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2019 Keystone RV Cougar 315rls Specs

GVWR
12,400 lbs
HITCH
1,995 lbs
DRY
10,475 lbs
Full Specs
1

Can Your Vehicle Tow This?

Enter your vehicle to check manufacturer-rated limits

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2

Get Your Real Numbers

Tow rating is one limit — payload is what overloads first

The full calculator factors in:
Tongue weight vs payload
Water tanks (50 gal = 417 lbs)
Propane (40 lbs full)
Passengers in truck
Gear, bikes, coolers, tools
Cargo weight distribution
Your truck's payload limit carries tongue weight, passengers, and everything in the bed — that's the number that overloads first. The calculator checks both tow and payload with real gear weights.

Specifications by Category

View specs, shop products, or tap "More" for details.

Towing & Dimensions

Specs Value Buy Shop All Top 5
GVWR 12400 lbs - - -
Dry Weight 10475 lbs - - -
Hitch Weight 1995 lbs - - -
Payload Capacity 1915 lbs -
Length 428 in -
Width 96 in -
Exterior Height 150 in -
Specs
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GVWR
12400 lbs
Dry Weight
10475 lbs
Hitch Weight
1995 lbs
Payload Capacity
1915 lbs
Details
Recommended
Coil SumoSprings
4.5
Length
428 in
Details
Recommended
Furrion Backup Camera
4.5
Width
96 in
Details
Recommended
Clip On Mirrors
Exterior Height
150 in
Details
Recommended
Telescoping Ladder
4.5

Towing & Dimensions Best Sellers

Top-rated products RV owners use to upgrade or maintain their RV.

Tank Capacities

Specs Value Buy Shop All Top 5
Number Of Fresh Water Holding Tanks 1 -
Number Of Gray Water Holding Tanks 1 -
Number Of Black Water Holding Tanks 1 -
Fresh Water Tank Capacity 81 gal - -
Gray Water Tank Capacity 76 gal - - -
Black Water Tank Capacity 38 gal - -
Number Of Propane Tanks 2 -
Propane Tank Capacity 60 lbs -
Specs
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More
Number Of Fresh Water Holding Tanks
1
Details
Recommended
RV Water Filter
4.7
Number Of Gray Water Holding Tanks
1
Details
Recommended
Camco Odor Control
4.6
Number Of Black Water Holding Tanks
1
Details
Recommended
Rino RV Tank Rinser
4.5
Fresh Water Tank Capacity
81 gal
Details
Gray Water Tank Capacity
76 gal
Black Water Tank Capacity
38 gal
Details
Number Of Propane Tanks
2
Details
Recommended
Propane Tank Gauge
4.4
Propane Tank Capacity
60 lbs
Details
Recommended
30Lb Propane Tank

Tires & Wheels

Specs Value Buy Shop All Top 5
Front Brake Type Not Applicable - - -
Rear Brake Type Electric Drum -
Rear Tire ST235/80R 16E Full Spec - - -
Rear Tire Aspect Ratio 80 - - -
Rear Tire Speed Rating E - - -
Rear Tire Width 235 - - -
Rear Wheel Diameter 16 - - -
Spare Tire Location Exterior Mounted -
Wheels Composition Aluminum - - -
Specs
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Front Brake Type
Not Applicable
Rear Brake Type
Electric Drum
Details
Recommended
Best Brake Controller
4.6
Rear Tire
ST235/80R 16E Full Spec
Rear Tire Aspect Ratio
80
Rear Tire Speed Rating
E
Rear Tire Width
235
Rear Wheel Diameter
16
Spare Tire Location
Exterior Mounted
Details
Recommended
Best Tire Cover
4.5
Wheels Composition
Aluminum

Heating & Cooling

Specs Value Buy Shop All Top 5
Air Conditioning Type Automatic -
Water Heater Tank Capacity 6 g -
Heater Type Automatic -
Water Heater Pump Power Mode Electrical / Propane - - -
Specs
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Air Conditioning Type
Automatic
Details
Recommended
Dometic 13.5K Air Conditioner
4.3
Water Heater Tank Capacity
6 g
Details
Recommended
RV Tank Water Heater
4.4
Heater Type
Automatic
Details
Recommended
Buy RV Furnace
Water Heater Pump Power Mode
Electrical / Propane

Living Room / Bedroom(s)

