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J-M SUPPLIES RC Parts Store - RCScrewZ Metal Shielded Bearing Kit hpi004b for HPI Racing Micro RS4 1/18 Electric 4WD Belt-Drive Touring / Drift Car (#610, #619, #621, #635, #111230, #112468, #120101, MICRO-RS4) | RCX
J-M SUPPLIES RC Parts Store - RCScrewZ Metal Shielded Bearing Kit hpi004b for HPI Racing Micro RS4 1/18 Electric 4WD Belt-Drive Touring / Drift Car (#610, #619, #621, #635, #111230, #112468, #120101, MICRO-RS4) | RCX
J-M SUPPLIES RC Parts Store - RCScrewZ Metal Shielded Bearing Kit hpi004b for HPI Racing Micro RS4 1/18 Electric 4WD Belt-Drive Touring / Drift Car (#610, #619, #621, #635, #111230, #112468, #120101, MICRO-RS4) | RCX
J-M SUPPLIES RC Parts Store - RCScrewZ Metal Shielded Bearing Kit hpi004b for HPI Racing Micro RS4 1/18 Electric 4WD Belt-Drive Touring / Drift Car (#610, #619, #621, #635, #111230, #112468, #120101, MICRO-RS4) | RCX
J-M SUPPLIES RC Parts Store - RCScrewZ Metal Shielded Bearing Kit hpi004b for HPI Racing Micro RS4 1/18 Electric 4WD Belt-Drive Touring / Drift Car (#610, #619, #621, #635, #111230, #112468, #120101, MICRO-RS4) | RCX
J-M SUPPLIES RC Parts Store - RCScrewZ Metal Shielded Bearing Kit hpi004b for HPI Racing Micro RS4 1/18 Electric 4WD Belt-Drive Touring / Drift Car (#610, #619, #621, #635, #111230, #112468, #120101, MICRO-RS4) | RCX
J-M SUPPLIES RC Parts Store - RCScrewZ Metal Shielded Bearing Kit hpi004b for HPI Racing Micro RS4 1/18 Electric 4WD Belt-Drive Touring / Drift Car (#610, #619, #621, #635, #111230, #112468, #120101, MICRO-RS4) | RCX
J-M SUPPLIES RC Parts Store - RCScrewZ Metal Shielded Bearing Kit hpi004b for HPI Racing Micro RS4 1/18 Electric 4WD Belt-Drive Touring / Drift Car (#610, #619, #621, #635, #111230, #112468, #120101, MICRO-RS4) | RCX
J-M SUPPLIES RC Parts Store - RCScrewZ Metal Shielded Bearing Kit hpi004b for HPI Racing Micro RS4 1/18 Electric 4WD Belt-Drive Touring / Drift Car (#610, #619, #621, #635, #111230, #112468, #120101, MICRO-RS4) | RCX
J-M SUPPLIES RC Parts Store - RCScrewZ Metal Shielded Bearing Kit hpi004b for HPI Racing Micro RS4 1/18 Electric 4WD Belt-Drive Touring / Drift Car (#610, #619, #621, #635, #111230, #112468, #120101, MICRO-RS4) | RCX
J-M SUPPLIES RC Parts Store - RCScrewZ Metal Shielded Bearing Kit hpi004b for HPI Racing Micro RS4 1/18 Electric 4WD Belt-Drive Touring / Drift Car (#610, #619, #621, #635, #111230, #112468, #120101, MICRO-RS4) | RCX
J-M SUPPLIES RC Parts Store - RCScrewZ Metal Shielded Bearing Kit hpi004b for HPI Racing Micro RS4 1/18 Electric 4WD Belt-Drive Touring / Drift Car (#610, #619, #621, #635, #111230, #112468, #120101, MICRO-RS4) | RCX
J-M SUPPLIES RC Parts Store - RCScrewZ Metal Shielded Bearing Kit hpi004b for HPI Racing Micro RS4 1/18 Electric 4WD Belt-Drive Touring / Drift Car (#610, #619, #621, #635, #111230, #112468, #120101, MICRO-RS4) | RCX
J-M SUPPLIES RC Parts Store - RCScrewZ Metal Shielded Bearing Kit hpi004b for HPI Racing Micro RS4 1/18 Electric 4WD Belt-Drive Touring / Drift Car (#610, #619, #621, #635, #111230, #112468, #120101, MICRO-RS4) | RCX
J-M SUPPLIES RC Parts Store - RCScrewZ Metal Shielded Bearing Kit hpi004b for HPI Racing Micro RS4 1/18 Electric 4WD Belt-Drive Touring / Drift Car (#610, #619, #621, #635, #111230, #112468, #120101, MICRO-RS4) | RCX
J-M SUPPLIES RC Parts Store - RCScrewZ Metal Shielded Bearing Kit hpi004b for HPI Racing Micro RS4 1/18 Electric 4WD Belt-Drive Touring / Drift Car (#610, #619, #621, #635, #111230, #112468, #120101, MICRO-RS4) | RCX

RCScrewZ Metal Shielded Bearing Kit hpi004b for HPI Racing Micro RS4 1/18 Electric 4WD Belt-Drive Touring / Drift Car (#610, #619, #621, #635, #111230, #112468, #120101, MICRO-RS4) | RCX

RCScrewZ

SKU: hpi004b

Regular price
$38.94
Sale price
$38.94
Regular price
$43.95
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Quick snapshot of availability, estimated delivery, and our shipping/returns.

