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The Bayliner D22I combines 11-person capacity, 55 gallons of fuel, 200–250 HP MerCruiser power, and an available extended swim platform for buyers who want the biggest D-Series stern experience.
The D22I is the most committed sterndrive purchase in Bayliner’s current deck-boat group. It takes the same 21-foot-6-inch length and 8-foot-6-inch beam as the D22, installs a 200-horsepower MerCruiser 4.5L MPI with Alpha One drive as standard, allows 250 horsepower, and reshapes the rear of the boat around an integrated swim platform instead of an outboard.
Bayliner’s own presentation focuses on transitional transom seating and the optional extended swim platform, and that is where buyers should start. If the family spends the day jumping off the stern, floating behind the boat, sitting with feet near the water, and pulling towables, the D22I turns the propulsion layout into a lifestyle feature. If the stern is mostly a place everyone passes through, the outboard D22 may be easier to justify.
Published capacity is eleven people, one fewer than the D22. Approximate standard-engine weight is 4,620 pounds, more than six hundred pounds heavier than the outboard sibling before trailer and fuel. Both carry 55 gallons. Those numbers make the D22I a serious trailer package even though the beam remains conventional.
The September 2026 dataset contains 12 listings from 2025 and 2026. This is a young market, so buying decisions revolve around engine choice, optional platform, package content, dealer pricing, and financing rather than old-boat restoration risk.
The D22I is best for the family that knows exactly why it wants sterndrive power. If the answer is “the stern is where we live,” the model makes sense. If the answer is only “250 horsepower sounds better,” keep comparing.
Published factory figures. Confirm every dimension against the individual boat before you commit.
The D22I shares the D22’s 21’6″ hull length, 8’6″ beam, 18-degree deadrise, and 1’9″ minimum draft. The big physical difference is mass. At roughly 4,620 pounds with standard engine, it is the heaviest boat in this Deck Series group and more than twice the boat-only weight of the E18.
That additional mass buys a larger platform, more systems, 55 gallons of fuel capacity, and an in-hull MerCruiser powertrain. It also changes the tow-vehicle discussion. The owner is not pulling “a 21-foot boat.” The owner is pulling a heavy I/O package whose real road weight includes trailer, fuel, batteries, tower, platform extension, and family gear.
The 18-degree bottom remains a family-focused compromise. It supports predictable recreational handling and a stable platform at rest, but it is not intended to imitate a narrow deep-V offshore hull.
Bayliner lists 22 feet 6 inches of storage length and 8 feet 2 inches of height on trailer. The D22I hull is therefore not just a little bigger than a D20I in practical ownership. It is a step into a heavier, higher-capacity package that earns its place only when the family uses the room.
The D22I uses the same basic engine family and power ceiling as the D20I but asks it to move a larger, heavier boat. The 250 is most defensible when the boat will be used near its capacity or for frequent tow sports. Additional horsepower can shorten planing transition and give the driver more reserve under load.
The drive deserves its own inspection protocol. Look at the Alpha One housing, propeller, skeg, trim cylinders, bellows, and signs of corrosion or impact. Open the engine compartment and examine cooling components, fluids, bilge cleanliness, blower function, hoses, and wiring. Ask for winterization history in freezing climates and flushing practices in salt water.
Sterndrives reward owners who maintain them proactively. The D22I’s clean stern is not free; it is created by moving mechanical complexity into and through the transom. Buyers who dislike that trade should choose the D22 outboard instead of hoping maintenance will not matter.
The D22I carries the same 55 gallons as the D22 and considerably more than the 33 gallons on the D20I. That capacity is appropriate because the boat combines a 4,620-pound standard-engine platform with 200 or 250 horsepower and capacity for eleven.
Exact consumption should come from verified engine data. Actual result changes with engine choice, load, propeller, trim, and watersports use.
The larger tank improves day-boat flexibility, but owners should not translate it directly into range without allowing reserve. It also increases tow weight when full. A buyer who routinely fills the boat before towing is carrying several hundred pounds of gasoline in addition to the already heavier I/O platform.
For budgeting, the D22I should be treated as a larger recreational powerboat, not an inexpensive 20-footer with an extra two feet. Fuel is unlikely to be the largest annual expense, but the combination of sterndrive service, 55-gallon capacity, and frequent loaded operation gives it a different ownership profile from the Element and M Series.
The D22I has enough power to feel authoritative, but its 4,620-pound standard-engine weight means horsepower is working against more mass. The 200-horsepower standard package should be evaluated with the expected crew. The 250-horsepower upgrade makes the most sense for owners who routinely carry many passengers or expect strong tow-sport acceleration.
During a test run, watch how quickly the bow drops as the boat planes, how trim changes steering effort, and whether the drive produces vibration at specific rpm. Make several turns at cruise and cross wakes from different angles.
Low-speed control matters too. The broad 8-foot-6-inch hull presents surface area to the wind. Practice reversing and turning with the sterndrive so you understand how the boat reacts before the first busy fuel-dock arrival.
The D22I is built around the rear third of the boat more than any other model in this group. Transitional transom seating forms a large sun-lounging surface, and Bayliner offers a swim-platform extension plus matching platform mats. That configuration gives swimmers a broad staging area free from the outboard powerhead found on the D22.
Deep gunnels and the extended overall length make the cockpit feel secure and substantial. In-floor ski/wakeboard storage removes long gear from passenger space, and the bow ladder supports beach access from the front.
Bayliner offers Bimini, Comfort, and Tower Packages, along with a full windshield with opening center panel, Simrad 7-inch Digital Dash, exterior lighting, tower speakers, GatorStep flooring, bow table, bow wind block, digital depth indicator, and freshwater shower.
