Trailer Seal 11784UHY - 1.125 ID X 1.785 OD

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Trailer Wheel Seal 11784UHY

The 11784 UHY trailer wheel seal is typically used with the 3/4" straight trailer spindle.  This is the only grease seal that is a single lip rather than the standard double lip.  This trailer grease seal is made of the standard metal body with the single lip rubber seal.  Colors may vary from blue, green, or beige on the outer metal. 

Seal Inside Diameter:  1.125"

Seal Outside Diameter: 1.785"

Typically used with inner bearings 11949


Seal Number Cross Reference

Transcom Number 11784UHY


Trailer wheel seals are an integral part of a well operating trailer hub.  Trailer seals are installed in the back of the hub and seal to the section of the spindle that works to keep the wheel bearing grease or oil in a trailer hub, prevents water and dirt from entering the hubs which could cause bearing failure.  Therefore, it is extremely important to inspect your trailer seals regularly.  Grease or oil leaking past the seal seat or grease on the back of your trailer rim is a sign of a worn, torn, or old seal and must be fixed to prevent damage to the trailer hub or the trailer axle.


Double Lip Seal Diagram

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