The PS574K Conversion Kit converts a PIERCE 9,000 lb electric worm gear winch (PSW654-K) into a 12,500 lb winch (the PSW654-MK equivalent). Includes the heavier housing, cover, bolts, planetary gear, transfer gasket, worm gasket, and motor seal — you reuse the existing motor, motor gear, idler gear, and one transfer gear.
When does the PS574K make sense vs. just buying a PSW654-MK?
If you already own a 9,000 lb PSW654-K and want more pulling capacity, the conversion kit is faster than swapping the whole winch. If you're starting from scratch, buy the PSW654-MK directly — same end result, no conversion labor.
- Converts PIERCE 9,000 lb (PSW654-K) to 12,500 lb (PSW654-MK)
- Includes: heavier housing, cover, bolts, planetary gear, transfer gasket, worm gasket, motor seal
- Reuses the existing motor, motor gear, idler gear, and one transfer gear
- Direct fit on PSW654-K
- Pierce SKU PS574K — typically in stock
For the starting-point winch, see the 9,000 lb 12V Worm Gear Winch. For the target spec without conversion, see the 12,500 lb 12V Worm Gear Winch. For converting electric to hydraulic instead, see the Electric to Hydraulic Conversion Kit.