Unlike the D22 outboard page, the D22I’s purchase case is not centered on the dedicated wet bar. It is primarily about the integrated stern, sterndrive power, and lounging/watersports experience. A buyer should physically compare the sterns of both 22-foot models. The value of the I/O becomes obvious or irrelevant within a few minutes depending on how the family expects to use the boat.
200–250 HP MerCruiser 4.5L MPI – Gives the heavy 22-foot platform substantial performance reserve for larger passenger loads.
The defining D22I option, creating more room to sit, board, and manage watersports at the waterline.
Converts the aft cockpit into a broad lounging zone made possible by the hidden sterndrive engine.
Adds more cockpit protection for buyers who boat in cooler mornings or shoulder seasons.
Integrates engine information into a modern helm display.
Available in gray or teak-look finishes for buyers prioritizing deck comfort and appearance.
Builds the D22I toward watersports rather than generic family cruising.
Fits the model’s swim-focused stern and gives passengers a practical rinse after water activities.
Inspect the MerCruiser and Alpha One system first. Verify hours and service, then look at drive oil, bellows, gimbal area, trim cylinders, cooling, blower, propeller, skeg, anodes, and corrosion. Make sure the engine compartment stays dry and that the automatic bilge pump cycles correctly.
If the boat has the optional platform extension, inspect mounts and hardware for movement. Tower-equipped boats deserve a look at gelcoat around mounting points. Test the Simrad, stereo, tower speakers, exterior lighting, freshwater shower, and every powered or plumbed accessory.
The tandem trailer carries a heavy boat. Brake function, tire age, bearings, hubs, coupler, winch, lights, bunks, and corrosion should all be part of purchase diligence.
The D22I’s 4,620-pound standard-engine figure is the first towing number buyers should notice, but not the final one. Trailer, up to 55 gallons of fuel, batteries, tower, swim-platform extension, safety gear, and everything stored aboard all increase the rig.
Bayliner lists 22 feet 6 inches of storage length and 8 feet 2 inches of trailer height. The 8-foot-6-inch beam remains within conventional trailer width, but overall weight can push buyers toward more capable trucks and SUVs.
Because the D22I is attractive specifically for water access, a slip can make ownership even more convenient. Keeping a sterndrive in the water adds maintenance considerations around growth, corrosion, and anodes. If choosing between a larger tow vehicle and seasonal storage, include both costs before purchase.
The spread between boats can reflect the 200- versus 250-horsepower engine, swim-platform extension, tower, flooring, windshield, electronics, and dealer charges.
A nearly new used D22I can be attractive because the first owner may have absorbed early depreciation and already installed desirable options. But if the used asking price approaches a discounted new boat, compare the value of choosing the exact engine, color, and factory packages.
Sterndrive service history deserves financial weight even on a 2025 hull. A well-documented drive is part of the value. A vague answer about maintenance should reduce confidence, not be dismissed because the boat looks new.
Figures come from this page’s Boat Details fields. Illustration only and not an offer of credit.
Compare the actual 200- and 250-horsepower boats and include the platform and package content you care about. The goal is to finance the correct configuration, not back into the wrong one from a payment ad.
Illustration only and not an offer of credit. Your actual rate and term depend on credit profile, vessel age, loan amount and ownership structure.
The D22I and D22 share 21’6″ length, 8’6″ beam, 55-gallon tanks, and 18-degree deadrise. The D22I carries eleven people and weighs about 4,620 pounds. The D22 carries twelve and weighs about 3,994 pounds.
The D22I gives you 200–250 HP sterndrive power and the optional extended swim platform. The D22 gives you 150–200 HP outboard power plus easier engine access and one more certified passenger.
Against the D20I, the D22I adds two feet, five inches of beam, two passengers, and 22 gallons of fuel. If those additions do not solve a real space or range problem, the smaller I/O can be easier to own.
The D22I market does not yet have enough age for buyers to shop primarily on depreciation. Every listing in the supplied sample is a 2025 or 2026. A used example should be compared directly with new dealer stock.
Ask for the exact option sheet. The swim-platform extension is central enough to this model that two D22Is without the same stern equipment should not be valued as if they were identical. The same is true of the 250-horsepower engine, tower, windshield, electronics, and flooring.
Inspect any used boat’s drive and engine compartment even if hours are low. Low hours do not prove correct winterization or saltwater care.
New buyers should negotiate from an out-the-door figure. On a higher-priced D Series, dealer add-ons and finance products can create a meaningful gap between the advertised boat and the contract.
Send Float Finance the exact listing so the purchase can be evaluated around the real engine, platform, options, and seller.
Prequalification may involve a soft credit inquiry where applicable. Your information is not sold as a lead list.
The D22I is 21’6″ overall with an 8’6″ beam, 18 degrees of deadrise, 1’9″ minimum draft, and 2’9″ maximum draft. Bayliner lists 22’6″ of storage length, 8’2″ of height on trailer, and approximately 4,620 pounds with standard engine.
Standard power is a 200-horsepower MerCruiser ECT 4.5L MPI sterndrive with Alpha One outdrive. Bayliner offers a 250-horsepower version.
Published capacity is eleven people with a maximum weight capacity of 1,552 pounds.
Bayliner offers a swim-platform extension and matching platform-mat options. Verify the actual listing or build sheet because not every boat has it.
Fuel capacity is 55 gallons, the same as the D22 and 22 gallons more than the D20I.
Yes. Bayliner publishes approximately 4,620 pounds with standard engine for the D22I versus 3,994 pounds for the D22.
It has strong available horsepower, a standard stainless tow ring, in-floor ski storage, and a Tower Package option. The integrated stern also works well for riders getting in and out of the water.
Potentially. Current inventory is mostly new or nearly new. Send Float Finance the actual listing and purchase details for a deal-specific review.
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