Identify Optronics Red LED Identification Bars by MPN
To identify a missing or damaged Optronics red identification bar, check the base first. A black polycarbonate housing with a separate ground wire points to a different family from the shorter stainless-base bar that grounds through its hardware. This guide compares three exact MPNs without treating them as direct substitutes.
Three identification bar designs
MCL70RS: slim 3-LED design
A 15-inch-wide red identification bar only 5/8 inch deep, with a black power lead and white ground lead. Its three diodes and thin body distinguish it from the other two assemblies.
MCL93RBP: nine LEDs on black base
The approximately 15.94-inch polycarbonate assembly has nine red LEDs, a brown power lead and separate white ground wire.
MCL97RK: nine LEDs on stainless base
This 14.25-inch bar has a stainless mounting base, brown power lead and self-grounding connection through the mounted base. Confirm a sound conductive ground path.
Optronics exact-model comparison
| Optronics MPN | LEDs | Overall dimensions (W x H x D) | Base | Power / ground |
|---|---|---|---|---|
| MCL70RS | 3 red LEDs | 15 x 1.375 x 0.625 in | Polycarbonate | Black power; white ground |
| MCL93RBP | 9 red LEDs | 15.938 x 1.469 x 1.625 in | Polycarbonate base | Brown power; white ground |
| MCL97RK | 9 red LEDs | 14.25 x 1.188 x 1.313 in | Stainless steel base | Brown power |
Identification light bars are not stop/turn/tail lamps. Their grounding designs differ: do not assume a one-wire, self-grounding bar replaces a two-wire model without verifying the installation.
Identification and inspection checks
- Read the part number on the original light if it remains visible; do not identify only by three red illuminated sections.
- Count the LEDs and compare the length of the complete light bar and the base colour.
- Inspect the mounting base for cracks or corrosion; a self-grounding stainless base needs electrical contact with the vehicle ground.
- Check whether the installation uses a separate white ground wire or grounds through the mounting fasteners.
- Examine the individual listing for exact condition and included hardware. UsedRVParts viewing and pickup are by appointment in Kelowna.
Identify the matching Optronics assembly
Check the individual product listing for exact contents, condition and availability.
Other trailer lighting references
For lights that perform stop, turn or backup functions, see our Optronics trailer combination-light comparison. For small individual clearance lamps, use the marker and clearance light reference.
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