2026 Harris Grand Mariner 250

$218,332

New

Boat in Afton, OK 74331 US

builtBuilt in 2026
Year the boat was built
model

Grand Mariner 250

Boat model
engine

1 Engine (MERCURY)

Engine type and count
length

25 feet

Overall boat length
fuel

Gas

Fuel type
material

Other

Hull material
Nominal Length
25ft
Length Overall
28ft
Beam
8.5ft
Max Draft
1.75ft
Dry Weight
4537lb
Cruising Speed
19.99kn
Max Speed
34.76kn
Fuel Tanks
50gal
Hull Material
other
Hull Shape
other
Engine 1
Engine Make
MERCURY
Engine Model
350 VRDO DTS/PAS
Total Power
350hp
Fuel Type
gasoline

Price History

DateEventPrice
5/20/26Price increased$218,332
9/13/25Price decreasedPrice on request(-100.0%)
8/11/25Initial price$161,760

Videos from MarineMax Grand Lake on this 2026 Harris Grand Mariner 250

Contact MarineMax Grand Lake

Monkey Island, Oklahoma, 74331

Boattest.com Review

Overview

The Grand Mariner introduces an innovative integration with Mercury's single engine joystick system, enabling enhanced maneuverability for single-engine boats. This advancement allows the vessel to perform 360-degree rotations and precise parallel docking, significantly improving handling and control in tight spaces.

Exterior Design and Features

The boat features a thoughtfully designed exterior with adjustable seating that can be set at various levels or laid flat for comfort. A conveniently positioned cooler is accessible both from the deck and the water, allowing swimmers to easily retrieve refreshments. The Grand Mariner is equipped with a cladded power tower that includes interior lighting, enhancing both functionality and aesthetics during evening use. Upgraded wood trim accents provide a refined finish, complemented by premium JL Audio sound systems integrated into the design.

Cockpit and Bridge Technology

The cockpit center is elevated and incorporates sophisticated integrated lighting within the dash for improved visibility and ambiance. Navigation and control options include dual Simrad displays or customizable gauge configurations, catering to different user preferences. The helm features a joystick control dedicated to precise docking maneuvers, supported by premium wood-trimmed steering components. Lighting controls are managed through an advanced LED system with multiple modes, including SOS signaling for emergencies, automatic docking light activation, and a 'dock party' mode that illuminates tower lights for social gatherings.

Overview from around the web 2026 Harris Grand Mariner 250

Customers are praising the 2026 Harris Grand Mariner 250 for its spacious and comfortable design, making it perfect for family outings and entertaining guests

Many highlight the smooth and stable ride, even in choppy waters, which adds to the overall enjoyment on the lake or river. The high-quality materials and craftsmanship are frequently noted, reflecting Harris's reputation for durability and style. Users also appreciate the customizable options available, allowing them to tailor the boat to their specific needs and preferences. Overall, the 2026 Harris Grand Mariner 250 is celebrated for combining luxury, performance, and versatility in a stylish pontoon package.

The Biggest Pros and Cons

The 2026 Harris Grand Mariner 250 offers a blend of luxury, performance, and versatility, making it a popular choice for boating enthusiasts. Here are some of the pros and cons to consider:

Pros

Spacious Design: The Grand Mariner 250 features ample seating and deck space, perfect for entertaining family and friends.

Smooth Ride: Equipped with advanced hull technology, it provides a comfortable and stable ride even in choppier waters.

High-Quality Build: Harris is known for durable construction and premium materials, ensuring long-lasting performance.

Versatile Layout: The boat’s design accommodates a variety of activities, from relaxing cruises to water sports and fishing.

Modern Amenities: Includes updated electronics, comfortable upholstery, and convenient storage options for a hassle-free experience.

Cons

Price Point: As a premium pontoon boat, it may be priced higher than some competitors in its class.

Size Limitations: While spacious, the 250 model may not accommodate very large groups compared to bigger pontoon models.

Fuel Consumption: Depending on the engine choice, fuel efficiency might be less optimal for extended trips.

Limited Cabin Space: It lacks an enclosed cabin, which could be a downside in inclement weather or for overnight stays.

Made For

The 2026 Harris Grand Mariner 250 is perfect for boating enthusiasts who seek a versatile and stylish pontoon that combines luxury, comfort, and performance. Ideal for families, entertaining friends, or enjoying peaceful days on the water, this model caters to those who want ample space, premium features, and smooth handling for both relaxing cruises and lively gatherings. Whether you’re a seasoned boater or new to pontoon life, the Grand Mariner 250 offers an exceptional blend of durability and elegance to enhance every outing.

Finance your dream boat!

Use our boat payment calculator to estimate monthly payments for 2026 Harris Grand Mariner 250. Enter your down payment, choose a loan term, and adjust the interest rate to see an instant payment estimate — ideal if you're calculating boat payments before you enquire. Wondering how much does a Pontoon cost in today's market, or how much does a Harris cost for similar models? This boat financing calculator helps you compare scenarios in seconds, whether you're considering used boat financing or a new purchase.
Monthly payment
$1,382.56/mo
$
$
%
Principal Loan Amount$ 185,582
Total Payment$331,813.72

Finance your dream boat!

Use our boat payment calculator to estimate monthly payments for 2026 Harris Grand Mariner 250. Enter your down payment, choose a loan term, and adjust the interest rate to see an instant payment estimate — ideal if you're calculating boat payments before you enquire. Wondering how much does a Pontoon cost in today's market, or how much does a Harris cost for similar models? This boat financing calculator helps you compare scenarios in seconds, whether you're considering used boat financing or a new purchase.
Monthly payment
$1,382.56/mo
$
$
%
Principal Loan Amount$ 185,582
Total Payment$331,813.72

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Nominal Length
Draft
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Meet the Broker

MarineMax Grand Lake

Address

Monkey Island, Oklahoma 74331

Boat Location

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