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Hull Gauge
Recomputed 5 Nov 2026, 03:30 UTC

One year of the Sea Ray 340 Express Cruiser run, 1984–1989

1988
Sea Ray 340 Express Cruiser value

A 1988 Sea Ray 340 Express Cruiser is worth about £17,500€20,000$22,500 in today's asking prices, most likely between £14,500€17,000$18,500 and £25,500€30,000$32,000. Based on 24 comparable boats built between 1985 and 1989, 10 of them in 1988.

Gauge Estimate · 1988
Indicative · 24 comparable boats
£17,500€20,000$22,500

Likely range £14,500€17,000$18,500 – £25,500€30,000$32,000

10 boats built 1988 · 24 built 1985–1989 · listed since Aug 2020, in today's prices · any hours (typical 898 h) · every market alike · asking, not sold

in pounds

VAT is not measured for this model yet (0 of 24 boats state it paid, 0 not paid), so it does not move the estimate.

Enter the asking price from a listing to see where it sits against the 1988 boats and the likely range.

likely rangeestimateyour price, off the scale£, today's priceslog scale
01

The 1988 boats

Every Sea Ray 340 Express Cruiser built in 1988 that we have observed since Sep 2020, cheapest first in today's prices. Derived facts only: no seller, no listing, month not day.

asked $13,900 ≈ £11,500lying in the US · 1,490 h · seen Jul 2022, below the likely range
asked $19,900 ≈ £15,500lying in the US · 1,033 h · seen Sep 2020, below the likely range
asked $22,000 ≈ £18,000 cut 15% · listed 36 monthslisted in the US market · seen Oct 2023, inside the likely range
asked $22,500 ≈ £19,000lying in the US · 977 h · seen Jul 2022, inside the likely range
asked $22,000 ≈ £16,500 listed 51 monthslying in the US · seen Sep 2026, inside the likely range
asked $26,000 ≈ £21,500 cut 5.5% · listed 4 weekslying in the US · 850 h · seen Jul 2022, inside the likely range
asked CAD 39,500 ≈ £24,000lying in Canada · 1,431 h · seen Jan 2023, inside the likely range
asked $35,000 ≈ £25,500 listed 17 monthslying in the US · 1,100 h · seen Oct 2021, inside the likely range
asked $32,900 ≈ £28,000lying in the US · 738 h · seen Sep 2022, inside the likely range
asked $35,000 ≈ £27,500 listed 50 monthslisted in the US market · seen Sep 2020, inside the likely range

8 of 10 sit inside the likely range (hollow diamonds). Each boat is placed at its ask in today's prices and labelled with the price as asked and the month we saw it; a cut shows its size, and how long we have seen the boat listed so far. How we measure.

02

Either side of 1988

The rest of the run on the same scale, in today's asking prices. The bar is each year's middle half (from ten boats), the tick its median (from five). Years with a page of their own are linked.

1984–1987—8 boats · fewer than five a year
1988£17,50010 boats
1989£27,0007 boats

We don't carry this boat forward yet: the Sea Ray 340 Express Cruiser has no published depreciation curve. A curve needs 20 boats across 6 build years; we have 25 boats across 5 build years.

04

Specification

What the listings say about the Sea Ray 340 Express Cruiser: each figure is the median, or the most common value, of the boats that state it, unless a source is cited.

Length overall
10.36 mfrom listings: median of 23
Beam
3.63 mfrom listings: median of 19
Draft
0.74 mfrom listings: median of 13
Engines
Twinfrom listings: 13 of 14
Engine power
340 hp eachfrom listings: median of 7
Fuel
Petrolfrom listings: 22 of 22
Build years seen
1984–1989from listings: 25 boats
05

Questions about the 1988 Sea Ray 340 Express Cruiser

How much is a 1988 Sea Ray 340 Express Cruiser worth?

A 1988 Sea Ray 340 Express Cruiser is worth about £17,500 in today's asking prices, most likely between £14,500 and £25,500. Based on 24 comparable boats built between 1985 and 1989, 10 of them in 1988.

What do 1988 Sea Ray 340 Express Cruisers ask?

The 10 boats built in 1988 that we observed asked a median of £17,500 in today's prices, the middle half between £15,500 and £22,000. Each boat is counted once, at its latest asking price; these are asking prices, not sale prices.

Are these sold prices?

No. Every figure here is built from asking prices seen on public listings. Boats usually sell for less than they ask; we do not yet measure by how much, so we never print a sold price as ours.