Trailer Hub & Brake Drum Kit — 10" x 2-1/4" — 5 on 4-3/4"
Complete one-location trailer hub and brake drum service kit for common 3,500 lb #84 spindle applications using 10" x 2-1/4" electric brakes and the 5 on 4-3/4" small GM-style bolt pattern.
Overview
This R&P Carriages hub and brake drum kit is built for service replacement on compatible 3,500 lb trailer axle applications where the brake size, bearing numbers, seal size, spindle style, and wheel bolt pattern match. It includes the hub/drum assembly with bearing races installed, plus common bearing, seal, dust cap, and lug nut service parts for one hub/drum location.
R&P Service Insight
Brake drum fitment depends on more than axle weight alone. Match the brake size, spindle, bearings, seal, and wheel bolt pattern before ordering.
- Brake Size: Use only where a 10" x 2-1/4" hub/drum is the correct match.
- Spindle Match: Intended for common #84 spindle-style 3,500 lb axle service applications where bearing and seal dimensions match.
- Bolt Pattern: 5 on 4-3/4" is not the same as 5 on 4-1/2". Confirm before installation.
R&P Knowledge Hub
Compatibility: Fits common Dexter/AL-KO-style 3.5K #84 spindle applications where the listed brake size, bearings, seal, and bolt pattern match. Verify before ordering.
Vehicle / System Fit: Common trailer axle service application using 10" x 2-1/4" electric brakes and a 5 on 4-3/4" wheel bolt pattern.
Installation Notes: Confirm inner bearing L68149, outer bearing L44649, 10-19 style seal fit, wheel bolt pattern, brake size, and spindle dimensions before installation.
Performance Insight: Bearing races are already installed in the hub/drum assembly, helping reduce service setup time when the included bearing and seal set matches the trailer.
Brand & Fitment Note
Selling Brand: R&P Carriages
Application Reference: Dexter and AL-KO names are used only to describe common application style and fitment reference where dimensions and configuration match.
What This Means: This listing is for an R&P Carriages curated trailer hub and brake drum service kit, not a guaranteed OEM-branded item unless specifically stated and verified.
Before Ordering: Verify brake size, bolt pattern, bearing numbers, seal inside diameter, spindle type, axle rating, and included components before installation.
R&P Repair Insight
This hub/drum family is a strong service option when the trailer uses the 5 on 4-3/4" small GM-style pattern, but mismatching the bolt pattern or seal size can stop the repair quickly.
- Seal Check: This kit uses a 10-19 style seal. Verify 1.719" / 1.72" seal ID before ordering.
- Bearing Check: Confirm L68149 inner bearing and L44649 outer bearing numbers against the existing hub or spindle.
- Wheel Check: Confirm the wheel is drilled for 5 on 4-3/4", not the more common 5 on 4-1/2" pattern.
Features
10" x 2-1/4" Brake Drum
Configured for compatible trailer brake assemblies using a 10" diameter and 2-1/4" brake width.
5 on 4-3/4" Bolt Pattern
Matches the 5-lug, 4.75" small GM-style bolt pattern used on select trailer wheel applications.
Bearing Races Installed
Hub/drum assembly includes pre-installed bearing races for service replacement convenience.
One Hub/Drum Service Location
Includes the listed hub/drum, bearing, seal, dust cap, and lug nut components for one hub/drum position.
