American Water Sports is pleased to offer this pre-owned 2019 Bennington 25 QSBA I/O — a genuinely interesting pre-owned pontoon listing and one of the more distinctive Bennington Q-Series builds in our inventory. Available at our Shell Knob location on Table Rock Lake (Stock #U-SK-G5856, Hull #ETWG5856J819), this 25-foot Bennington sits in the premium Q-Series tier of the brand's pontoon lineup — Bennington's flagship pontoon family — and is configured with the genuinely unusual I/O sterndrive powertrain (a MerCruiser 6.2L 300hp sterndrive) rather than the more-common outboard configuration that defines the segment. The I/O sterndrive setup is the most-distinctive angle on this listing: instead of an outboard hanging off the transom, the engine sits inside the boat with a Bravo-class sterndrive outdrive — delivering a cleaner aft deck, a fully-usable rear swim platform unobstructed by an outboard, meaningfully quieter cruising at the helm, and the kind of refined cruising character that buyers cross-shopping I/O pontoons specifically come looking for. For the premium-pontoon family who wants the Bennington Q-Series build quality, the modern recent-vintage 2019 build year, the larger 25-foot platform footprint, and the distinctive I/O sterndrive configuration that differentiates this boat from the outboard-pontoon mainstream, this 25 QSBA I/O is one of the more compelling pre-owned premium pontoons at our Shell Knob location this season.
Bennington has been the segment-defining premium-tier pontoon manufacturer since the mid-1990s — built in Elkhart, Indiana, Bennington's pontoon lineup spans from the value-tier S-Series and SX-Series, through the premium-tier R-Series and L-Series, all the way up to the flagship-tier Q-Series. The Q-Series is Bennington's premium pontoon family — characterized by premium furniture, premium deck-covering options, more-developed wave-shaped tube architectures, premium audio, and the kind of fully-equipped feature content that the premium-pontoon segment expects. The 25 QSBA naming specifically: Q for Q-Series, 25 for 25-foot length, SBA for Stern Bench Aft (Bennington's stern-facing aft lounge layout that delivers a wraparound rear seating arrangement and dedicated rear-facing observer seating). The I/O suffix is the genuinely distinctive piece — a meaningfully smaller subset of Bennington Q-Series production was configured with sterndrive (inboard/outboard) powertrains rather than the dominant outboard configuration. By the 2019 model year, the QSBA I/O platform was a well-developed premium-pontoon configuration with several years of refinement behind it. For the buyer cross-shopping premium-pontoon Q-Series builds — particularly those who want the I/O sterndrive specifically — this 2019 25 QSBA I/O represents one of the more-distinctive and harder-to-find configurations in the pre-owned premium pontoon segment.
Power on this 25 QSBA I/O comes from the MerCruiser 6.2L 300hp sterndrive — Mercury Marine's marinized 6.2-liter Big Block V8 in the standard MPI (multi-port injection) 300-horsepower trim, paired with a Mercury Bravo-class outdrive. The MerCruiser 6.2L is one of the most-supported, best-developed marine sterndrive powertrains in current production — Mercury Marine has been refining the 6.2L platform for well over a decade and parts/service availability through Mercury's authorized dealer network and the broad marine aftermarket is genuinely excellent. 300 horsepower on a 25-foot Bennington pontoon is the right power for the platform — strong enough to handle the larger pontoon's mass, get the boat up on plane briskly with a full passenger and ballast load, and deliver comfortable cruising speeds without straining at higher RPM. The sterndrive configuration produces meaningfully different cruising character than an outboard-powered pontoon: the engine weight sits inboard rather than hanging off the transom, the aft deck is cleaner (no outboard cowling intruding into deck space), and the helm experience is noticeably quieter at cruise because the engine isn't directly behind the captain. American Water Sports is fully equipped to support MerCruiser sterndrive service through our shop. For the current engine hour reading, exact MerCruiser calibration, and recent service history on this specific 25 QSBA I/O, please contact our Shell Knob team for the build specifics.
Most pontoons in the modern segment are outboard-powered — and outboard-powered pontoons are great for what they do (lighter overall weight, simpler powertrain, easier service access, more transom space for outboard upgrades). But the I/O sterndrive pontoon configuration delivers several genuinely meaningful advantages for the right buyer. First: the aft deck is fully usable. With an outboard pontoon, the outboard physically occupies the rear-center of the transom, which limits rear-deck layout options and swim-platform configuration. With the I/O sterndrive, the outdrive is below the waterline and the aft deck flows continuously across the entire transom — the rear swim platform is fully usable, the rear lounge layout has more options, and the boarding-from-the-water experience is cleaner. Second: the helm is quieter at cruise. The engine sits forward in the engine compartment rather than directly behind the captain, which meaningfully reduces engine noise at the helm position. Third: the 6.2L V8 sterndrive delivers the kind of smooth, torque-rich cruising character that V8 sterndrives are known for — different from an outboard's character, but quite pleasant for extended cruising on Table Rock Lake. The trade-off is that I/O pontoons are less common, command a slightly different segment of buyer interest, and the sterndrive outdrive requires its own maintenance routine (annual outdrive service, gimbal bearing inspection, etc.). For the pontoon family who specifically wants the I/O configuration, this Bennington 25 QSBA I/O represents one of the more capable premium-tier examples in the pre-owned market.
