Sea Ray Sundancer Buying Guide: 240 vs 260 vs 280 vs 320

You have decided you want a Sundancer. That part was easy — it is the most common cruiser on the American used market, and every marina has three of them. The hard part is that Sea Ray built the same boat in four sizes that look nearly identical in listing photos, and the difference between a 260 and a 280 is not two feet. It is a second engine, a generator, a slip you cannot escape, and roughly triple the annual bill.

The short answer

Buy by beam, not by length. The 240 and 260 are 8 ft 6 in wide, which is exactly the federal highway width limit — you can tow them home. The 280 (9 ft 5 in) and 320 (11 ft 5 in) are oversize loads that live in a slip forever.

Right now, across 271 active US Sundancer listings in our database, the medians are:

Model	Listings (n)	25th pct	Median ask	75th pct	Full range
240 Sundancer	15	$15,500	$25,000	$30,000	$11,500–$35,900
260 Sundancer	37	$19,900	$26,995	$39,900	$6,000–$79,500
280 Sundancer	14	$19,995	$35,000	$65,900	$4,000–$78,000
320 Sundancer	18	see below	bimodal	—	$44,999–$489,900

Those are asking prices on active listings, not sold prices — read them as the top of the negotiating range, not the market. The 320 is deliberately blank because it is two entirely different boats sharing one badge, which we untangle further down.

Reading the model numbers correctly

Two pieces of Sea Ray nomenclature will save you confusion:

“DA” means Sundancer. On hull identification numbers, recall notices and factory paperwork, a 260 Sundancer is a “260 DA.” A 280 is a “280 DA.” If you are searching a recall database or a title record, search the DA designation — you will find records the model name misses.

The length in the name is not the length of the boat. Sea Ray measured overall length including the standard extended swim platform. A “280 Sundancer” is 31 ft 1 in overall. A “320” is 35 ft 6 in. This matters because marinas bill by overall length, and your slip quote will be written against the real number, not the badge.

Here are the factory figures from Sea Ray’s own 2003 spec sheets, which is the most directly comparable model year across all four:

Spec	240	260	280	320
LOA w/ platform	26’0”	28’0”	31’1”	35’6”
Beam	8’6”	8’6”	9’5”	11’5”
Dry weight	5,550 lb	6,200 lb	8,500 lb	13,800 lb
Fuel capacity	69 gal	84 gal	100 gal	200 gal
Water capacity	20 gal	28 gal	28 gal	40 gal
Deadrise	19°	19°	21°	21°
Typical power	Single sterndrive	Single sterndrive	Single or twin	Twin

Look at the fuel column. The 320 carries almost three times the fuel of a 260 — because it needs it. That single row tells you more about the cost difference than any brochure will.

The 8’6” line is the real decision

Federal rules cap vehicle width at 102 inches — 8 ft 6 in — on the National Network of highways, under 23 CFR 658.15. (Hawaii is the lone exception at 108 inches.) Anything wider is an oversize load requiring a state permit, and in practice that ends casual trailering.

So:

• 240 and 260 — legally trailerable behind an adequately rated truck. You can store on the hard at home, chase good weather, haul to a different lake, and skip the slip fee entirely. At 5,550 to 6,200 lb dry plus trailer, fuel and gear, you are realistically in three-quarter-ton truck territory.
• 280 and 320 — permanent slip, permanent haul-out bills, permanent winterization contract. Moving one is a professional job.

That is the fork in the road. Everything else about these boats is a difference of degree; this one is a difference in kind. If you are still weighing the whole category, our cabin cruiser buying guide covers the overnighting layouts, and the express cruiser buying guide covers the larger sedan-style boats the 320 competes with.

Where these boats actually are

One surprise in our data: Sundancers are not a Florida boat. Of the 271 active listings, the concentration is northern and seasonal — New York (42), Washington (25), Michigan (25), Florida (22), California (20), New Jersey (13), Massachusetts (12), Ohio (11).

Two consequences. Most of the supply is freshwater and cold-stored, which is genuinely better for hulls, drives and exhaust than year-round saltwater. And a short selling season means real inventory pressure in September and October, when owners face another storage bill.

The fleet is also old. Of the 220 listings with a stated model year, the median year is 2001, and 64% are pre-2005. You are almost certainly shopping a 20-plus-year-old boat, so condition and maintenance history outrank model choice.

The 320 is two different boats

This trips up buyers constantly. Our 18 active 320 listings split cleanly into two populations with nothing in between:

• The classic 320 Sundancer (roughly 1994–2008, twin gas sterndrives, 35’6” overall, 200 gal fuel). Seven active listings, spanning $44,999 to $89,500. Seven is too small a sample for us to publish a median, so treat that as a band, not a number.
• The modern Sundancer 320 (2019 onward, a completely new hull — 32’9” LOA, 10’7” beam, 13,305 lb dry, 170 gal fuel). Eleven active listings, median ask $374,900, range $160,000 to $489,900.

The modern boat comes as a sterndrive (twin MerCruiser 6.2L, 300 or 350 hp, on Bravo Three drives) or an outboard (twin Mercury 5.7L V10 350 hp, or triple 4.6L V8 250 hp Verado). It is also a different concept — an open bowrider deck over a small cabin, not the enclosed weekender the old 320 was.

For a realistic read on what a 30-to-33-foot sterndrive Sundancer costs today, the better comparison is the whole band. Across 41 active listings of 300, 310, 320 and 330 Sundancers from model year 2010 and earlier, the quartiles are $26,500 / $44,999 / $68,800. That is your honest number for a classic big Sundancer.

