Products > Truck-Boxes--Equipment > Boxes > DEFENDER Series > DEFENDER SERIES 300301-9-01 Lo-Side Box 72 x 16.7 x 12.9 Uncoated > 300301-9-01

DEFENDER SERIES 300301-9-01 Lo-Side Box 72 x 16.7 x 12.9 Uncoated

300301-9-01 Boxes - Weather Guard US
300301-9-01 Boxes - Weather Guard US300301-9-01 Boxes - Weather Guard US
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DEFENDER SERIES 300301-9-01 Lo-Side Box 72 x 16.7 x 12.9 Uncoated


The 5.2 cu ft WEATHER GUARD® DEFENDER SERIES™ Model 300301-9-01 Lo-Side Box provides Professional Protection. This new lo-side box provides a tamper-resistant push-button lock, steel reinforced looped strikers, D-shaped ribbed weather stripping and heavy-duty four-piece welded aluminum box construction. It also comes with a seven year warranty.


  • Delivers heavy-duty security with a dual stage rotary latch and a reinforced hook-loop striker
  • Provides professional durability with four-piece welded construction putting strength where it is needed most and black powder coat protection on black truck boxes
  • Classic Weather Resistance from full weather seal with D-shaped ribbed weather stripping
  • Tamper-resistant Push Button Locks - drill resistant through key hole
  • Heavy-Duty pry resistance with C-channel reinforced welded lid construction and reinforced front body panel
  • Dual Gas Strut supported lid with Protective Sleeves
  • The one-touch push button locks pop open the box easily even when your hands are full of tools
  • Special crimp-free mounting brackets and heavy-duty powder-coated 1/4 in thick steel support Legs are included to easily secure the box to the truck bed
  • Welded aluminum channels keep the cover closing evenly to make sure that the cover is fully latched
  • Fits Full-size Pick-up Trucks
  • Seven Year Warranty


FeatureSize / Details
StyleLo-Side Box
Approx. Product Height12-7/8in
Approx. Product Length72-1/8in
Approx. Product Width16-5/8in
Approx. Cu. Ft. Per Unit5.3
SecurityHeavy Duty
Latch MechanismLatch
Lock SystemPush Button
Key AlikeOn Request
Reinforced Loop StrikerYes
Weather ResistanceClassic
Weather StripD-Shaped Ribbed
Warranty7 Year
Bed Style - Style SideYes
Side Box OptionsYes
Vehicle Type, CompactYes
Vehicle Type, FullYes
Weather SealYes
Chevrolet Silverado 1500Yes
Chevrolet Silverado 2500/3500Yes
Dodge DakotaYes
Ford F-150Yes
Ford F-250/F-350Yes
Ford RangerYes
GMC Sierra 1500Yes
GMC Sierra 2500/3500Yes
Nissan FrontierYes
Nissan TitanYes
RAM 1500Yes
Toyota TundraYes
RAM 2500/3500Yes
Bed Length 6 ft 4 inYes
Bed Length 6 ft 6 inYes
Bed Length 6 ft 7 inYes
Bed Length 6 ft 9 inYes
Bed Length 7 ftYes
Bed Length 8 ftYes

