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5th Wheel Hitches

Build Your Own Montana High Country 378RD Fifth Wheel by Keystone RV

Build Your Own RV - Step 4: Choose Options

Your Selections:

  • RV Type: Fifth Wheel
  • Brand: Montana High Country
  • Floorplan: 378RD

Now select the options you’d like your new RV to have, then click "get INSTANT Quote" and we’ll send you the price for the unit you’ve built.

Dry Weight11815lbs
Cargo Capacity3585lbs
Hitch Weight2450lbs
Axle WeightN/A
Exterior Height12.75'
Exterior Length40.92'
Exterior WidthN/A
Interior HeightN/A
Fresh Water
Black Water
Gray Water
Awning Size19'
Specifications are based on the latest product information from the manufacturer. Each manufacturer reserves the right to make changes to the specifications at any time without notice.

Montana High Country Fifth Wheel Brochure

Please click the brochure cover on the left to view or download the Montana High Country brochure.

Adobe Reader is required to view our brochures.

  Shipping Options

Don't want to make a trip to our Dealership to pick up your new camper? No Problem! offers delivery at an afforable rate anywhere in the U.S.! will deliver to the destination of your choice, perhaps your local campground, workplace, or your front door. We also offer partial delivery as an alternative. We will meet you half-way, and you can cut back on driving time and delivery charges!

  Shipping Quote

Please enter your zip code so we can calculate your shipping cost.

*This is only valid for the lower 48 States. Alaska, Hawaii, Canada, and International customers must call for a delivery quote since more details will need gathered to determine the cost. *One-Way toll road charges will be the resposibility of the customer. *Additional fees and/or duties may apply to International shipping requests. *Quotes are estimates only, actual rate may vary slightly.

Get INSTANT Pricing!

Tell us where to send the price you've requested using this 30 second form below, or call us during business hours at 1-877-877-4494.

*By submitting this form you agree to the terms and conditions listed. For mobile alerts including price quotes and follow up communications, message and data rates may apply. Up to 6 messages per month. Text STOP to cancel, text HELP for help. Privacy Policy and Terms and Conditions.

Select Your Color
[Back To Standard Options]   
Click Here For Colors Samples
Construction Options
12V Deep Cycle Battery
12V Dry Cell EV/Deep Cycle Sealed Battery, Last Longer Than Typical Deep Cycle Battery
Moving to Montana Package: Congac Walnut Cabinetry, Brushed Nickel Cabinet Hardware, Solid Hardwood Slideout Fascia, 6 ft. 6 in. Tall Main Slide-outs, Flush Mounted LED Interior Lights, Roller Shades, Ceiling Fan, Ceiling Crown Molding, Tri-Fold Hide-a-Bed Sofa, Winegard Rayzar Z-1 HD Digital Antenna, RG-6 Satellite Prep, 40 inch or 50 inch LED TV in Living Area, 32 inch HD LED TV in Bedroom, DVD Player, Bluetooth Sound Bar with FM Tuner, Marine Grade Exterior Speakers, 50 AMP Service with 65 AMP Converter, Seamless 48 in. X 30 in. Fiberglass Shower, Sky Light Over Shower, Porcelain Foot Flush Toilet, 18 Gallon Per Hour DSI Gas/Electric Water Heater, Solid Surface Kitchen Countertop with Covers, Sink Cover Storage Below Sink, Stainless Steel Sink and Faucet with Pullout Sprayer, 22 inch Oven and Broiler with Flush Glass Cover, 30 inch Over the Range Microwave, Hi-Output Range with Auto Igniter, Power Vent Fan with Rain Sensor, Full Extension Drawer Guides, Motion Sensor LED Pantry Light, Sky-View Lighter Skylight with Shade, RV or Residential Refrigerator, 60 in. X 80 in. Queen Bed, Beside USB Charging Station, Bedside Night Stands, Designer Headboard with Reading Lights, Two Bedside Windows in Slide Out, Massive Storage Under Bed, Washer/Dryer Prepped with Separate 20 AMP, Magnetic Bedroom Door Holder, Wire and Frame for 2nd Ducted AC, Motion Sensor LED Closet Light
High Country Package: Welded Aluminum Framed Walls and Floors, Laminated Sidewalls with Metal Backing Strips to Anchor Interior Cabinets, Seamless Plyneneer Floor Decking, Powder Coated 10 inch or 12 inch I-Beam Framer, Tested and Approved for 0 Degree, R-38 Equivalent Rad Tech Roof, R-21 Insulated Main Floor, R-15 Insulated Slide Out Floors, R-11 Insulated Sidewalls, Vented Attic, Insulated and Heated Tanks and Valves, Enclosed and Heated Low Point Drains, 12V Electric Fresh Water Tank Heater, 35,000 BTU Furnace, Max Turn Front Cap with Radius Frame, Hitch Vision Mirror, Prepped for Rear View Camera, MORryde CRE 3000 Suspension, 16 inch 8-Lug Aluminum Wheels G-Rated, 6000 or 7000 lb. Dexter E-Z Lube Axles with Self Adjusting Brakes, Back-Up Lights, Drop Frame Pass Thru Storage, Magnetic Baggage Door Holders, Four Step Entry Steps, Ground Effect Lighting, Motion Sensor LED Lights in Pass Thru, Heated Convenience Center, Front Cap with Automotive Paint
Tailgate Bike Rack
15K BTU Quiet Air Conditioning with Heat Pump
Automatic Leveling System 6 Point
Electric Fireplace
12 Cubic Foot 4 Door Refrigerator
Theater Seating in place of Recliners
4 Slideout Awnings Installed
Dual Pane Frameless Windows
Low Profile 2nd Ducted A/C 13,500 BTU
Generator Ready
Onan Marquis Gold 5.5KW LP Generator
King Size Bed
Free Standing Dinette IPO Booth Dinette
Power Vent in Bedroom (N/A with 2nd A/C)
Power Vent Fan in Bathroom
Dealer Prep - FREE!

