The Ultimaker Bowden Pack L850 for S Series is a complete OEM replacement bowden tube set with an 850 mm tube length, designed specifically for the Ultimaker S-series 3D printers. The bowden tube is the PTFE guide tube that channels filament from the feeder motor to the hotend. Over time, the inner bore of the bowden tube wears from filament friction, develops flattening at bend points or becomes contaminated with degraded material, causing increased retraction issues, inconsistent extrusion and increased jam frequency.

Replacing the bowden tube with a fresh OEM set is a standard maintenance procedure on high-mileage S-series machines and is one of the most impactful maintenance actions for recovering extrusion reliability and print consistency. The L850 length is the correct specification for S-series printers. Pair this replacement with fresh bowden fasteners (210000007264) for a complete bowden system service in one pass.

Key features

• 850 mm OEM bowden tube length correct for Ultimaker S Series feeder-to-hotend routing.
• Fresh tube interior restores low-friction filament guidance, reducing retraction artifacts and extrusion inconsistency.
• Genuine Ultimaker PTFE tube maintains correct inner diameter tolerance for reliable filament feed at all print speeds.
• Addresses increased retraction distance needs, jam frequency and under-extrusion caused by tube bore wear.
• One of the highest-impact maintenance actions on high-mileage S-series machines for recovering print quality.
• Pair with Ultimaker Bowden Fastener Pack (210000007264) for a complete bowden system overhaul in a single service.

Compatible with: Ultimaker S Series (S3, S5, S7, S8)

In the box: 1 x Ultimaker Bowden Tube - 850 mm (L850)