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After hunting through many dealships trying to find the wire harness I need for a new vehicle after finding one found the price to be $125.00 I stumbled across etrailer on the net and lo and behold found what needed for less than half the price of the dealers list. Thank you etrailer!!!!
Dan, New Auburn, WI
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Oval Two-Bulb Trailer Clearance and Side Marker Light, 2 Wire - Red

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MC66RB

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Code: MC66RB
Price: $2.65
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Shipping Weight: 0.50 pounds
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Order $150.00 to qualify for free shipping
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4" L x 2-1/16" W x 1-1/16" D; PC-rated; corrosion resistant; replaceable lens and bulbs; surface mount on 3" centers; 2-wire; 2-bulb incandescent 


Oval Two-Bulb Trailer Clearance and Side Marker Light, Two-Wire - Red

This oval, dual-bulb light can be used as a clearance or side marker light. This PC-rated light functions as both a marker and clearance light when mounted properly at a 45 degree angle. This red light measures 4" long x 2-1/16" wide x 1-1/16" deep. The molded plastic housing and durable lens provide all-weather protection against corrosion. The two-bulb design greatly increases the light output. The light features a replaceable, snap-on lens and easy-to-replace bulbs. The light mounts on standard 3" centers, and the two-wire design includes the lead and ground wires to mount to any surface.

  • Red, oblong light functions as clearance, side marker light
  • PC-rated light - functions as both a clearance and side marker when mounted at a 45 degree angle
  • Weather and corrosion resistant
  • Dual bulbs greatly increase light output
  • Replaceable lens and bulbs
  • Surface mounts on 3" centers
  • Two-wire design includes lead and ground wires for mounting to all surfaces
  • Dimensions: 4" L x 2-1/16" W x 1-1/16" D

Manufacturer Cross Reference
Light will work as an exact replacement for:
Uni Bond # ML2043R
Truck Lite # 26301R
Grote # 45262
Peterson # 135R
Bargman # 30-58-005

Manufacturer Specifications

Two-bulb clearance and side marker light. PC-rated light functions as both a clearance and side marker light when properly mounted on a 45 degree angle. Two-bulb design optimizes light output. Features snap-on, replaceable lens and easy to change replaceable bulb. Mounts on industry standard 3" centers. All-weather, molded plastic housing and durable lens protect against corrosion. Contains both lead wire and ground wire for mounting to all surfaces.

dimensions of light

MC-66RB Red Oval Two-Bulb Marker and Clearance Light by Optronics, Inc.


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If you need help selecting a product or have questions, you can contact our Customer Service Team at 1-800-298-8924.

Related Items
Code Name Price
A194B Replacement Side Marker Light Bulb # 194 $0.85
A66RB Replacement Red Lens for MC66RB $1.45


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