Sea Ray 400 SLX
The Sea Ray 400 SLX is a 40-foot boat, with model years from 2018 to 2026 in the listings we track. Across 28 listings we have observed (model years 2018–2026), the median asking price is $484,500, with most boats asking $429,000 to $500,000. The engine we see most often on this model is MerCruiser sterndrive (gas, 4.5L–6.2L).
BoatVerdict market snapshot
These are asking prices. No free or public source publishes US used-boat transaction prices, so nobody — us included — can honestly show you what these boats sold for. What we can show you is what 28 sellers are asking, which is the number you are actually negotiating against.
22 priced listings across 7 states. Enough for a range, not enough to be precise about any single year.
Method: Asking prices from active listings, de-duplicated so a re-posted boat counts once (28 raw listings collapsed to 28 distinct boats). Quartiles, not averages, so one outlier cannot move the band. Rounded to $500.
Coverage: Model years 2018–2026, 7 states, 7 metro areas. New-boat listings excluded.
Sources: BoatVerdict market observations (rightboat + marinemax + boatcrazy) · US state vessel registries (21,168 registered Sea Ray hulls)
Looking at a Sea Ray 400 SLX for sale?
Paste the listing and we will score that specific boat against everything on this page: asking price versus our observed range, engine and hours risk, the known issues for its model year, and a negotiation position. The verdict is free.
Get the free verdict →No account needed. The paid Deal Report is optional and comes after.
The BoatVerdict take
- BoatVerdict listing data
Pricing is tight: the middle half of listings sits between $429,000 and $500,000, only a 1.2x spread. A boat asking well outside that band needs a reason, and "it is loaded" is usually not enough of one.
- BoatVerdict listing data
Supply is concentrated: our 28 listings came from only 7 states, led by GA. Expect a smaller buyer pool at resale, and budget for transport if the right boat is not local.
- Recall (USCG/CPSC)
35 federal recall campaigns on file touch this builder. Check the specific hull against the recall list below before you put money down; remedies are free but only if the work was actually done.
Each point is tagged with the evidence behind it. Nothing here is a claim we cannot trace back to a counted listing, a federal record, or a named analyst judgement.
Sea Ray 400 SLX prices by model year
Show the numbers by model year
| Model year | Boats | Middle half of asks | Median ask |
|---|---|---|---|
| 2024 | 1 | too few to show | - |
| 2023 | 1 | too few to show | - |
| 2022 | 2 | too few to show | - |
| 2020 | 1 | too few to show | - |
| 2019 | 2 | too few to show | - |
| 2018 | 1 | too few to show | - |
8 distinct boats, listed now or since taken down, re-posts counted once. Years with fewer than 3 boats show a count only. Asking prices, not sale prices.
What a used Sea Ray 400 SLX is worth
We have seen 8 distinct Sea Ray 400 SLX boats for sale between Nov 13, 2026 and Nov 14, 2026, model years 2018 to 2024, in 6 states. The median ask is $467,000 and half of all asks sit between $433,500 and $506,000.
Engine brands named: Mercury 1. Median engine hours on the 6 boats that stated them: 199.
Recent Sea Ray 400 SLX asking prices
| Year | Model | Length | HP | Hours | State | Asking | Seen | Status |
|---|---|---|---|---|---|---|---|---|
| 2019 | 400 SLX | 40 ft | - | 405 | MS | $429,000 | Nov 14, 2026 | listed BoatCrazy |
| 2023 | 400 SLX | - | - | 70 | MA | $499,900 | Nov 13, 2026 to Nov 14, 2026 | listed (2 posts) MarineMax |
| 2024 | 400 SLX | - | - | 36 | TX | $720,000 | Nov 13, 2026 to Nov 14, 2026 | listed MarineMax |
| 2022 | 400 SLX | - | - | 400 | MO | $524,900 | Nov 13, 2026 to Nov 14, 2026 | listed MarineMax |
| 2018 | 400 SLX | - | - | - | MA | $435,000 | Nov 13, 2026 to Nov 14, 2026 | listed MarineMax |
| 2022 | 400 SLX | - | - | - | NY | $484,260 | Nov 13, 2026 to Nov 14, 2026 | listed MarineMax |
| 2019 | 400 SLX | 40 ft | - | 328 | GA | $399,000 | Nov 13, 2026 to Nov 14, 2026 | listed MarineMax |
| 2020 | 400 SLX | - | - | 69 | GA | $449,900 | Nov 13, 2026 to Nov 14, 2026 | listed MarineMax |
The 8 most recently seen of 8 distinct boats. These are asking prices, not sale prices: no free source publishes US used-boat sale prices. A boat re-posted several times counts once, at its latest ask. "Taken down" means the ad disappeared; that can be a sale, a seller who gave up, or an expired post.
Sea Ray recalls and accident record
Of 4,338Sea Ray boats in USCG accident records: fire or explosion 6%, flooding or swamping 6%, capsizing 1%, total loss 6%, at least one death 4%. The rate counts accidents in Texas and New York waters from 2014 to 2023 (174) against 21,153 Sea Ray boats registered in those two states, the only states that publish boat-level registrations. Accident records reflect how and how much boats are used, not only how they are built. Only accidents above the USCG reporting threshold are recorded. Personal watercraft are left out.
These numbers are for the builder, not this model. Check the specific hull with a HIN lookup for recalls and reported accidents.
Recalls affecting Sea Ray
35 federal recall campaigns on file. Recalls are issued against hull-identification ranges, so a campaign listed here may or may not cover the specific boat you are looking at — check the HIN. Remedies are free from the builder, but only if the work was actually performed, and there is no central database that proves it was.
