Shield type
Rubber-Sealed (Off-Road)
SAVE
$10.07
$10.07
Why Choose This Kit
Key features and intended use for this kit.
Protection focus
Sealed against dirt & splash
Best suited for
Off-road / dirty conditions
Rubber-Shielded Bearings
RCScrewZ Rubber Shielded Bearing Kit tra107r for Traxxas XRT 8S 1/6 Electric 4WD Race Monster Truck (78086-4) | SET
Rubber-shielded bearings for land-based RC use where added protection from dust, dirt, sand, and mud is preferred.
Fits: Traxxas XRT 8S 1/6 4WD Race MT (78086-4)
OEM / model: 78086-4
US
- Regular price
- $69.88
- Sale price
- $69.88
- Regular price
-
$79.95
In stock
Confirm this kit fits your RCMatch the RC model and OEM/model number shown above to your vehicle.
Confirm This Fits Your RC
Match the RC model and OEM/model number below before ordering.
- RC model
- Traxxas XRT 8S 1/6 4WD Race MT (78086-4)
- OEM / model number
- 78086-4
- Kit type
- Rubber-Shielded Bearing Kit — Sealed for Off-Road Protection
- Scale
- 1:6
- Power
- Electric
More compatibility details
- RC brand
- Traxxas
- Vehicle class
- Land
- Kit SKU
- tra107r
- Model series
- XRT, XRT 8S, 8S Race Truck
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:
- 5x11x4mm bearings
- 6x13x5mm bearings
- 10x15x4mm bearings
- 15x24x5mm bearings
- 17x26x5mm bearings
- 20x32x7mm 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
- Traxxas XRT 8S 1/6 4WD Race MT (78086-4)
- Compatible RC Brand
- Traxxas
- RC Vehicle OEM / Model Number(s)
- 78086-4
- RCScrewZ Kit Part Number
- tra107r
Vehicle Compatibility Details
Review these vehicle details to help confirm compatibility with your RC model.
- RC Vehicle OEM / Model Number(s)
- 78086-4
- RC Chassis Compatibility
- Traxxas XRT 8S Chassis (78086-4)
- Compatible Vehicle Type
- 1/6 Electric 4WD Race Monster Truck
- Terrain Compatibility
- Compatible Scale
- 1:6
- Compatible Fuel Type
- Electric
What Is Included
Included bearing sizes for this Rubber-Sealed Bearing Kit:
- 5x11x4mm bearings
- 6x13x5mm bearings
- 10x15x4mm bearings
- 15x24x5mm bearings
- 17x26x5mm bearings
- 20x32x7mm 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: Traxxas
Fit: Model-specific fitment for Traxxas XRT 8S
Compatible RC Model/OEM Numbers: 78086-4
Scale: 1/6
Power Source / Fuel Type: Electric
Battery / Cell Count: 8S
Drive Type: 4WD
Vehicle Type: Race Monster Truck
Chassis: Traxxas XRT 8S Chassis (78086-4)
Era: Next Gen Era (2020–Present)
OEM / Models: 78086-4
RC Model Terrain: Off-Road: High-Speed Bashing, Dirt & Jumps
This Kit Details:
SKU: tra107r
MPN: tra107r
Kit Type: Rubber Shielded Bearing Kit
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 Size Details:
- 5x11x4mm bearings
- 6x13x5mmm bearings
- 10x15x4mm bearings
- 15x24x5mm bearings
- 17x26x5mm bearings
- 20x32x7mm bearings
OEM / Model Code / Alias Coverage:
- Compatible model reference: Traxxas XRT 8S 1/6 Electric 4WD Race Monster Truck (78086-4)
- OEM/model number coverage: 78086-4
Model Family Coverage:
- Designed for the Traxxas XRT 8S family. Match the OEM/model number before ordering.
- Release / Reference Year: Next Gen XRT model-family reference.
Product Benefits:
- Rubber shielded bearings are the better choice for off-road, dusty, dirty, clay, parking-lot, or mixed-surface use because they add sealed protection compared with low-drag metal shielded bearings.
- Helps refresh drivetrain smoothness and support model-specific RC maintenance.
Reason to Purchase:
- Choose rubber shielded bearings when added contamination protection matters more than the lowest possible rolling drag.
Fitment Note:
- Match your Traxxas model name and OEM/model number before ordering. Do not assume fitment with similar Traxxas models unless listed here.
Search-Friendly Notes:
- Common buyer search phrases include traxxas xrt 8s screw kit and traxxas xrt 8s bearings.
Rubber-Sealed Bearing Kit Details
Review the bearing-kit details below before ordering.
- RCScrewZ Kit Part Number
- tra107r
- 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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Customer Reviews
More Verified Kits for This RC Model
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Stainless Screw Kit
For Traxxas XRT 8S 1/6 4WD Race MT (78086-4) OEM/model: 78086-4
Metal-Shielded Bearing Kit
For Traxxas XRT 8S 1/6 4WD Race MT (78086-4) OEM/model: 78086-4Continue Shopping by RC Model
Fits: Traxxas XRT 8S 1/6 4WD Race MT (78086-4)
$69.88