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 los054r for Losi Night Crawler RTR 1/10 Electric 4WD Rock Crawler (LOSB0104) | SET

RCScrewZSKU: los054r

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

Fits: Losi Night Crawler 1/10 Electric 4WD Crawler (LOSB0104)
OEM / model: LOSB0104

US
Regular price
$53.67
Sale price
$53.67
Regular price
$59.95

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
Losi Night Crawler 1/10 Electric 4WD Crawler (LOSB0104)
OEM / model number
LOSB0104
Kit type
Rubber-Shielded Bearing Kit β€” Sealed for Off-Road Protection
Scale
1:10
Power
Electric
View all verified kits for this model β†’
More compatibility details
RC brand
Losi
Vehicle class
Land
Kit SKU
los054r
Model series
Night Crawler
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:

  • 4x8x3mm bearings
  • 5x10x4mm bearings
  • 5x11x4mm bearings
  • 6x12x4mm bearings
  • 10x15x4mm bearings
  • 12x18x4mm 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) β€” 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
Losi Night Crawler 1/10 Electric 4WD Crawler (LOSB0104)
Compatible RC Brand
Losi
RC Vehicle OEM / Model Number(s)
LOSB0104
RCScrewZ Kit Part Number
los054r

Vehicle Compatibility Details

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

RC Vehicle OEM / Model Number(s)
LOSB0104
RC Chassis Compatibility
Losi Night Crawler 4WD Rock Crawler Chassis (LOSB0104)
Compatible Vehicle Type
1/10 Electric 4WD Rock Crawler
Terrain Compatibility
Compatible Scale
1:10
Compatible Fuel Type
Electric

What Is Included

Included bearing sizes for this Rubber-Sealed Bearing Kit:

  • 4x8x3mm bearings
  • 5x10x4mm bearings
  • 5x11x4mm bearings
  • 6x12x4mm bearings
  • 10x15x4mm bearings
  • 12x18x4mm 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

Rubber Shielded Bearing Kit Compatibility:

Quick Fit Summary:

  • Compatible Brand: Losi

  • Fit: Model-specific fitment for Losi Night Crawler RTR

  • Compatible RC Model/OEM Numbers: LOSB0104

  • Scale: 1/10

  • Power Source / Fuel Type: Electric

  • Battery / Cell Count: Not currently verified.

  • Drive Type: 4WD

  • Vehicle Type: Rock Crawler

  • Chassis: Losi Night Crawler 4WD Rock Crawler Chassis (LOSB0104)

  • Era: Modern Transition (2000-2009)

  • OEM / Models: LOSB0104

  • RC Model Terrain: Off-Road: Rocks, Trails & Crawling

This Kit Details:

  • SKU: los054r

  • MPN: los054r

  • Kit Type: Rubber Shielded Bearing Kit

  • Bearing Type: Rubber-Shielded (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 Size Details:

  • 4x8x3mm bearings

  • 5x10x4mm bearings

  • 5x11x4mm bearings

  • 6x12x4mm bearings

  • 10x15x4mm bearings

  • 12x18x4mm bearings

OEM / Model Code / Alias Coverage: LOSB0104.

Model Family Coverage: Night Crawler.

Product Benefits: Sealed bearing protection for off-road, dusty, dirty, outdoor, bashing, racing, and debris-prone RC use.

Reason to Purchase: Choose rubber shielded bearings when sealed dirt, dust, and debris protection matters more than the lowest rolling drag.

Fitment Note: Confirm your vehicle is the Losi Night Crawler RTR with OEM/model code LOSB0104 before ordering.

Reference Date: Official manual published 2009.

Search-Friendly Notes: Losi parts, Losi screw kit, Losi bearing kit, losi night crawler, RC rebuild, upgrade, and maintenance.

Rubber-Sealed Bearing Kit Details

Review the bearing-kit details below before ordering.

RCScrewZ Kit Part Number
los054r
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: Losi Night Crawler 1/10 Electric 4WD Crawler (LOSB0104)
$53.67