Zone Offroad D113F Nitro Series Nitrogen-Charged Shock Absorber

The Zone Offroad D113F is a Nitro Series nitrogen-charged shock absorber engineered to deliver improved ride control and damping performance for lifted trucks and SUVs. Designed as a direct-fit replacement compatible with Zone lift systems, this shock absorber restores proper suspension geometry and ride quality after a lift installation.

The Nitro Series features a twin-tube design pressurized with nitrogen gas to minimize oil aeration and ensure consistent, split-second damping response under a wide range of on- and off-road driving conditions. Vehicle-specific valving is tuned to balance comfort on paved roads with confident control on rough terrain.

Key Features:

• Twin-tube, nitrogen-charged design for consistent on- and off-road performance
• 10-stage velocity-sensitive valving for improved compression and rebound control
• Fluon-banded piston for smooth operation and long service life
• Steel alloy body with dual welded ends for added durability
• Heavy-duty 14mm chromed shock shaft for strength and corrosion resistance
• Self-lubricating seals to extend service life
• Sold individually; bushings and sleeves included for direct-fit installation

Zone Offroad backs this shock with a 3-year / 36,000-mile warranty for the original retail purchaser, covering defects in materials and workmanship. Professional installation by a certified mechanic is recommended.