Used 2018 Grand Design RV Momentum M-Class 350m for sale at Blue Fox RV in North Logan, UT. Sleeps 8, 38.8 ft long, 3 slides. Listed at $58,995.

Listing last updated .

Blue Fox RV North Logan, UT Call us direct: (435) 317-3625

2018 Grand Design RV Momentum M-Class 350m

Stock #
NEEDSTOCK1
Status
On the lot
$58,995
Est. $424/mo · $11,799 down · 6.99% APR · 180 mo
Length
39 ft
Sleeps
8 ppl
Slideouts
3
GVWR
16,500 lbs
Dry Weight
13,500 lbs

Everything you'd ask on the lot.

This Momentum M-Class toy hauler fifth wheel by Grand Design has the luxury and space you desire when taking on the great outdoors! This dual entry 350M unit features triple slides, one and a half baths, and 11' of garage space, plus a loft bed too!

Step inside the main entry door and notice all the home like features with an entertainment center including a LED TV with fireplace below. There is also a pantry/linen straight ahead, a large slide out 4-seat sofa to the left of the main entry door with a stowable table for comfortable seating during mealtimes and more. You can even choose the option with sofa recliners and a dinette, or smaller sofa with dinette in place of the 4-seat sofa if you like.

The kitchen offers all the amenities you need to enjoy spending time on the road. There is a slide out 18 cu. ft. refrigerator, three burner range with overhead microwave, and a counter peninsula along with a kitchen sink, and storage both above and below the counter.

Head up the steps to the right of the entry door and find a side aisle bath including a toilet, vanity with sink, plus a shower with seat and skylight.

The door at the head of the hall leads into the front bedroom which features a queen size bed or choose a king, nightstands, overhead storage, and a slide out wardrobe with dual drawers.

Back through the unit to the rear cargo area first notice the single loft above along the front of the garage. There is a half bath featuring a toilet and sink for added convenience when you come in from a fun filled day.

The 11' garage features a rear ramp door for ease in loading up the toys. When the toys are removed you have an option of adding a happi-jack bed with dual roll-over sofas/table for added seating and sleeping space while camped. There is a side man door for easy access when the rear ramp door is closed or patio is raised.

The exterior unobstructed pass through storage, plus the universal docking station provide extra conveniences when traveling. You can even choose an optional exterior entertainment center with LED TV and DVD, an optional Onan 5.5KW gasoline generator, and more!

Floorplan

Length
38 ft
Slides
3
Sleeps
8
2018 Grand Design RV Momentum M-Class 350m floorplan

Take a look around — literally.

A walk-through from our lot — the parts a photo can't show.

RV specs, all in one place.

Towing & Dimensions

GVWR 16,500 lbs
Dry Weight 13,500 lbs
Hitch Weight 2,825 lbs
Length 38' 9"
Exterior Height 13' 5"

Tires & Wheels

Rear Tire Westlake® G-Rated Tires Full Spec
Rear Brake Type Electric Drum
Front Brake Type Not Applicable
Wheels Composition Aluminum
Tire Brand Westlake®
Rear Wheel Diameter 16
Spare Tire Location Exterior Mounted
Rear Tire Speed Rating G

Cargo

Cargo Area Rear Door Style Ramp Door
Cargo Area Length 132 / 3352.8 in
Cargo Area Flooring Type Vinyl / Carpet

Quick Overview

Parent Company Winnebago Industries
Year 2018
Make Grand Design
Max Sleeping Count 8
Number of Slideouts 3
Introduction Year 2015

Why buy your RV from us?

Most of our buyers come from referrals because we sweat the small stuff after the sale.

Localy Family owned
FULL Pre-Delivery inspection
No Doc Fee!
No Dealer Fees

2018 Grand Design RV Momentum M-Class 350m

$58,995

Quick answers, no sales pitch.

What towing capacity do I need for a RV?

Most RVs require a vehicle rated for at least the unit's GVWR plus 1,000 lbs of margin. We'll match you with units your tow vehicle can handle.

Is the 2018 Grand Design RV Momentum M-Class 350m still available?

Yes — as of August 24, 2026, this unit is on our lot in North Logan, UT. Last updated August 21, 2026.

How much is the 2018 Grand Design RV Momentum M-Class 350m?

$58,995. With $11,799 down at 6.99% APR over 180 months, that's about $424/mo. We accept trades — talk to us about your current unit when you visit.

What can tow this Grand Design RV Momentum M-Class?

1-ton truck with a proper heavy-duty towing package required — F-350+, Silverado 3500+, Ram 3500+. Dry weight is 13,500 lbs. Hitch/tongue weight is 2,825 lbs.

How many people can sleep in the Momentum M-Class?

8 people comfortably. Bed configuration: 1 queen, 1 bunk, 1 sofa-bed.

Can I trade in my current RV?

Yes — we take trades every week, even if you don't buy from us. We'll give you a real offer once we see the RV. Call (435) 317-3625 or fill out the inquiry form below to get started.

How do I schedule a walkthrough?

Call (435) 317-3625, or fill out the inquiry form below. Same-day response during business hours.

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