Failure points, by model

Every one of these boats is a gas sterndrive cruiser with a cored deck, so they share a core failure set — but the emphasis shifts with size.

All four — the sterndrive tax. Bellows, gimbal bearing and U-joints are a recurring service item, not a one-time repair. Budget $900 to $1,500 per drive for a bellows job (see MerCruiser bellows replacement), and $1,500 to $3,000 for a full outdrive service. On a twin-engine 280 or 320, double it. Sterndrive problems walks the whole failure chain.

All four — exhaust manifolds and risers. Raw-water-cooled gas engines corrode from the inside on a 5-to-8-year clock regardless of hours. Replacement is $1,200 to $3,500 per engine. This is the single most commonly deferred item on a used Sundancer, and a seller who cannot produce a receipt has almost certainly not done it.

240 and 260 — soft foredecks. Surveyors flag the balsa-cored foredeck around windlass, pulpit and cleat fasteners on the 260 and 280 specifically. Bedding fails, water tracks down the fastener, the core turns to oatmeal. Walk the foredeck barefoot and press near every through-bolt.

280 and 320 — radar arch bases. Arch bases develop stress cracks that leak into the headliner; look for brown tea-staining on the liner beneath. And twin engines mean every engine number above is charged twice.

320 — fuel tank access. The aluminum tank sits foamed into the bilge, and foam holds moisture against the metal, which pits it. On the bigger Sundancers, replacement can require pulling an engine. Sniff for fuel, look for staining at tank seams, and check that the sender reads sanely.

Anything pre-2005 — transom and stringers. Stringers tie into the bulkhead, so bulkhead moisture migrates outward through the whole grid. Transom rot signs covers what to look for before you pay a surveyor.

On engines, treat the hour meter as a claim to verify. Gas sterndrives typically need major work at 1,000 to 1,500 hours — much earlier than an outboard — and our engine hours guide explains why a 200-hour 2002 boat is often a worse buy than a 700-hour one.

Check the recall record before you buy

The US Coast Guard recall database lists 34 Sea Ray campaigns. Several touch these models, and three are still shown as open:

Recall	Models	Issue	Units	Opened
180012S	260 DA	Fuel system	243	7/27/2018 — open
190038T	DA320, DA350 (MY2019)	Electrical system	27	6/26/2019 — open
190039T	DA320, DA350 (MY2019)	Steering	18	6/28/2019 — open
010092S	240 DA / 240 SD (MY2001)	Fuel hose leak	466	5/22/2001 — closed
950233T	240 SD / 240 DA	Fuel fill fitting cracks	240	11/1/1995 — closed
960045T	240 & 250 Sundancer	CO — bulkhead not sealed	911	5/2/1996 — closed

Notice the pattern: fuel systems and carbon monoxide. That 1996 campaign covered 911 boats whose cabin bulkhead was not tight enough to keep exhaust out of the accommodation space. On any gas cruiser with a swim platform, CO is not theoretical — CDC and NIOSH work has documented concentrations at the stern of a running boat far above the level that can be fatal. Confirm the cabin CO monitor is present, powered and in date. If it is missing, that is a $50 fix and a serious one.

Run the hull identification number before you commit. Our HIN lookup guide shows how to decode it and check it against recall and title records.

Which one to buy

• Buy the 260 if this is your first cruiser. It is the deepest market (37 active listings), it trailers legally, and a 1995–2004 example has a median ask of $23,995 across 21 listings. It has a V-berth, an enclosed head and a galley — a real weekender on a single engine.
• Buy the 240 only if budget or tow vehicle is the binding constraint. Its median of $25,000 across 15 listings barely undercuts the 260, and you lose cabin volume for the privilege.
• Buy the 280 if you have already committed to a slip and want two engines for docking confidence and redundancy. Median $35,000 across 14 listings, but the spread — $19,995 at the 25th percentile to $65,900 at the 75th — is the widest in the family, which means condition is doing all the work in the price. Survey hard.
• Buy a classic 320 only with eyes open. Twin engines, 200 gallons of fuel, generator, air conditioning — the $45k–$90k purchase price is the small number. Above $160,000, the modern Sundancer 320 is a different boat in a different market, with warranty and dealer support.

One reassurance on all of them: in June 2018 Brunswick ended its process to sell Sea Ray and chose to keep the brand, discontinuing only the sport yacht and yacht models. Sport boats and cruisers continued, so parts and dealer support for the Sundancer line are intact.

What to do next

1. Fix your beam first. Decide trailer or slip. That eliminates half the family in one step and stops you shopping across incompatible cost structures.
2. Price the slip before the boat. Call your target marina, quote the real LOA — 31’1” for a 280, 35’6” for a classic 320 — and get an annual number. On a 20-year-old cruiser, the slip often exceeds the purchase price over five years.
3. Demand manifold and riser receipts. No paperwork means assume it is due. Put $1,200–$3,500 per engine into your offer math immediately.
4. Run the HIN against the recall list, especially any 260 DA — that 2018 fuel system campaign is still open.
5. Walk the foredeck and press every fastener, then have a surveyor moisture-meter what you found.
6. Survey it. At $18 to $30 per foot, a 28-footer runs roughly $500 to $800, plus haul-out and a separate engine survey. See boat survey cost. On a cored, twin-engine, 20-year-old cruiser this is not optional spending.
7. Shop in the fall. Most of this fleet sits in New York, Washington and Michigan, where the next storage bill lands in October and motivates sellers.

Not sure where a specific listing falls against the numbers above? Paste the listing and get an instant verdict — a Buy Score, the model-specific red flags, and fair-price context before you call the seller.