Specifications
| Specification | Detail |
|---|---|
| Part Number | 945475-1-KIT |
| Brand | R&P Carriages |
| Product Type | Trailer hub and brake drum service kit |
| Brake Size | 10" x 2-1/4" |
| Bolt Pattern | 5 on 4-3/4" |
| Common Axle Application | 3,500 lb trailer axle applications where dimensions and components match |
| Inner Bearing | L68149 — 1-3/8" ID |
| Outer Bearing | L44649 — 1-1/16" ID |
| Grease Seal | 10-19 style seal — verify 1.719" / 1.72" ID before ordering |
| Hub/Drum Prep | Bearing races installed |
Fitment / Application
| Category | Details |
|---|---|
| Vehicle / System | Trailer hub, drum, and electric brake system |
| Primary Fit | Common 3,500 lb #84 spindle trailer axle applications using 10" x 2-1/4" brakes |
| Application Style | Fits common Dexter/AL-KO-style 3.5K #84 spindle applications where measurements and service parts match |
| Notes | Verify brake size, bearing numbers, seal ID, wheel bolt pattern, spindle style, and existing hub/drum configuration before ordering. |
Included Components
| Quantity | Item |
|---|---|
| 1 | Hub and brake drum assembly with bearing races installed |
| 1 | Inner bearing — L68149 |
| 1 | Outer bearing — L44649 |
| 1 | 10-19 style grease seal — verify 1.719" / 1.72" ID before ordering |
| 1 | Dust cap |
| 5 | Lug nuts |
Related 945475 Family Parts
3,500 lb Trailer Brake Drum & Add-Brake Kits — 5 on 4.75"
Use this family guide to compare related 945475 hub/drum, brake, and add-brake kit options. These parts are commonly used on 3,500 lb trailer axle applications with 10" x 2-1/4" electric brakes, #84 spindle service parts, and the 5 on 4.75" small GM-style bolt pattern.
Hub & Drum Service Kits
945475-1-KIT
3,500 lb Hub & Drum Kit — 5 on 4.75"
Service kit for one hub/drum location. Includes common bearing, seal, dust cap, and lug nut service parts as listed on the product page.
Search SKU →Hub/Drum Kit945475-KIT-LOOSE
Green Hub & Drum Kit — Loose Bearings
Green-finish 5 on 4.75" hub/drum kit with loose bearing service components. Verify exact seal and cap requirements before installation.
Search SKU →Basic One-Axle Brake Kits
945475-B-IMP
Manual-Adjust Electric Brake Kit — 5 on 4.75"
Basic one-axle kit for 3,500 lb applications using 10" electric brakes and 5 on 4.75" hub/drums.
Search SKU →Self-Adjusting945475-B-FSA-IMP
Forward Self-Adjusting Brake Kit — 5 on 4.75"
Basic one-axle kit with forward self-adjusting 10" electric backing plates and matching 5 on 4.75" hub/drums.
Search SKU →Dexter / Premium945475-B-FSA-DEX
Dexter Nev-R-Adjust Brake Kit — 5 on 4.75"
Premium one-axle Dexter-style kit with left and right 10" brake assemblies and 5 on 4.75" hub/drums. Confirm availability before ordering.
Search SKU →Single-Side Service Kits
945475-B-IMP-L
Left-Hand Drum & Electric Backing Plate Kit
Single-side service kit for the left-hand side. Confirm side orientation, bolt pattern, bearing numbers, and brake size before ordering.
Search SKU →Right Side945475-B-IMP-R
Right-Hand Drum & Electric Backing Plate Kit
Single-side service kit for the right-hand side. Confirm side orientation, bolt pattern, bearing numbers, and brake size before ordering.
Search SKU →Dexter Right Side945475-B-FSA-DEX-R
Dexter Nev-R-Adjust Right-Side Kit
Single right-side Dexter-style service kit. Verify current stock and confirm the right-hand assembly is the side needed before ordering.
Search SKU →Complete Conversion / Multi-Axle Kit Family
945475-C-IMP
Complete Manual-Adjust Add-Brakes Kit
Use for the complete conversion family only after confirming the exact included wiring, breakaway, plug, junction box, and hardware components.
Search SKU →Verify BOM945475-C-FSA-IMP
Complete Self-Adjusting Add-Brakes Kit
Use for the complete self-adjusting conversion family only after confirming the exact kit contents and fitment boundaries.
Search SKU →Proposed / Verify945475-B-IMP-2A
Tandem-Axle Manual Kit Family
Potential multi-axle bundle. Verify quantities, packaging weight, shipping method, and whether this should be a kit or collection.
Search SKU →Proposed / Verify945475-B-IMP-3A
Tri-Axle Manual Kit Family
Potential tri-axle bundle. Verify BOM, brake orientation count, shipping weight, packaging, and margin before publishing.
Search SKU →
