How to Choose Spare 4-Lug Hub for Alumacraft Boat Trailer

Question:

My husband needs aluminum 4 lug wheel hub for his boat. It’s a 75 model alumscraft. Do you know where I can get one?

asked by: Dawn

Expert Reply:

We can help you with finding a spare 4-lug hub for your husband's Alumacraft boat trailer. Selecting the right 4-lug hub is easy; you just need to match up the axle weight rating and the bearing parts that are inside the hub. The hub you referenced, Idler Hub # AKIHUB-440-2-1K, works on 2000-lb-rated axles and it uses bearing # L44643 for both its inner and outer bearing. If your bearings match then this hub will fit and work well.

An axle's weight rating can be found on a sticker on the axle itself, within the trailer's printed manual or sometimes on the main identification sticker on the trailer. The bearing part numbers should be stamped right on the bearings; to get these you need to pull off one hub and remove the inner and outer bearings to get those part numbers. Please refer to the linked photo to see how these typically appear. Sometimes the trailer maker can tell you this information if you provide them with the trailer VIN but pulling one hub and noting the bearing parts yourself avoids the chance for errors. You can also refer to the linked article on bearings.

expert reply by: Adam R