Products > Truck-Boxes--Equipment > Boxes > Saddle Box > Model 123-5-01 Saddle Box, Aluminum, Full Extra Deep, 15.1 cu ft > 123-5-01

Model 123-5-01 Saddle Box, Aluminum, Full Extra Deep, 15.1 cu ft

123-5-01 Boxes - Weather Guard US
123-5-01 Boxes - Weather Guard US123-5-01 Boxes - Weather Guard US
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Model 123-5-01 Saddle Box, Aluminum, Full Extra Deep, 15.1 cu ft


Saddle Boxes are the most popular truck storage option due to ease of installation, maximum bed clearance and legendary durability. The WEATHER GUARD® Aluminum Model 123-5-01 Full-Size Extra Deep Saddle Box features a diamond plate pattern with Black ARMOR-TUF® Powder Coat finish that ensures years of dependability. It has a storage capacity of 15.1 cu ft.


  • Fits all Full-Size pickups with 8 ft beds
  • Tamper-resistant, retracting EXTREME PROTECTION® Lock helps protect against break-ins
  • 90 degree cover opening for easy access
  • Automotive-style rotary latch features smooth one-touch opening
  • Full weather seal protects against the elements
  • 12 volt access for electrical up-fits
  • Level storage area secures a 48 inch level
  • Includes powder coated steel divider tray
  • Black ARMOR-TUF® Powder Coat finish ensures years of dependability
  • Limited lifetime warranty ensures unparalleled quality


FeatureSize / Details
StyleSaddle Box
Approx. Product Height24in
Approx. Product Length71-1/2in
Approx. Product Width20-1/4in
Approx. Cu. Ft. Per Unit15.1
ColorGloss Black
Powder Coat FinishYes
Latch MechanismAutomotive Dual-Stage Rotary
Key AlikeOn Request
Reinforced Loop StrikerYes
Weather ResistanceUltimate
Weather StripMemory Resistant D-Shaped Ribbed
WarrantyLimited Lifetime
Bed Style - Style SideYes
Electrical AccessYes
Side Box OptionsYes
Vehicle Type, FullYes
Weather SealYes
Chevrolet Silverado 1500Yes
Chevrolet Silverado 2500/3500Yes
Ford F-150Yes
Ford F-250/F-350Yes
GMC Sierra 1500Yes
GMC Sierra 2500/3500Yes
Nissan TitanYes
RAM 1500Yes
Toyota TundraYes
RAM 2500/3500Yes
Bed Length 6 ft 6 inYes
Bed Length 6 ft 7 inYes
Bed Length 7 ftYes
Bed Length 8 ftYes

