2018 Entegra Coach Cornerstone 45w Specs
Know Before You Drive
Key specs for safe motorhome driving
⚠️ Height Alert: Over 11' tall. Watch for low bridges and overhangs!
Compact
<14k
Mid-Size
14-20k
Large
20-26k
XL
26k+
DRIVING QUICK FACTS
GVWR
54,000 lbs
License
May require CDL
Type
Class A
License Requirement
May require CDL
Standard
Check State
CDL May Apply
Essential Upgrades for the 2018 Entegra Coach Cornerstone 45w
Towing & Dimensions
| Specs | Value | Buy | Shop All | Top 5 |
|---|---|---|---|---|
| GVWR | 54000 lbs | - | - | - |
| Length | 539 in | Furrion Backup Camera | Shop Cameras | - |
| Width | 101 in | Clip On Mirrors | Shop Mirrors | - |
| Interior Height | 84 in | - | - | - |
| Towing Capacity | 20000 / 9072 lbs | - | - | - |
| Exterior Height | 155 in | Telescoping Ladder | Shop Ladders | - |
Specs
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GVWR
54000 lbs
Length
539 in
Width
101 in
Interior Height
84 in
Towing Capacity
20000 / 9072 lbs
Exterior Height
155 in
Towing & Dimensions Best Sellers
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Electrical & Solar
| Specs | Value | Buy | Shop All | Top 5 |
|---|---|---|---|---|
| Shore Power | 30 Amps | - | - | - |
| Battery Type | 12V Lead-Acid | Renogy 100Ah LiFePO4 | RV Batteries | Top 5 |
| Solar Pre-Wired | Optional | - | - | - |
| Inverter | Optional | - | - | - |
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Shore Power
30 Amps
Battery Type
12V Lead-Acid
Solar Pre-Wired
Optional
Inverter
Optional
Electrical & Solar Best Sellers
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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 | 100 gal | - | Fresh Water Tanks | - |
| Gray Water Tank Capacity | 62 gal | - | - | - |
| Black Water Tank Capacity | 41 gal | - | Back Water Tanks | - |
Specs
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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
100 gal
Gray Water Tank Capacity
62 gal
Black Water Tank Capacity
41 gal
Tank Capacities Best Sellers
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Tires & Wheels
| Specs | Value | Buy | Shop All | Top 5 |
|---|---|---|---|---|
| Rear Tire | Michelin® 315/80R 22.5 XZA1 Full Spec | - | - | - |
| Front Brake Type | Hydraulic Disc | - | - | - |
| Front Tire Width | 365 | - | - | - |
| Rear Tire Width | 315 | - | - | - |
| Wheelbase | 320 / 8128 in | - | - | - |
| Rear Brake Type | Hydraulic Disc | - | - | - |
| Front Tire Aspect Ratio | 70 | - | - | - |
| Rear Tire Aspect Ratio | 80 | - | - | - |
| Tire Brand | Michelin® | - | - | - |
| Front Tire | Michelin® 365/70R 22.5 XZA Full Spec | - | - | - |
| Front Wheel Diameter | 22.5 | - | - | - |
| Rear Wheel Diameter | 22.5 | - | - | - |
| Wheels Composition | Aluminum | - | - | - |
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Rear Tire
Michelin® 315/80R 22.5 XZA1 Full Spec
Front Brake Type
Hydraulic Disc
Front Tire Width
365
Rear Tire Width
315
Wheelbase
320 / 8128 in
Rear Brake Type
Hydraulic Disc
Front Tire Aspect Ratio
70
Rear Tire Aspect Ratio
80
Tire Brand
Michelin®
Front Tire
Michelin® 365/70R 22.5 XZA Full Spec
Front Wheel Diameter
22.5
Rear Wheel Diameter
22.5
Wheels Composition
Aluminum
Heating & Cooling
| Specs | Value | Buy | Shop All | Top 5 |
|---|---|---|---|---|
| Air Conditioning Type | Automatic | Dometic 13.5K Air Conditioner | Shop All RV AC | - |
| Heater Type | Automatic | - | - | - |
| Water Heater Pump Power Mode | Electrical | - | - | - |
Specs
