Firestone 12392 FS509 Steer Commercial Tire 295/75R22.5 16PR H 148/145L

The Firestone FS509 (Part #12392) is a 295/75R22.5, 16-ply (Load Range H) highway steer tire purpose-built for heavy-duty commercial trucks and buses. Combining Firestone's proven ribbed tread design with a Bridgestone-engineered casing, the FS509 delivers an exceptional blend of treadwear longevity, mileage performance, casing durability, and retreadability — making it a top value choice for long-haul fleet operators.

Key Features:

• Steer Axle Optimized: Engineered specifically for steer axle positions, promoting precise steering response and driving stability under load
• All-Season Performance: Ribbed tread design with an all-season compound provides reliable traction in dry, wet, and cold weather conditions year-round
• Superior Water Evacuation: Optimized circumferential grooves efficiently channel water and slush away from the contact patch, reducing hydroplaning risk
• Extended Tread Life: Wear-resistant compound and balanced rib architecture promote even pressure distribution, slowing tread wear and maximizing removal mileage
• Reinforced Casing: Bridgestone-engineered internal structure maintains ideal tire shape under heavy load and sustained driving pressure
• Retreadable Casing: Built to support retreading, extending the overall economic life of the tire for fleet cost management
• Load Range H / 16-Ply Rating: Rated at 148/145L dual, supporting demanding commercial payload requirements

Specifications:

• Size: 295/75R22.5
• Load Range: H (16 Ply)
• Service Description: 148/145L
• Speed Rating: L (75 mph)
• Max Load Capacity: 7,606 lbs (single)
• Tire Weight: ~109 lbs
• Season: All-Season
• Position: Steer
• OEM Part Number: 012392 / FIRE-TCK-231355

The Firestone FS509 is the dependable, value-driven choice for long-haul commercial steer applications, backed by Firestone's legacy of commercial tire engineering and Bridgestone's casing technology.