Available Quantity: 100

Free shipping on all U.S. orders (USPS Priority Mail).
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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 Racing Micro RS4 1/18 Electric Touring Car — 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 Micro RS4 1/18 Elec 4WD Touring/Drift (610, 619)
  • Scale: 1:18
  • Power Source / Fuel Type: Electric
  • Chassis: Micro RS4 touring / drift car
  • Era: Not currently verified.
  • OEM / Models: MICRO-RS4, MICRORS4, 610, 619, 621, 635, 111230, 112468, 120101
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
  • Fit: HPI Racing Micro RS4 1/18 Elec 4WD Touring/Drift (610, 619)
  • Compatible RC Model Numbers: MICRO-RS4 · MICRORS4 · 610 · 619 · 621 · 635 · 111230 · 112468 · 120101
  • Scale: 1:18
  • Power Source / Fuel Type: Electric
  • Vehicle Type: Drift Car
  • Chassis: Micro RS4 touring / drift car
  • Era: Not currently verified.
  • RC Model Terrain: On-Road

This Kit Details

  • SKU: hpi004b
  • MPN: hpi004b
  • 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: 3x8x3mm bearings · 3x8x3.5mm thrust bearings · 5x8x2.5mm bearings · 5x11x4mm bearings · 6x10x3mm bearings
  • 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 Micro RS4 1/18 Elec 4WD Touring/Drift (610, 619)
Compatible RC Brand
HPI Racing
RC Vehicle OEM / Model Number(s)
111230, 112468, 120101, 610, 619, 621, 635, MICRO-RS4, MICRORS4
RCScrewZ Kit Part Number
hpi004b

Vehicle Compatibility Details

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

RC Vehicle OEM / Model Number(s)
111230, 112468, 120101, 610, 619, 621, 635, MICRO-RS4, MICRORS4
RC Chassis Compatibility
Micro RS4 touring / drift car
Compatible Vehicle Type
Drift Car
Terrain Compatibility
Compatible Scale
1:18
Compatible Fuel Type
Electric

What Is Included

Included bearing sizes for this Metal-Shielded Bearing Kit:

  • 3x8x3mm bearings
  • 3x8x3.5mm thrust bearings
  • 5x8x2.5mm bearings
  • 5x11x4mm bearings
  • 6x10x3mm bearings

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 Micro RS4 1/18 Electric Drift Car Compatibility

Quick Fit Summary:

  • Compatible Brand: HPI Racing

  • Fit: Model-specific for the listed RC model/platform: Micro RS4

  • Compatible RC Model/OEM Numbers: MICRO-RS4, MICRORS4, 610, 619, 621, 635, 111230, 112468, 120101

  • Scale: 1/18

  • Power Source / Fuel Type: Electric

  • Battery / Cell Count: Not currently verified.

  • Drive Type: 4WD belt-drive

  • Vehicle Type: Drift Car

  • Chassis: Micro RS4 touring / drift car

  • Era: Not currently verified.

  • OEM / Models: MICRO-RS4, MICRORS4, 610, 619, 621, 635, 111230, 112468, 120101

  • RC Model Terrain: On-Road

This Kit Details:

  • SKU: hpi004b

  • MPN: hpi004b

  • 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: 3x8x3mm bearings; 3x8x3.5mm thrust bearings; 5x8x2.5mm bearings; 5x11x4mm bearings; 6x10x3mm bearings

Release / Catalog Date: Not currently verified.

Product Benefits: This HPI bearings kit uses metal shielded, low-drag bearings for Micro RS4 maintenance and clean, dry, low-debris running. The bearings help reduce friction in drivetrain and rolling assemblies while the metal shields maintain reduced friction, low-drag performance for clean running conditions.

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

OEM Alias Coverage: MICRO-RS4, MICRORS4, 610, 619, 621, 635, 111230, 112468, 120101

Terrain Compatibility: On-Road

Metal-Shielded Bearing Kit Details

Review the bearing-kit details below before ordering.

RCScrewZ Kit Part Number
hpi004b
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 Micro RS4 1/18 Elec 4WD Touring/Drift (610, 619)
$38.94

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