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Trailer Clearance or Side Marker Light w/ Weathertight Plug - Incandescent - Amber Lens
(2623 reviews)
Price: $5.65
In Stock
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Trailer Clearance or Side Marker Light w/ Weathertight Plug - Incandescent - Amber Lens
Part Number: MC70AB
In Stock
$5.65
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- All Info
- Reviews (2623)
- Q & A (0)
- Videos (1)
- Photos
Optronics Trailer Lights - MC70AB
Highlights
- Bright, Reliable Marker Light: Incandescent bulb provides clear amber visibility for safety.
- Built-In Reflex Reflector: Eliminates need for a separate reflector to meet lighting requirements.
- Durable ABS Housing: Stands up to vibration and road wear for long service life.
- Simple 2-Wire Hookup: Weathertight plug keeps moisture out and makes connection easy.
- Standard Size Fit: 5-3/16" x 2" with 4-13/16" mounting holes aligns with common trailer mounts.
- DOT P2 Rated: Delivers a 90° light spread for proper clearance or side marker function.
Features to know about
Reliable Trailer Visibility: Durable Incandescent Clearance Light
When you just need a dependable light that gets the job done, this Optronics amber clearance or side marker light delivers. It uses a standard incandescent bulb that’s easy to replace and puts out steady light for clear visibility. Measuring 5-3/16" long by 2" tall by 1" thick, it’s built into a durable ABS housing with an amber lens that stands up well to regular use on the road.
Simplified Mounting: Surface-Mount Design with Weathertight Plug
You don’t need fancy brackets or sealed housings to make this work. The surface-mount setup installs directly onto your trailer with mounting holes spaced 4-13/16" apart (center to center). The 2-wire design with a weathertight plug makes hookup simple and provides a solid connection you can count on in everyday conditions.
Built-In Reflex Reflector: Extra Safety Without Extra Parts
This light includes a built-in reflex reflector, so you don’t have to add a separate reflector to meet DOT requirements. It’s already P2 rated, meaning it throws light 45 degrees to either side for a total 90-degree pattern that’s bright from the front or rear when properly mounted. That’s one less part to buy and one less thing to line up during install.
Dependable Output: Consistent Power Draw at 12.8V
At 12.8 volts, the light draws 0.422 amps—plenty of brightness without putting strain on your electrical system. Compatible with standard 12V DC setups, it’s a simple, trustworthy way to keep your trailer visible and compliant mile after mile. And it’s backed by a 3-year warranty for extra peace of mind.
Specs
Dimensions
- Overall dimensions: 5-3/16" long x 2" tall x 1" thick
- Distance between mounting holes (center on center): 4-13/16"
Electrical
- Bulb type: incandescent
- Power draw at 12.8V: 0.422 amps
- System compatibility: 12V DC
Ratings and Compliance
- DOT compliance: P2 rated
Warranty
- Warranty: 3-Year warranty
MC70AB Optronics Trailer Clearance or Side Marker Light w/ Weathertight Plug - Reflector - Incandescent - Amber Lens - P2 Rated
Alternate part number: MC-70AB
Video of Trailer Clearance or Side Marker Light w/ Weathertight Plug - Incandescent - Amber Lens
Videos are provided as a guide only. Refer to manufacturer installation instructions and specs for complete information.
Video Transcript for Hands-On with the Trailer Clearance or Side Marker Light w/ Weathertight Plug
Ratings & Reviews
4.9
2623 reviews
by:
Richard
03/21/2018
Replaced old markers with these new updated LEDs - fit was perfect. The quality, price per item, and shipping keeps me as a return customer.
by:
Steve
11/16/2021
Super fast shipping
Thank you!
