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Hull Gauge
Sheet 0260 · recomputed 5 Nov 2026, 03:30 UTC

13.8 m motor yacht by Bayliner · built 1986–1993 (boats seen)

Bayliner
4588 used price guide

Gauge Value
Firm · 25+ boats
£83,000€96,000$110,500

Middle half £68,500€79,000$87,000 – £92,000€107,000$119,000

median asking price of 32 boats listed since Aug 2020, in today's prices · asking, not sold

Watch

13.82 mbeam 4.55 mdraft 0.91 mfull specification

A used Bayliner 4588 asks a median of £83,000€96,000$110,500 across 32 boats listed since Aug 2020, in today's prices. Half sit between £68,500€79,000$87,000 and £92,000€107,000$119,000, and each year of age takes about 4.4% off.

01

The field

Each number is one boat: its asking price in thousands of pounds, at today's market level, set above the year it was built. The orange line is the model's middle price for its age; the shaded band holds the middle half. Tap a number to see the boat behind it. The price scale is logarithmic: each step up is the same percentage.

31 boats by year built · asking prices in £ thousands, in today's prices · listed since Aug 2020 · asking, not sold · log scale · middle line fitted on 31 boats
31 boats · fill in Your boat below to place yours on the field. 1 boat without a build year is not drawn.
02

Your boat

Estimated from the boats above. No email, no broker call.

Listed in
optional, in pounds
Gauge Estimate · Firm
£81,500€95,000$106,500

Likely range £69,000€80,500$89,500 – £91,500€105,500$117,000

29 comparable boats built 1986–1992 · hours not given · all markets · asking, not sold

Add your asking price to see where it sits among boats like yours.

The 1989 page: every 1989 boat and its estimate
03

By year built

Median from five boats; middle half from ten. Below that we print nothing rather than a guess. Linked years have their own page with that year's boats. The spread is drawn on the field's logarithmic scale, in pounds.

YearBoatsMedianMiddle halfSpread
19932—too few boats
19925£97,000€113,500$126,500too few boats
19916£91,500€105,500$110,000too few boats
19903—too few boats
19896£69,000€80,000$88,000too few boats
19884—too few boats
19872—too few boats
19863—too few boats

Across boats built 1986 to 1993, each year of age takes about 4.4% off the asking price.

04

What moves the price

Each factor compares boats of the same age, so a newer boat's premium isn't counted twice. Five boats or more on each side, or we say so.

Age

Each year of age takes about 4.4% off the asking price. This is the biggest single factor.

−4.4%per year of age · fitted on 31 boats
Engine hours

Boats with fewer hours than usual for their age ask about 1.8% more than those with more.

+1.8%Lower hours for age 11 boats · against higher hours 9

Asking prices, not sold. Factors can overlap, so treat these as a guide to what the market asks, not a formula.

05

Time to sell

107days

listed so far: the median of 14 boats seen on two or more dates

29%

have cut their asking price: 4 of 14 boats seen at least 14 days apart

—

median size of a cut · withheld: fewer than five cuts to measure

These are asking prices, and asking is not selling. Days listed so far is not time to sell: a boat still listed has not sold, and we do not yet record when a listing ends. We have not measured how far sale prices land below asking; the methodology says what we can and cannot measure.

06

Cost to keep

A year on a South Coast marina berth, insured at the Gauge Value, in pounds. An estimate from published rates, not a quote.

Depreciation£3,7004.4% a year of age on the fitted curve, at the Gauge Value
Berthing£6,900annual band for the region, Lake Yard marina berth, 12-15 m; Marina berth, South Coast · Lake Yard price list 2026 · BerthFinder
Maintenance and repairs£6,2505% to 10% of a value of £83,000 a year (maintenance, older boats) · Boatsetter
Lift-out and antifoul£65013.8 m at the cited rate per metre (Lake Yard: lift, hold, pressure wash, relaunch, plus antifoul labour) · Lake Yard price list 2026
Insurance£8500.5% to 1.5% of a value of £83,000 a year · Velos Insurance; Admiral Yacht Insurance
Engine servicing—not estimated: labour rates are cited, but no source publishes the hours a service takes
A year of ownership£18,350 £1,530 a month

Fuel is not included: no cited source gives the engine hours a typical owner runs in a year.

08

Questions about the Bayliner 4588

How much is a used Bayliner 4588 worth?

The median asking price is £83,000, from 32 boats listed since Aug 2020, in today's prices; half sit between £68,500 and £92,000. Each year of age takes about 4.4% off. For a specific boat, use Your boat above.

How long does a Bayliner 4588 stay on the market?

We do not measure time to sell yet. Across 14 boats seen on two or more dates, the median time between first and last sighting is 107 days so far. 29% of 14 boats seen at least 14 days apart have cut their asking price.

How fast does a Bayliner 4588 lose value?

About 4.4% of its asking price for each year of age, fitted on 31 boats built 1986 to 1993. On a boat at the median that is about £3,700 a year.

Are these sold prices?

No. They are asking prices observed on public listings, restated at today's market level. We have not yet measured how far sale prices land below asking, so we do not publish a figure for it.

09

About the Bayliner 4588

The boats behind this page were built between 1986 and 1993 and have been listed since Aug 2020, most often in the US market. 29% of the boats seen at least 14 days apart have cut their asking price.

How we measure: we read public listings from brokers and marketplaces, count a boat once when it appears on several sites, store its asking price each time it changes, and restate older asking prices at today's market level. We never republish a listing, a photograph or a seller. Every figure is recomputed nightly and dated; below five boats we publish nothing. The 32 boats here were listed in the US. Full methodology

Length overall
13.82 mfrom listings · 30 boats
Beam
4.55 mfrom listings · 29 boats
Draft
0.91 mfrom listings · 15 boats
Built
1986–1993from listings · 31 boats
Type
Motor yachtour classification