Brinkley G 3520 & G 4120 Toy Hauler Review & Pricing Guide

What Makes the Brinkley G3520 & G4120 Different?

If you’ve been shopping toy hauler fifth wheels for a while, you’ve probably noticed a pattern: huge party sofas, okay storage, “pretty good” power, and a garage that a lot of owners don’t actually use for toys.

The Brinkley G3520 and G4120 flip that script.

• They keep the luxury fifth wheel living room, bedroom, and bathroom feel.
• They give you a flex garage that can be a toy hauler, kids’ room, office, or three-season lounge.
• And they layer on serious power and running gear:
  • 200Ah lithium battery (standard)
  • ~800W roof solar
  • 3000W Victron smart inverter
  • Triple A/C with heat pumps + fireplace + propane furnace
  • Disc brakes and H-rated tires on a Gen-Y certified chassis

In short: this is a toy hauler for people who want a high-end fifth wheel first, with a garage that can adapt as life changes.

https://www.youtube.com/watch?v=1riRkT-y_qA

Table of Contents

What Makes the Brinkley G3520 & G4120 Different?

Brinkley G3520 vs G4120: What’s the Actual Difference?

A “Toy Hauler” Living Room That Feels Like a Luxury Fifth Wheel

Kitchen & Storage: Massive Counter Space and Smart Pantry Design

Heating, Cooling & Power: Built for Real-World Camping

Bathroom & Bedroom: Residential Comfort, Full-Time Friendly

Garage / Flex Room: Not Just for Toys Anymore

Exterior & Chassis: Brakes, Suspension, Frame & Solar

Who the Brinkley G3520 & G4120 Are (and Aren’t) For

Pros & Potential Cons of the G3520/G4120

Frequently Asked Questions (FAQ) About the Brinkley G3520 & G4120

Brinkley G3520 vs G4120: What’s the Actual Difference?

Mechanically and cosmetically, the G3520 and G4120 are almost identical. The big change is the garage length.

• Brinkley G3520
  • Garage: up to 11 ft
  • Same living room, kitchen, bath, and bedroom as the 4120
  • Better if you want more maneuverability and don’t need a huge toy bay
• Brinkley G4120
  • Garage: up to 17 ft (about 6 ft longer than the 3520)
  • Same living/bed/bath as the 3520
  • Better for bigger toys, larger bunk setups, or more “kids’ room / hangout” space

Think of it this way:

Choose the G3520 if you want a more compact, lighter model with a flex room.
Choose the G4120 if your toys (or your kids) need all the space they can get.

WHAT IS THE COST OF A MODEL G 3520
& MODEL G 4120

G 3520 MSRP $209,567 | G 4120 MSRP $215,896

The Manufacturer’s Suggested Retail Price (MSRP) is the price that the manufacturer recommends for their product. RV dealerships use this figure as a starting point to set their final prices. While some dealer prices may be higher than the MSRP, others might be lower.

The Minimum Advertised Price (MAP) is the lowest price a manufacturer permits a retailer to publicly display for their product. You might see phrases like “price too low to show” on some websites, indicating that the dealership’s price is lower than the MAP, but they can’t advertise it without direct contact.

For Brinkley RVs, the advertised price must match their MSRP, meaning dealers must display this price even if they can offer a lower one. By contacting a dealership directly, you can often get a more precise and potentially lower estimate.

A “Toy Hauler” Living Room That Feels Like a Luxury Fifth Wheel

Most toy hauler living rooms put a big four-seat party couch on the campsite wall. It’s fun, but not great for conversation and direct TV viewing, you’re constantly twisting your neck 90 degrees.

In the G3520 and G4120, Brinkley basically took the classic Model G 3500 layout and rotated the entire living room 90 degrees:

The classic four-seat party sofa is now two separate double recliners:

• You still get four reclining seats
• At least one set has true direct-view entertainment
• The floorplan feels more social, you can talk to people without twisting your neck

Other living room highlights:

• Both slide-outs are floor-flush, so you’re not stepping over raised slide floors.
• Neutral, modern interior, which means:
  • Easy to decorate with your own colors, pillows, rugs, and art
  • No need to repaint cabinetry to make it feel like “you”

You also still getting that electric fireplace for ambiance and electric heat, plus tons of seating with a televator view that actually makes sense for full-time living, not just weekend getaways.

Kitchen & Storage: Massive Counter Space and Smart Pantry Design

If you cook a lot, this is where the G3520 and G4120 really separate themselves from most toy haulers.

