Availability of Replacement Trailer Hub Grease Seal 18823

Question

Question:

I have a C.R. 18823 grease seal on my 1956 airstream bubble trailer. It’s 3” OD. Do you have anything comparable? Thanks

asked by: Larry G

0

Expert Reply:

Hey Larry, yes we do have a grease seal replacement for what you have with the part # 29031. This has the outer diameter you mentioned of 3 inch and also has the correct inner diameter of 1.875 inch.

expert reply by: Jameson C

0

Jameson C.

10/30/2025

Hey Larry, how did the new grease seal work out on your 1956 Airstream Bubble trailer? Knowing how the fit turned out could help others with older trailers looking for the same replacement.

Answer 1

Hey Larry, yes your current drums can be used with electric assemblies instead of the hydraulic ones you have now. If you are looking for a set to replace what you have the part #AKEBRK-7-SA is a great option that's is self adjusting.

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Answer 2

It sounds like your assemblies are not the typical assemblies and will need to be replaced. For your brake assemblies, I recommend the Electric Trailer Brake Kit - Self-Adjusting #AKEBRK-7-SA along with mounting hardware #BRKH12. If you don't…

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Answer 3

An oil seal like Redline part #9103309 installs in the back side of the hub (the side nearest the trailer's frame) with the sides or "legs" of the seal inserted into the hub's bore. This means that the flat metal surface of the seal…

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Answer 4

First you will need to remove the old hydraulic equipment. Remove the surge coupler or actuator, remove all the lines, and finally remove the brake assemblies. If you have 10 inch diameter hub and drums, you may need to replace those as well. If you…

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Answer 5

So after quite a bit of research it seems that the Trostel 300-156-6 seals you mentioned are quite old and have not been around for some time. The best I could find was that they are 3.00" in outer diameter, and I did manage to find a customer…

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Answer 6

Hello Travis, thanks for reaching out. We do have a grease seal that is very close to the dimensions you listed, although we don't have an exact match. Take a look at the following: - Grease Seal 29031 #29031 This is 3" OD, 1.875" ID…

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Answer 7

Based on what I can find it shows the National seal 5970 is the same as the Timken 203034 which I see has an outer diameter of 3" and an inner diameter of 1.875". The only seal we have which meets these dimensions is the Seal #29031. You…

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Answer 8

The four bolt brake mounting flange for 8,000 lb trailer axles is going to be more or less an industry standard. This industry standard is 3-5/8" across left to right on center and 3-7/16" top to bottom on center. This could very well vary…

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Answer 9

Yes, the Replacement Clutchless Motor Head for HappiJac Truck Camper Jacks #LC759927 would be the correct part to replace the head on your HappiJac 4150 and 4500 system if already converted to electric. If you have not already converted your 4150 and…

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Answer 10

You can verify that the 10-19 grease seal included in Bearing Kit #BK2-100 is the correct one for your spindles by taking two measurements. First you want to measure the rear hub bore where the seal is inserted. The seal's outer diameter needs to…

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Answer 11

I wish we could help but none of our hubs fit a spindle that is 1-1/4 inch in diameter all the way across. If instead the spindle was 1-1/16 inch diameter for both bearings you'd want the part #8-258-50UC1-EZ which is standard for a 2,200 lb…

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Answer 12

All the brake controller needs to sense a trailer connection so that you can test it is a slight amperage draw on the output circuit. For that you can use a circuit tester like the part #PTW2993 with one pin grounded and the other on the output pin.…

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Availability of Replacement Trailer Hub Grease Seal 18823

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