Merits Pioneer 9 S331 Heavy Duty 3-Wheel Mobility Scooter – 500 lb Capacity & 32 Mile Range

Merits Pioneer 9 S331 Bariatric Mobility Scooter – Heavy-Duty 3-Wheel Scooter with 500 lb Capacity & 32 Mile Range

The Merits Pioneer 9 (S331) is a bariatric mobility scooter designed for riders who need higher weight capacity, extended range, and dependable everyday performance. Built with a reinforced frame, large flat-free tires, and a powerful motor system, this heavy-duty scooter supports both indoor maneuverability and outdoor travel with confidence.

At Independent Living Superstore, this model is frequently selected by customers who need bariatric-level support without giving up turning capability. Its combination of a 500 lb weight capacity and tight turning radius makes it a strong choice for everyday mobility across a range of environments.

Best For

The Pioneer 9 is ideal for users seeking a heavy-duty mobility scooter with extended range and high weight capacity. It is well suited for riders up to 500 lbs, individuals navigating both indoor and outdoor environments, and those who want a balance of strength, comfort, and maneuverability without stepping into a bulkier 4-wheel platform.

Maneuverability / Portability

The 3-wheel design provides a tighter turning radius than most full-size scooters, allowing easier navigation in indoor spaces while maintaining strong outdoor capability. With 4 inches of ground clearance and a stable front wheel configuration, it handles thresholds and uneven surfaces more confidently than many compact models. It can be disassembled for transport, though its heavier components may require assistance or a lift system.

Power / Performance

Powered by a DC 24V, 400W motor and a Dynamic Rhino2 160A controller, the Pioneer 9 delivers consistent and reliable performance. Dual 75Ah AGM batteries provide a travel range of up to 32 miles per charge under typical conditions. Range may vary depending on terrain, rider weight, and usage conditions. With a climbing capability of up to 12°, it is designed to handle moderate inclines in residential and community settings.

Comfort / Control

Comfort is enhanced with a spacious sliding captain’s seat measuring 22" wide by 20" deep and a supportive 22" backrest. The hydraulic adjustable tiller allows for ergonomic positioning, while the half-speed inhibit switch supports safer operation in tighter environments. A full lighting system improves visibility and rider confidence during low-light use.

Design / Everyday Use

Designed for full-time daily use, the Pioneer 9 features a reinforced frame, larger battery system, and durable components that support long-term reliability. Its design balances strength and maneuverability, making it suitable for both indoor navigation and outdoor travel across a variety of surfaces.

Complete Your Setup

Enhance your Pioneer 9 for maximum convenience, storage, and everyday usability with compatible accessories designed to support your heavy-duty mobility experience:

• ComfyGO Cup Holder – Keep drinks securely within reach during extended outings and daily use
• ComfyGO Premium Glow Cup Holder – Improve visibility while adding convenient beverage storage for day or evening travel
• ComfyGO Universal Phone Holder – Keep your phone accessible for navigation, communication, and hands-free convenience
• Multipurpose Storage Bag – Add practical storage for personal items, shopping bags, and travel essentials
• ComfyGO Cane Holder – Securely carry a cane or walking aid for added independence throughout your day

Specifications

Model	S331
Product Type	Bariatric 3-Wheel Mobility Scooter
Weight Capacity	500 lbs
Top Speed	6 mph
Travel Range	Up to 32 miles per charge
Turning Radius	50"
Ground Clearance	4"
Overall Length	54"
Overall Width	27"
Overall Height	47"
Product Weight	249 lbs
Heaviest Piece	101 lbs
Seat Width	22"
Seat Depth	20"
Backrest Height	22"
Motor	DC 24V, 400W
Controller	Dynamic Rhino2 160A
Battery Type	AGM
Battery Specs	(2) 75Ah M24 AGM
Charger	6A Off-board
Climbing Gradient	12°
Front Wheel	10" flat-free
Drive Wheels	12.5" flat-free
Suspension	Yes
Control Type	Hydraulic adjustable tiller
Lighting	Headlight, tail lights, turn signals, hazard lights
HCPCS Code	K0808
Color	Red
Airline Approval	No
Use Environment	Indoor / Outdoor full-time use
What’s Included	Scooter, batteries, charger, basket, seat, standard components

Enhance Your Scooter Setup

Improve convenience and everyday usability with compatible add-ons such as storage, protection, and accessories. Browse our Mobility Scooter Accessories.

Not sure which scooter is right for you?

If you are comparing weight capacity, range, and maneuverability, understanding how each platform fits your daily needs can help guide your decision. Review our Mobility Scooter Buying Guide.

Warranty

Frame & seatbelt: 5 years
Major components (motor, controller, electronics): 18 months
Structural & mechanical components: 13 months
Select parts & batteries: 6 months

Shipping & Delivery

This full-size scooter typically ships via freight carrier depending on destination and availability. Tracking details are provided once the order has been processed.

Important Note

This is a full-size bariatric scooter designed for strength and extended range. Due to its size and weight, transport may require a compatible lift or carrier.

Direct-to-Consumer Disclaimer

Independent Living Superstore operates as a direct-to-consumer retailer and does not bill Medicare, Medicaid, or private insurance.

Why Buy From Independent Living Superstore

Independent Living Superstore is a veteran-owned, family-run business focused on dependable mobility solutions, clear guidance, and responsive customer support.

Contact Us

Email: support@independentlivingsuperstore.com
Phone: (844) 795-2930

Policy Links

Return Policy
Privacy Policy
Terms of Service