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Air Conditioning Type
Automatic
Heater Type
Automatic
Water Heater Pump Power Mode
Electrical
Heating & Cooling Best Sellers
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Living Room / Bedroom(s)
| Specs | Value | Buy | Shop All | Top 5 |
|---|---|---|---|---|
| Number Of Convertible / Sofa Beds | 1 | - | - | - |
| Master Bedroom Flooring Type | Tile | - | - | - |
| Number Of Sofas | 2 | Tri-Fold Sofa | - | - |
| Master Bedroom Mirror Doors | Yes | - | - | - |
| Number Of Bathrooms | 2 | - | - | - |
| Master Bedroom Door Style | Full Sliding Door | - | - | - |
| Living Area Location | Front | - | - | - |
| Reclining Sofa | No | RV Loveseat Recliner Sofa | Shop Sofa | - |
| Number Of King Size Beds | 1 | - | - | - |
| Full Size Master Bedroom Closet | Yes | - | - | - |
| Master Bedroom Location | Center | - | - | - |
| Sofa Material | Leather | - | - | - |
| Master Bedroom Shades / Curtains | Yes | - | - | - |
Specs
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Number Of Convertible / Sofa Beds
1
Master Bedroom Flooring Type
Tile
Number Of Sofas
2
Master Bedroom Mirror Doors
Yes
Number Of Bathrooms
2
Master Bedroom Door Style
Full Sliding Door
Living Area Location
Front
Reclining Sofa
No
Number Of King Size Beds
1
Full Size Master Bedroom Closet
Yes
Master Bedroom Location
Center
Sofa Material
Leather
Master Bedroom Shades / Curtains
Yes
Living Room / Bedroom(s) Best Sellers
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Kitchen / Dining
| Specs | Value | Buy | Shop All | Top 5 |
|---|---|---|---|---|
| Kitchen Table Configuration | Chairs | - | - | - |
| Refrigerator Power Mode | Electric | - | - | - |
| Kitchen Location | Center | - | - | - |
| Number Of Oven Burners | 2 | - | - | - |
| Kitchen / Living Area Flooring Type | Tile | - | - | - |
| Refrigerator Size | Full-Size | - | - | - |
Specs
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Kitchen Table Configuration
Chairs
Refrigerator Power Mode
Electric
Kitchen Location
Center
Number Of Oven Burners
2
Kitchen / Living Area Flooring Type
Tile
Refrigerator Size
Full-Size
Bathroom
| Specs | Value | Buy | Shop All | Top 5 |
|---|---|---|---|---|
| Bathroom Location | Rear / Center | - | - | - |
| Bathroom Flooring Type | Tile | - | - | - |
| Toilet Type | Porcelain | RV Toilet with Sprayer Attachment | Toilets | Top 5 |
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Bathroom Location
Rear / Center
Bathroom Flooring Type
Tile
Toilet Type
Porcelain
Exterior
| Specs | Value | Buy | Shop All | Top 5 |
|---|---|---|---|---|
| Number of Awnings | 1 | Motorized RV Awning Set | Shop Awnings | - |
| 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 | - | - | - |
| Brand Name | JBL | - | - | - |
| Body Material | Aluminum | - | - | - |
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Number of Awnings
1
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
Brand Name
JBL
Body Material
Aluminum
Exterior Best Sellers
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Options
| Specs | Value | Buy | Shop All | Top 5 |
|---|---|---|---|---|
| Screened Room | No | - | - | - |
| Heated | No | - | - | - |
| Wallpaper | Yes | - | - | - |
| Power Adjustable Seat | Yes | - | - | - |
| Cable Prewiring | Yes | - | - | - |
| Swivel Seats | Yes | - | - | - |
| Overdrive | Yes | - | - | - |
| Refrigerator | Standard | - | - | - |
| Sliding Glass Door | No | - | - | - |
| Water Heater Tank Bypass | Yes | - | - | - |
