Hardware for Installation of Dutton-Lainson Quick-Lock Coupler

Question

Question:

What type of bolts need to be installed with this coupler?

asked by: Paul

0

Expert Reply:

Hey Paul! The Dutton-Lainson Quick-Lock Coupler # DL53XR installation instructions only say to use the largest possible bolts that fit the holes. The holes are 1/2" and I would use grade 8 bolts.

What kind of trailer do you have?

expert reply by: Robin H

0

Installation Instructions
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23950 Dimensions
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Robin H.

1/27/2026

Hey Paul, how did things go with the Dutton-Lainson Quick-Lock Coupler once you used the grade 8 bolts? Your update could make it easier for the next person working on a similar trailer setup.

Answer 1

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Answer 2

The difference between the Class II and Class III hitches has to do with their Gross Trailer Weight (GTW), their Tongue Weight (TW), and their Hitch Receiver Size. Class II trailer hitch receivers have a 1-1/4 inch receiver and can be rated up to…

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Answer 3

In order to determine the torque rating for the lug nuts on your trailer you will need to know check out the chart I attached that shows all of the torque specs for all the trailer lugs available based on stud size, wheel material and wheel size.

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Answer 4

Hey Bryan, that's a good question. The pricing can definitely be misleading, but I wouldn't use it to judge the quality of the tire. A lot of that comes down to promotions, inventory, and whether you're looking at a tire by itself or…

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Answer 5

It sounds like you are speaking of the wires for the brake magnets. If this is correct, you will need to connect one of the wires to the brake controller output wire on your trailer connector and the other wire will need to be grounded to a clean…

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Answer 6

A 4-Way trailer connector has the basic lighting functions only; running lights, left turn signal and brake lights, right turn signal and brake lights, and ground. A 7-Way has these functions and a 12 volt circuit, a circuit for electric trailer…

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Answer 7

Hi Paul, you’re definitely on the right track here, and I can help you narrow this down with confidence. With your tandem 3,500 lb Dexter axles and 33 inch spacing, both the Dexter EZ Flex part #K71-652-00 and the Lippert Road Armor part #LC53CK are…

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Answer 8

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Answer 9

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Answer 10

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Answer 11

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Answer 12

That's a very good question, we tend to be extra cautious and say to use 10 gauge wire because that would be more than enough. When you get into longer trailers that will end up using a lot of wire the heavier gauge wire becomes more necessary.…

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