Keep your trailer axle hubs sealed and your bearings protected with Lippert 333961 replacement grease seals. Engineered for Lippert, Dexter, and Al-Ko axle hubs covering a broad range of trailer weight ratings, these double lip seals form a positive barrier against road grime, water, and debris while locking grease in where it belongs. Ten seals per pack -- enough to service multiple axles or keep spares on hand for the road.
A failed or worn grease seal is one of the leading causes of bearing damage on RV and trailer axles. Once the seal fails, grease escapes, contaminants enter the hub, and bearing wear accelerates rapidly. The Lippert 333961 replaces worn or damaged seals with a dual-lip design that provides two lines of defense -- one lip retains grease, the other excludes dirt, water, and road debris.
These seals are a direct-fit replacement for trailer axles commonly found under travel trailers, fifth wheels, toy haulers, cargo trailers, and boat trailers rated from 1,250 to 8,000 lbs. The 1.72" inner diameter and 2.565" outer diameter match the spindle and hub bore dimensions on Lippert, Dexter, and Al-Ko axles sharing this fitment. Service part number 122087 cross-references this seal in Lippert and compatible service literature.
Two sealing lips work together -- one retains bearing grease inside the hub, the second excludes water, dirt, and road grime from entering the bearing cavity.
Fits Lippert, Dexter, and Al-Ko trailer axle hubs rated from 1,250 lbs up to 8,000 lbs where the 1.72" ID x 2.565" OD spec applies.
OEM-quality replacement carrying Lippert part number 333961 and service reference 122087. Backed by a limited 1-year manufacturer warranty.
Ten seals per pack -- enough to service both hubs on a multi-axle trailer with spares left for future maintenance or emergency roadside replacement.
Grease seals are a routine maintenance item. They can harden, crack, or deform from heat cycles, road shock, and age. If you see grease weeping from behind your wheel, smell burning grease, or hear a rumbling bearing, inspect and replace the seal immediately. Most RV service intervals recommend inspecting seals any time you repack bearings -- typically every 10,000-12,000 miles or once per season, whichever comes first.
These seals are identified by Lippert service part number 122087 in addition to the stocked part number 333961. When ordering replacements, confirm your spindle inner diameter is 1.72" and your hub bore accepts a 2.565" OD seal. This fitment is common across a wide range of Lippert, Dexter, and Al-Ko axle assemblies. If you are unsure of your axle brand, check the axle tube sticker or the tag on the brake backing plate.
With 10 seals in this pack, you have enough to service all four hubs on a tandem-axle trailer -- both inboard and outboard positions -- with two spares to keep in your tool kit. For full axle service kits that include bearings, races, and seals together, look for Lippert and Dexter bearing kit bundles that match your axle rating.