2021 Aliner Exp Base Specs
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Can Your Vehicle Tow This?
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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.
Towing & Dimensions
| Specs | Value | Buy | Shop All | Top 5 |
|---|---|---|---|---|
| GVWR | 3500 lbs | - | ||
| Dry Weight | 1850 lbs | - | ||
| Hitch Weight | 240 lbs | - | - | - |
| Length | 216 in | - | ||
| Width | 84 in | - |
Specs
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GVWR
3500 lbs
Dry Weight
1850 lbs
Hitch Weight
240 lbs
Length
216 in
Width
84 in
Towing & Dimensions Best Sellers
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Electrical & Solar
| Specs | Value | Buy | Shop All | Top 5 |
|---|---|---|---|---|
| Battery Converter Amps | 35 | - | ||
| Shore Power | 30 Amps | - | ||
| Battery Type | 12V Lead-Acid | Top 5 | ||
| Solar Pre-Wired | Optional | - | ||
| Inverter | Optional | - |
Specs
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Battery Converter Amps
35
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 | - | ||
| Fresh Water Tank Capacity | 11 gal | - | ||
| Number Of Propane Tanks | 2 | - |
Specs
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Number Of Fresh Water Holding Tanks
1
Number Of Gray Water Holding Tanks
1
Fresh Water Tank Capacity
11 gal
Number Of Propane Tanks
2
Tank Capacities Best Sellers
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Tires & Wheels
| Specs | Value | Buy | Shop All | Top 5 |
|---|---|---|---|---|
| Front Brake Type | Not Applicable | - | - | - |
| Rear Brake Type | Electric Drum | - | ||
| Rear Tire | 14 Inch Full Spec | - | - | - |
| Rear Wheel Diameter | 14 | - | - | - |
| Spare Tire Location | Exterior Mounted | - | ||
| Wheels Composition | Aluminum | - | - | - |
Specs
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Front Brake Type
Not Applicable
Rear Brake Type
Electric Drum
Rear Tire
14 Inch Full Spec
Rear Wheel Diameter
14
Spare Tire Location
Exterior Mounted
Wheels Composition
Aluminum
Tires & Wheels Best Sellers
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Heating & Cooling
| Specs | Value | Buy | Shop All | Top 5 |
|---|---|---|---|---|
| Air Conditioning Type | Automatic | - | ||
| Heater Type | Automatic | - |
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Air Conditioning Type
Automatic
Heater Type
Automatic
Heating & Cooling Best Sellers
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Living Room / Bedroom(s)
| Specs | Value | Buy | Shop All | Top 5 |
|---|---|---|---|---|
| Living Area Location | Rear | - | - | - |
| Number Of Convertible / Sofa Beds | 2 | - | - | - |
| Number Of Sofas | 1 | - | - | |
| Reclining Sofa | No | - | ||
| Sofa Material | Cloth | - | - | - |
Specs
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Living Area Location
Rear
Number Of Convertible / Sofa Beds
2
Number Of Sofas
1
Reclining Sofa
No
Sofa Material
Cloth
Living Room / Bedroom(s) Best Sellers
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Kitchen / Dining
| Specs | Value | Buy | Shop All | Top 5 |
|---|---|---|---|---|
| Kitchen / Living Area Flooring Type | Vinyl | - | - | - |
| Kitchen Location | Center | - | - | - |
| Kitchen Table Configuration | Bench Seats | - | - | - |
| Number Of Oven Burners | 2 | - | - | - |
| Refrigerator Power Mode | Electric / Propane | - | - | - |
| Refrigerator Size | Compact | - | - | - |
Specs
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Kitchen / Living Area Flooring Type
Vinyl
Kitchen Location
Center
Kitchen Table Configuration
Bench Seats
Number Of Oven Burners
2
Refrigerator Power Mode
Electric / Propane
Refrigerator Size
Compact
Bathroom
| Specs | Value | Buy | Shop All | Top 5 |
|---|---|---|---|---|
| Toilet Type | Cassette (With Curtain / Walls) | Top 5 |
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Toilet Type
Cassette (With Curtain / Walls)
Bathroom Best Sellers
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Exterior
