Recommended Replacement Wheel Bearings On An Airstream Trailer

Question

Question:

I am replacing the wheel bearings on an Airstream trailer the number on the back bearing is 4T-25580 is that the same as the 25580 bearing in you product line?

asked by: Larry L

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Expert Reply:

Yes, the Replacement Trailer Hub Bearing, # 25580, is the replacement for the Airstream trailer bearing 4T-25580. It has an inner diameter of 1.750 inches and has the same outer diameter as well.

If the (back)INNER bearing is the 4T-25580, then there are 3 different common outer bearing combinations. If you have a 6,000 lb axle, the outer bearing will be # 15123 and grease seal # RG06-070 will be needed as well. The bearing kit that includes these 3 parts is # BK3-100.

If you have a 5200 lb axle, the outer bearing is the # LM67048. For the bearing kit with both bearings and grease seal, use # BK3-310.

If you have a 7000 lb axle, the outer bearing is the # 14125A. For the bearing kit with both bearings and the grease seal, use # BK3-200.

It is important to choose the correct outer bearing and finding the bearing number is the easiest way because all three of these have the same inner diameter, but they each use a different race.

expert reply by: Jason S

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Answer 1

Dexter Nev-R-Lube Bearings such as the 50MM #31-71-3 referenced in your question do not have a specific maintenance or replacement schedule. These are pre-lubricated at the factory, which will make it resistant to contamination, and sealed for life…

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Answer 2

Based on your axle info the correct bearing kit would be the part #BK3-310 for a kit that includes both bearings #LM67048 and #25580 as well as a grease seal.

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Answer 3

I'd be happy to help! To figure out if new modern brakes will work on your vintage Airstream you'll need to figure out which size your brakes are. Based on your picture it looks like you have a 5 bolt mounting flange similar to what #AKEBRK-6…

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Answer 4

Even though I cannot comment specifically on the grease you used because I am not familiar with it, I can tell you the best grease for trailer bearings is a a grease with a rating of GC-LB, which just means it is made to withstand very high…

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Answer 5

The four wires on trailer brake controllers are standardized so they always connect in the same way. The black wire connects to the battery positive terminal (through a circuit breaker) to deliver operating power to the controller; the white wire is…

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Answer 6

Thanks for the picture and info on your current brake assemblies, from that we know that the Dexter brake assembly part #23-106 that you referenced is the correct fit. For the left hand side you'd then want the part #23-105.

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Answer 7

The TruRyde Spindle Nut #165686 has an outer measurement of 1.45 inches. You will use a 1-1/2 inch socket on this castle nut or we usually use a channel lock for these installations. I've attached a video of an installation of a hub to assist.…

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Answer 8

Hey Tito, From what I can find the Trailer Hub & Drum Assembly #8-388-80UC3 and Dexter Nev-R-Adjust Electric Trailer Brakes #23-458-459 do appear to be the correct fit but you'll want to first verify the wheel bolt pattern and axle capacity…

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Answer 9

I was able to find the following produce for adjusting the pendulum on the Kelsey Brake Controller: "Depress the brake pedal just far enough to illuminate the tow vehicle brake lights. Use a finger to pull the pendulum leveling arm (a small…

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Answer 10

That is correct. The #GS-2250DL is the direct replacement for your old grease seal marked P02860 on your 2019 Keystone Cougar.

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Answer 11

It sounds like the seal you have has an inner diameter of 2.25 inches and outer diameter of 3.371 inches. For a pair of seals this size we have #RG06-070. This is a set of two 10-36 double lip seals. We also have set #RG06-090 which has an inner…

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