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Prusa3D UKStandardChecked 2026-10-01
AvailabilityIn StockDelivery Details At Retailer
Price£499.00Lowest Current Offer
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3DPRINTSCOUTCanonical ProductOne product page. Every useful UK offer.
Prusa3DAccessories
Prusa3D Original Prusa i3 MK3/S/+ to MK3.9S upgrade kit
MK3.9 contains everything from the MK4 except for the X/Y/Z motors ( Nextruder motor is included ). You will reuse the frame, PSU and motors from your MK3S+. And if you want, you can additionally buy the new precise M…
UK Price Tracking1Live Offer
UK Coverage1 In Stock1 Retailer Offer
Product StatusActiveCatalogue Monitored
MPN
GTIN
Source CategoryUpgrades
UK RETAILER PRICES
Current UK Retailer Prices
One product, multiple UK offers. Scout keeps native GBP pricing and stock attached to this product page.
Best Seen Today£499.00
Product Overview
MK3.9 contains everything from the MK4 except for the X/Y/Z motors ( Nextruder motor is included ). You will reuse the frame, PSU and motors from your MK3S+. And if you want, you can additionally buy the new precise MK4 motors (eliminate Vertical Fine Artifacts, 0.9° per step) and complete the upgrade to MK4 later. This product is supplied as a kit - you must assemble it yourself!
Why It Stands OutMK3.9 contains everything from the MK4 except for the X/Y/Z motors ( Nextruder motor is included ). You will reuse the frame, PSU and motors from your MK3S+. And if you want, you can additionally buy the new precise M…
Product Snapshot
Best UK Price£499.00
UK Retailers1
MPN
GTIN
Source CategoryUpgrades
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MPN
GTIN
Source CategoryUpgrades
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Observed price history for Scout's currently ranked UK offer. More retailers will gain individual history as live connectors are added.
Prusa3D UK£499.00
2026-10-012026-10-01
Current Price£499.00
Tracked Low£499.00
Tracked High£499.00
Change+0.0%Over Tracked Period
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