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Rectangular crystal headlight, high-beam only, clear lens, metal housing

United Pacific Industries

United Pacific Industries 6" x 4" Crystal Headlight High Beam Only 31390 automotive specialty lighting

SKU CH-7W4C-SFX4X

A 6" x 4" crystal headlight for high-beam use, measuring 6.7 x 6.1 x 4.5 inches and weighing 1.29 lbs

  • Quality gradePerformance
  • Product typeBulbs
  • High-beam focused illumination for targeted visibility
  • 7 x 6.1 x 4.5 inch dimensions fit standard rectangular housings
  • Lightweight 1.29 lb construction eases installation and reduces vibration stress
  • Crystal lens design enhances light clarity for improved night driving

High-Beam Crystal Headlight

The United Pacific Industries 31390 is a 6" x 4" crystal headlight built for high-beam function only. Its rectangular lens measures 6.7 by 6.1 by 4.5 inches and weighs 1.29 lbs. It suits drivers replacing a dedicated high-beam unit on compatible vehicles.

Thermal Behaviour Under Load

The sealed crystal housing relies on passive airflow to manage heat during extended high-beam use. Sustained operation keeps the lens at a stable temperature without active cooling. The unit is not designed for continuous low-beam or fog-light duty.

How it compares

Measured against everything we stock in Headlights & Car Lighting, at today’s prices. Recalculated every night.

Price $35.99
Pricier than about 57% of the 921 comparable items (median $30.99).

Specifications

Product
Product typeBulbs
Quality gradePerformance

Questions about this item

Does the 1.29 lb crystal housing generate enough heat to melt the original 6.7 x 6.1 x 4.5 inch mounting bucket?

The sealed-beam crystal unit produces normal halogen heat; the original metal bucket is designed to handle it, but verify the bucket is intact and the aim screws are not stripped before installing.

What existing headlight hardware must the vehicle already have to accept this 31390 high-beam unit?

The vehicle needs a 6" x 4" sealed-beam bucket with a three-terminal high-beam socket and the original retaining ring or clips to lock the 1.29 lb crystal lens in place.

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