5-Pack MK7 MK8 Brass Extruder Drive Gear 26/40 Tooth – Ender 3 CR10

5-Pack MK7 MK8 Brass Extruder Drive Gear – 26 & 40 Tooth for Ender 3, CR-10 & More

Keep your 3D printer running at peak performance with this set of 5 precision-machined brass extruder drive gears. Whether you're replacing a worn component or stocking up on spares, these MK7/MK8-compatible feeding gears deliver consistent, reliable filament grip for cleaner, more accurate prints every time.

Key Features

• Premium Brass Construction: Machined from solid brass for excellent durability, corrosion resistance, and long-term wear performance.
• Dual Tooth Options: Includes both 26-tooth and 40-tooth configurations, giving you flexibility for different extruder setups.
• Precise Filament Feeding: Sharply cut teeth grip filament firmly and evenly, helping to reduce slippage and improve print consistency.
• Wide Compatibility: Designed to fit MK7 and MK8 extruders used on popular printers including CR-10, CR-10S, S4, S5, Ender 3, Ender 3 Pro, Anet A8, Anet A6, and most standard FDM 3D printers.
• Easy Drop-In Replacement: Swaps directly into existing extruder assemblies — no modification required.
• 5-Piece Value Pack: Get 5 gears in one order so you always have a spare on hand when you need it most.

Specifications

Why Upgrade Your Extruder Gear?

The extruder drive gear is one of the most critical components in your 3D printer's extrusion system. A worn or damaged gear causes filament slipping, under-extrusion, and inconsistent print quality. Swapping to a fresh brass gear can immediately restore reliable filament feeding and help you get back to producing great prints with confidence.

⚠ Safety Note: These are small parts — please keep away from children under 3 years of age. Manual measurements may allow slight tolerances; actual dimensions may vary minimally from stated specs. Colors may appear slightly different on various screens.

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Frequently Asked Questions

Q: Are these brass extruder gears compatible with both Ender 3 and CR-10 series printers?

A: Yes! These MK7/MK8 brass drive gears are fully compatible with the Ender 3, Ender 3 Pro, CR-10, CR-10S, CR-10 S4, and CR-10 S5, as well as Anet A8, Anet A6, and most other standard FDM 3D printers that use MK7 or MK8 extruder assemblies.

Q: What is the difference between the 26-tooth and 40-tooth extruder gears?

A: The 26-tooth gear provides a higher torque-to-speed ratio suitable for certain extruder configurations, while the 40-tooth gear is commonly used in standard MK8 direct-drive and Bowden extruder setups. Having both options in your kit ensures you have the right gear for your specific printer model and setup.

Q: How do I know when my extruder drive gear needs to be replaced?

A: Common signs of a worn extruder drive gear include filament slipping or grinding noises during extrusion, under-extrusion leading to gaps in your prints, inconsistent layer deposition, or visible wear on the gear teeth. Replacing the gear with one of these brass drive gears can restore smooth, reliable filament feeding.

Q: Do these gears require any modification for installation?

A: No modification is required. These are direct drop-in replacement gears designed to the MK7/MK8 standard dimensions, making installation straightforward on all compatible printers.

Production & Packaging Notice

To maintain high stock availability and fast shipping times, our items are sourced from multiple verified manufacturing facilities. While the core quality, materials, and product specifications remain identical, you may notice slight variations in the packaging design, manufacturing origin, or the wording of the printed instructions.