RVW Financing
RVW Financing, Once you decide on the perfect RV that fits your family, let RVW do the rest. We offer financing with very competitive rates and terms. Speak to an RV Consultant about your options. (Click for more details)

Customer Protection Plan
RVWholesalers Nationwide Service Network (Click for more details)
4-Year Customer Protection Plan (Price not included with online quote price.) (Click for more details)
4-Year Tire and Wheel Coverage (Click for more details)

Prodigy Brake Control (Installed) (Click for more details)
JT's Strong Arm Jack Stabilizer (Click for more details)
Kingpin Tripod Stabilizer (Click for more details)
Large Entry Grab Handle (Click for more details)
Fifth Wheel Hitches (Installation Available) - Speak with our RV Consultants about your 5th-Wheel Hitch options (Prices Vary, Hitch price not included with online quote price) (Click for more details)
5th Wheel Bed Saver (Click for more details)

Deluxe Starter Kit (Click for more details)
Roof Vent Covers (1 Covers) (Click for more details)
Roof Vent Covers (2 Covers) (Click for more details)
Roof Vent Covers (3 Covers) (Click for more details)
Roof Vent Covers (4 Covers) (Click for more details)
Fan Mate Model 850 Vent Cover (Click for more details)
Fantastic Fan - 3-speed fan with Reverse & Thermostat (1) (Click for more details)
RV Cover - Protect your trailer from the weather when not in use. Talk to one of our RV Consultants for more details. (Prices Vary, Cover price not included with online quote price.) (Click for more details)

Two Yamaha EF2000IS Generators with Parallel Power Cables (Click for more details)
Yamaha EF3000iSEB Generator with Boost Technology (Click for more details)
5th Wheel Snaps (Click for more details)
Fill Two Propane Tanks (Click for more details)
Winegard TRAV'LER DIRECTV Triple LNB Satellite System (Installed) (Click for more details)
Winegard TRAV'LER Automatic DISH 1000 Satellite System (Installed) (Click for more details)

Before you buy Local
Ask your Dealer the following questions.
  1. You said you will service me, but what if I am not in your area or even out of state?
  2. Why don't you offer a nationwide service network?
  3. Why am I being charged $3,000 to $15,000 more than RVW does?
  4. Why do I have to beg for a fair price, RVW gives it up front?
  5. Why did you tell me any dealer that sells this brand of trailer will service my unit?
  6. Why don't you have a warranty department staffed 6 days a week to help with my issues?
  7. Why don't you offer trip itinerary coverage?
  8. Why are you asking me to pay more for less service and coverage?
  9. I am going to call RVWholesalers back and buy from them!

Special Notes
  • Some options are not available on all models.
  • Installation of a 5th wheel hitch in a bed with a plastic bed liner will require an additional $100 installation fee.
  • Please have your truck bed empty prior to installation of the 5th wheel hitch.
  • Ohio Sales Tax Applies to Dealer Installed Options.
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