---
product_id: 142321338
title: "BCZAMD 3D Printer Accessories MK2/MK2.5/MK3 Parts Extruder Driving Gear Kit Dual Gears Steel Pulleys Kit Gears Extrusion Wheel for Prus i3 DIY"
brand: "bczamd"
price: "R489"
currency: ZAR
in_stock: true
reviews_count: 8
url: https://www.desertcart.co.za/products/142321338-bczamd-3d-printer-accessories-mk2-mk2-5-mk3-parts-extruder
store_origin: ZA
region: South Africa
---

# Precision CNC machining for flawless filament grip Fits standard 5mm Nema17 shafts with M3 adjusting screw Dual hardened steel gears for ultimate durability BCZAMD 3D Printer Accessories MK2/MK2.5/MK3 Parts Extruder Driving Gear Kit Dual Gears Steel Pulleys Kit Gears Extrusion Wheel for Prus i3 DIY

**Brand:** bczamd
**Price:** R489
**Availability:** ✅ In Stock

## Summary

> ⚙️ Elevate your 3D printing game with precision-driven power!

## Quick Answers

- **What is this?** BCZAMD 3D Printer Accessories MK2/MK2.5/MK3 Parts Extruder Driving Gear Kit Dual Gears Steel Pulleys Kit Gears Extrusion Wheel for Prus i3 DIY by bczamd
- **How much does it cost?** R489 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.co.za](https://www.desertcart.co.za/products/142321338-bczamd-3d-printer-accessories-mk2-mk2-5-mk3-parts-extruder)

## Best For

- bczamd enthusiasts

## Why This Product

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

## Key Features

- • **Complete Upgrade Kit:** Includes dual pulleys, bearings, springs, and locking screws for a hassle-free DIY extruder enhancement.
- • **Unmatched Durability:** Hardened steel gears with protective surface treatment ensure long-lasting performance and reliability.
- • **Precision Engineering:** Custom CNC machining delivers exact filament grip, eliminating slipping and boosting print quality.
- • **Seamless Compatibility:** Designed specifically for Prus i3 MK2/MK2.5/MK3 and compatible with Neptune 3 Max extruders for effortless upgrades.
- • **Low Maintenance, High Performance:** Recommended lithium-based grease reduces friction and wear, keeping your extruder running smoothly.

## Overview

The BCZAMD 3D Printer Accessories Extruder Driving Gear Kit is a premium upgrade set for Prus i3 MK2/MK2.5/MK3 printers, featuring dual hardened steel gears with precision CNC machining. Designed for 1.75mm filament and compatible with standard 5mm Nema17 shafts, this kit ensures superior grip, durability, and reliability. Complete with pulleys, bearings, springs, and locking screws, it offers a seamless DIY installation and enhanced extrusion performance.

## Description

Package includes:1 x pulley (with the locking screw).1 x pulley (without locking screw).2 x pulley bearings.2 x M3nS nuts.2 x spring.1 x pulley shaft.1 x 3D printed piece.(Do not include the stepper motor and the black frame.)

Review: Works great! - I started building a back up extruder for my printer and purchased this gear set to complete the filament drive. The parts are machined well, no noticeable burrs or machining oddities you would expect to see. They look like they are made with good material and should last when installed and maintained properly. I have since replaced my stock extruder with the one using these parts and no noticeable differences have been noticed other than the calibration. I am quite happy with these and would definitely buy from this company again.
Review: Worked For My Neptune 3 Max Extruder - The plastic gears in my Neptune's extruder were getting worn. I saw a post on Reddit about the MK3 gears being the same. I ordered this set and it fits like a glove. I plan to order another set to replace the plastic gears in my other Neptune soon.

## Features

- This kit is designed for the Prus i3 3D DIY printer. The gears are supplied as a set consisting of a primary drive wheel with an M3 adjusting screw and will fit a 5mm shaft with a flat side as is the case with standard Nema17 engines.
- this gear kit's spring is 0.8mm wire diam, 5mm idm 15mm length. A secondary drive wheel with integrated high quality bearings and a shaft diameter of 3.00 length 20 mm made from precision ground hardened steel.
- Dual drive gears for 1.75mm filament, precise custom CNC machining with extreme precision guarantees you get the grip you always wanted.
- Made from hardened steel with a protective surface treatment offers you a long service life and extreme reliability.
- It is recommended to use a lithium based grease on the gear section and needle bearings to reduce friction and avoid wear. A small swab of fat is enough.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Customer Reviews | 4.6 out of 5 stars 79 Reviews |

## Images

![BCZAMD 3D Printer Accessories MK2/MK2.5/MK3 Parts Extruder Driving Gear Kit Dual Gears Steel Pulleys Kit Gears Extrusion Wheel for Prus i3 DIY - Image 1](https://m.media-amazon.com/images/I/615w3UoodWL.jpg)
![BCZAMD 3D Printer Accessories MK2/MK2.5/MK3 Parts Extruder Driving Gear Kit Dual Gears Steel Pulleys Kit Gears Extrusion Wheel for Prus i3 DIY - Image 2](https://m.media-amazon.com/images/I/61pUY7zA1ML.jpg)
![BCZAMD 3D Printer Accessories MK2/MK2.5/MK3 Parts Extruder Driving Gear Kit Dual Gears Steel Pulleys Kit Gears Extrusion Wheel for Prus i3 DIY - Image 3](https://m.media-amazon.com/images/I/61ClgDVFbfL.jpg)
![BCZAMD 3D Printer Accessories MK2/MK2.5/MK3 Parts Extruder Driving Gear Kit Dual Gears Steel Pulleys Kit Gears Extrusion Wheel for Prus i3 DIY - Image 4](https://m.media-amazon.com/images/I/51KYMnccx3L.jpg)
![BCZAMD 3D Printer Accessories MK2/MK2.5/MK3 Parts Extruder Driving Gear Kit Dual Gears Steel Pulleys Kit Gears Extrusion Wheel for Prus i3 DIY - Image 5](https://m.media-amazon.com/images/I/51YcEDcm2cL.jpg)

## Customer Reviews

### ⭐⭐⭐⭐⭐ Works great!
*by S***B on November 16, 2023*

I started building a back up extruder for my printer and purchased this gear set to complete the filament drive. The parts are machined well, no noticeable burrs or machining oddities you would expect to see. They look like they are made with good material and should last when installed and maintained properly. I have since replaced my stock extruder with the one using these parts and no noticeable differences have been noticed other than the calibration. I am quite happy with these and would definitely buy from this company again.

### ⭐⭐⭐⭐⭐ Worked For My Neptune 3 Max Extruder
*by P***K on August 24, 2024*

The plastic gears in my Neptune's extruder were getting worn. I saw a post on Reddit about the MK3 gears being the same. I ordered this set and it fits like a glove. I plan to order another set to replace the plastic gears in my other Neptune soon.

### ⭐⭐⭐⭐⭐ Complete Gear Kit - Good quality
*by N***C on September 30, 2020*

Everything you'll need for a Prusa MK3 extruder - throw in magnets and a ball bearing and it works for the MK3S as well. These are good quality. Had to clean up the threads on the drive gear with a tap but I may have cross threaded the grub screw on the first attempt so I'm not sure it's the manufacturers fault. Into my second print now and all seems well - about to buy another set to replace worn gears on another printer. Prior purchases from other vendors resulted in premature wear which causes uneven extrusion and inconsistent retractions - So far these seem good but time will tell. I don't expect them to hold up as well as the real deal from bondtech but for a third of the price, I'll be happy if they last half as long.

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*Product available on Desertcart South Africa*
*Store origin: ZA*
*Last updated: 2026-02-28*