3175 →
Trunk Light	DE3022	Buy DE3022 →

How do the 1978 Honda Accord's bulbs compare to other years?

The 1978 Honda Accord changed bulb sizes from 1977. The previous model year used a different configuration.

The 1979 model switched to a different bulb configuration.

This bulb configuration covers the 1978 model years. ← 1977 1979 →

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Other Accord Years

2022 2021 2020 2019 2018 2017 2016 2015 2014 2013 2012 2011 2010 2009 2008 2007 2006 2005 2004 2003 2002 2001 2000 1999 1998 1997 1996 1995 1994 1993 1992 1991 1990 1989 1988 1987 1986 1985 1984 1983 1982 1981 1980 1979 1977 1976

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