Iowa Customs 2″ Billet Aluminum Clutch Extender – Fits Peterbilt 379, 386 & 389
Better Reach. Better Control.
The Iowa Customs 2-Inch Billet Aluminum Clutch Extender is engineered for drivers who want smoother shifting and more comfortable pedal travel in Peterbilt trucks. Machined from solid billet aluminum, this extender increases clutch-pedal reach by two inches—perfect for drivers who prefer a longer throw or need extra clearance when running aftermarket floor mats.
Product Features
• Precision-machined from solid billet aluminum for strength and accuracy
• Increases clutch-pedal reach by 2″ for improved comfort and control
• Hard-anodized surface resists corrosion and road grime
• Direct bolt-on installation—no drilling or modifications required
• Designed specifically for Peterbilt 379, 386, and 389 models
• Proudly made in the USA
Fitment
Compatible Models: Peterbilt 379 / 386 / 389 (standard clutch assemblies). Not intended for automatic or conversion setups.
Why Drivers Choose Iowa Customs
• Improves ergonomics for a more natural driving position
• Premium billet construction—built to last the life of your truck
• Easy install using existing mounting hardware
• Designed and machined in the USA for professional-grade fit and finish
Common Questions
Q: Does it come with mounting hardware?
A: Yes, stainless hardware is included for a quick bolt-on installation.
Q: Will this fit other makes or models?
A: It is engineered for Peterbilt 379, 386, and 389 only.
Q: Does this change pedal pressure?
A: No — it simply adjusts pedal position without affecting clutch engagement or feel.
California Proposition 65
⚠️ WARNING: This product can expose you to chemicals including nickel and aluminum oxide, known to the State of California to cause cancer and reproductive harm. For more information, visit www.P65Warnings.ca.gov.