Why Choose This Kit

Key features and intended use for this kit.

Shield type

Rubber-Sealed (Off-Road)

Protection focus

Sealed against dirt & splash

Best suited for

Off-road / dirty conditions

Rubber-Shielded Bearings

RCScrewZ Rubber Shielded Bearing Kit hpi004r for HPI Racing Micro RS4 1/18 Electric 4WD Belt-Drive Touring / Drift Car (#610, #619, #621, #635, #111230, #112468, #120101, MICRO-RS4) | SET

RCScrewZSKU: hpi004r

Rubber-shielded bearings for land-based RC use where added protection from dust, dirt, sand, and mud is preferred.

Fits: HPI Racing Micro RS4 1/18 Elec 4WD Touring/Drift (610, 619)
OEM / model: MICRO-RS4, MICRORS4, 610, 619, 621, 635, 111230, 112468, 120101

US
Regular price
$38.94
Sale price
$38.94
Regular price
$43.95

In stock

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Confirm this kit fits your RCMatch the RC model and OEM/model number shown above to your vehicle.

Exact model check

Confirm This Fits Your RC

Match the RC model and OEM/model number below before ordering.

RC model
HPI Racing Micro RS4 1/18 Elec 4WD Touring/Drift (610, 619)
OEM / model number
MICRO-RS4, MICRORS4, 610, 619, 621, 635, 111230, 112468, 120101
Kit type
Rubber-Shielded Bearing Kit — Sealed for Off-Road Protection
Scale
1:18
Power
Electric
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More compatibility details
RC brand
HPI Racing
Vehicle class
Land
Kit SKU
hpi004r
Model series
Micro RS4
Product information

Everything You Need Before Ordering

Review what is included, installation notes, shipping details, and complete kit information.

Kit Contents & Installation

What’s Included Model-specific bearing set with one spare of each included size.
  • All bearing sizes listed below for this model-specific kit
  • One spare of each included size
  • Bearing styles vary by RC model and may include standard, flanged, one-way, or thrust bearings

Included bearing sizes for this kit:

  • 3x8x3mm bearings
  • 3x8x3.5mm thrust bearings
  • 5x8x2.5mm bearings
  • 5x11x4mm bearings
  • 6x10x3mm bearings
Installation & Model NotesInstallation, cleaning, inspection, and model-specific guidance.

Seat bearings fully and squarely. Do not force them into the housing or overtighten the hardware that retains them.

After dusty, muddy, or wet runs, clean the bearing exterior and dry it thoroughly.

Inspect the bearings for roughness, binding, noise, or excessive play before reuse; service or replace them as needed.

Details & Support

Kit Details Rubber-sealed protection for off-road, dusty, dirty, and muddy running conditions.
Seal Type
Rubber-Sealed Bearings
Protection Priority
Improved protection against dirt and splash; not waterproof
Best For
Off-road use, dust, dirt, sand, mud, and lower-maintenance protection
Performance Tradeoff
Protection is prioritized over the lowest possible drag
Not Ideal For
Clean, dry on-road or prepared-surface use when lower drag is the priority
Prefer Metal-Shielded?
Choose Metal-Shielded bearings for cleaner on-road or prepared surfaces when lower drag is the priority.
Shipping & Returns Handling time, current delivery estimate, and return policy.
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.

Over 99% positive over ~14,000 orders on eBay (last 12 months) — as of October 2025. View on eBay

Full Product Description Read the complete product specifications and details.

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
hpi004r

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 Rubber-Sealed 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: hpi004r

  • MPN: hpi004r

  • Bearing Type: Rubber-Shielded Bearings (Off-Road / Sealed)

  • Sealed Bearings: Yes

  • Water/Dust Protection: Sealed protection against dirt, dust, and debris

  • 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 sealed bearing kit gives Micro RS4 a rubber shielded bearing refresh for contamination resistance, maintenance, and consistent RC rebuild value. Rubber shielded bearings add sealed protection against dirt, dust, and debris for bashing, rally, street, track, or off-road use as applicable.

Reason to Purchase: choose rubber shielded bearings when dust, dirt, debris, parking-lot grit, street dust, and longer maintenance intervals matter more than the lowest possible rolling drag of metal shielded bearings.

Fitment Note: Match each included bearing size to the removed factory bearing, press bearings in squarely, and check for smooth movement before running the RC model.

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

Terrain Compatibility: On-Road

Rubber-Sealed Bearing Kit Details

Review the bearing-kit details below before ordering.

RCScrewZ Kit Part Number
hpi004r
Product Brand
RCScrewZ
Shielding Type
Rubber-Sealed (Off-Road)
Sealed Bearing Status
Yes
Bearing Material
Dust-Resistant Carbon Chrome
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.

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Fits: HPI Racing Micro RS4 1/18 Elec 4WD Touring/Drift (610, 619)
$38.94