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J-M SUPPLIES RC Parts Store - RCScrewZ Metal Shielded Bearing Kit hpi011b for HPI Racing RS4 Pro 4 / Pro 4 Hara Edition 1/10 Electric 4WD Touring Car (#185, #187) | RCX
J-M SUPPLIES RC Parts Store - RCScrewZ Metal Shielded Bearing Kit hpi011b for HPI Racing RS4 Pro 4 / Pro 4 Hara Edition 1/10 Electric 4WD Touring Car (#185, #187) | RCX
J-M SUPPLIES RC Parts Store - RCScrewZ Metal Shielded Bearing Kit hpi011b for HPI Racing RS4 Pro 4 / Pro 4 Hara Edition 1/10 Electric 4WD Touring Car (#185, #187) | RCX
J-M SUPPLIES RC Parts Store - RCScrewZ Metal Shielded Bearing Kit hpi011b for HPI Racing RS4 Pro 4 / Pro 4 Hara Edition 1/10 Electric 4WD Touring Car (#185, #187) | RCX
J-M SUPPLIES RC Parts Store - RCScrewZ Metal Shielded Bearing Kit hpi011b for HPI Racing RS4 Pro 4 / Pro 4 Hara Edition 1/10 Electric 4WD Touring Car (#185, #187) | RCX
J-M SUPPLIES RC Parts Store - RCScrewZ Metal Shielded Bearing Kit hpi011b for HPI Racing RS4 Pro 4 / Pro 4 Hara Edition 1/10 Electric 4WD Touring Car (#185, #187) | RCX
J-M SUPPLIES RC Parts Store - RCScrewZ Metal Shielded Bearing Kit hpi011b for HPI Racing RS4 Pro 4 / Pro 4 Hara Edition 1/10 Electric 4WD Touring Car (#185, #187) | RCX
J-M SUPPLIES RC Parts Store - RCScrewZ Metal Shielded Bearing Kit hpi011b for HPI Racing RS4 Pro 4 / Pro 4 Hara Edition 1/10 Electric 4WD Touring Car (#185, #187) | RCX
J-M SUPPLIES RC Parts Store - RCScrewZ Metal Shielded Bearing Kit hpi011b for HPI Racing RS4 Pro 4 / Pro 4 Hara Edition 1/10 Electric 4WD Touring Car (#185, #187) | RCX
J-M SUPPLIES RC Parts Store - RCScrewZ Metal Shielded Bearing Kit hpi011b for HPI Racing RS4 Pro 4 / Pro 4 Hara Edition 1/10 Electric 4WD Touring Car (#185, #187) | RCX
J-M SUPPLIES RC Parts Store - RCScrewZ Metal Shielded Bearing Kit hpi011b for HPI Racing RS4 Pro 4 / Pro 4 Hara Edition 1/10 Electric 4WD Touring Car (#185, #187) | RCX
J-M SUPPLIES RC Parts Store - RCScrewZ Metal Shielded Bearing Kit hpi011b for HPI Racing RS4 Pro 4 / Pro 4 Hara Edition 1/10 Electric 4WD Touring Car (#185, #187) | RCX
J-M SUPPLIES RC Parts Store - RCScrewZ Metal Shielded Bearing Kit hpi011b for HPI Racing RS4 Pro 4 / Pro 4 Hara Edition 1/10 Electric 4WD Touring Car (#185, #187) | RCX
J-M SUPPLIES RC Parts Store - RCScrewZ Metal Shielded Bearing Kit hpi011b for HPI Racing RS4 Pro 4 / Pro 4 Hara Edition 1/10 Electric 4WD Touring Car (#185, #187) | RCX
J-M SUPPLIES RC Parts Store - RCScrewZ Metal Shielded Bearing Kit hpi011b for HPI Racing RS4 Pro 4 / Pro 4 Hara Edition 1/10 Electric 4WD Touring Car (#185, #187) | RCX
J-M SUPPLIES RC Parts Store - RCScrewZ Metal Shielded Bearing Kit hpi011b for HPI Racing RS4 Pro 4 / Pro 4 Hara Edition 1/10 Electric 4WD Touring Car (#185, #187) | RCX
J-M SUPPLIES RC Parts Store - RCScrewZ Metal Shielded Bearing Kit hpi011b for HPI Racing RS4 Pro 4 / Pro 4 Hara Edition 1/10 Electric 4WD Touring Car (#185, #187) | RCX
J-M SUPPLIES RC Parts Store - RCScrewZ Metal Shielded Bearing Kit hpi011b for HPI Racing RS4 Pro 4 / Pro 4 Hara Edition 1/10 Electric 4WD Touring Car (#185, #187) | RCX

