71707Kai's Mech Jet
- 2020released
- 226pieces
- 2minifigures
- Ninjagotheme
Typical new & sealed
£48.94
from £43.88 · 21.7p/piece
Typical used & complete
–
from £34.15 · too few listings
View on eBay →
Updated 7h ago · 8 listings found
Price history
eBay UK · median Buy It Now asking price
We started tracking this set on 18 Oct 2026. The chart fills in as we record prices each day.
8 listings
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Lego Ninjago Kai’s Mech Jet *71707* Prime Empire Please Read UK
Used · not stated
1986ejc · 100% · 11,035 feedback£15.56 incl. £2.62 postage 6.9p/piece Not enough data -
LEGO Ninjago 71707 Kai’s Mech Jet 2-in-1 RETIRED 100% COMPLETE Empire Range UK
Used · complete
⏱ 6d 15h · 0 bids catherine7125 · 100% · 185 feedback£28.60 incl. £2.94 postage 12.7p/piece Current bid -
LEGO NINJAGO 71707 Kai's Mech Jet 2-in-1 Complete Set with Box 100% Complete UK
Used · complete
📦 Box daconn-55 · 100% · 158 feedback£34.15 incl. £2.26 postage 15.1p/piece Not enough data -
LEGO Ninago Kai's Mech Jet 71707 - complete set now discontinued UK
Used · complete
west35414 · 100% · 104 feedback£34.16 incl. £2.26 postage 15.1p/piece Not enough data -
Lego 71707 - Kai's Mech Jet UK
New & sealed
📦 Box 📘 Instructions ballylucus · 99.5% · 3,496 feedback£43.88 incl. £2.62 postage 19.4p/piece 10% below typical -
Lego 71707 Ninjago Kai's Mech Jet UK
New & sealed
📦 Box 📘 Instructions ★ Top Rated toyfigsoutlet · 99.9% · 13,071 feedback£46.99 free postage 20.8p/piece About typical -
LEGO NINJAGO: Kai's Mech Jet (71707) UK
New & sealed
📦 Box 📘 Instructions y123kev · 100% · 705 feedback£50.88 incl. £3.38 postage 22.5p/piece About typical -
Lego Ninjago 71707 - Kai's Mech Jet - Brand New Sealed Retired Set UK
New & sealed
📦 Box 📘 Instructions imzgtm_8 · 100% · 311 feedback£53.39 incl. £3.38 postage 23.6p/piece 9% above typical
Only seeing UK listings. Compare all 5 countries →
Before you buy 71707
- Check all 2 minifigures are included. Minifigures are the first thing sold off from used sets, and often the most valuable part.
- “Complete” should mean all 226 pieces. Ask the seller whether they checked against the inventory or just think it's complete.
- Sealed means factory seals intact. Ask for photos of the seals and box corners; box condition moves the price a lot on retired sets.
- Check the seller's feedback. For a retired set, stick to sellers with 98%+ feedback and a history of selling LEGO.
- Watch out for knock-offs. Brands like Lepin and Mould King copy popular sets. Look for the LEGO logo on the box and bricks.
- Pay through eBay. eBay's Money Back Guarantee covers items that don't match the description, but only if you pay through eBay.
Questions
How much is LEGO 71707 Kai's Mech Jet worth?
Based on current eBay UK Buy It Now listings, a new sealed set typically costs £48.94, including postage. These are asking prices, so a set can sell for less.
How many pieces are in LEGO 71707?
Kai's Mech Jet has 226 pieces and 2 minifigures. It was released in 2020.
What is the price per piece of 71707?
At the typical sealed price of £48.94 it works out at 21.7p per piece.