Specs Value Buy Shop All Top 5
Full Size Master Bedroom Closet Yes - - -
Living Area Location Rear - - -
Master Bedroom Door Style Conventional Door - - -
Master Bedroom Flooring Type Carpet - - -
Master Bedroom Location Front - - -
Master Bedroom Mirror Doors Yes - - -
Master Bedroom Shades / Curtains Yes - - -
Number Of Convertible / Sofa Beds 2 - - -
Number Of Queen Size Beds 1 -
Number Of Recliner / Rockers 2 - - -
Number Of Sofas 1 - -
Reclining Sofa No -
Sofa Material Vinyl - - -
Specs
Buy Now
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Full Size Master Bedroom Closet
Yes
Living Area Location
Rear
Master Bedroom Door Style
Conventional Door
Master Bedroom Flooring Type
Carpet
Master Bedroom Location
Front
Master Bedroom Mirror Doors
Yes
Master Bedroom Shades / Curtains
Yes
Number Of Convertible / Sofa Beds
2
Number Of Queen Size Beds
1
Details
Recommended
Queen RV Mattress
4.3
Number Of Recliner / Rockers
2
Number Of Sofas
1
Details
Recommended
Tri-Fold Sofa
4.6
Reclining Sofa
No
Details
Recommended
RV Loveseat Recliner Sofa
4.3
Sofa Material
Vinyl

Kitchen / Dining

Specs Value Buy Shop All Top 5
Kitchen / Living Area Flooring Type Carpet / Vinyl - - -
Kitchen Location Center - - -
Kitchen Table Configuration Bench Seats - - -
Number Of Oven Burners 3 - - -
Refrigerator Power Mode Electric / Propane - - -
Refrigerator Size Full-Size - - -
Specs
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Kitchen / Living Area Flooring Type
Carpet / Vinyl
Kitchen Location
Center
Kitchen Table Configuration
Bench Seats
Number Of Oven Burners
3
Refrigerator Power Mode
Electric / Propane
Refrigerator Size
Full-Size

Bathroom

Specs Value Buy Shop All Top 5
Bathroom Flooring Type Vinyl - - -
Bathroom Location Center - - -
Number Of Bathrooms 1 - - -
Toilet Type Porcelain Top 5
Specs
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More
Bathroom Flooring Type
Vinyl
Bathroom Location
Center
Number Of Bathrooms
1
Toilet Type
Porcelain
Details
Buying Guide Top 5 Toilet Type Products
Recommended
RV Toilet with Sprayer Attachment

Exterior

Specs Value Buy Shop All Top 5
Awning Length 24 ft/m - -
Number of Awnings 2 -
Leveling Jack Type Front Power / Rear Power - - -
Number Of Axles 2 - - -
Sidewall Construction Fiberglass - - -
Number Of Emergency Exits 1 - - -
Number of Doors 1 -
Door Type Plastic / Glass -
Body Material Aluminum - - -
Specs
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More
Awning Length
24 ft/m
Details
Number of Awnings
2
Details
Recommended
Motorized RV Awning Set
4.4
Leveling Jack Type
Front Power / Rear Power
Number Of Axles
2
Sidewall Construction
Fiberglass
Number Of Emergency Exits
1
Number of Doors
1
Details
Recommended
Buy New Steps
Door Type
Plastic / Glass
Details
Recommended
Buy Door Lock
Body Material
Aluminum

Options

Specs Value Buy Shop All Top 5
Air Conditioning Prewiring Yes -
Battery Power Converter Yes - - -
Bunkhouse No - - -
Cable Prewiring Yes - - -
Heat Prewiring Yes - - -
Heated No -
Interior Wood Finish Yes - - -
Metallic No - - -
Overhead Fan Yes - -
Phone Prewiring No - - -
Power Retractable Awning Yes - - -
Power Retractable Slideout Yes - - -
Refrigerator Standard - - -
Satellite No - - -
Satellite Prewiring Yes - - -
Screened Room No - - -
Sliding Glass Door No - - -
Surround Sound No - - -
TV Antenna Prewiring Yes - - -
Wallpaper Yes - - -
Washer / Dryer Prewiring Yes - - -
Water Heater Tank Bypass Yes - - -
Specs
Buy Now
More
Air Conditioning Prewiring
Yes
Details
Recommended
Buy Furrion 18K Conditioner
Battery Power Converter
Yes
Bunkhouse
No
Cable Prewiring
Yes
Heat Prewiring
Yes
Recommended
FOGATTI RV Furnace 35,000 BTU High-Capacity - Quiet Thermostat Controlled RV Heater for Motorhome, Camper & Travel Trailer
Interior Wood Finish
Yes
Metallic
No
Overhead Fan
Yes
Details
Recommended
Overhead Fan
4.2
Phone Prewiring
No
Power Retractable Awning
Yes
Power Retractable Slideout
Yes
Refrigerator
Standard
Satellite
No
Satellite Prewiring
Yes
Screened Room
No
Sliding Glass Door
No
Surround Sound
No
TV Antenna Prewiring
Yes
Wallpaper
Yes
Washer / Dryer Prewiring
Yes
Water Heater Tank Bypass
Yes

Entertainment

Specs Value Buy Shop All Top 5
Number Of Discs 1 - - -
Number Of Televisions 2 -
Speaker Location Interior / Exterior - -
Specs
Buy Now
More
Number Of Discs
1
Number Of Televisions
2
Details
Recommended
Insignia LED HD Alexa TV
4.3
Speaker Location
Interior / Exterior
Details
Recommended
RecPro Exterior Speakers
4.4