| Specs | Value | Buy | Shop All | Top 5 |
|---|---|---|---|---|
| Leveling Jack Type | Front Manual / Rear Manual | - | - | - |
| Number Of Axles | 1 | - | - | - |
| Sidewall Construction | Fiberglass | - | - | - |
| Number of Doors | 1 | - | ||
| Body Material | Aluminum | - | - | - |
Specs
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Leveling Jack Type
Front Manual / Rear Manual
Number Of Axles
1
Sidewall Construction
Fiberglass
Number of Doors
1
Body Material
Aluminum
Exterior Best Sellers
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Options
| Specs | Value | Buy | Shop All | Top 5 |
|---|---|---|---|---|
| Air Conditioning Prewiring | Yes | - | ||
| Battery Power Converter | Yes | - | - | - |
| Bunkhouse | No | - | - | - |
| Cable Prewiring | Yes | - | - | - |
| Heat Prewiring | Yes | - | - | - |
| Interior Wood Finish | Yes | - | - | - |
| Metallic | No | - | - | - |
| Overhead Fan | No | - | - | |
| Phone Prewiring | No | - | - | - |
| Refrigerator | Standard | - | - | - |
| Satellite Prewiring | No | - | - | - |
| Sliding Glass Door | No | - | - | - |
| TV Antenna Prewiring | No | - | - | - |
| Wallpaper | Yes | - | - | - |
| Washer / Dryer Prewiring | No | - | - | - |
Specs
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Air Conditioning Prewiring
Yes
Battery Power Converter
Yes
Bunkhouse
No
Cable Prewiring
Yes
Heat Prewiring
Yes
Interior Wood Finish
Yes
Metallic
No
Overhead Fan
No
Phone Prewiring
No
Refrigerator
Standard
Satellite Prewiring
No
Sliding Glass Door
No
TV Antenna Prewiring
No
Wallpaper
Yes
Washer / Dryer Prewiring
No
Quick Overview
| Specs | Value | Buy | Shop All | Top 5 |
|---|---|---|---|---|
| Parent Company | Aliner | - | - | - |
| Year | 2021 | - | - | - |
| Make | Aliner | - | - | - |
| Display Name | Expedition Base | - | - | - |
| Class | Expandable Trailer | - | - | - |
| Max Sleeping Count | 4 | - | - | - |
Specs
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Parent Company
Aliner
Year
2021
Make
Aliner
Display Name
Expedition Base
Class
Expandable Trailer
Max Sleeping Count
4
Essential Upgrades for the 2021 Aliner Exp Base
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 expandable trailer.
Tow-Ready Score
10.0/10
Base Score
5.0
Spec-based adjustments
Based on Expandable Trailer class averages
+5.0
Final Tow-Ready Score
10.0
Living Space & Layout
5.3/10
Base Score
5.0
Spec-based adjustments
Based on Expandable Trailer class averages
+0.3
Final Living Space & Layout
5.3
Comfort & Features
4.5/10
Base Score
5.0
Spec-based adjustments
Based on Expandable Trailer class averages
-0.5
Final Comfort & Features
4.5
Storage Space
5.0/10
Base Score
5.0
Spec-based adjustments
Based on Expandable Trailer class averages
+0.0
Final Storage Space
5.0
Off-Grid & Campsites
7.5/10
Base Score
5.0
Spec-based adjustments
Based on Expandable Trailer 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 2021 Aliner Exp Base, ensure your vehicle's rated tow capacity exceeds its GVWR of 3500 lbs. With a dry weight of 1850 lbs and hitch weight of 240 lbs, most midsize trucks and SUVs can tow it comfortably with a 10-20% safety margin.
This Expandable Trailer has a dry weight of 1850 lbs and a GVWR of 3500 lbs, giving a payload capacity of lbs for gear, water, and supplies.
The approximate dimensions are length 216 in., width 84 in., and height in. Always confirm clearances for garages, storage, and campsites.
The Exp Base includes a fresh water capacity of gallons, black water tank(s), and lbs of propane capacity-ideal for off-grid weekends.
Many Exp Base 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 3500 lbs and dry weight of 1850 lbs, the Exp Base 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 Expandable Trailer.
The Exp Base features body construction with sidewalls and 1 axle(s). Its GVWR of 3500 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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