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Representative image of an RCScrewZ metal-shielded bearing kit for Losi Hammer Rey U4 1/10 Electric 4WD Buggy (LOS03030); exact bearing sizes and quantities vary by RC model.
Representative image of an RCScrewZ metal-shielded bearing kit for Losi Hammer Rey U4 1/10 Electric 4WD Buggy (LOS03030); exact bearing sizes and quantities vary by RC model.
Representative image of an RCScrewZ metal-shielded bearing kit for Losi Hammer Rey U4 1/10 Electric 4WD Buggy (LOS03030); exact bearing sizes and quantities vary by RC model.
Representative image of an RCScrewZ metal-shielded bearing kit for Losi Hammer Rey U4 1/10 Electric 4WD Buggy (LOS03030); exact bearing sizes and quantities vary by RC model.
Representative image of an RCScrewZ metal-shielded bearing kit for Losi Hammer Rey U4 1/10 Electric 4WD Buggy (LOS03030); exact bearing sizes and quantities vary by RC model.
Representative image of an RCScrewZ metal-shielded bearing kit for Losi Hammer Rey U4 1/10 Electric 4WD Buggy (LOS03030); exact bearing sizes and quantities vary by RC model.
Representative image of an RCScrewZ metal-shielded bearing kit for Losi Hammer Rey U4 1/10 Electric 4WD Buggy (LOS03030); exact bearing sizes and quantities vary by RC model.
Representative image of an RCScrewZ metal-shielded bearing kit for Losi Hammer Rey U4 1/10 Electric 4WD Buggy (LOS03030); exact bearing sizes and quantities vary by RC model.
Representative image of an RCScrewZ metal-shielded bearing kit for Losi Hammer Rey U4 1/10 Electric 4WD Buggy (LOS03030); exact bearing sizes and quantities vary by RC model.
Representative image of an RCScrewZ metal-shielded bearing kit for Losi Hammer Rey U4 1/10 Electric 4WD Buggy (LOS03030); exact bearing sizes and quantities vary by RC model.
Representative image of an RCScrewZ metal-shielded bearing kit for Losi Hammer Rey U4 1/10 Electric 4WD Buggy (LOS03030); exact bearing sizes and quantities vary by RC model.
Representative image of an RCScrewZ metal-shielded bearing kit for Losi Hammer Rey U4 1/10 Electric 4WD Buggy (LOS03030); exact bearing sizes and quantities vary by RC model.
Representative image of an RCScrewZ metal-shielded bearing kit for Losi Hammer Rey U4 1/10 Electric 4WD Buggy (LOS03030); exact bearing sizes and quantities vary by RC model.
Representative image of an RCScrewZ metal-shielded bearing kit for Losi Hammer Rey U4 1/10 Electric 4WD Buggy (LOS03030); exact bearing sizes and quantities vary by RC model.
Representative image of an RCScrewZ metal-shielded bearing kit for Losi Hammer Rey U4 1/10 Electric 4WD Buggy (LOS03030); exact bearing sizes and quantities vary by RC model.
Representative image of an RCScrewZ metal-shielded bearing kit for Losi Hammer Rey U4 1/10 Electric 4WD Buggy (LOS03030); exact bearing sizes and quantities vary by RC model.

RCScrewZ Metal Shielded Bearing Kit los132b for Losi Hammer Rey U4 RTR Brushless 1/10 Electric 4WD Rock Racer Desert Buggy (LOS03030) | RCX

RCScrewZ

SKU: los132b

Regular price
$38.94
Sale price
$38.94
Regular price
$43.95
Shipping, stock & payment info
Quick snapshot of availability, estimated delivery, and our shipping/returns.

