Exterior Components› Car and Truck Covers

Merritt Aluminum Products Company

UNDERBODY TOOLBOX 24X233/16X48 ALL SMOOTH DOUBLE DOOR SSERIES

$1,745.50

SKU: M0CX 3603

In Stock
In Stock
Ships by Jun 9
Free Shipping
Non-Returnable Item
INSTALL DIFFICULTY
DIY PRO SHOP

Easy — 1–2 hours

Description

Merritt underbody boxes are engineered from high-strength, corrosion-resistant aluminum and reinforced with lap-joint corner welds, providing greater structural integrity. This ensures long service life in harsh environments. Featuring automotive-grade perimeter seals, stainless steel T-handle locking latches, and a full stainless piano hinge, these boxes are designed to keep water, dust, and debris out while maintaining reliable security. The internal track system allows for add-ons such as shelves and lanyards for customization.

Fitment

Fitment Guaranteed

Don’t gamble
on fit.

Log your build in the MOTORMIA app and we’ll guarantee this part fits your exact setup — or your money back, return shipping covered.

Available on iOS & Android

Specifications

BrandMerritt Aluminum Products Company
Part NumberM0CX 3603

Videos

How to install a Merritt side step tool box on your semi truck frame rail

How to install a Merritt side step tool box on your semi truck frame rail

Buy with Confidence

Built for enthusiasts. Every order is backed by our 30 day return window on eligible items. Unused and uninstalled products may be returned with approved RMA and no restocking fees when received in new condition. Orders placed through the MOTORMIA app with a complete build qualify for our Fitment Guarantee — free return shipping if the part doesn’t fit your exact setup. The guarantee covers fit only; installation must follow manufacturer instructions, and we recommend a qualified shop for parts marked Difficulty 4–5.

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