2020 Heartland RVs Milestone Series M-377MB Specs

2020 Heartland RVs Milestone Series M-377MB Specs
Specifications
Floor Plan

Type

Fifth Wheel

Basic Warranty (Months)

12

Revision Status

Carryover

Maximum Sleeping Capacity

8

Number Of Slideouts

4

Length (ft-in / m)

42' 2' / 12.9

Interior Height (in / mm)

N/A

Base Weight (lbs / kg)

12790 / 5801.5

Carrying Capacity (lbs / kg)

2162 / 980.7

Hitch Weight (lbs / kg)

2430 / 1102.2

Number Of Axles

2

Air Conditioning (BTUs)

13500

Heater (BTUs)

35000

Fresh Water Capacity (gal / L)

50 / 189.3

Gray Water Capacity (gal / L)

80 / 302.8

Black Water Capacity (gal / L)

80 / 302.8

Propane Capacity (gal / lbs)

14.2 / 60

Water Heater Tank (gal / L)

6 / 22.7

Air Conditioning

Standard

Kitchen Dinette

Chairs

Interior Flooring Type

Carpet / Vinyl

Master Bedroom

Standard

Number Of Bathrooms

2

Shower

Standard

Television

Standard

DVD Player

Standard

Patio Awning

Standard

Leveling Jack Type

Front Power / Rear Power

Power Retractable Entry Steps

Not Available

Interested in Selling Your Vehicle?

Get a verified offer sent directly to you.

Click Here
Make sure you're protected! Insure your RV for as low as just $125/year.*

JD Power Travel Trailer/5th Wheel Buying Program

Take advantage of real dealer pricing and shop special offers on new and used Travel Trailers/5th Wheels. Select your Travel Trailer/5th Wheel to get started.

See Dealer Pricing
Learn More about the JD Power Travel Trailer/5th Wheel Buying Program

Progressive RV Insurance

Insure your 2020 Heartland RV M-377MB for just $125/year*.

  • Leader in RV Insurance: Personalize your policy without breaking the bank.
  • Savings: We offer low rates and plenty of discounts.
  • Coverages: Specialized options for full timers and recreational RVers.
Get a Quote
*Annual premium for a basic liability not available in all states.

Other Resources

Use these tools provided by our trusted partners to complete your RV shopping experience.

Attention West Coast RV Owners

We’ll pay CASH for your RV — TODAY!
Get Cash

Sell Your Travel Trailers/5th Wheel with GoRollick

Receive a direct offer on your Travel Trailers/5th Wheel with GoRollick.
Get Started

Trucks and SUVs for Hauling

See All Trucks
See All SUVs
2026 Ford F-150

2026 Ford F-150

7,400 lbs towing capacity

Starting at $37,290

Build and Price

2026 Jeep Gladiator

2026 Jeep Gladiator

4,500 lbs towing capacity

Starting at $39,820
Best car deal in 43215

Build and Price

Research Other Trucks and Cars

Search

Research Another Vehicle

Truck Deals, Pricing and Values

Popular on JD Power

Planning the Camping Budget: What Is the...
Composting Toilets: How They Work and th...
What's the Difference Between Dolly Towi...
Camping While Connected: How to Get Wi-F...
Travel Trailer Insurance: The Cost, Fin....

Popular RV Values

Popular RV Makes

Popular RV Specs

Popular RV Categories

2020 Heartland RVs Milestone Series M-377MB Specs and Standard Equipment | JD Power