12K Trailer Hub Drum 8x6.5 5/8"-18 Heavy Duty Replace Dexter 9-28 Drum 8-214 Hub (99-86512-KIT)

R & P Carriages

$384.98

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12K–15K Trailer Hub & Drum · 8 on 6.5" · Oil Bath · Heavy Duty

Part Number: 99-86512-KIT

This listing is for one (1) complete heavy-duty hub and drum kit designed for 12,000 lb and 15,000 lb trailer axles using oil-bath lubrication and an 8 on 6.5" bolt pattern.

This kit is commonly used as a replacement for Dexter® 9-28 drum / 8-214 hub assemblies and includes the hub, drum, bearings, oil seal, oil cap, O-ring, and plug required for service or replacement.

Features

Heavy-duty hub & drum for 12K–15K trailer axles
Oil-bath lubrication system
8 on 6.5" bolt pattern
Accepts 5/8"-18 wheel studs
Two-piece oil cap design
Direct replacement for Dexter® 9-28 / 8-214 assemblies

Specifications

Specification	Detail
Axle Rating	12,000 – 15,000 lb
Bolt Pattern	8 on 6.5"
Brake Size	12.25" × 5"
Lubrication Type	Oil Bath
Hub / Drum Style	Integrated Hub & Drum
Stud Size	5/8"-18

Kit Includes

Component	Part Number	Description
Oil Seal	10-3125-06	3.12" × 4.506" · Replaces Dexter® 10-56
Oil Cap (2-Piece)	021-036-00	For 10K HD, 12K, 15K oil bath hubs
O-Ring	010-050-00	3.734" ID × .139"
Oil Plug	046-032-00	Center plug for oil cap
Inner Bearing	3984	2.625" ID · Uses 3920 race
Outer Bearing	28682	2.25" ID · Uses 28622 race
Hub & Drum Assembly	99-86512	12.25" × 5" · Includes 8-214 / 9-28

Fitment Notes

Fits Dexter® and AL-KO oil-bath axles rated 12K–15K
Designed for drums using Dexter® casting 9-28
Replaces hub casting 8-214
Not compatible with grease-lubed hubs

Always verify bearing numbers, seal size, and drum dimensions before ordering. Oil-bath hubs are application-specific.

What’s Included

(1) Hub & Drum Assembly
Bearings, seal, oil cap, O-ring, and plug

View All 12K–15K Hub & Drum Assemblies