| Power Retractable Slideout | Yes | - | - | - |
| Air Conditioning Prewiring | Yes | - | - | - |
| Satellite Prewiring | Yes | - | - | - |
| Heat Prewiring | Yes | - | - | - |
| TV Antenna Prewiring | Yes | - | - | - |
| Phone Prewiring | Yes | - | - | - |
| Bunkhouse | No | - | - | - |
| Surround Sound | Yes | - | - | - |
| Metallic | No | - | - | - |
| Seat Armrests | Yes | - | - | - |
| Interior Wood Finish | Yes | - | - | - |
| Washer / Dryer Prewiring | Yes | - | - | - |
| Power Retractable Awning | Yes | - | - | - |
| Satellite | Yes | - | - | - |
| Turbocharged | Yes | - | - | - |
| Overhead Fan | Yes | Overhead Fan | - | - |
| Battery Power Converter | Yes | - | - | - |
| Supercharged | No | - | - | - |
| Reclining Seats | Yes | - | - | - |
Specs
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Screened Room
No
Heated
No
Wallpaper
Yes
Power Adjustable Seat
Yes
Cable Prewiring
Yes
Swivel Seats
Yes
Overdrive
Yes
Refrigerator
Standard
Sliding Glass Door
No
Water Heater Tank Bypass
Yes
Power Retractable Slideout
Yes
Air Conditioning Prewiring
Yes
Satellite Prewiring
Yes
Heat Prewiring
Yes
TV Antenna Prewiring
Yes
Phone Prewiring
Yes
Bunkhouse
No
Surround Sound
Yes
Metallic
No
Seat Armrests
Yes
Interior Wood Finish
Yes
Washer / Dryer Prewiring
Yes
Power Retractable Awning
Yes
Satellite
Yes
Turbocharged
Yes
Overhead Fan
Yes
Battery Power Converter
Yes
Supercharged
No
Reclining Seats
Yes
Cabin Specs
| Specs | Value | Buy | Shop All | Top 5 |
|---|---|---|---|---|
| Seat Type | Bucket | - | - | - |
| Number Of Rows | 1 | - | - | - |
| Seat Specifications | Standard | - | - | - |
| Seat Material | Leather | - | - | - |
| Number Of Seats | 2 | - | - | - |
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Seat Type
Bucket
Number Of Rows
1
Seat Specifications
Standard
Seat Material
Leather
Number Of Seats
2
Chasis
| Specs | Value | Buy | Shop All | Top 5 |
|---|---|---|---|---|
| Chassis Model | K3 | - | - | - |
| Chassis Brand | Spartan | - | - | - |
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Chassis Model
K3
Chassis Brand
Spartan
Drivetrain
| Specs | Value | Buy | Shop All | Top 5 |
|---|---|---|---|---|
| Driveline Type | 4X2 | - | - | - |
| Transmission Brand | Allison | - | - | - |
| Number Of Speeds | 6 | - | - | - |
| Transmission Type | Automatic | - | - | - |
Specs
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Driveline Type
4X2
Transmission Brand
Allison
Number Of Speeds
6
Transmission Type
Automatic
Engine
| Specs | Value | Buy | Shop All | Top 5 |
|---|---|---|---|---|
| Horsepower RPM | 1800 | - | - | - |
| Cylinders | 6 | - | - | - |
| Torque | 2646 Nm | - | - | - |
| Engine Type | I6 Diesel Pusher | - | - | - |
| Horsepower | 605 bhp | - | - | - |
| Carburetion Type | Fuel Injected | - | - | - |
| Torque RPM | 1150 | - | - | - |
| Engine Brand Name | Cummins | - | - | - |
| Carburetion | Standard | - | - | - |
Specs
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Horsepower RPM
1800
Cylinders
6
Torque
2646 Nm
Engine Type
I6 Diesel Pusher
Horsepower
605 bhp
Carburetion Type
Fuel Injected
Torque RPM
1150
Engine Brand Name
Cummins
Carburetion
Standard
Entertainment
| Specs | Value | Buy | Shop All | Top 5 |
|---|---|---|---|---|
| Television Brand Name | Samsung | - | - | - |
| Number Of Discs | 1 | - | - | - |
| Speaker Location | Interior / Exterior | RecPro Exterior Speakers | - | - |
| Number Of Televisions | 4 | Insignia LED HD Alexa TV | Shop RV TV's | - |
Specs
