Progressive · New
Progressive 17-Up M8 Softail Lowered Monotube Fork Cart Kit Adj P/L
MPN 31-4009 · Store SKU pgr31-4009
Supplier stock checked 11/7/2026, 5:31:40 AM UTC. Adding a part does not reserve it.
Request a return within 30 calendar days after delivery. New parts must be unopened and unused.
Shipping & returns ↗This policy does not limit rights required by law.Free standard shipping on eligible parts orders of $100 or more. Oversized and freight items excluded. Fitment, taxes, availability and final totals are confirmed before payment.
Product details
True high performance front suspension is finally available for the 2017+ M8 Softail line with 49mm front ends. Yes again, we've gone back to the drawing board and created a state-of-the-art Fork Cartridge Kit designed to outperform everything on the market. The asymmetrical design places a preload adjuster over a progressive rate spring combined with our road smoothing Frequency Sensing Technology (FST) damper for Milwaukee Eight Softail models. Fits Lowered
Manufacturer fitment & guides
Check 31-4009 against the manufacturer’s application information below.
A manufacturer application guide is not available for this listing. Request the exact application from JuiceBuilt before payment.
Part-specific notes
- California Proposition 65: Y