- ⚠ Recall
150018S9/9/2015VENTILATION
- ⚠ Recall
940233T9/2/1994NON IGN PROTECTED DEVICE
- ⚠ Recall
940234T9/2/1994NON IGN PROTECTED DEVICE
- ⚠ Recall
920416T8/27/1992FUEL LEAKAGE
- ⚠ Recall
970080T7/7/1997FUEL LINE ABRASION - LEAK
- ⚠ Recall
010089S7/30/2001OVERCURRENT PROTECTION; ELECTRICAL SYSTEM
- ⚠ Recall
180012S7/27/2018FUEL SYSTEM
- ⚠ Recall
24MF02396/7/2024 - ⚠ Recall
160005S6/6/2016 - ⚠ Recall
190039T6/28/2019STEERING
- ⚠ Recall
190038T6/26/2019ELECTRICAL SYSTEM
- ⚠ Recall
040070S6/17/2004labEL; BLOWER WARNING
Method: Matched to the builder by normalized company name and MIC. A campaign is shown when it touches this builder; the model and year columns say how narrowly it applies.
Sources: US Coast Guard recall database · CPSC recalls
Engines we actually see on the 400 SLX
- MerCruiser sterndrive (gas, 4.5L–6.2L)
The most common inboard/outboard in US bowriders and cruisers. The engine itself (GM-based) is reliable; the maintenance burden is the drive and exhaust. Bellows, gimbal bearing, U-joints, and — in any saltwater service — exhaust manifolds and risers are the recurring costs.
Service reality: Bellows/gimbal every ~5 years; manifolds/risers every ~6–8 years (or 3–4 in salt) at $2.5–4K. Pull the drive on inspection — deferred drive service is the classic hidden cost.
Full MerCruiser sterndrive (gas, 4.5L–6.2L) reliability profile →
Method: Engine family matched from the listing's engine fields and title text against BoatVerdict's engine-family profiles. Prevalence is share of our sample, not factory fitment rates.
Sources: BoatVerdict market observations · BoatVerdict engine-family profiles
Sea Ray 400 SLX specifications
| Length (median listed) | 40.0 ft | Our listing data |
|---|---|---|
| Model years traded | 2018–2026 | Our listing data |
| Sea Ray hulls in US registries | 21,168 | TX + NY open data |
Rows marked "our listing data" are measured from listings, not published by the builder, and will differ from a brochure. Rows without a source we can name are not shown at all.
What to inspect on a used Sea Ray 400 SLX
- MerCruiser sterndrive (gas, 4.5L–6.2L): Bellows/gimbal every ~5 years; manifolds/risers every ~6–8 years (or 3–4 in salt) at $2.5–4K. Pull the drive on inspection — deferred drive service is the classic hidden cost. Seen on 1 of the 28 400 SLX listings we track.
- Get the hour meter reading and divide by the boat's age. Above 100 hours a year is heavy use for a MerCruiser sterndrive (gas, 4.5L–6.2L). Threshold from BoatVerdict's engine-family profile for MerCruiser sterndrive (gas, 4.5L–6.2L).
- Assume saltwater service unless the seller can prove otherwise: pull the engine cowling and look at the powerhead, check trim-cylinder rams for pitting, and open the battery and fuse boxes for green corrosion. 89% of the listings we observed for this model are in coastal states.
This list is specific to this model: analyst items for the hull, plus items driven by the engines and the regions we actually observe on 400 SLX listings. It is not a generic pre-purchase checklist, and it does not replace a surveyor.
What a 400 SLX costs to own
$14k – $46k per year
- 40 ft hull, the median observed length for this model
- Saltwater berth, based on where most listings we see are located (GA)
- Includes insurance, storage, routine service, fuel at moderate seasonal use, and a reserve for wear items
- Excludes loan payments, major engine replacement, and refit work
This is a modelled band, not observed spend. Real cost swings hard on where you keep the boat and how much you use it.
Method: The same ownership-cost model BoatVerdict's paid Deal Report uses: boat class and length set the base band, then saltwater berth and size adjust it.
Sources: BoatVerdict ownership-cost model
Where 400 SLXs are for sale
- GA 2
- MA 2
- NY 1
- FL 1
- TX 1
- MO 1
- MS 1
Counts of distinct boats we observed per state, from 28 listings in 7 metro areas. We publish the distribution, not the listings themselves.
What else buyers cross-shop
- Sea Ray 400 Sedan Bridge
- Sea Ray 40 Sundancer
- Sea Ray 390 Express Cruiser
- Sea Ray 380 Sundancer
- Sea Ray 370 Sundancer
- Sea Ray 370 Sundancer OB
Chosen by measured similarity — same builder first, then comparable length — and limited to models whose own page meets our evidence bar. No paid placements, no filler links.
Sea Ray 400 SLX FAQ
How much does a used Sea Ray 400 SLX cost?
Which model year of the Sea Ray 400 SLX is the best value?
Are there recalls on the Sea Ray 400 SLX?
What engine does the Sea Ray 400 SLX come with?
What does it cost to own a Sea Ray 400 SLX per year?
Looking at a Sea Ray 400 SLX for sale?
Paste the listing and we will score that specific boat against everything on this page: asking price versus our observed range, engine and hours risk, the known issues for its model year, and a negotiation position. The verdict is free.
Get the free verdict →No account needed. The paid Deal Report is optional and comes after.