Available Quantity: 99

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:

Losi Hammer Rey U4 4WD 1/10 RTR (LOS03030) Rock Racer Truck — 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: Losi
  • RC Model: Losi Hammer Rey U4 1/10 Electric 4WD Buggy (LOS03030)
  • Scale: 1:10
  • Power Source / Fuel Type: Electric
  • Chassis: Losi Hammer Rey 3S 4X4 RTR Brushless Desert Buggy (LOS03030)
  • Era: Next Gen Era (2020–Present)
  • OEM / Models: LOS03030
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: Team Losi
  • Fit: Losi Hammer Rey U4 1/10 Electric 4WD Buggy (LOS03030)
  • Compatible RC Model Numbers: LOS03030
  • Scale: 1:10
  • Power Source / Fuel Type: Electric
  • Vehicle Type: 1/10 Electric 4WD Rock Racer Desert Buggy
  • Chassis: Losi Hammer Rey 3S 4X4 RTR Brushless Desert Buggy (LOS03030)
  • Era: Next Gen Era (2020–Present)
  • RC Model Terrain: Off-Road: Desert, Trail, Rock & Dirt

This Kit Details

  • SKU: los132b
  • MPN: los132b
  • Product: Track Racing Bearing Upgrade 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: Note: The specific bearing sizes will be listed soon. In the meantime · please contact us for detailed information about the sizes included in this kit. We're happy to assist you!
  • 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
Losi Hammer Rey U4 1/10 Electric 4WD Buggy (LOS03030)
Compatible RC Brand
Losi
RC Vehicle OEM / Model Number(s)
LOS03030
RCScrewZ Kit Part Number
los132b

Vehicle Compatibility Details

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

RC Vehicle OEM / Model Number(s)
LOS03030
RC Chassis Compatibility
Losi Hammer Rey 3S 4X4 RTR Brushless Desert Buggy (LOS03030)
Compatible Vehicle Type
1/10 Electric 4WD Rock Racer Desert Buggy
Terrain Compatibility
Compatible Scale
1:10
Compatible Fuel Type
Electric

What Is Included

Included bearing sizes for this Metal-Shielded Bearing Kit:

    Note: The specific bearing sizes will be listed soon. In the meantime, please contact us for detailed information about the sizes included in this kit. We're happy to assist you!

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

Metal Shielded Bearing Kit Compatibility:

Quick Fit Summary:

  • Compatible Brand: Losi

  • Fit: Model-specific fitment for Losi Hammer Rey U4 RTR Brushless

  • Compatible RC Model/OEM Numbers: LOS03030

  • Scale: 1/10

  • Power Source / Fuel Type: Electric

  • Battery / Cell Count: 2S/3S compatible

  • Drive Type: 4WD

  • Vehicle Type: Rock Racer Desert Buggy

  • Chassis: Losi Hammer Rey 3S 4X4 RTR Brushless Desert Buggy (LOS03030)

  • Era: Next Gen Era (2020–Present)

  • OEM / Models: LOS03030

  • RC Model Terrain: Off-Road: Desert, Trail, Rock & Dirt

This Kit Details:

  • SKU: los132b

  • MPN: los132b

  • Kit Type: Metal Shielded Bearing Kit

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

  • Sealed Bearings: No

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

  • Product Material: Carbon Chrome Steel Bearings

  • Product Color: Silver

Bearing Size Details: Not currently verified.

OEM / Model Code / Alias Coverage:

  • Verified OEM / Model Codes: LOS03030

  • Model Series / Search Aliases: Hammer Rey, Hammer Rey U4, Rey

Model Family Coverage:

Losi Hammer Rey, Hammer Rey U4, Rey fitment coverage is limited to the OEM/model numbers listed above. Do not assume fitment with nearby Losi/TLR variants unless they share the same verified kit listing.

Product Benefits:

Metal shielded bearings are a low-drag choice for cleaner running, display builds, light-duty use, carpet/asphalt use, and buyers who prefer smoother rolling efficiency over maximum contamination protection.

Fitment Note: Match the OEM/model number and vehicle description before ordering. This kit is intended for the listed Losi/TLR model family only.

Search-Friendly Notes: Useful buyer search phrases include Losi parts, Team Losi parts, TLR parts, Losi screw kit, Losi bearing kit, TLR 8IGHT, 22X-4, Mini JRX2, Hammer Rey, RZR Rey, LMT, and Tenacity where they match the specific model above.

Metal-Shielded Bearing Kit Details

Review the bearing-kit details below before ordering.

RCScrewZ Kit Part Number
los132b
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: Losi Hammer Rey U4 1/10 Electric 4WD Buggy (LOS03030)
$38.94

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