This is ARB's full guard rail for the BASE Rack, sized for 49" x 51" platforms. The rail runs the complete perimeter of the rack, all four sides, standing above the deck on cast aluminum upright clamps so cargo has a hard edge to sit against instead of relying on straps alone. It is a fully welded rail assembly with cast aluminum corner caps, finished in the same Integrit textured black powder coat as the rack, and it fastens to the BASE Rack with torx M6 and M8 bolts and nyloc nuts. Full containment on every edge. This is the option for loose or irregular cargo that you want boxed in rather than merely stopped at the front.
The guard rail bolts to an ARB BASE Rack, not to a vehicle. It clamps onto the dovetail extrusion around the rack perimeter with some extra fixing points at the rack corners, so you need a BASE Rack platform already fitted before this rail has anything to mount to. It is sized to one specific rack footprint and will not span a different size deck, and it is not a standalone roof rail for factory crossbars.
What's Included:
Full Guard Rail assembly, fully welded, sized for 49" x 51" BASE Racks
Cast aluminum corner caps
Cast aluminum upright clamps
Torx M6 and M8 fasteners with nyloc nuts
ARB fitting instructions
Features
Sized To One Rack Footprint This rail is cut for 49" x 51" BASE Rack platforms. Guard rails are not adjustable, so matching the rail to your exact deck size is the whole job of picking the right part number.
Cast Aluminum Corners And Clamps Cast aluminum corner caps join the welded rail sections and cast aluminum upright clamps carry the rail off the deck, which is what lets the rail take a sideways shove from a shifting load.
Clamps Anywhere On The Dovetail The uprights clamp into the BASE Rack dovetail extrusion rather than bolting through fixed holes, with additional fixing points at the rack corners, so the rail lines up without drilling anything.
Proper Fasteners, Not Sheet Metal Screws ARB supplies torx M6 and M8 bolts with nyloc nuts. Nyloc means the fasteners stay torqued through corrugations instead of walking loose over a season.
Covers All four sides of the rack Full containment on every edge. This is the option for loose or irregular cargo that you want boxed in rather than merely stopped at the front.
Matches The Rack Finish Integrit textured black powder coat, the same finish ARB puts on the BASE Rack platform, so the rail reads as part of the rack rather than an aftermarket addition.
Fitment & Compatibility
Application
Fit
ARB BASE Rack platform, 49" x 51" (1255mm x 1285mm)
✓ Fits
ARB BASE Rack platform of any other size
✗ Does not fit. Guard rails are cut to one footprint
Vehicle with no ARB BASE Rack fitted
● Cannot be installed
ARB Classic steel or alloy roof rack
✗ Does not fit. Different rack system
Factory crossbars or a third party channel rack
✗ Does not fit
Rear folding rooftop tent deploying over the back
● Check clearance, this rail covers the rear edge
Fit guidance: Guard rails are chosen by the size of the BASE Rack they sit on, not by vehicle. Confirm your platform is 49" x 51" (1255mm x 1285mm) before ordering; a rail cut for another deck will not line up on the dovetail.
Specifications
Model: ARB BASE Rack Full Guard Rail
Part Number: 1780180
Rail Type: Full Guard Rail
Suits BASE Rack Size: 49" x 51" (1255mm x 1285mm)
Coverage: All four sides of the rack
Material: Extruded aluminum rail with cast aluminum corner caps and upright clamps
Finish: Integrit textured black powder coat
Color: Black
Fasteners: Torx M6 and M8 with nyloc nuts
Product Weight: 11.5 lb (5.2 kg)
Shipping Weight: 15 lb
Attachment: ARB BASE Rack dovetail extrusion plus rack corner fixing points
Warranty: 3 years
UPC: 9332018077783
Installation
Type: Clamps to the ARB BASE Rack dovetail extrusion · Time: 30-60 minutes · Tools: Torx drivers, metric sockets for M6 and M8, torque wrench · Difficulty: Easy
No drilling. The upright clamps locate on the dovetail and the corner caps pick up the rack corner fixing points, then the torx bolts and nyloc nuts are torqued to ARB's figures. Work from one corner around so the rail sits square before final tightening.