Thank you!
by:
Jerry B
01/09/2015
Good product , good products
by:
MONTE-R&D PARTS
07/20/2015
GOOD PRICES ON GOOD LIGHTS.
by:
Leron/Frank Lechel
10/24/2025
by:
Jim
12/16/2021
by:
Mariah
08/24/2022
by:
John
10/13/2026
These style of bulbs came off an older enclosed trailer my girlfriend owns for her floor cleaning business. Most of them didn't work and all of them had faded so that they were mostly clear and faded. Not only did I get new bulbs but I wasn't forced into upgrading the entire trailer to led bulbs.
by:
WTH
04/29/2026
High quality, inexpensive marker light. Easy to install, it happened to be in my mailbox as I was departing with the trailer so I just popped it in. Matches the OEM lights on the trailer.
by:
John in Vancouver
07/05/2021
I bought 5 of these amber lights for the front of my trailer, and 5 red counterparts for the back, and similar oval side lights too, to replace all of the 50-year-old corroded lights on my 1970 Shasta M1400. I am super pleased with them, as they look period-appropriate, and are very bright as well. The only issue I had was that the Shastas of that period used the aluminum skin of the trailer as the ground, so there is no "ground wire." On a couple of them, the caulking I put under the lights made the ground screw not find the metal skin to ground the circuit. So just a note to be careful when you put the caulk on the back of the light when you are installing. Make sure you don't caulk over, and thus insulate, the ground plate. Btw, this was my first purchase from etrailer.. and in the past year, I have purchased probably another $xxxx of stuff for our trailer. Great selection, great service. This website really should be your first stop when modernizing your "vintage" trailer.
John V.
7/6/2022
A year after purchasing these, I continue to be very pleased with these lights. I actually replaced all 20 of the marker lights and the big tail lights with these LED lights from e-trailer. I have had only one marker light lose its ground connection, which I remedied by replacing the sheet metal mounting screw with a slightly large screw. As noted above, this is not a problem with the LED lights, but rather, with the vintage trailers system of grounding through the sheet metal skin of the trailer, rather than providing a positive and negative wire lead to each light. People often stop us at camp grounds to ask questions about our old shasta, and one person even marveled that the lights were still working after 50 years. A good testament to how natural they look.
by:
Susan
10/25/2026
Although they did come a day later than expected they were exactly what he was looking for. Ordering was very easy on line and packaging was well done. We would order from them again.
by:
John
10/08/2026
The exact product I was looking for. Most of the existing drywall bulbs had lost their color even though some of the bulbs still worked.
by:
Harvey C
05/18/2018
As per your request here is a photo of the installation of the running lights that I purchased from etrailer. I have included a photo of the original light fixtures that I replaced. The originals were proprietary to Winnebago Industries, but have not been available for some time. The top piece that the lights mount on are made of a plastic material & was molded to accept the fixtures into a small recessed area. As a consequence, I could find no replacements at the local suppliers. I found the MC68RB fixtures on your web site & felt sure that they would fit the recessed area. They did fit, & I was able to install them with some common sense adjustments to the new fixture & the area that received the fixture:
1 added another wire to provide ground for the light.
2 drilled a hole to accommodate the wires in the center of area to receive the fixture, as the original hole was set to one side.
3 mounting holes were wider than new fixture - used one of the original holes & used a self drilling screw on the other.
We are happy with the installation, and in our opinion there is very little difference in appearance of the area between original & replacement provided by your company. There are at least 2 models (View & Nation) that used the original, global-bright 122R/122Y, sold between 2005 & 20013 from what I can tell.
I no longer have the good camera that took the photo of the original photo. The photo of the replacement fixtures was taken by a smart phone, hence, less quality of photo. Sorry the quality is so poor.
1 added another wire to provide ground for the light.
2 drilled a hole to accommodate the wires in the center of area to receive the fixture, as the original hole was set to one side.
3 mounting holes were wider than new fixture - used one of the original holes & used a self drilling screw on the other.
We are happy with the installation, and in our opinion there is very little difference in appearance of the area between original & replacement provided by your company. There are at least 2 models (View & Nation) that used the original, global-bright 122R/122Y, sold between 2005 & 20013 from what I can tell.
I no longer have the good camera that took the photo of the original photo. The photo of the replacement fixtures was taken by a smart phone, hence, less quality of photo. Sorry the quality is so poor.
by:
Dean
04/30/2018
Light was an identical replacement. No issues, great service and fast service. Will buy again from etrailer if I have to again.
