Dexter 8,000 lb 865 Hub Bearings, E-Z Lube & Oil-Cap Parts Guide

Dexter 8,000 lb 865-series trailer hubs use a 25580 inner bearing cone and a 02475 outer bearing cone, with matching 25520 and 02420 cups. The grease-lubricated E-Z Lube and oil-lubricated hub versions do not use the same cap and seal arrangement. Use the component guide below to find the correct replacement parts for your hub.

Before choosing parts: Check the axle identification, the existing hub or drum part number, lubrication style, and whether your wheel studs are 9/16-18 or 5/8-18. An 8,000 lb axle rating by itself does not identify every replacement component.

Dexter exploded hub drawing

Dexter's light-duty axle parts catalog includes the illustrated 8,000 lb 865 hub group, numbered bearing components, cap choices, and wheel-stud options. The full manufacturer's drawing is available below; on smaller screens, open the document directly for easier zooming.

Open Dexter 600–8K parts catalog (PDF)

Look for the 8,000 lb capacity / 865 hub group. The original PDF opens separately on phones and smaller screens.

Dexter 8000 lb 865 hub assembly diagram with grease, E-Z Lube and oil lubrication parts
8,000 lb 865 hub: grease and oil-lubricated arrangements. Select the image for a full-size view.

Grease and E-Z Lube component numbers

Reference numbers follow the manufacturer's hub illustration. Items with a specific grease-cap or spindle design apply only to that arrangement.

Ref. Dexter part number Component Application
1 010-036-00 2.25-inch grease seal Grease-lubricated hubs
2 031-030-02 / 25580 Inner bearing cone Grease and oil
3 031-030-01 / 25520 Inner bearing cup (race) Grease and oil
4 031-028-01 / 02420 Outer bearing cup (race) Grease and oil
5 031-028-02 / 02475 Outer bearing cone Grease and oil
8A 021-043-01 E-Z Lube grease cap E-Z Lube versions
8B 085-001-00 E-Z Lube rubber plug E-Z Lube versions
9 005-057-00 Spindle washer Check spindle version
28 006-191-00 E-Z Lube jam nut Matching E-Z Lube spindle
29 006-190-00 E-Z Lube nut retainer Matching E-Z Lube spindle
10 007-223-00 / 007-224-00 9/16-18 or 5/8-18 wheel stud Match the original stud and hub

Oil-lubricated hub parts

Oil-lubricated 8K hubs have a separate oil cap, plug and seal arrangement. The E-Z Lube rubber plug above is not a substitute for an oil cap plug.

Dexter part number Component Application
010-063-00 Unitized oil seal For compatible oil-lubricated 8K hubs
021-035-00 Oil cap Oil-lubricated version
046-032-00 Rubber oil-cap plug Oil cap, not E-Z Lube grease cap
010-045-00 Oil-cap O-ring Oil-lubricated version

Identify the 8K hub arrangement

Dexter kit Hub type Wheel studs Cap arrangement
K08-285-92 8K 865 hub/drum, oil-lubricated 9/16-18 Oil cap 021-035-00 and plug 046-032-00
K08-285-93 8K 865 hub/drum, oil-lubricated 5/8-18 Oil cap 021-035-00 and plug 046-032-00
K08-285-94 8K 865 hub/drum, grease-lubricated 9/16-18 Standard grease cap 021-039-00
K08-285-95 8K 865 hub/drum, E-Z Lube grease 9/16-18 E-Z Lube cap 021-043-01 and plug 085-001-00

The kit numbers identify different axle-hub configurations; they are not interchangeable based on axle capacity alone. For individual repairs, match the part stamped on the existing component and the complete hub arrangement.

Replacement parts with photos

These NewRVParts listings correspond to individual component numbers shown in Dexter 8K hub references. Select the grease or oil cap part that matches your existing hub.

Dexter 010-036-00 grease seal product photograph for 8K hub010-036-00 · Grease seal2.25-inch-ID seal used with selected Dexter 8K grease-lubricated 865 hubsView partDexter 085-001-00 rubber plug for E-Z Lube grease cap085-001-00 · E-Z Lube plugRubber centre plug for the matching E-Z Lube grease capView partDexter 007-223-00 9/16-18 press-in trailer wheel stud007-223-00 · 9/16-inch wheel studFor the corresponding 9/16-18 studded hub; not for 5/8-inch versionsView partDexter 046-032-00 rubber oil cap plugs for oil-lubricated hub046-032-00 · Oil-cap plugFor the oil-lubricated cap assembly; not an E-Z Lube grease-cap plugView part

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