Island-to-Peninsula “Bridge” Counter

Instead of just an island in no man’s land, Brinkley created a solid-surface countertop “bridge” that connects the island to the side counter (think island + peninsula):

• Huge, continuous prep space
• Waterfall solid-surface edge that looks residential and feels high-end
• Still leaves room for traffic flow at the entry door

Pantry & Cabinet Storage

The pantry setup is a big deal in these rigs:

• Deep pantry with a foot-activated locking lever so it doesn’t swing while traveling
• Lower section uses pull-out drawers so the storage comes to you
• Upper shelves are adjustable and removable
• Slide depth is fully used, double-deep storage instead of wasted space
• One side is slightly thinner, making it perfect for:
  • A broom, or a mop
  • Hidden utility closet plus food storage

Add in:

• GE Energy Star residential refrigerator (not just a 12V fridge)
• Bigger-than-average GE Profile 4-burner cooktop so you can legitimately use multiple burners at once
• Convection microwave that can bake, roast, and air-fry
• Deep drawers with dovetail construction throughout

Island Features You Actually Use

The island isn’t just a big block of counter:

• Removable cutting board
• Lower segmented drawer you can reconfigure for larger items
• Dual wastebaskets under a cutout so you can sweep scraps directly into the trash
• Magnetic base down low for pet food and water bowls, a built-in spot for the four-legged family members

Plus, there’s dishwasher prep in the lower cabinet, so adding a compact dishwasher later is straightforward.

Heating, Cooling & Power: Built for Real-World Camping

This is where a lot of toy haulers look flashy but fall short. The G3520 and G4120 quietly pack in systems that make them legit full-time or extended-stay coaches.

Bottom line: you get both electric and propane heat and can run them together to reduce propane burn when you’re on shore power.

Lithium Battery, Solar & Victron Power Gear

From the factory, you get:

• 200Ah lithium battery (standard)
• 800W of roof-mounted solar
• 3000W Victron smart inverter
• DC-to-DC charger between the truck and the coach

Why this matters:

• The residential fridge can run effectively off battery and solar.
• The DC-to-DC charger protects your truck alternator and ensures the lithium house battery charges correctly from the tow vehicle.
• Many brands skip the DC-to-DC charger; Brinkley includes it, which is a huge plus for system longevity and safety.

Flex Fuel Generator & Fuel System

• 5500W flex-fuel generator (runs on gas or propane; you can switch fuel without shutting down)
• Dual 30-gallon fuel cells:
  • One dedicated to the generator
  • One for toys (or you can fill both for extended generator run time and cross-pump as needed)

Add in an onboard air compressor rated to fill the RV’s own H-rated tires (believe it or not, some RVs include compressors that can’t do that), and the G3520/G4120 start to look very serious for boondocking and long-term travel.

Bathroom & Bedroom: Residential Comfort, Full-Time Friendly

Main Bath

The main bath is designed for actual humans, not just brochure photos:

• One-piece fiberglass shower (easier to clean, fewer leak points)
• Built to accept an optional seat, if you want one installed
• Good headroom—comfortable even if you’re around 6’–6’2″
• Recessed medicine cabinet built partly into the wall for better space usage
• Porcelain toilet
• Adjustable shelving and pull-out storage similar to the kitchen

There’s also a half bath in the garage (more on that in the garage section), with:

• A fold-down solid-surface sink
• True medicine cabinet, not just a mirror
• Proper vent fan (critical in a small space, especially on Taco Tuesday 😉) .

Step into the bedroom and you almost forget this is a toy hauler:

• Upgraded, thicker bamboo-style mattress (not the usual “blue death wafer”)
• Motion-sensor toe-kick lighting that shines toward the floor so you’re not blinded at night
• Household + USB outlets on each side of the bed
• Under-bed storage plus:
  • A big dresser
  • Extra drawers for daily-use items

Bedroom

Step into the bedroom and you almost forget this is a toy hauler:

• Upgraded, thicker bamboo-style mattress (not the usual “blue death wafer”)
• Motion-sensor toe-kick lighting that shines toward the floor so you’re not blinded at night
• Household + USB outlets on each side of the bed
• Under-bed storage plus:
  • A big dresser
  • Extra drawers for daily-use items

• Washer/dryer prep in a spacious closet area
• A clever “secret” desk/nook with outlets where you can:
  • Set up a small work-from-the-road desk
  • Use as hidden storage

For full-timers or remote workers, that built-in desk option is a huge win.

Garage / Flex Room: Not Just for Toys Anymore

Brinkley knows that the majority of Model G owners don’t use their rig like a traditional toy hauler. Most people:

• Bring e-bikes or compact toys, or
• Turn the garage into a:
  • Kids’ bedroom
  • Three-season lounge/patio room
  • Office or craft studio

The G3520 and G4120 lean into that reality.

Happy Jack System with Independent Seating

Like most fifth-wheel haulers, you get:

• A Happy Jack bed lift
• Lower sofa/bench seats that can form another bed

What’s unique here:

• Brinkley lets you drop the left or right bench independently
• That gives you more flexible layouts for:
  • Mixed cargo and seating
  • Different kid sleeping setups
  • One side as seating, one side as storage

Tie-Downs & Storage

• Multiple tie-down points across the left, right, and center of the garage
• A built-in cargo box in the dovetail area, often used for:
  • Telescopic ladders (included) to reach:
    • The loft bunk
    • Upper Happy Jack bed

• Power cord storage

Patio Door, Ramp & Safety

• Zero-gravity ramp door that you can lift with one hand
• Can be used as a patio deck
• Three-season patio wall with a central door
• Built-in mesh “puppy savers / baby savers” so pets and toddlers don’t slip through the rails

There’s also a backup camera mount inside the garage:

• You can monitor motorcycles or toys while towing, or
• Set up a kid-monitor camera if the garage is used as a bunk room

And yes, the half-bath in the garage is collapsible, with walls that fold flatter to gain more loading length when needed.

