Fabtech K9009 1.5-Inch Coil Assist Kit without Struts or Shocks — 2015–2021 Sprinter 3500 4WD

Fabtech K9009 supplies front coil-assist springs and seats, rear block/bumpstop hardware and front hub spacers. Struts and shocks are purchased separately.

Application

• 2015–2021 Mercedes-Benz Sprinter 3500 4WD with factory suspension and the factory front hub adapters shown in FT28002. Verify the year, model, drivetrain and hub configuration before ordering.
• This 3500 package uses FTS28010 rear hardware and FTS28002 front hub spacers. Sprinter 2500, 2WD and later AWD applications are outside this listing.
• Nominal 1.5-inch system; the manufacturer describes approximately 1–1.5 inches of front lift. Actual stance depends on the vehicle and load.
• For use with separately purchased compatible Bilstein B4 struts and the specified Fabtech rear shocks. This package is not a complete damping system.

Package contents

• One FTS28012 front coil-assist kit: two FT88942 coil springs, two each FT19000 lower perches, FT19001 support washers and FT19002 upper perches, plus specified FT19015 subassembly. No struts or shocks included.
• One FTS28010 rear box: two combined block/bumpstop units, four U-bolts, ten FT120 spacers, linkage bracket and specified hardware. The new units replace the factory block/bumpstop units.
• One FTS28002 front hub-spacer kit: two FT19007 spacers, twelve M14-1.5 × 65mm bolts and specified thread-locking compound. Fits behind the factory front hub adapters; factory wheel lug nuts are retained.
• Compatible Bilstein B4 struts and the specified FTS7231 Performance or FTS81163 Dirt Logic rear shocks are required separately. No auxiliary shock mounts or auxiliary shocks are included.

Installation and requirements

• Professional installation required on a stock vehicle. Read FT28003, FT28010 and FT28002 before installation and inspect the suspension and alignment.
• FT28003 covers FTS28012 without struts. Retain the factory upper strut mounts and assemble the compatible separately purchased B4 struts, support washers, perches and coil springs as instructed.
• Replace the factory rear block/bumpstop units using FTS28010. Use two FT120 spacers per U-bolt and one FT120 behind each upper rear shock mount, following FT28010.
• Remove the factory front hub adapters, install the FTS28002 spacers behind them and refit the adapters using the supplied bolts and thread-locking compound. Follow all specified torque values.
• Check tire, brake-hose and ABS-wire clearances through steering travel, align to factory specifications and adjust headlights. Recheck fasteners and wheel hardware after 50 miles and periodically as directed.

Tire and wheel guidance

• Manufacturer reference: front 275/75R16 tires on 16×5.5 wheels with 8-inch backspacing and minor trimming; rear 275/75R16 tires on 16×5.5 wheels with −2.16-inch backspacing. Verify clearance on the actual vehicle. Wheels and tires are sold separately.

Manufacturer part number: K9009. Manufacturer product details.

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