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Television Brand Name
Samsung
Number Of Discs
1
Speaker Location
Interior / Exterior
Number Of Televisions
4
Entertainment Best Sellers
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Fuel & MPG
| Specs | Value | Buy | Shop All | Top 5 |
|---|---|---|---|---|
| Fuel Type | Diesel | Fuel Treatment | - | - |
| Fuel Capacity | 150 / 567.8 gal/l | 5Gal Gas Can | - | - |
Specs
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Fuel Type
Diesel
Fuel Capacity
150 / 567.8 gal/l
Fuel & MPG Best Sellers
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Instrumentation
| Specs | Value | Buy | Shop All | Top 5 |
|---|---|---|---|---|
| Number Of Radios | 2 | - | - | - |
| GPS Brand | Rand McNally | - | - | - |
Specs
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Number Of Radios
2
GPS Brand
Rand McNally
Quick Overview
| Specs | Value | Buy | Shop All | Top 5 |
|---|---|---|---|---|
| Parent Company | Thor Industries | - | - | - |
| Year | 2018 | - | - | - |
| Make | Entegra Coach | - | - | - |
| Display Name | Cornerstone 45W | - | - | - |
| Class | Class A | - | - | - |
| Max Sleeping Count | 4 | - | - | - |
| Number of Slideouts | 4 | - | - | - |
| Introduction Year | 2017 | - | - | - |
Specs
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Parent Company
Thor Industries
Year
2018
Make
Entegra Coach
Display Name
Cornerstone 45W
Class
Class A
Max Sleeping Count
4
Number of Slideouts
4
Introduction Year
2017
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 class a.
Drivability & Handling
4.5/10
Base Score
5.0
Spec-based adjustments
Based on Class A class averages
-0.5
Final Drivability & Handling
4.5
Living Space & Layout
8.3/10
Base Score
5.0
Spec-based adjustments
Based on Class A class averages
+3.3
Final Living Space & Layout
8.3
Comfort & Features
6.3/10
Base Score
5.0
Spec-based adjustments
Based on Class A class averages
+1.3
Final Comfort & Features
6.3
Storage Space
5.0/10
Base Score
5.0
Spec-based adjustments
Based on Class A class averages
+0.0
Final Storage Space
5.0
Off-Grid & Campsites
7.5/10
Base Score
5.0
Spec-based adjustments
Based on Class A class averages
+2.5
Final Off-Grid & Campsites
7.5
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 →
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Frequently Asked Questions
To safely tow the 2018 Entegra Coach Cornerstone 45w, ensure your vehicle's rated tow capacity exceeds its GVWR of 54000 lbs. With a dry weight of lbs and hitch weight of lbs, most midsize trucks and SUVs can tow it comfortably with a 10-20% safety margin.
This Class A has a dry weight of lbs and a GVWR of 54000 lbs, giving a payload capacity of lbs for gear, water, and supplies.
The approximate dimensions are length 539 in., width 101 in., and height 155 in. Always confirm clearances for garages, storage, and campsites.
The Cornerstone 45w includes a fresh water capacity of gallons, black water tank(s), and lbs of propane capacity-ideal for off-grid weekends.
Many Cornerstone 45w 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 54000 lbs and dry weight of lbs, the Cornerstone 45w 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 4 people comfortably - perfect for couples or small families seeking a lightweight, easy-tow Class A.
The Cornerstone 45w features body construction with sidewalls and 2 axle(s). Its GVWR of 54000 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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