Product Description
The Holland 4000572 is a genuine SAF-Holland left-hand fifth wheel lock replacement kit designed for compatible Simplex II fifth wheel assemblies. This kit provides the replacement locking components needed to service worn or damaged fifth wheel locking mechanisms on heavy-duty commercial trucks and tractors.
The fifth wheel lock works with the locking jaw to secure the trailer kingpin during coupling. Repeated trailer connections and normal operating wear can affect the locking components over time. Replacing worn parts helps restore proper locking operation, reliable kingpin engagement, and dependable trailer coupling.
The 4000572 kit includes the left-hand lock, cover plate, lever bar, lock spring, lever bar pin, and cotter pin. It provides a convenient repair solution without requiring replacement of the complete fifth wheel top plate.
Manufacturer: SAF-Holland
Brand: Holland / Simplex
Part Number: 4000572
Product Type: Fifth Wheel Lock Replacement Kit
Compatible Fifth Wheel Series: Simplex II
Release Configuration: Left-Hand
Compatible Serial Number Prefixes: LSL and SL
Kit Contents:
1 Left-Hand Lock (4109931)
1 Cover Plate (4100767)
1 Lever Bar (4100712)
1 Lock Spring (1200706)
1 Lever Bar Pin (5400766)
1 Cotter Pin (84261)
Quantity: One Complete Lock Replacement Kit
This kit replaces the fifth wheel locking components only. The locking jaw, eccentric jaw pin, operating rod, fifth wheel top plate, and mounting brackets are not included.
Verify the existing fifth wheel model, serial number, release configuration, and part number before ordering. The 4000572 is intended for compatible left-hand release assemblies. Right-hand Simplex II fifth wheels use lock kit 4000574.
Installation should follow SAF-Holland's recommended fifth wheel maintenance, rebuilding, and adjustment procedures.
