KONI 99B-3262 EVO Front Shock for Freightliner XC/Spartan K2/Tiffin ZF-IFS

Vehicle Fitment

• 1985-2022 Freightliner XC/XCR/XCM/XCS with ZF IFS
• 2005-2020 Tiffin Allegro Bus PowerGlide with ZF IFS
• Spartan K2 with ZF IFS

Fitment Notes

• Front axle, sold individually
• ZF IFS only -- not I-beam or VFS
• 2023+ Freightliner XC uses new VFS front suspension -- not compatible, this shock does not apply to 2023+ chassis
• Reyco Granning IFS: see KONI 99B-3234 instead
• Rear companion: KONI 8805-1009 or 8805-1022, verify chassis first

Features

• Patented open intake valve technology
• 50mm large piston, 40% larger than earlier KONI FSD shocks
• Reduces front-end bounce and oscillation
• Cuts axle-induced vibration and noise
• 9-ton tensile strength rating
• Improved stability in wind and rough roads

Specifications

• Series: EVO 99
• Internal design: Twin-tube
• Extended length: 17.20"
• Collapsed length: 10.70"
• Mount type: Stem (upper and lower)
• Piston diameter: 50mm

Included Components

• 1x EVO 99 front shock absorber

Product Description

The KONI 99B-3262 EVO Front Shock is engineered for Freightliner XC, Spartan K2, and Tiffin Allegro Bus PowerGlide diesel motorhome chassis running ZF Independent Front Suspension. Patented open intake valve technology absorbs bumps smoothly while holding strong damping force through the large suspension movements a heavy Class A diesel pusher demands.

A 50mm piston -- 40% larger than the piston used in earlier KONI FSD shocks -- improves durability and control, cutting front-end bounce and axle-induced vibration for a quieter ride at highway speed. Rated for 9 tons of tensile strength, this shock is built for the weight and demands of large diesel pushers, including sustained crosswinds and rough pavement.

ZF IFS specific -- Freightliner replaced ZF IFS with its newer VFS I-beam front suspension starting with 2023 chassis, and Reyco Granning IFS chassis require a different shock entirely, so confirming your exact chassis year and front suspension type before ordering matters. Built for large Class A diesel pusher owners who want a genuine, heavy-duty upgrade over factory shocks.