The Bennington Q-Series sits at the top of Bennington's pontoon lineup and the flagship tier brings meaningful equipment upgrades over the value-tier S/SX and the mid-tier R/L families. Standard Q-Series equipment from this 2019 vintage typically includes premium upholstery (with Bennington's premium stitching patterns and color combinations), premium deck covering (typically Bennington's premium vinyl-deck options at this tier), premium fence/railing configurations, premium helm electronics with marine GPS chartplotting and integrated multi-function display, premium audio system with multiple speakers and amplifier, premium navigation and accent lighting (including under-deck and color-shifting interior accent lights typical of the premium-pontoon segment), premium Bimini or hard-top sun cover, and the kind of fit-and-finish that premium-pontoon buyers cross-shop against L-Series Bentley, Premier, and Manitou Encore builds. The 25 QSBA layout specifically delivers the wide-open bow lounge with wraparound seating, a midship cockpit with the helm position, and the Stern Bench Aft configuration's rear-facing wraparound lounge that's purpose-built for sandbar parking, swimming, and rear-facing socializing on the water. For specific upholstery condition, deck-covering condition, audio system spec, and any owner-added premium accessories on this specific 25 QSBA I/O, see the build specifics section below.
The 25-foot platform length on this Bennington Q-Series is well-sized for serious family-day duty on Table Rock Lake — meaningfully larger than the entry-tier 22-foot pontoons in the segment, more passenger-capable, more storage-rich, and notably more comfortable on Table Rock's bigger water on windier days. The Stern Bench Aft layout makes the platform especially well-configured for sandbar-and-swim duty — the rear lounge wraps around the aft deck giving multiple seating positions facing the water, the integrated swim platform and boarding ladder make swimming-and-boarding effortless, and the aft deck's clean, outboard-free configuration (thanks to the I/O sterndrive) maximizes useful rear-deck space. Standard Q-Series amenities for this vintage typically include integrated cup holders and storage throughout, ski-tow capability for casual watersports duty, and the kind of premium fit-and-finish that defines flagship-tier pontoon ownership. For specific factory option content, audio system spec, helm electronics configuration, and trailer status on this specific 25 QSBA I/O, please see the build specifics section below or contact our Shell Knob team.
Because this 2019 Bennington 25 QSBA I/O is a pre-owned listing, the full original equipment list and any owner-added accessories are not reproduced in this online description. To get the complete and most accurate information about this specific pontoon — including current photos, exterior pontoon and fence color/condition, interior upholstery color/condition, current MerCruiser 6.2L engine hour reading and sterndrive service history (including outdrive service status), Bimini or hard-top configuration and condition, helm electronics and audio system spec, ski-tow and watersports equipment, navigation lights and accent lighting, fuel capacity and tank condition, deck covering condition, and trailer status — please contact our Shell Knob team directly. We're happy to walk through every detail, share additional photos and video, schedule a private showing, or arrange an on-water demo on Table Rock Lake.
American Water Sports is a Boating Industry Top 100 Dealer and a full-service marine sales, service, and brokerage operation serving Table Rock Lake and the Ozarks from two convenient locations in Kimberling City and Shell Knob, Missouri. Our pre-owned and brokered pontoon program offers premium-tier and value-tier pontoons across multiple builders and vintages — from flagship Bennington Q-Series builds like this 25 QSBA I/O, through premium Barletta builds across Cabrio/Corsa/Lusso/Reserve trims, mid-tier Manitou and Crest builds, all the way down to value-tier vintage Lowe and Sun Tracker pontoons. Our service shop is fully equipped to support MerCruiser sterndrives (along with Mercury, Yamaha, Indmar, Evinrude, and other major marine powertrain brands), and our team can walk you through honest expectations at every vintage and price point. For the premium-pontoon family who wants the Bennington Q-Series flagship pedigree, the modern recent-vintage 2019 build year, the larger 25-foot platform footprint, and the distinctive I/O sterndrive configuration that sets this boat apart from the outboard-pontoon mainstream, this 25 QSBA I/O represents one of the more compelling pre-owned premium pontoons at our Shell Knob location this season.
Ready to experience this pre-owned 2019 Bennington 25 QSBA I/O in person? Contact American Water Sports today to schedule a private showing, request additional photos or video, review the build specifics in detail, or arrange an on-water demo on Table Rock Lake.
Kimberling City: 13253 State Hwy 13, Kimberling City, MO 65686 — (417) 739-5912
Shell Knob: 26325 State Hwy 39, Shell Knob, MO 65747 — (417) 213-4999
Online: AmericanWaterSports.com
