Timbren FR1504E SES Rear Suspension Enhancement System for 15-26 Ford F-150

Vehicle Fitment

• 2015-2020 Ford F-150 2WD/4WD (13th Generation)
• 2021-2026 Ford F-150 2WD/4WD (14th Generation)

Fitment Notes

• Standard SES kit designed for general towing and hauling applications
• Fits all cab configurations: Regular Cab, SuperCab, and SuperCrew
• Compatible with all bed lengths: 5.5', 6.5', and 8' beds
• Replaces factory bump stops on rear suspension frame rail above axle
• Designed for vehicles at factory ride height; spacer kit SPCRFR1504E available for lifted trucks
• Maintain 1/2" to 1-1/2" gap between rubber spring and axle for optimal unloaded ride quality
• Does not increase GVWR; do not exceed manufacturer's rated vehicle capacity
• For top-heavy loads like truck campers, consider Severe Service kit options

Features

• Patented Aeon hollow rubber spring technology with progressive spring rate
• Automatically adjusts to load; pushes back harder as weight increases
• Eliminates rear-end sag, body roll, and trailer sway when towing or hauling
• Maintains comfortable factory ride quality when unloaded
• Zero post-installation maintenance with no air lines, fittings, or compressors required
• Laser-cut steel mounting brackets are precision bent and powder-coated for corrosion resistance
• Independent left/right spring action compensates for off-center loads and cornering
• DIY bolt-on installation in approximately 30 minutes using basic hand tools

Specifications

• Part Number: FR1504E
• Type: Suspension Enhancement System (SES)
• Kit Type: Standard
• Position: Rear
• Rated Capacity: 6,000 lbs (per pair)
• Spring Design: Aeon Hollow Rubber
• Kit Height (without spacer): 7.00 inches
• Kit Height (with 1" spacer): 8.00 inches
• Kit Weight: 10 lbs
• Installation: Bolt-On (No Drilling Required)
• Quantity: Sold as Complete Kit
• UPC: 809933008257
• Warranty: Lifetime
• Country of Origin: Canada

Included Components

• Patented Aeon SES Hollow Rubber Springs (2)
• 1" Rubber Spacers (2)
• Steel Frame Mounting Brackets (2)
• Steel Axle Mounting Brackets (2)
• Mounting Hardware

Product Description

The Timbren FR1504E Rear Suspension Enhancement System transforms your 2015-2025 Ford F-150 into a more capable towing and hauling platform by eliminating dangerous rear-end sag, body roll, and trailer sway. Featuring patented Aeon hollow rubber springs with a progressive spring rate, the system automatically adjusts to varying loads while maintaining a comfortable factory ride when the truck is empty. Unlike air bag systems that require ongoing maintenance, air lines, and manual adjustments, Timbren's rubber spring technology provides true set-and-forget convenience with zero post-installation upkeep. The complete bolt-on kit installs in approximately 30 minutes using basic hand tools, replacing the factory bump stops with precision-fit powder-coated steel brackets and durable hollow rubber springs rated for 6,000 lbs capacity. Backed by Timbren's lifetime warranty and 100-day money-back guarantee, this suspension enhancement system extends the life of your factory suspension while providing confident control of your trailer or payload.