Iowa Customs Slim Series Exhaust-Mount IFTA Permit Holder – Fits Peterbilt 379, 386 & 389
Keep Your Permits Protected and Professional
The Iowa Customs Slim Series Exhaust-Mount IFTA Permit Holder provides a clean, show-quality way to display your IFTA and DOT permits. Designed specifically for Peterbilt 379, 386, and 389 models, this stainless-steel frame mounts directly to your exhaust bracket for a secure, low-profile fit. The Slim Series design delivers a sleeker look than traditional permit boxes—perfect for owner-operators who take pride in every detail.
Product Features
• Heavy-duty 304 stainless-steel construction with #8 mirror polish finish
• Slim, low-profile design mounts cleanly to exhaust bracket
• Weather-resistant clear acrylic face protects paper permits from moisture and debris
• Quick-release fasteners for easy permit changes
• Pre-drilled for universal fitment on Peterbilt 379/386/389 exhaust mounts
• Made in the USA with precision laser-cut edges and hand-polished finish
Fitment
• Peterbilt 379 / 386 / 389 models with standard dual exhaust mounts
• May fit other makes with similar mounting hole spacing — confirm dimensions before install
Why Truckers Choose Iowa Customs
• Professional-grade stainless hardware and fabrication quality
• Polished look to match other stainless accessories and trim
• Designed, cut, and assembled in the USA for precision fit and finish
Common Questions
Q: Does this include mounting hardware?
A: Yes — includes standard mount bolts for most Peterbilt exhaust brackets.
Q: Is the cover removable?
A: Yes — the clear acrylic face opens for easy permit updates or cleaning.
Q: Can this be used on other trucks?
A: While designed for Peterbilt 379/386/389, it can fit any truck with similar exhaust mount geometry.
California Proposition 65
⚠️ WARNING: This product can expose you to chemicals including nickel and chromium, known to the State of California to cause cancer or reproductive harm. For more information, visit www.P65Warnings.ca.gov.