Description

Prusa Heatbed MK52 24V — Complete xBuddy Replacement Set

This is the complete OEM heatbed replacement set for xBuddy-based Prusa printers — the MK3.5, MK3.9, and MK4 series. It’s not just the bed itself; the set includes all wiring, cable covers, mounting hardware, textile sleeving, and the heatbed thermistor, giving you everything needed for a full heatbed replacement in one purchase.

If your heatbed has failed, developed uneven heating, has damaged wiring, or the magnetic mounting has degraded, this set restores your printer to factory specification.

Complete Replacement — Not Just the Bed

Many heatbed failures involve more than just the heating element — wiring insulation degrades from thermal cycling, connectors wear from repeated bed movement, and cable covers crack over time. This set replaces the entire heatbed subsystem at once, eliminating the guesswork of diagnosing which specific wiring component has failed.

28 Neodymium Magnets — Magnetic Sheet Mounting

The heatbed includes 28 pieces of 45SH neodymium block magnets, bonded with Loctite HY 4090 structural adhesive. These magnets hold your PEI or powder-coated print sheet firmly in place during printing while allowing quick sheet swaps between print jobs — no screws, no clips, just drop the sheet on and go.

What’s Included

Heatbed MK52 24V × 1
Heatbed wiring (black) × 1
Heatbed wiring (red) × 1
Heatbed cable cover — top × 1
Heatbed cable cover — bottom × 1
Textile sleeve 5×350mm × 1
Nylon cable tie 2×380mm × 1
M3×10 screws × 5
M3n nuts × 3
M3nN nuts × 2
M3 washers × 2
Heatbed thermistor set × 1

When to Replace

Heatbed failing to heat or heating unevenly across the surface, temperature errors or thermal warnings related to the bed, damaged or frayed heatbed wiring from thermal cycling or movement, cracked or broken cable covers, loose or degraded magnets affecting sheet adhesion, and as part of a complete bed subsystem service.

Specifications

Height: 264.4 mm
Width: 254 mm
Thickness: ~3.175 mm
Maximum working temperature: 120°C
Maximum recommended temperature: 110°C
Voltage: 24V
Current: 6.25A
Magnets: 45SH neodymium block magnets × 28

Compatibility

Prusa MK3.5 / MK3.5S
Prusa MK3.9 / MK3.9S
Prusa MK4 / MK4S

This set is specifically for xBuddy electronics-based printers. Not compatible with the MK3/MK3S/MK3S+, XL, CORE One/CORE One+/CORE One L, Prusa MINI/MINI+, or older MMU-generation printers.

Installation

Refer to the Prusa Knowledge Base repair manual for your specific printer model at help.prusa3d.com. This is a significant repair involving bed removal, wiring routing, and reassembly — follow the manual carefully and ensure the printer is powered off and cooled before starting.