Set 42129

4x4 Mercedes-Benz Zetros Trial Truck

Name: LEGO 42129 4x4 Mercedes-Benz Zetros Trial Truck
SKU: 42129

Technic · 2021 · 2,131 pieces

Retired Jan 2024

Retail price$329.99What LEGO charged

Worth now$236.69Based on 4 recent sealed sales

Asking now$315.00Typical price on 35 eBay listings

vs retail−28%Worth less than shop price

Below retail

Trading 28% under its $330 retail price even after retiring — the market has had its say.

See listings on eBay

How much is LEGO 42129 4x4 Mercedes-Benz Zetros Trial Truck worth?

LEGO 42129 4x4 Mercedes-Benz Zetros Trial Truck is worth about $236.69 sealed right now, based on 4 recent sealed sales. That's 28% below its $329.99 retail price. It came out in 2021 with 2,131 pieces. It was retired in Jan 2024. Over the last 83 days its typical asking price has fallen 1%, from $319.00 to $315.00. We last checked it 7 days ago.

Price history

Value history

Oct 19$31535 listings

Lowest: $309
Highest: $325
Change: -1%
Asking vs retail: -5%

26 observations · median asking · rechecked 8× daily

Should you buy it?

Sellers want $315, but it’s actually been going for $237. Offer low.

If you bought it to resell

Sells sealed for$237

Marketplace fees · 15.25%−$36

Payment processing · 2.9% + $0.30−$8

Shipping · est. from 2,131 pieces−$26

Reaches you$167

Pay no more than$128

For a 30% return at your costs. Change them and every figure on the site follows.

What it actually sold for

Sealed

$237

4 sold in six months · $229–$250

Used

$140

2 sold in six months

Sellers are asking 33% more than buyers actually paid. The $315 figure above is a ceiling; this is the floor to negotiate toward.

Completed BrickLink transactions over the last six months. Real sales, not asking prices.

Worth more in pieces?

Parted out$299vsSealed$237

Parting it out is worth about 26% more than selling it sealed — that gap is why this set gets broken.

Minifigures: —
Loose parts: 2,720 pieces

Minifigure prices are real completed BrickLink sales. The parts figure is an estimate — the set’s own inventory at the catalogue average, not each piece priced individually. Treat it as a guide, and remember parting out is hours of work and many small sales.

Set details

Set number: 42129
Theme: Technic
Released: 2021
Status: Retired Jan 2024
Pieces: 2,131
Minifigures: —
Retail price: $329.99
Value per piece: $0.148
Price confidence: high · 35 listings
Last checked: 7 days ago

Where these numbers come from

check it yourself

eBay35 live listingsThe asking price here — the median of what sellers want right now, $315. Last checked Oct 19.See the listings →BrickLink4 completed salesWhat it actually sold for — $237 across six months of real transactions. Last checked Oct 25.Open the price guide →Catalogue2,131 piecesPiece counts, minifigures, release year and retail price come from Rebrickable and Brickset. Retail was $330.See the catalogue entry →

eBay links are affiliate links — if you buy after clicking, we earn a small commission at no cost to you, and that is what pays for the site. BrickLink has no such programme, so those are plain links. Neither changes what we show or what we say about it.

How to read this. The value is the median of live sealed listings, after removing instructions, empty boxes, used sets, multi-set lots and implausible outliers. Real sale prices usually land below asking, so the buy-below figure is deliberately the conservative end of the range.