For a hub and drum assembly that fits your 3,500 lb axle on your 2021 K-Z Sportsmen Classic 181BH you need the Dexter Trailer Hub and Drum Assembly for 3,500-lb Axles - 10" Diameter - 5 on 4-1/2 # 84546UC3. If you have E-Z lube axles then you need the # AKHD-545-35-EZ-K instead.
Both of these use a # L68149 inner and # L44649 outer bearing. They have a 5 on 4-1/2 bolt pattern and use 10" brake assemblies like the Dexter Nev-R-Adjust Electric Trailer Brake Kit - 10" - Left and Right Hand... view full answer...
There unfortunately isn't a guide to tell us exactly what model vent you have so without this information the only option I currently have are the MaxxAir - White # MA00-335001 (Smoke # MA00-335002) or Valterra - White # A10-3375 (Black # A10-3376). These are both universal-fit lids with bolt-on hinges so that you can completely replace the old lid. view full answer...
Most smaller campers like what you have use an axle rated for 2,000 lbs. If this is the case with your camper then you should be able to use the Idler Hub Assembly # AKIHUB-545-2-EZ-1K but you will need to confirm what bearings you have and the size of the grease seal that will fit with your spindle as we don't have any info on that.
This idler hub uses # L44643 inner bearings and then a grease seal # 34823 that has an inner diameter of 1.249". If you have something different then go ahead... view full answer...
Based on the information I could find for your 2018 K-Z Sportsmen Classic 181BH travel trailer I see it is a 3,500LB axle and uses self-adjusting brakes. If you have the Dexter Nev-R-Adjust Electric Trailer Brake Kit # 23-468-469 you will need the Left # K71-681 and Right # K71-682 Brakes Shoes for your axle.
The Replacement Shoe and Lining Kit # AKBRKR-S-10 you found is for the Electric Trailer Brake Kit # AKEBRK-35-SA. If you cannot identify the brake kit you have then you will want... view full answer...