Exterior & Chassis: Brakes, Suspension, Frame & Solar

The G3520 and G4120 aren’t just pretty inside, the running gear is built for big miles and big loads.

Frame, Axles, & Suspension

• Gen-Y certified chassis (heavier, thicker, built to handle the vertical and torsional stress of a Gen-Y style pin box)

• Option to choose fifth-wheel kingpin or gooseneck connection

• Triple-axle setup
• Dexter torsion suspension standard
• Optional true independent suspension

Brinkley also sticks with a single continuous I-beam instead of a complex drop-frame. To recover the storage that’s often lost without a drop frame:

• They use 800 lb-rated slide-out storage trays across the front bays
• Slide-boxes are walkable, and the side ladder mounts mid-ship so you can use the slide roof as the last “step” transition onto the main roof

Tires, Brakes, & Safety

• Uniroyal H-rated tires (16-ply equivalent)
• Disc brakes are now standard on all Model Gs
• TPMS (tire pressure monitoring) factory standard

That’s a serious combo for a rig that’s firmly in diesel dually territory, especially the G4120 with its longer garage and higher potential cargo weight.

Solar & Electrical Bay

The electrical bay is loaded:

• Victron 3000W smart inverter
• Victron solar charge controller
• Victron DC-DC charger
• 200Ah lithium battery standard, with room to add more

There’s also:

• Self-retracting 45 ft power extension cord
• Observation camera suite around the exterior
• Keyless entry door pad
• Rockford Fosgate outdoor speakers for true party mode

And yes, there’s a lockable outdoor beverage fridge so you can:

• Keep drinks cold and outside
• Lock up the good stuff when you are visiting your campground neighbor

Who the Brinkley G3520 & G4120 Are (and Aren’t) For

These rigs are best for:

• Full-time RVers who want luxury fifth-wheel comfort and a multi-use rear room
• Families who need:
  • A kids’ room / teen hangout
  • Extra beds for guests
  • A playroom that doubles as a patio
• Remote workers who want a separate office space
• Toy owners with bikes, side-by-sides, or track toys who also crave a genuinely upscale living space

They are not ideal for:

• Half-ton or single-rear-wheel truck owners: these are heavy rigs solidly in diesel dually territory.
• Shoppers on a tight budget or who only camp a few weekends a year and don’t care about lithium, solar, or independent suspension.

Pros & Potential Cons of the Brinkley G3520 & G4120

Pros

• Luxury fifth wheel feel in a toy hauler layout
• Choice of 11 ft (G3520) or 17 ft (G4120) garage
• Massive kitchen counter space with island-peninsula “bridge”
• Serious power system: lithium, solar, Victron, DC-DC charging
• Triple A/C with heat pumps, fireplace, and propane heat
• Disc brakes, H-rated tires, torsion suspension, and available independent suspension
• Thoughtful details:
  • Pet food station
  • Shoe/fuse “garage” by the door
  • Motion lights, upgraded mattress, built-in desk option
  • Half bath that collapses for more cargo space

Potential Cons

• Requires a diesel dually in most realistic loading scenarios, especially G4120
• Height and length may limit access to some older campgrounds and small sites
• Those who rarely leave full-hookup campgrounds may not fully use the off-grid power advantages
• Upper storage cabinets may require a step stool, great capacity, but not always easy reach

Frequently Asked Questions (FAQ) About the Brinkley G3520 & G4120

What’s the main difference between the Brinkley G3520 and G4120?

The living room, kitchen, bathroom, and bedroom are the same in both models.
The key difference is the garage length:

• G3520: up to 11 ft garage
• G4120: up to 17 ft garage

If you have larger toys or want a bigger bunk/bonus room, pick the G4120. If you want slightly less length and weight, the G3520 may suit you better.

Are the Brinkley G3520 and G4120 good for full-time RV living?

Yes. These models are designed with full-time use in mind:

• Residential-style kitchen with huge counter space and pantry
• Triple A/C with heat pumps, plus fireplace and propane furnace
• Lithium battery, solar, and Victron inverter standard
• Washer/dryer prep, upgraded mattress, and thoughtful storage

For couples or families who want a flexible bonus room in the back, they’re excellent full-time candidates.

The Brinkley G3520 and G4120 aren’t just big toy haulers with versatile garages, they’re luxury fifth wheels with a bonus room that happens to have a ramp door.

Whether you’re hauling e-bikes, building a bunk space for your kids, working remote, or just wanting a space that can change with your life, these two floorplans give you room to grow without sacrificing comfort, storage, or real-world performance.