What Size are the Dexter Electric Trailer Brakes K23-103-104-00?

Updated 05/19/2025 | Published 05/07/2025

Question:

Hello. My name Shige Is this item sized inch x 1-1/4 inch? ? Dexter Electric Trailer Brakes - Parking Brake Ready - 7 - Left/Right Hand Assemblies - 2.2K Part Number: K23-103-104-00

asked by: Shigeyuki

Expert Reply:

Hey Shige! The Dexter Electric Trailer Brakes item # K23-103-104-00 measure 7" x 1-1/4". This set includes both the left and right hand side brake assemblies. They fit a 4 bolt mounting flange.

What kind of trailer do you have?

expert reply by: Jerred H

Shigeyuki

5/10/2025

to Jerred H Thank you for contacting me. I would like to purchase it. My trailer is a 1990 Coleman Taos with a pop-up trailer. It has 4 bolts. I would like to send you a photo just to be sure. Is it okay if I send it to an email? Please let me know. Thanks!

Jerred H.

5/11/2025

@Shigeyuki You're welcome! The Dexter Electric Trailer Brakes item # K23-103-104-00 look exactly like the ones you sent me a picture of and they do attach to a 4 bolt brake flange. To purchase you'll just need to go to the item # K23-103-104-00 product page and click add to cart then follow the instructions for checking out once you click on the shopping cart icon on the top right of the page. If you have any additional questions go ahead and throw them into the comment box below and I'll be happy to answer them.

Shigeyuki

5/11/2025

@JerredH Thank you for contacting me! Please tell me about the wiring for this brake. There are two wires. One is the wire from the brake controller, and where should I connect the other one? Please let me know. I'm using the tekonsha.P3 brake controller. I'd like to buy this product as well. Thank you in advance.

Jerred H.

5/11/2025

@Shigeyuki You're welcome! The wire you're looking for is called the stop light switch and it'll be around your brake pedal. You'll want to use a circuit tester like item # PTW2993 to find the wire that only has power when you press the brake pedal. This will connect to the red wire from the Prodigy P3 item # 90195 harness.

Shigeyuki

5/18/2025

Hello. Regarding the two wires coming out of this brake assembly, where should I connect one to the wire coming from the brake controller and where should I connect the other? Thank you.

Jerred H.

5/19/2025

@Shigeyuki Hello! The Dexter Electric Trailer Brakes item # K23-103-104-00 has two white wires. You'll need to connect one to power and one to a ground. It doesn't matter which one you use for either function. You can reconnect them to the wires your old brakes were ran to using heat shrink butt connectors like item # DW05745-5. Neither of these connect to your brake controller.

Shigeyuki

5/19/2025

Thank you for your reply. This is Shigeyuki. I'm sorry for asking so many times. Of the two white wires coming from the brake assembly, one is for power, but should I connect that power to the blue trailer output coming from the brake controller? Or should I connect it somewhere on the 7-pin connector? Is it okay to use a ground for the other one? I'm sorry for asking so many times. Thank you! I threw away the old wiring and brake assembly, so I need to wire it up new. I'll buy it when I understand it. Please let me know. Thank you so much!

Jerred H.

5/19/2025

@Shigeyuki No, you shouldn't connect the brakes directly to the brake controller. You need to find the wiring you cut your old brake assemblies off of and connect the wires from the Dexter Electric Trailer Brakes item # K23-103-104-00 to them.

Shigeyuki

5/19/2025

Hello. I would like to purchase the brake controller as well, but it seems that the delivery will be delayed until after July due to out of stock, but is it possible to expedite the delivery to within June? Tekonsha Prodigy P3 Trailer Brake Controller - 1 to 4 Axles - Proportional How long will it take? Thank you for contacting me so many times.

Jerred H.

5/19/2025

@Shigeyuki I can't help with shipping on the Prodigy P3 item # 90195. They're backordered from the manufacturer.(05/19/25) What I can do is suggest going with the Prodigy P2 item # 90885. It installs in an identical way and has the same features you'll need to tow your Coleman Taos trailer.

Shigeyuki

5/19/2025

Hello, thank you. What are the differences in functions between p2 and p3? Please tell me the details in detail. If it's okay, I'll consider buying p2. Thank you. Thank you for everything!

Jerred H.

5/19/2025

@Shigeyuki The main difference between the Prodigy P2 item # 90885 and the Prodigy P3 item # 90195 is the screens. The P2 has a more traditional screen with the simple numbers and dots. The P3 has a LCD screen which provides for a customizable read out. It also allows the controller to tell you what is wrong if you should have an issue rather than having to find the manual to determine what the combination of dots and numbers will mean. Both controllers are proportional, work with electric or electric over hydraulic brakes and will support trailers with up to 4 braking axles.