RCScrewZ Metal Shielded Bearing Kit hpi011b for HPI Racing RS4 Pro 4 / Pro 4 Hara Edition 1/10 Electric 4WD Touring Car (#185, #187) | RCX

RCScrewZ

SKU: hpi011b

Regular price
$49.88
Sale price
$49.88
Regular price
$59.95
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Available Quantity: 100

Free shipping on all U.S. orders (USPS Priority Mail).
Ships within 1–2 business days (Mon–Fri); some Saturday shipments by 12:00 PM ET.
Most orders ship from Canton, MI 48187. APO/FPO/DPO & PO Boxes welcome.
Priority Mail typically delivers in 2–3 business days (estimates; not guaranteed).
Easy 30-day returns with prepaid USPS label; refunds issued within 3 business days after the return is received.

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This page shows the Metal-Shielded Bearing Kit for this RC model — view all compatible Screw and Bearing kits for this RC model by clicking this link:

HPI RS4 Pro 4 & Hara Edition 1/10 Touring Car (#185, #187) — Compatible Kits by RCScrewZ (Screws & Bearings)

Pro tip: Most builders grab a Stainless Screw Kit and a Bearing Kit for this RC model so everything wears evenly.

Quick Fit Summary
  • Compatible Brand: HPI Racing
  • RC Model: HPI Racing RS4 Pro 4 Hara 1/10 Electric Touring (185, 187)
  • Scale: 1:10
  • Power Source / Fuel Type: Electric
  • Chassis: RS4 Pro 4 carbon fiber twin deck touring car
  • Era: Not currently verified.
  • OEM / Models: 185, 187
Quick Fit Summary — Full Details

Quick Fit Summary

Key fit details for your RC model, plus what’s in this kit.

RC Model Fit & Specs

  • Compatible Brand: HPI Racing
  • Fit: HPI Racing RS4 Pro 4 Hara 1/10 Electric Touring (185, 187)
  • Compatible RC Model Numbers: 185 · 187
  • Scale: 1:10
  • Power Source / Fuel Type: Electric
  • Vehicle Type: Touring Car
  • Chassis: RS4 Pro 4 carbon fiber twin deck touring car
  • Era: Not currently verified.
  • RC Model Terrain: On-Road

This Kit Details

  • SKU: hpi011b
  • MPN: hpi011b
  • Product: On-Road RC Bearing Kit
  • Bearing Type: Metal-Shielded (On-Road)
  • Sealed Bearings: No
  • Water/Dust Protection: Low-drag, not sealed
  • Product Material: Carbon Chrome Bearings
  • Product Color: Silver
  • Bearing Sizes Included: Bearings3x6x2.5mm flanged (3) · 4x7x2.5mm (5) · 5x8x2.5mm (3) · 5x10x4mm (14) · 10x15x4mm (5)
  • Tips: Seat fully · Do not over-tighten · After cleaning: add light oil
  • Install: ≈60 min; recheck torque after first run
  • Country of Origin: United States
Full Product Description

Exact RC Model Fitment

Confirm the exact RC model and RC vehicle OEM/model number below before ordering.