Package Contents

Part NumberQtyDescription



Additional DEFENDER Series Models

Model No.StyleApprox. Product HeightApprox. Product LengthApprox. Product WidthApprox. Cu. Ft. Per UnitColorBuy Online
300104-53-01Saddle Box18-3/16in61-7/8in19-5/8in9.5Black
300104-9-01Saddle Box18-3/16in61-7/8in19-5/8in9.5Uncoated
300105-53-01Saddle Box17-11/16in71-3/8in19-5/8in10.7Black
300105-9-01Saddle Box17-11/16in71-3/8in19-5/8in10.7Uncoated
300106-53-01Saddle Box16-3/16in71-3/8in19-5/8in9.5Black
300106-9-01Saddle Box16-3/16in71-3/8in19-5/8in9.5Uncoated
300207-53-01Cross Box17-3/4in71-1/2in19-5/8in10.7Black
300207-9-01Cross Box17-3/4in71-1/2in19-5/8in10.7Uncoated
300300-53-01Lo-Side Box12-7/8in60-1/8in16-5/8in4.4Black
300300-9-01Lo-Side Box12-7/8in60-1/8in16-5/8in4.4Uncoated
300301-53-01Lo-Side Box12-7/8in72-1/8in16-5/8in5.3Black
300301-9-01Lo-Side Box12-7/8in72-1/8in16-5/8in5.3Uncoated
300302-53-01Hi-Side Box16-1/16in60-1/8in13-1/3in6.7Black
300302-9-01Hi-Side Box16-1/16in60-1/8in13-1/3in6.7Uncoated
300303-53-01Hi-Side Box16-1/16in90-1/8in13-1/3in10Black
300303-9-01Hi-Side Box16-1/16in90-1/8in13-1/3in10Uncoated
300304-53-01Lo-Side Box12-7/8in46-5/8in16-5/8in3.3Black
300304-9-01Lo-Side Box12-7/8in46-5/8in16-5/8in3.3Uncoated
300401-53-01All Purpose Chest19-1/3in50-1/4in19-5/8in9.3Black
300401-9-01All Purpose Chest19-1/3in50-1/4in19-5/8in9.3Uncoated
300500-53-01Underbed Box193619in7.1Black
300500-9-01Underbed Box19in3619in7.1Uncoated
300501-53-01Underbed Box19in48in19in9.5Black
300501-9-01Underbed Box19in48in19in9.5Uncoated
302105-53-01Saddle Box17-11/16in71-3/8in19-5/8in10.7Black
302105-9-01Saddle Box17-11/16in71-3/8in19-5/8in10.7Uncoated
Rated 3 out of 5 by from Little disappointed Bought this and installed it yesterday. The lid had 3- good size dents in it so I got a discount. Anyway the hardware was so bad, the bolts didn’t match the clamp down bolt holes. It was impossible to tighten down even with wd 40. So I ended up drilling as opposed to going and buying more parts. Very disappointed! Inside the latch, there is a plate on each side, they are both out of place! Just really disappointed in the craftsmanship of this weatherguard. I had a few and there just seems to be something wrong here. Anyway hopefully no one else will have these problems I’ve had.
Date published: 2018-06-02
Rated 1 out of 5 by from Junk Weather gaurd needs to take their name off this before it ruins their reputation. This is essentially the "competetors" box that everyone gets a weather guard to get away from. The lid is flimsy and the lock takes a while to figure out. It should not be called a weather guard.
Date published: 2018-05-20
Rated 1 out of 5 by from Poorly made Not a $500.00 box. Weld burns all around the outside of the box and the lower lid cylinder mount on one side wobbles as you move the lid up and down. I bought a Weather Guard thinking it was better built than less expensive brands. Simply not the case.
Date published: 2018-08-04
Rated 2 out of 5 by from Disappointing- defender of profit margin series I have bought several Weathergaurd boxes throughout the years. It is obvious they redesigned and removed everything that use to make them great.
Date published: 2018-08-10
Rated 1 out of 5 by from Broken weld I just recieved this box, and it came with broken weld
Date published: 2018-07-13
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Asked by: dreyer2007
The Underbed box does not come with the mounting hardware. You will have to get with an installer, to help with your installation.
Answered by: Customercare
Date published: 2018-09-20

What is the depth that will be inside the bed. From the bed rail to the bottom of the box? I Only have 9"

Asked by: Charlie
For model 300301-53-01, the measurement that will be inside the bed is approximately 7.1".
Answered by: Customercare
Date published: 2018-09-05

Where can we buy with out going on line

Asked by: Donley
To find a distributor in your area, please go to the following link. Input your zip code and the distributors will be listed:
Answered by: Customercare
Date published: 2018-08-15

Is this black finish a gloss or matte?

Asked by: B OZ
Product DEFENDER SERIES 300401-53-01 Universal Chest Box is a Matte Finish.
Answered by: Customercare
Date published: 2018-07-24

Can I get the exact outside dimensions on this box please

Asked by: Tyson
For the outside dimensions of product DEFENDER SERIES 300500-53-01 Underbed Box 36 x 19 x 19 Black are: Product Height 19 Product Length 36 Product Width 19in
Answered by: Customercare
Date published: 2018-07-24

I'm trying to order replacement keys and locks

Asked by: frank
Please contact Customer Care at 888-523-3371 Monday through Friday from 8:00 AM to 5:00 PM EST.
Answered by: Customercare
Date published: 2018-07-20

Can I use this one in a 2006 Toyota Tundra acces cab short bed?

Asked by: Catlos
Product DEFENDER SERIES 300104-53-01 Compact Saddle Box is not recommended for the 2006 Toyota Tundra access cab short bed.
Answered by: Customercare
Date published: 2018-07-20

Does this box fit a 2007 Toyota Tacoma prerunner?

Asked by: Toby
For fit-up of Product DEFENDER SERIES 300104-53-01 Compact Saddle Box for your 2007 Toyota Tacoma. Please contact Customer Care at 888-523-3371 Monday through Friday from 8:00 AM to 5:00 PM EST. Please provide your bed length.
Answered by: Customercare
Date published: 2018-07-20
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