The Chelsea M12 lock washer, part number 379140-7 or 3791407, is a genuine Chelsea hardware component used in power take-off (PTO) assemblies. Sourced directly through Pro Gear and Transmission, this M12 fastener hardware fits within the Chelsea PTO and Components line. Lock washers in PTO applications prevent fastener loosening under the vibration and torque loads common to commercial truck auxiliary drive systems. Call us to confirm this is the correct hardware for your specific Chelsea PTO unit before ordering.
Features
Genuine Chelsea PTO hardware component
M12 lock washer designed for power take-off assembly applications
Part number 379140-7 or 3791407
Sold individually (each)
Available from Pro Gear and Transmission