Resources
Everything you need for your ARB BASE Rack Full Guard Rail, 49" x 51", in one place.
ARB Fitting Instructions (PDF), the manufacturer's step-by-step guide covering mounting, included hardware and adjustment.
Warranty, Shipping & Returns
Warranty. ARB covers this product with a 3-year, unlimited mileage warranty through ARB North America (Air Locker Inc., Auburn, WA). ARB's own schedule puts wear items such as bushes, bearings, shackles, pins and U-bolts on a shorter 1-year term. We describe ARB's warranty exactly as ARB publishes it rather than restating or extending it, and it is honored through any ARB-authorized dealer in the US.
Free shipping. This item ships free to the lower 48 states and typically arrives in 3 to 7 business days.
Inspect on delivery. Please inspect your order on arrival. If anything is damaged or missing, contact us right away and we will make it right.
About ARB
ARB started in 1975 when Tony Brown came home from a Cape York trip convinced that the four wheel drives crossing Australia deserved better equipment than anything then on sale. He began hand building roof racks and bull bars in his Melbourne driveway, and the initials of Anthony Ronald Brown ended up on what is now the largest 4x4 accessory manufacturer and distributor in the southern hemisphere. The engineering campus at Kilsyth in Victoria still designs and tests the load carrying, air and recovery equipment the brand is known for, and ARB now runs offices in the USA, Europe and the Middle East with an export network reaching more than 100 countries.
In North America ARB trades as Air Locker Inc. from Auburn, Washington, and backs its products with a published US and Canada warranty program. Prestige Truck is an authorized ARB dealer. Every rack, rail and bracket we ship is genuine US market stock covered by ARB North America's warranty and supported by ARB's own fitting instructions.
The Dovetail Mounting System
ARB's own short walkthrough of the dovetail extrusion that makes the BASE Rack what it is: a clamp that drops in anywhere along the rail instead of a channel you have to thread accessories onto from one end.
It is the clearest thirty seconds available on why accessories come on and off this rack without disturbing the rest of the load.
The ARB Story
How a Melbourne driveway operation building roof racks and bull bars in 1975 grew into the southern hemisphere's largest 4x4 accessory manufacturer.
Filmed by ARB across its own Australian factories and proving grounds, it is worth seven minutes if you want to know who builds the gear before you bolt it to your roof.
Frequently Asked Questions
Straight answers on specs, fit and support
Which guard rail do I need for my rack?
Match the rail to your BASE Rack footprint. This one is cut for 49" x 51" (1255mm x 1285mm) platforms. Rails are not adjustable and will not stretch or trim to another size, so check your deck dimensions before ordering.
What is the difference between quarter, three quarter, full and trade rails?
A quarter rail covers the front edge only. A three quarter rail covers the front and most of both sides but leaves the rear open. A full rail runs the whole perimeter. A trade rail runs both long sides with the front and rear open for sliding long loads on and off.
Does it come with everything to fit it?
Yes for the rail itself: the welded rail sections, cast aluminum corner caps, upright clamps and the torx M6 and M8 fasteners with nyloc nuts are all supplied, along with ARB's fitting instructions. What is not supplied is the BASE Rack platform it mounts to.
Will it fit my factory roof bars?
No. It clamps into the ARB BASE Rack dovetail extrusion and picks up BASE Rack corner fixings. There is nothing on a factory crossbar or a channel style rack for it to attach to.
Do I need to drill anything?
No. The uprights clamp onto the dovetail rail and the corners use existing BASE Rack fixing points, so the rack is not modified and the rail can come off again later without leaving holes.
What is the warranty?
Three years unlimited mileage through ARB North America, honored through authorized dealers like us. Keep your invoice and register with ARB after purchase.
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