---
product_id: 428480971
title: "Upgrade Extruder Idler Arm U Groove Gear Bearing Compatible with Sidewinder X1 X2 / Metal Titan Aero Extruder Prusa i3 MK2 4max pro Genius Chiron 3D Printer (Grooved +Black)"
brand: "polisi3d"
price: "VT4679"
currency: VUV
in_stock: true
reviews_count: 13
url: https://www.desertcart.vu/products/428480971-upgrade-extruder-idler-arm-u-groove-gear-bearing-compatible-sidewinder
store_origin: VU
region: Vanuatu
---

# 1.75mm filament Aluminum alloy U groove gear Upgrade Extruder Idler Arm U Groove Gear Bearing Compatible with Sidewinder X1 X2 / Metal Titan Aero Extruder Prusa i3 MK2 4max pro Genius Chiron 3D Printer (Grooved +Black)

**Brand:** polisi3d
**Price:** VT4679
**Availability:** ✅ In Stock

## Summary

> 🚀 Elevate Your 3D Printing Experience!

## Quick Answers

- **What is this?** Upgrade Extruder Idler Arm U Groove Gear Bearing Compatible with Sidewinder X1 X2 / Metal Titan Aero Extruder Prusa i3 MK2 4max pro Genius Chiron 3D Printer (Grooved +Black) by polisi3d
- **How much does it cost?** VT4679 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.vu](https://www.desertcart.vu/products/428480971-upgrade-extruder-idler-arm-u-groove-gear-bearing-compatible-sidewinder)

## Best For

- polisi3d enthusiasts

## Why This Product

- Trusted polisi3d brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Durable Design:** Crafted from high-quality aluminum alloy for long-lasting performance.
- • **Easy Installation:** Comes fully assembled with springs for a hassle-free upgrade.
- • **Enhanced Stability:** The groove design prevents filament slippage, ensuring consistent prints.
- • **Universal Compatibility:** Perfectly fits a range of popular 3D printers including Sidewinder X1/X2 and Prusa i3 MK2.
- • **Upgrade Your Printing Game:** Experience seamless filament flow with the U groove gear bearing.

## Overview

The Upgrade Extruder Idler Arm U Groove Gear Bearing is a high-performance component designed for various 3D printers, including the Sidewinder X1/X2 and Prusa i3 MK2. Made from durable aluminum alloy, it features a U groove gear bearing that enhances filament stability and flow, making it an essential upgrade for any serious 3D printing enthusiast.

## Description

Package: 1piece idler arm assembled with U groove gear bearing, 2pcs springs

## Features

- This idler arm is upgraded with U groove gear bearing to replace the old version with smooth surface bearing. A groove in the middle, the filaments are not easy to slip when you printer works.
- Compatible with original titan extruder, titan aero extruder, Prusa i3 MK2 3D Printer, Sidewinder X1 X2, Genius printer's extruder, Anycubic Chiron, 4max pro and Sovol SV01 D Printer
- Used for 1.75mm filament. Material: Aluminum alloy, stable, good quality
- Package: 1piece idler arm assembled with U groove gear bearing, 2pcs springs

## Images

![Upgrade Extruder Idler Arm U Groove Gear Bearing Compatible with Sidewinder X1 X2 / Metal Titan Aero Extruder Prusa i3 MK2 4max pro Genius Chiron 3D Printer (Grooved +Black) - Image 1](https://m.media-amazon.com/images/I/61fJFumt4bL.jpg)

## Customer Reviews

### ⭐⭐⭐⭐⭐ 5.0 out of 5 stars







  
  
    drop-in replacement
  

*by S***R on Reviewed in the United States on December 6, 2022*

Fits and works great.Only note is i swapped the filament guide bearing from the stock idler arm; this replacement arm has a standard bearing instead of the 'grooved' bearing that comes on the stock one. Not sure if that's 100% necessary but seems to me that the grooved bearing guides the filament better.

### ⭐⭐⭐⭐⭐ 5.0 out of 5 stars







  
  
    It does what it's supposed to.
  

*by J***G on Reviewed in the United States on January 26, 2024*

I really just needed the spring after I lost mine while reassembling my extruder. I put this on and it performs as expected.

### ⭐⭐⭐⭐⭐ 5.0 out of 5 stars







  
  
    Better Than Expected
  

*by A***R on Reviewed in the United States on July 13, 2020*

The original, plastic idler arm was leaning very far to the left and not feeding filament correctly. Technically is wasn't broken. Maybe bent? Thanks to another reviewer for pointing out that the bearing is flat on this unit, which is not correct for the Artillery  Genius. I had to destroy the original idler arm to remove the bearing but was able to install it into the metal idler arm without any problems.Overall this unit is well made and instills much more confidence when feeding new filament. I also learned a lot about my printer while making this improvement. I took the opportunity to do maintenance, clean and tighten everything. The printer works better than new at this point.

## Frequently Bought Together

- Upgrade Extruder Idler Arm U Groove Gear Bearing Compatible with Sidewinder X1 X2 / Metal Titan Aero Extruder Prusa i3 MK2 4max pro Genius Chiron 3D Printer (Grooved +Black)
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**Shop now:** [https://www.desertcart.vu/products/428480971-upgrade-extruder-idler-arm-u-groove-gear-bearing-compatible-sidewinder](https://www.desertcart.vu/products/428480971-upgrade-extruder-idler-arm-u-groove-gear-bearing-compatible-sidewinder)

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*Product available on Desertcart Vanuatu*
*Store origin: VU*
*Last updated: 2026-02-21*