1. Home
2. Trailer Parts
3. Lunette Ring
4. Bolt-Onx

The bolt hole dimensions of the Buyer's Products lunette ring, part #337BDB125015, is 4-1/2 inches both vertically and horizontally. I've linked a video showing them being measured. Also, the holes themselves are 5/8 inch in diameter. We…

The mounting bolt pattern for the Buyers Products 3" I.D. Heavy-Duty Forged 4-Bolt Mount Lunette Ring #337BDB1385 that you referenced is 4-1/2 inches square.

Thanks for the picture Richard, I can tell by your picture you have a Model 6 surge actuator on your trailer which the #T4846500183 is the correct replacement for if you were wanting a channel style inner slide member replacement.

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.

The standard size lunette ring is 3 inches like the Demco Lunette Ring - Adjustable Channel Mount - 3" Diameter - Black - 25,000 lbs #DM09557-81. The 2-1/2 inch rings will not fit in the adjustable channel mounts where the vast majority of the 3…

Hey Robert, yes the Kodiak disc brake calipers part #KDBC225DAC that you referenced will replace the Tie Down calipers you have now 46304, they can be used as a left or right hand caliper and does come with ceramic brake pads. If you ever needed…

The "Trailer Disconnected" error message on the dash with a factory brake controller is usually related to an issue with the blue brake output wire that runs from the brake controller to the 7-Way connector. The fact that the issue remains…

To replace your NOK AD2527E seal you can use #168233. It has an inner diameter of 1.688 inches and an outer diameter of 2.332 inches. Based on what I could find on the NOK AD2527E the inner diameter is the same and the outer diameter is 2.328 inches.…

Lunette rings do come in more than one size. The linked page displays both 2-1/2-inch and 3-inch inner diameter. . Lunette ring accessory items are also shown on the other linked page. Weight capacities for lunette rings are substantial, ranging from…

You can add a 7-Way trailer connector and retain the use of a 4-Way as well by installing #37185. The 4-Way you have will plug into the 37185 and the remaining wires would have to be hardwired in. The white wire grounds to the truck frame. Black is…

Hi Jerry, For your 2025 Kia Sorento PHEV you would need the Curt Trailer Hitch Receiver #C37RV for the trailer hitch. The right light kit for your Sorento is going to depend on a few factors. For models with the tow package, like you stated you have,…

The spindle dimensions you have do not match any of the standard trailer spindles that are available so we do not have any hubs that would fit them. Honestly your best option is going to be to replace the axles. Installing new spindles is a…

The bolt hole dimensions of the Buyer's Products lunette ring, part #337BDB125015, is 4-1/2 inches both vertically and horizontally. I've linked a video showing them being measured. Also, the holes themselves are 5/8 inch in diameter. We…

The mounting bolt pattern for the Buyers Products 3" I.D. Heavy-Duty Forged 4-Bolt Mount Lunette Ring #337BDB1385 that you referenced is 4-1/2 inches square.

Thanks for the picture Richard, I can tell by your picture you have a Model 6 surge actuator on your trailer which the #T4846500183 is the correct replacement for if you were wanting a channel style inner slide member replacement.

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.

The standard size lunette ring is 3 inches like the Demco Lunette Ring - Adjustable Channel Mount - 3" Diameter - Black - 25,000 lbs #DM09557-81. The 2-1/2 inch rings will not fit in the adjustable channel mounts where the vast majority of the 3…

Hey Robert, yes the Kodiak disc brake calipers part #KDBC225DAC that you referenced will replace the Tie Down calipers you have now 46304, they can be used as a left or right hand caliper and does come with ceramic brake pads. If you ever needed…

The "Trailer Disconnected" error message on the dash with a factory brake controller is usually related to an issue with the blue brake output wire that runs from the brake controller to the 7-Way connector. The fact that the issue remains…

To replace your NOK AD2527E seal you can use #168233. It has an inner diameter of 1.688 inches and an outer diameter of 2.332 inches. Based on what I could find on the NOK AD2527E the inner diameter is the same and the outer diameter is 2.328 inches.…

Lunette rings do come in more than one size. The linked page displays both 2-1/2-inch and 3-inch inner diameter. . Lunette ring accessory items are also shown on the other linked page. Weight capacities for lunette rings are substantial, ranging from…

You can add a 7-Way trailer connector and retain the use of a 4-Way as well by installing #37185. The 4-Way you have will plug into the 37185 and the remaining wires would have to be hardwired in. The white wire grounds to the truck frame. Black is…

Hi Jerry, For your 2025 Kia Sorento PHEV you would need the Curt Trailer Hitch Receiver #C37RV for the trailer hitch. The right light kit for your Sorento is going to depend on a few factors. For models with the tow package, like you stated you have,…

The spindle dimensions you have do not match any of the standard trailer spindles that are available so we do not have any hubs that would fit them. Honestly your best option is going to be to replace the axles. Installing new spindles is a…