What is the low beam headlight bulb size for a 1990 Jeep Wagoneer?

The 1990 Jeep Wagoneer uses a H4703 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 1990 Jeep Wagoneer?

The high beam bulb size for the 1990 Jeep Wagoneer is H4701 LED.

Why are my 1990 Jeep Wagoneer headlights dim?

Dim headlights on a 1990 Jeep Wagoneer can be caused by aging halogen bulbs, which lose brightness over time, or oxidation (cloudiness) on the plastic headlight lenses. Upgrading to a H4703 LED LED conversion kit can provide a significantly brighter and whiter light output.

Which bulb fits the 1990 Jeep Wagoneer fog light?

The 1990 Jeep Wagoneer uses a LED Fog Light bulb for the fog light position.

Is the 1990 Jeep Wagoneer single or dual beam?

The 1990 Jeep Wagoneer uses a dual bulb headlight system. This means you have separate bulbs for high and low beams.

Can I install LED bulbs on my 1990 Jeep Wagoneer?

Yes, the 1990 Jeep Wagoneer comes with standard halogen bulbs from the factory, but they can be upgraded to LED. You will need a H4703 LED LED conversion kit for the low beams.

Does the 1990 Jeep Wagoneer have fog lights?

Yes, the 1990 Jeep Wagoneer takes a LED Fog Light bulb for the fog light position.

Did the 1990 Jeep Wagoneer change headlight bulb sizes from the previous year?

No — the 1990 Jeep Wagoneer uses the same bulb sizes as the 1989 model. This configuration has been consistent across the 1985–1990 generation.

Is the 1990 Jeep Wagoneer the first or last year to use H4703 LED bulbs?

The 1990 Jeep Wagoneer is the last year in the 1985–1990 generation to use the H4703 LED bulb for the low beam headlight.

How do I change the headlight on a 1990 Jeep Wagoneer?

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 H4703 LED bulb counter-clockwise to remove it, then insert the new bulb and reassemble. Note: Jeep vehicles use a CANbus system, so LED replacements may need an anti-flicker decoder. The whole process typically takes 10 to 30 minutes per side depending on accessibility.

Are LED headlights legal for a 1990 Jeep Wagoneer?

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 H4703 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 1990 Jeep Wagoneer headlights?

A pair of halogen H4703 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 1990 Jeep Wagoneer?

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 H4703 LED position are available as direct plug-and-play replacements. Since the Jeep uses CANbus monitoring, choose a CANbus-compatible LED kit to avoid dashboard errors.

The 1990 Jeep Wagoneer is the last model year to use this bulb configuration (1985–1990).

Fitment Guaranteed for 1990 Jeep Wagoneer

What Size Bulbs Does a 1990 Jeep Wagoneer 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 1990 Jeep Wagoneer Have?

Owners of the 1990 Jeep Wagoneer will find a total of 12 lighting elements throughout the vehicle's exterior. It features an extensive lighting system powered by a dual-bulb halogen configuration using separate H4703 LED low beam and H4701 LED high beam bulbs for precise light distribution. This model belongs to the late years of the Wagoneer's 1965-1990 production span. Note that Jeep vehicles typically feature a CANbus electrical monitor that checks for specific bulb resistance.

LED Flicker Warning

This vehicle is known to use a CANbus system. Installing standard LEDs may cause flickering.

Use a CANbus decoder.

Can You Put LED Bulbs in a 1990 Jeep Wagoneer?

For a Jeep built for the road and trail, LED upgrades provide the high-contrast lighting needed for better obstacle detection. We recommend starting your upgrade with the H4703 LED low beams, as they see the most use. Adding a matching H4701 LED LED kit later will complete the look and ensure consistent lighting performance. Because Jeep utilizes a CANbus system, standard LED bulbs may cause "bulb out" errors on your dashboard. Always opt for "Error-Free" or CANbus-ready kits which include the necessary resistors. Don't forget the LED Fog Light fog lights; switching these to LED can dramatically improve your visibility in adverse weather.

1990 Jeep Wagoneer Bulb Size Chart

Position	Bulb Size	Shop
Low Beam	H4703 LED	Buy H4703 LED →
High Beam	H4701 LED	Buy H4701 LED →
Fog Light	LED Fog Light	Buy LED Fog Light →
Brake Light	912 LED	Buy 912 LED →
Side Marker	194 LED	Buy 194 LED →
Turn Signal Front	2357NA LED	Buy 2357NA LED →
Turn Signal Rear	1156 LED	Buy 1156 LED →
Reverse Light	1156	Buy 1156 →
License Plate	168	Buy 168 →
Map Light	906	Buy 906 →
Parking Light	2357NA	Buy 2357NA →
Trunk Light	561	Buy 561 →

How do the 1990 Jeep Wagoneer's bulbs compare to other years?

The 1990 Jeep Wagoneer uses the same bulbs as the 1989 model.

This bulb configuration covers the 1985–1990 model years. ← 1989

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Other Wagoneer Years

1989 1988 1987 1986 1985 1984 1983 1982 1981 1980 1979 1978 1977 1976 1975 1974 1973 1972 1971 1970 1969 1968 1967 1965

Other Vehicles That Use H4703 LED Bulbs

1993 Chrysler Imperial 1993 Chrysler New Yorker 1991 GMC Jimmy