Product Description

Extruder Gear Assembly - P2S is an original assembly kit of extruder gears for Bambu Lab P2 Series (P2S) 3D printers. It is located inside the extruder and is driven by the extrusion motor, which precisely delivers filament to the hotend or pulls it back from the extruder.

Using this original assembly ensures:

• stable and consistent filament feeding,
• reduced risk of gear slipping and skipping,
• more reliable print starts and retractions,
• quick and easy replacement of worn or damaged parts without the need to replace the entire extruder.

It is an ideal spare part if your P2S is experiencing issues such as extruder clicking, skipping, under-extrusion, or "extruder clogged / extrusion motor overloaded" errors.

Package Contents

In the Extruder Gear Assembly - P2S package you will find:

• Extruder Unit Front Cover × 1
• Extruder Gear × 1
• Extruder Idler Pulley × 1
• M3×8 Screw × 1
• Spring × 1
• Washer × 1
• Bearing × 1

This kit contains all key components of the extruder gear mechanism needed for a complete service of the front part of the feeding unit.

Key Features

• Original Bambu Lab spare part – full compatibility and reliability with the P2S printer.
• Precise filament movement – stable feeding into the hotend and clean retractions without slippage.
• Complete gear and cover set – includes drive gear, idler pulley, spring, screw, washer, and bearing.
• Quality materials – combination of plastic and aluminum for low weight and sufficient strength.
• Easy replacement – no need to replace the entire extruder, just replace the gear assembly.
• Optimal for maintenance – suitable as a preventive spare part for high print hours or signs of wear.

Technical Specifications

Compatibility

• P2S
• Other P2 Series printers where compatibility is stated by the manufacturer.

Before purchasing, make sure you are ordering the correct assembly type – this variant is intended for the P2 series extruder, not for X1/P1 or AMS units.

Why replace the extruder gear assembly?

Wear or damage to the extruder gears can manifest as, for example:

• clicking or ticking of the extruder during printing,
• impaired filament feeding,
• frequent extrusion error reports,
• uneven extrusion (under-extrusion/over-extrusion),
• problems loading filament into the extruder.

Timely replacement of this assembly:

• extends extruder lifespan,
• improves print reliability,
• is cheaper than a complete replacement of the entire extruder unit.

Installation and Recommendations

• Perform installation according to the Bambu Lab manual (Bambu Wiki).
• Before replacement, turn off the printer and disconnect from power.
• Ensure correct seating of the gear, pulley, spring, and bearing.
• After replacement, we recommend:
  • checking by manual movement that filament passes through the extruder smoothly,
  • printing a short test model to verify flawless extrusion.

This spare part is suitable for both home users and high-load operations where P2S printers print a large volume of orders and the extruder is under long-term stress.

Key Features:

• Original extruder gear assembly for Bambu Lab P2S
• Ensures precise and reliable filament feeding into the hotend
• Complete set including extruder front cover, gear, idler pulley, spring, bearing, and screw
• Suitable for repairs during clicking, skipping, or extrusion errors
• Made of high-quality plastic and aluminum for low weight and sufficient strength
• Easy replacement without needing to change the entire extruder
• Ideal as a service and maintenance part for Bambu Lab P2 Series printers