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RCScrewZ Rubber Shielded Bearing Kit hpi003r for HPI Racing Savage 21 RTR / Kit 1/8 Nitro 4WD Monster Truck (#831, #12840) | RCX
RCScrewZ
SKU: hpi003r
- Regular price
- $53.67
- Sale price
- $53.67
- Regular price
-
$59.95
Available Quantity: 100
Over 99% positive over ~14,000 orders on eBay (last 12 months) — as of October 2025. View on eBay
This page shows the Rubber-Shielded Bearing Kit for this RC model — view all compatible Screw and Bearing kits for this RC model by clicking this link:
HPI Savage 21 RTR/Kit 1/8 Nitro Truck (#831)/(#12840) — 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.
- Compatible Brand: HPI Racing
- RC Model: HPI Racing Savage 21 1/8 Nitro 4WD Monster Truck (831, 12840)
- Scale: 1:8
- Power Source / Fuel Type: Nitro & Glow Fuel
- Chassis: Savage 21 monster truck
- Era: Not currently verified.
- OEM / Models: 831, 12840
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 Savage 21 1/8 Nitro 4WD Monster Truck (831, 12840)
- Compatible RC Model Numbers: 831 · 12840
- Scale: 1:8
- Power Source / Fuel Type: Nitro & Glow Fuel
- Vehicle Type: Monster Truck
- Chassis: Savage 21 monster truck
- Era: Not currently verified.
- RC Model Terrain: Off-Road
This Kit Details
- SKU: hpi003r
- MPN: hpi003r
- Product: Off-Road RC Bearing Kit
- Bearing Type: Rubber-Sealed (Off-Road)
- Sealed Bearings: Yes
- Water/Dust Protection: Sealed against dirt & splash
- Product Material: Dust-Resistant Carbon Chrome
- Product Color: Silver
- Bearing Sizes Included: 5x10x4mm bearings · 5x11x4mm bearings · 6x10x3mm bearings · 6x13x5mm bearings · 8x16x5mm bearings · 10x16x5mm bearings
- Tips: Seat fully · Do not over-tighten · After wet runs: clean, dry, re-lube
- 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 Savage 21 1/8 Nitro 4WD Monster Truck (831, 12840)
- Compatible RC Brand
- HPI Racing
- RC Vehicle OEM / Model Number(s)
- 12840, 831
- RCScrewZ Kit Part Number
- hpi003r
Vehicle Compatibility Details
Review these vehicle details to help confirm compatibility with your RC model.
- RC Vehicle OEM / Model Number(s)
- 12840, 831
- RC Chassis Compatibility
- Savage 21 monster truck
- Compatible Vehicle Type
- Monster Truck
- Terrain Compatibility
- Compatible Scale
- 1:8
- Compatible Fuel Type
- Nitro & Glow Fuel
What Is Included
Included bearing sizes for this Rubber-Sealed Bearing Kit:
- 5x10x4mm bearings
- 5x11x4mm bearings
- 6x10x3mm bearings
- 6x13x5mm bearings
- 8x16x5mm bearings
- 10x16x5mm 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 Savage 21 RTR / Kit 1/8 Nitro Monster Truck Compatibility
Quick Fit Summary:
Compatible Brand: HPI Racing
Fit: Model-specific for the listed RC model/platform: Savage 21 RTR / Kit
Compatible RC Model/OEM Numbers: 831, 12840
Scale: 1/8
Power Source / Fuel Type: Nitro
Battery / Cell Count: Not currently verified.
Drive Type: 4WD
Vehicle Type: Monster Truck
Chassis: Savage 21 monster truck
Era: Not currently verified.
OEM / Models: 831, 12840
RC Model Terrain: Off-Road
This Kit Details:
SKU: hpi003r
MPN: hpi003r
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: 5x10x4mm bearings; 5x11x4mm bearings; 6x10x3mm bearings; 6x13x5mm bearings; 8x16x5mm bearings; 10x16x5mm bearings
Release / Catalog Date: Not currently verified.
Product Benefits: This HPI sealed bearing kit gives Savage 21 RTR / Kit 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 off-road bashing, dirt, dust, debris, and durability 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: 831, 12840
Terrain Compatibility: Off-Road
Rubber-Sealed Bearing Kit Details
Review the bearing-kit details below before ordering.
- RCScrewZ Kit Part Number
- hpi003r
- 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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