2012 Audi A4 Air Filter

Seal 171255UC has an inner diameter of 1.719 inches and outer diameter of 2.565 inches. A seal that has those dimensions would actually be #58846. I've added a link to a video review of this seal for you to take a look…

Normal operating temperatures for drum brakes range from 150-400 degrees F. During certain stopping conditions the brake heat can exceed 600 degrees. The effectiveness and stopping power of the brakes is significantly reduced at these higher…

I would be happy to help you set up your 2022 Toyota Highlander to haul your new travel trailer. The wiring harness you currently have controls your trailer's lighting functions only. You do not need to rewire your Toyota…

It sounds like when the Redarc Tow-Pro Elite Brake Controller #RED44FR was installed on your 2022 Toyota Highlander that they may have damaged the brake signal wire or tied into the wrong wire. I recommend taking it either back to the shop who…

You mentioned a 20 ton (40000 lbs) tag trailer with disc brakes. If you have a 20 ton trailer it would most likely come with air brakes. Next, you mention a tandem axle trailer with two 10000 lb axles and disc brakes, so I am thinking you were…

The correct replacement for a Demco Master Cylinder 05680-C is the Replacement Master Cylinder part #5650. I spoke with Demco to confirm this for you.

The correct replacement master cylinder kit we have for your Demco setup is the part #DM5918 which comes with the lock out replacement.

Since you have 3,500 lb axles you'd want a bearing kit for this axle capacity and not a 7k axle as the bearings and seals are totally different. For a 3,500 lb axle you'd want the part #BK2-100 instead.…

You will want to use a standard 12 volt deep cycle trailer battery to operate the interior light. You will NOT want to use a trailer breakaway battery. The breakaway battery is not designed to power other trailer accessories or lighting, it is just…

Yes, Replacement Cap Kit for HappiJac Manual Truck Camper Jacks #LC183332 is the correct kit. This is for your Replacement Jack #LC736514 (4220) or the complete setup HappiJac Manual Truck Camper Jack System - 34-1/2" Lift…

Your trailer's brakes will not lock up from the battery in a breakaway kit, like the Hopkins Brake Master #HM20001 being dead. If the breakaway battery is dead there won't be any power supplied from the…

The 3 wire component is the charger and receives 12V power from the vehicle connector and charges the breakaway battery. Now the blue wire coming off the charger will go out to the breakaway switch. I included a video on a similar charger #20011…