United Pacific – Chrome Diagnostic Plug Cover with Crystal for Peterbilt

Diagnostic Plug Cover with Crystal for Peterbilt

Add a refined interior accent with the United Pacific Chrome Diagnostic Plug Cover with Crystal for Peterbilt trucks. Designed for a precise fit over the factory diagnostic port, this cover adds both protection and a clean chrome upgrade.

Manufactured from durable injection-molded plastic and finished with a triple chrome plating process, each cover features a high-quality European crystal for an eye-catching custom look. Available in multiple crystal colors, this upgrade enhances interior style while maintaining easy access to the diagnostic plug.

Product Features

• Manufacturer: United Pacific
• Material: Injection-molded plastic with European crystal
• Finish: Triple chrome plated
• Design: Diagnostic plug cover with crystal accent
• Vehicle Fitment: Peterbilt 379, 389, 388, 387, 386, 384 (2006+)
• Sold individually

Available Variants

• Blue Crystal – Item 41275
• Red Crystal – Item 41279
• Green Crystal – Item 41277
• Clear Crystal – Item 41276

Performance & Fit

This diagnostic plug cover is engineered for secure fitment over the factory diagnostic port. The crystal accent adds a premium visual upgrade without interfering with diagnostic access or function.

Installation

1. Locate the diagnostic plug inside the cab.
2. Align the chrome cover over the plug.
3. Press into place until secure.

Package Dimensions

• 5.5 in L x 3.95 in W x 1.55 in H

Why You’ll Love It

• Triple chrome plated for lasting shine
• High-quality European crystal accent
• Direct-fit design for factory diagnostic plug
• Adds protection and interior style
• Available in multiple crystal color options

Common Questions

• Does this block diagnostic access? No, it can be removed easily when access is needed.
• Is this a replacement plug? No, this is a decorative protective cover.
• Does it require tools? No, installs without tools.

⚠️ California Proposition 65 Warning:This product can expose you to chemicals including chromium compounds, known to the State of California to cause cancer or reproductive harm.For more information, visit www.P65Warnings.ca.gov.