What is the Metric Equivalent to a G78-14 Alpha Numeric Boat Trailer Tire

Question

Question:

my boat trailer has G 78-14 bias ply tires what is the metric equivalent?

asked by: rod

0

Expert Reply:

According to our resident tire expert, the metric equivalent of a G78-14 Alpha Numeric tire is a 205/75-14 tire like the Loadstar ST205/75D14 Bias Trailer Tire - Load Range C, # AM1ST86, that you have referenced.

The TireMinder i10 TPMS for RVs and Trailers w/ Signal Booster - 4 Tire Sensors # TM89FR, would be a great addition to your setup. This wireless monitor tracks the pressure on all your tires and displays them constantly. Keeping up with your tire pressure is one of the best ways to improve your fuel mileage.

I have included a link to some trailer tire FAQ articles for you.

expert reply by: Michael H

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Answer 1

Yes, the 75R14 and 75D14 are going to have the same aspect ratio but will be constructed differently. You can use them, but the #AM1ST86 are likely not going to be the ideal solution for your trailer. When reading this tire spec, your current tire is…

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Answer 2

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 at.

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Answer 3

Based on my research, the Trailer Hub and Drum Assembly - 8,000-lb E-Z Lube Axles #AKHD-865-8-EZ-K will be a replacement for the 90865 Rockwell hub and drum. Both of these hub and drum assemblies are 12-1/4" diameter, have an 8,000 lb capacity,…

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Answer 4

Brake systems are not dependent on the hub bolt pattern. So you can use the Electric Trailer Brake Kit #AKEBRK-7-SA for 12 inch hub/drums or #AKEBRK-35-SA for 10 inch hub/drums. Then use #10-1-1 wire sold by the foot for your brake magnet wiring.…

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Answer 5

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.

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Answer 6

By "mobile home type bolt pattern" I believe you are talking about a 5 spoke utility bolt pattern such as what is on the Dexter Trailer Hub and Drum Assembly - 6,000-lb and 7,000-lb Axles #8-174-5UC3. To measure your axle from hub face to…

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Answer 7

You will need the Red LED Trailer Clearance or Side Marker Light #328-K-52 or Amber LED Trailer Clearance or Side Marker Light #328-K-51 for your 2018 Forest River Sunseeker motorhome. These lenses have the same Top Command SAE-AP2-16 markings on the…

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Answer 8

If your old axles have a 5 bolt brake flange the assemblies like Dexter Electric Trailer Brake Assembly - 12" - Left Hand - 6,000 lbs part #23-105 or Dexter Electric Trailer Brake Assembly - 12" - Right Hand - 6,000 lbs part #23-106 will…

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Answer 9

If you are needing the hub and drum assembly then you will want to go with the Dexter Trailer Hub and Drum Assembly #8-201-5UC3-EZ but if you are just looking for an idler hub then you will want part #8-213-5UC1 instead. These come with the correct…

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Answer 10

If the trailer wheels scrubbed (dragged and scrapped the ground instead of rolling) when jack knifed then it could have thrown something out of alignment or damaged something. First, inspect the suspension. Look for any elongated holes where…

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Answer 11

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 you just need another…

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Answer 12

The 7290 that you see is a casting number. It is found on AL-KO hubs that fit #99 spindles. I found that the bearings used are #28580 which would be the inner bearing and #25580 which would be the outer bearing. For the seal use #91030.

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