Dean
4/30/2019
Theyve been working great. Hardest part was finding out the proper part number from the trailer manufacturer to order the right one. The products are still working great.
by:
Scott
08/03/2018
In the process of detailing my 2003 motorcycle trailer to get it looking good again. Clearance lights needed replacement. The original red lights were now faded pink for goodness sake! Replaced all 20 lights with the thin-line red and amber side marker lights. Replacement couldn't be more simple; remove original lights, snap in new. Exact fit and everything worked perfectly. Now, once the new tires and wheels get here we'll be in good shape! The new lights definitely make you say, "no way that trailer's 15 years old" :-)
by:
Charles T.
04/10/2012
to see at night the following lights were added to my custom built trailer for night time safety.
1- Side mount red and yellow fender light which only works when either the brakes or turn signal are in use.
2- Front Clearance lights, which give additional lighting at night when approaching on coming vehicles.
1- Side mount red and yellow fender light which only works when either the brakes or turn signal are in use.
2- Front Clearance lights, which give additional lighting at night when approaching on coming vehicles.
by:
John G
01/25/2019
Light work great!!!
I always buy from etrailer Customer service and fast delivery
I always buy from etrailer Customer service and fast delivery
John G.
1/26/2020
Still working after a year later going in and out of saltwater [Two Thumbs Up]
by:
Perry E.
03/28/2017
These running lights work great. I use them on my boat trailer which is exposed to a lot of salt water. No problems, for they are a sealed light. For the price I bought extras but haven't had to use them. It's been about a year now.
by:
Michael
10/27/2026
As ordered. On time.
by:
Henry
07/27/2019
Just what I need for my motorhome. Arrived much sooner than I expected. Installation was a snap.
Henry Z.
7/28/2020
Great.
by:
Mark
08/05/2015
I purchased this light assembly and a rubber grommet to replace the right marker light on my Karavan trailer. It fit perfectly and had the proper 2 pin connector. Ordering was easy and it arrived promptly.
by:
John
09/21/2026
Took 11 days to arrive.
by:
Jg
12/20/2017
Broke one of my warning lights and stretched out the rubber grommets. Perfect fit and matched my existing lights like nothing ever happened. Awesome price and was delivered quickly. You have a customer for life thank you.
by:
Joe
09/06/2026
As described
by:
Fred S.
03/25/2015
As a returning customer, I am pleased with your product's and service. The red and amber clearance lights are for my 1967 MCI Greyhound bus RV conversion.
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See what our Experts say about this Optronics Trailer Lights
- 5.5" Wide x 2" Tall Side Clearance Lights For A Trailer Hey Brent, The closest clearance light options we currently offer to 5.5" W x 2" T are the Optronics # MC70AB and # MC70RB, which are 5-3/16" W x 2" T. The distance between the mounting holes from center to center is 4-13/16".
view full answer... - Replacement Trailer Clearance Lights In Red and Amber For Grote Lights 5" x 1-1/2" We currently do not carry any Grote lighting. We do have the Optronics Red # MC70RB and Amber # MC70AB lights which are close to your dimensions at 5-3/16" long and 2" tall. These would allow you to replace your lights with some that are more easily available.
view full answer... - Replacement Clearance Lights for Arctic Snowmobile TrailerIf you want replacement LED lights, I recommend the Rectangular LED Trailer Clearance, Side Marker Light, 4 Diode - Amber # MCL76AB and the red # MCL76RB. If you want replacement incandescent lights, I recommend the Rectangular Side Marker or Clearance Light w/ Reflectorized Lens, 2 Wire - Amber # MC70AB and the red # MC70RB
view full answer...
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Info for this part was:
Written by:
Tyler C
Installed by:
Cole B
Updated by:
Wilson B
Updated by:
Brian T
Updated by:
Noah M
Updated by:
Carrie F
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Gwendolyn Y.
5/4/2026
Sounds like perfect timing to me!