Package Contents

Part NumberQtyDescription



Additional Saddle Box Models

Model No.Approx. Product HeightApprox. Product LengthApprox. Product WidthApprox. Cu. Ft. Per UnitMaterialColorBuy Online
116-5-0218-1/2in71-1/2in27-1/2in15.3SteelGloss Black
117-5-0218-1/2in71-1/2in27-1/2in15.3AluminumGloss Black
117-52-0218-1/2in71-1/2in27-1/2in15.3AluminumTextured Matte Black
120-5-0115-7/8in71-1/2in20-1/4in8.8SteelGloss Black
121-5-0115in71-1/2in20-1/4in8.8AluminumGloss Black
121-52-0115in71-1/2in20-1/4in8.8AluminumTextured Matte Black
123-5-0124in71-1/2in20-1/4in15.1AluminumGloss Black
126-5-0218-1/2in71-1/2in20-1/4in11.3SteelGloss Black
127-5-0218-1/2in71-1/2in20-1/4in11.3AluminumGloss Black
127-52-0218-1/2in71-1/2in20-1/4in11.3AluminumTextured Matte Black
131-5-0118-1/2in66in20-1/4in8.7AluminumGloss Black
137-5-0118-1/2in62in20-1/4in8.9AluminumGloss Black
154-5-0113-1/4in62in20-1/4in6.4AluminumGloss Black
Rated 5 out of 5 by from Indestructible toolbox I bought this toolbox going on four years ago. About three years ago I had a major rollover accident that resulted in a few broken vertebrae. In the accident this toolbox got thrown from the truck at substantial speeds and some how miraculously managed to remain closed and locked with my few thousand dollars of tools inside and only received one large dent in a crease on the lid and a couple broken spot welds on the inside of the lid. I still use that same toolbox to this day. I am a carpenter so it gets daily abuse and still functions properly. From that day I became a die-hard Weather Guard fan and refuse to purchase any other toolbox.
Date published: 2018-05-31
Rated 5 out of 5 by from Great box Best boxes on the market, I have had the full size box in low profile and regular on my old Silverado as well as the low profile 131-5-01 on my Tacoma. I doubt I will ever buy another brand. More storage than others, better locks, much better mounts, pre-grommeted for 12V. Just wish this size came with a small parts organizer like the full size version does.
Date published: 2018-10-14
Rated 1 out of 5 by from Rusts very quickly My first box for my F250 Super Duty had some paint drip issues, very poor paint job, bubbles on the top lid. company then sent a second box, rivets were very evident. Shows considerable rust after a year and a half. i'm the original owner and filed a complaint, I've only heard crickets. Manufacturer will not stand by there product. Limited Lifetime warranty is bogus, every corner where there is a weld has rust. . Second, the lock on one of the sides is faulty as well.
Date published: 2018-07-27
Rated 4 out of 5 by from Get a universal toolbox mounting kit Impossible to install on a 2018 F-150 with supplied hardware. There is no room to get your hand under the box to hold the brackets. I purchased a gripe-right universal toolbox mounting kit to allow the installation. Consider an upgrade to your hardware. Otherwise, great addition.
Date published: 2018-06-08
Rated 1 out of 5 by from Worthless tool box!!! The box is great in size but the downside is that you are able to unlock the locks with a different cut key from another tool box. I found out the hard way. All my tools were stolen over night. i can confirm this because my company has 10 trucks with the same tool box and you are able to unlock the locks with all the keys (all keys have a different cut).
Date published: 2018-08-17
Rated 1 out of 5 by from Disapointed Just bought a 127-0-02 BOX WENT WITH THE BEST !! I thought between the rear window and the box the box isnt diamond plated looks so cheap on my new truck very disapointed
Date published: 2018-10-09
Rated 2 out of 5 by from Closing Mechanism failure I bought this online and had touble shutting the lid and it staying shut. I watched how to fix it from the website and that did not work. Hoping the company calls me back to fix the problem
Date published: 2018-09-21
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Will this tool box fit new 2019 Chevy Silverado 

Asked by: Hatcole
Model 127-5-02 will fit a 2019 Chevy Silverado.
Answered by: Customercare
Date published: 2018-10-13

Do you have tool boxes for trucks models Toyota,Mazda,Navara model years 2008 - 2018

Asked by: Sami
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: 2018-10-04

What is the maximum size Saddle box that will fit into/onto and 2009 1500 Silverado (Standard Bed)? Asking due to the chart causing me confusion.

Asked by: Nathan1oo
For the 2009 1500 Silverado, you can go with the following Saddle Box:
Answered by: Customercare
Date published: 2018-10-04

What model black low profile full size box would you recommend for my Toyota 2018 Tundra?

Asked by: Teddy
Product Model 121-5-01 will not work. I would recommend the model 131-5-01.
Answered by: Customercare
Date published: 2018-09-28

I am interested in the 121-52-01 box.  Can you send me the dimensions of the side profile of the box with the lid fully opened?  I would like to see how close to my truck cab I can get the tool box.

Asked by: Lauren
You will need to allow 3" for your box lid to open.
Answered by: Customercare
Date published: 2018-09-28

With a width of 66" does this box extend past the side of the truck ?  All the other boxes for a 2018 canyon (diesel) are 62" . 

Asked by: Rob 70
Product Model 131-5-01 has a better fit on the side rails of the truck. Although the 62" ones are also recommended, According to the following Cargo Box Width is 57.80". According to the dimensions, it will hang over some. Although, customer's prefer how it fit on the side rail more than the 62" one does.
Answered by: Customercare
Date published: 2018-09-20

Is it true about any key (from another person) being able to unlock any other boxes?

Asked by: Rinati75
That is not true.
Answered by: Customercare
Date published: 2018-09-19


Asked by: FRANK1
We don't have a published duty rating.
Answered by: Customercare
Date published: 2018-08-30
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