Holman 12204W Pro Rack Side Channel Kit User Guide
A guide to the Holman 12204W Pro Rack Side Channel Kit, detailing features, compatibility, and technical specifications for this heavy-duty truck rack system.
Table of contents
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This document provides an overview of the Holman 12204W Pro Rack Side Channel Kit. It outlines the key features, compatibility with service bodies, and the technical specifications of the rack system. This kit is designed for full-size work trucks and platform bodies.
Product Overview
The Pro Rack Side Channel Kit is a heavy-duty solution for professional tradesmen. It is engineered to work with service bodies and provides a robust framework for transporting equipment. The system is designed for durability and ease of use in demanding commercial environments.

Key Features
The Pro Rack system includes several design improvements and returning features to enhance performance:

- Forklift Loadable Side Rails: Optional rails allow for safer and more efficient loading of the rack.
- Swing-out Rear Crossbar: Designed to ease the loading process.
- Adjustable Front Leg Mounting: Fits a wider range of vehicle applications with a single rack.
- Improved Foot Mounting: Reduces horizontal deflection for a stronger rack structure.
- Easy Entry Grab Handles: Mounted low on the rear for added support.
- Wind Deflector: Now included as standard to reduce noise.
Technical Specifications
The rack is built with industrial-grade materials to ensure longevity and strength:
- Frame: 2-inch diameter steel tube frame.
- Finish: Premium powder coat with zinc epoxy primer for superior corrosion protection.
- Joints: 5-inch swaged joints designed for the toughest commercial applications.
- Durability: Certified ASTM 1000 hour salt spray testing.
- Fasteners: High-strength, rust-proof, self-locking fasteners.
Compatibility and Accessories
The 12204W kit is compatible with most service bodies. It is designed to work in conjunction with the following items:
- 12004W - The Pro Rack Leg & Bars Kit - Service Bodies, White
- 31113 - Pro II Extra Crossbar
- 31153 - Pro II Utility Hook
- 31173 - Pro II Emergency Light Mount Bracket
- 31490 - Retractable Ratchet Straps with Pro II Mount Brackets (2" W x 7' L)
- 31500 - Retractable Ratchet Straps with Pro II Mount Brackets (1" W x 6' L)
Practical help
Before use
- Verify vehicle fitment (Service Bodies)
- Ensure compatibility with existing 12004W Leg & Bars Kit
- Check truck configuration (short bed vs crew cab) for mounting requirements
Specs in practice
- 2 inch steel tube
- Industrial grade frame strength for modular racks
- ASTM 1000 hour salt spray
- Certified corrosion resistance testing standard
- 5 inch swaged joints
- Reinforced connection points for commercial applications
Images and diagrams
- The rack features a modular design with optional forklift loadable side rails.
- Rear grab handles are positioned low to assist with entry into the truck bed.
- The system utilizes a swing-out rear crossbar that requires no tools to operate.
Model compatibility
- Compatible with 12004W Pro Rack Leg & Bars Kit
- Compatible with Pro II accessories including extra crossbars, utility hooks, and light mounts
Manual page author
Michael Turner
Technical manual editor
Reviews PDF manuals for structure, safety notes, and practical product details so readers can find the right information quickly.