Instrumentation

Specs Value Buy Shop All Top 5
Number Of Radios 1 - - -
Specs
Buy Now
More
Number Of Radios
1

Interior

Specs Value Buy Shop All Top 5
Material Vinyl - - -
Specs
Buy Now
More
Material
Vinyl

Quick Overview

Specs Value Buy Shop All Top 5
Parent Company Keystone RV Inc. - - -
Year 2019 - - -
Make Keystone - - -
Display Name Cougar (East) 315RLS - - -
Class Fifth Wheel - - -
Max Sleeping Count 6 - - -
Number of Slideouts 3 - - -
Introduction Year 2019 - - -
Specs
Buy Now
More
Parent Company
Keystone RV Inc.
Year
2019
Make
Keystone
Display Name
Cougar (East) 315RLS
Class
Fifth Wheel
Max Sleeping Count
6
Number of Slideouts
3
Introduction Year
2019

Mint Score

Overall Score
3.0
out of 5
Tow-Ready Score
3.4/ 5
Living Space & Layout
3.0/ 5
Comfort & Features
3.2/ 5
Storage Space
2.5/ 5
Off-Grid & Campsites
3.2/ 5

About the 2019 Keystone RV Cougar 315rls

With its spacious interior and three slideouts, the 2019 Cougar 315RLS offers a residential feel that’s perfect for families or couples looking to entertain. You’ll enjoy the comfort of a well-appointed living area with a cozy fireplace and ample seating, while the master bedroom provides a private retreat. Weighing in at just under 10,500 lbs dry, it’s manageable for many trucks, making it a great choice for those ready to elevate their camping experience. Discover how this fifth wheel can enhance your travels.

What We Love

Large Pass-Through Storage Exterior Speakers Vinyl Flooring Throughout Rear Living Area Water Heater Bypass

Consider This

Heavy Rig - Requires 3/4-Ton+ Long Rig - Limited Campsite Options High Hitch Weight (1,200+ lbs)

How We Scored This RV

Our MintRV Rating analyzes over 50 specifications across 5 key dimensions. Each dimension starts at 5.0 points and adjusts based on how this RV's specs compare to others in its class. Below is exactly how we calculated each score for this fifth wheel.

Tow-Ready Score
6.8/10
Base Score 5.0
Spec-based adjustments Based on Fifth Wheel class averages +1.8
Final Tow-Ready Score 6.8
Living Space & Layout
6.0/10
Base Score 5.0
Spec-based adjustments Based on Fifth Wheel class averages +1.0
Final Living Space & Layout 6.0
Comfort & Features
6.3/10
Base Score 5.0
Spec-based adjustments Based on Fifth Wheel class averages +1.3
Final Comfort & Features 6.3
Storage Space
5.0/10
Base Score 5.0
Spec-based adjustments Based on Fifth Wheel class averages +0.0
Final Storage Space 5.0
Off-Grid & Campsites
6.3/10
Base Score 5.0
Spec-based adjustments Based on Fifth Wheel class averages +1.3
Final Off-Grid & Campsites 6.3
About Our Rating Methodology

MintRV Ratings are calculated using verified manufacturer specifications. We compare each RV against others in its class type and weight category. Scores are updated when new specs become available. Learn more about our methodology →

Owner Reviews

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Frequently Asked Questions

To safely tow the 2019 Keystone RV Cougar 315rls, ensure your vehicle's rated tow capacity exceeds its GVWR of 12400 lbs. With a dry weight of 10475 lbs and hitch weight of 1995 lbs, most midsize trucks and SUVs can tow it comfortably with a 10-20% safety margin.

This Fifth Wheel has a dry weight of 10475 lbs and a GVWR of 12400 lbs, giving a payload capacity of 1915 lbs for gear, water, and supplies.

The approximate dimensions are length 428 in., width 96 in., and height 150 in. Always confirm clearances for garages, storage, and campsites.

The Cougar 315rls includes a fresh water capacity of gallons, black water tank(s), and lbs of propane capacity-ideal for off-grid weekends.

Many Cougar 315rls owners add a weight-distribution hitch, brake controller, leveling system, and portable generator to improve towing comfort. Solar kits, backup cameras, and upgraded tires are also popular upgrades.

With a GVWR of 12400 lbs and dry weight of 10475 lbs, the Cougar 315rls is light enough for smaller tow vehicles yet rugged enough for light off-road travel. Add solar, extra propane, and a generator for extended off-grid stays.

This floorplan sleeps up to 6 people comfortably - perfect for couples or small families seeking a lightweight, easy-tow Fifth Wheel.

The Cougar 315rls features body construction with sidewalls and 2 axle(s). Its GVWR of 12400 lbs ensures strength without excessive towing weight.
?? Tip: Always check your vehicle's specific towing capacity in the owner's manual. Consider payload and tongue weight too!

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