Compatible RC Model
HPI Racing RS4 Pro 4 Hara 1/10 Electric Touring (185, 187)
Compatible RC Brand
HPI Racing
RC Vehicle OEM / Model Number(s)
185, 187
RCScrewZ Kit Part Number
hpi011b

Vehicle Compatibility Details

Review these vehicle details to help confirm compatibility with your RC model.

RC Vehicle OEM / Model Number(s)
185, 187
RC Chassis Compatibility
RS4 Pro 4 carbon fiber twin deck touring car
Compatible Vehicle Type
Touring Car
Terrain Compatibility
Compatible Scale
1:10
Compatible Fuel Type
Electric

What Is Included

Included bearing sizes for this Metal-Shielded Bearing Kit:

    Bearings
    • 3x6x2.5mm flanged (3)
    • 4x7x2.5mm (5)
    • 5x8x2.5mm (3)
    • 5x10x4mm (14)
    • 10x15x4mm (5)

What Is Not Included

Only the bearings identified in the included-bearing-size list are part of this kit. 

The RC vehicle and separately sold parts are not included unless specifically listed.

Installation & Model Notes

Compatibility Title: HPI Racing RS4 Pro 4 / Pro 4 Hara Edition 1/10 Electric Touring Car Compatibility

Quick Fit Summary:

  • Compatible Brand: HPI Racing

  • Fit: Model-specific for the listed RC model/platform: RS4 Pro 4 / Pro 4 Hara Edition

  • Compatible RC Model/OEM Numbers: 185, 187

  • Scale: 1/10

  • Power Source / Fuel Type: Electric

  • Battery / Cell Count: Not currently verified.

  • Drive Type: 4WD

  • Vehicle Type: Touring Car

  • Chassis: RS4 Pro 4 carbon fiber twin deck touring car

  • Era: Not currently verified.

  • OEM / Models: 185, 187

  • RC Model Terrain: On-Road

This Kit Details:

  • SKU: hpi011b

  • MPN: hpi011b

  • Bearing Type: Metal-Shielded Bearings (On-Road / Low-Drag)

  • Sealed Bearings: No

  • Water/Dust Protection: Low-drag, not sealed

  • Product Material: Carbon Chrome Steel Bearings

  • Product Color: Silver

  • Bearing Sizes Included: 3x6x2.5mm flanged (3); 4x7x2.5mm (5); 5x8x2.5mm (3); 5x10x4mm (14); 10x15x4mm (5)

Release / Catalog Date: 2003 (Pro 4), 2004 (Hara Edition)

Product Benefits: This HPI bearings kit uses metal shielded, low-drag bearings for RS4 Pro 4 / Pro 4 Hara Edition maintenance and clean, dry, low-debris running. The bearings help reduce friction in drivetrain and rolling assemblies, with reduced friction support for smooth on-road performance.

Fitment Note: Match each included bearing size to the removed factory bearing and confirm smooth rotation before final assembly.

OEM Alias Coverage: 185, 187

Terrain Compatibility: On-Road

Metal-Shielded Bearing Kit Details

Review the bearing-kit details below before ordering.

RCScrewZ Kit Part Number
hpi011b
Product Brand
RCScrewZ
Shielding Type
Metal-Shielded (On-Road)
Sealed Bearing Status
No
Bearing Material
Carbon Chrome Bearings
Approximate Piece Count
Color
Silver

Before Ordering

  • Confirm your exact RC model, RC brand, and OEM/model number whenever possible.
  • Review the included-bearing-size list before purchase.
  • Read the installation and model notes before disassembly or installation.

Vehicle versions, chassis revisions, and model-year configurations can differ. 

Confirm fitment before purchase when your RC vehicle differs from the details shown above.

Fits: HPI Racing RS4 Pro 4 Hara 1/10 Electric Touring (185, 187)
$49.88
Back to HPI RS4 Pro 4 & Hara Edition 1/10 Touring Car (#185, #187) — Compatible Kits by RCScrewZ (Screws & Bearings)

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