Tools› Storage/Organizers

RKI

90 STEEL UPPER SIDE TOP OPENING BOX BLK

$1,766.03

SKU: R01R UST90CB

Out of Stock
Free Shipping over $200
$100 Minimum Order
Non-Returnable Item
INSTALL DIFFICULTY
DIY PRO SHOP

Moderate — 2–4 hours

Overview

The RKI UST90CB is a 90-inch steel upper side top-opening truck tool box, part number UST90CB. It features two horizontally hinged doors and a single top lid with adjustable divider slots. Constructed from heavy-duty 14-gauge cold-rolled steel with full arc welds and a black polyester powder coat finish for corrosion protection. The design includes drip rails, weather seals, and a lid assist system. The top-opening compartment is 4.5 inches deep and includes 8 dividers. The 14-gauge steel lid has an inner stiffener, six 4-inch stainless steel butt hinges, and a ribbed D-bulb seal. The two 14-gauge steel front doors also have inner stiffeners, three stainless steel pillow block hinges with self-lubricating bushings, and heavy-duty machine chains to hold them horizontal (detachable for 180-degree swing). Recessed full-size, stainless steel paddle handle rotary latches allow closing while locked. Mounting hardware is included.
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90 STEEL UPPER SIDE TOP OPENING BOX BLK

Product descriptions are provided by our supplier partners and may not always be perfectly accurate. Not sure this fits? or call (760) 282-4645 and we’ll verify before you order.

Fitment

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Specifications

BrandRKI
Part NumberR01R UST90CB
5,000+ Trusted brands
1M+ Enthusiasts
5M+ Parts sold
(760) 282-4645 hello@motormia.co

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Returns & Fitment

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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Shipping

Orders are processed in 1–3 business days. In stock parts ship promptly from our partner network. Special-order items either aren’t currently stocked or are built to your spec — expect 4–6 weeks. If a part goes on backorder while your order is in the queue, we’ll reach out and work through discounted alternatives together.

Free shipping over $200 in the continental US. Alaska, Hawaii, U.S. territories (Puerto Rico, U.S. Virgin Islands, Guam, American Samoa, and the Northern Mariana Islands), and international orders carry surcharges — most appear at checkout. Some exceptions (LTL freight, or suppliers who quote freight only after we place the order) won’t. In those cases we’ll reach out with the exact charge before your order moves forward.

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