What is the low beam headlight bulb size for a 1975 Plymouth Roadrunner?

The 1975 Plymouth Roadrunner uses a H6024 bulb for the low beam headlights. We recommend upgrading to LED for better visibility.

What is the high beam headlight bulb size for a 1975 Plymouth Roadrunner?

The high beam bulb size for the 1975 Plymouth Roadrunner is N/A.

Why are my 1975 Plymouth Roadrunner headlights dim?

Dim headlights on a 1975 Plymouth Roadrunner can be caused by aging halogen bulbs, which lose brightness over time, or oxidation (cloudiness) on the plastic headlight lenses. Upgrading to a H6024 LED conversion kit can provide a significantly brighter and whiter light output.

Which bulb fits the 1975 Plymouth Roadrunner fog light?

The 1975 Plymouth Roadrunner 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 1975 Plymouth Roadrunner single or dual beam?

The 1975 Plymouth Roadrunner uses a dual bulb headlight system. This means you have separate bulbs for high and low beams.

Can I install LED bulbs on my 1975 Plymouth Roadrunner?

Yes, the 1975 Plymouth Roadrunner comes with standard halogen bulbs from the factory, but they can be upgraded to LED. You will need a H6024 LED conversion kit for the low beams.

Did the 1975 Plymouth Roadrunner change headlight bulb sizes from the previous year?

Yes — the 1975 Plymouth Roadrunner uses different bulb sizes than the 1974 model. The 1975 generation introduced this bulb configuration.

Is the 1975 Plymouth Roadrunner the first or last year to use H6024 bulbs?

The 1975 Plymouth Roadrunner is the only year in the 1975 generation to use the H6024 bulb for the low beam headlight.

How do I change the headlight on a 1975 Plymouth Roadrunner?

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 H6024 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 1975 Plymouth Roadrunner?

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 H6024 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 1975 Plymouth Roadrunner headlights?

A pair of halogen H6024 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 1975 Plymouth Roadrunner?

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 H6024 position are available as direct plug-and-play replacements.

The 1975 Plymouth Roadrunner has a unique bulb configuration not shared with adjacent model years.

Fitment Guaranteed for 1975 Plymouth Roadrunner

What Size Bulbs Does a 1975 Plymouth Roadrunner 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 1975 Plymouth Roadrunner Have?

The 1975 Plymouth Roadrunner utilizes a refined lighting configuration featuring 9 distinct bulb positions. It features a comprehensive lighting system powered by a dual-bulb halogen configuration using separate H6024 low beam and high beam bulbs for precise light distribution. This model belongs to the late years of the Roadrunner's 1968-1975 production span.

Can You Put LED Bulbs in a 1975 Plymouth Roadrunner?

Upgrading to LED is one of the most effective ways to modernize your Plymouth's appearance and safety profile. We recommend starting your upgrade with the H6024 low beams, as they see the most use. Adding a matching LED kit later will complete the look and ensure consistent lighting performance.

1975 Plymouth Roadrunner Bulb Size Chart

Position	Bulb Size	Shop
Low Beam	H6024	Buy H6024 →
Turn Signal Front	1157A	Buy 1157A →
Side Marker	168	Buy 168 →
Parking Light	1157	Buy 1157 →
Turn Signal Rear	1157	Buy 1157 →
Tail Light	1157	Buy 1157 →
Reverse Light	1156	Buy 1156 →
License Plate	168	Buy 168 →
Brake Light	1157	Buy 1157 →

How do the 1975 Plymouth Roadrunner's bulbs compare to other years?

The 1975 Plymouth Roadrunner changed bulb sizes from 1974. The previous model year used a different configuration.

This bulb configuration covers the 1975 model years. ← 1974

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Other Roadrunner Years

1974 1973 1972 1971 1970 1969 1968

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