Product Description
The Holland 4000570 is a genuine SAF-Holland left-hand fifth wheel lock replacement kit designed for compatible Simplex Lite straight-pull 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 mechanism over time. Replacing worn or damaged components helps restore proper locking operation and dependable trailer coupling.
The 4000570 kit includes the left-hand lock, cover plate, lever bar, lock spring, and associated retaining pins. It provides a repair solution for compatible Simplex Lite fifth wheels without requiring replacement of the complete fifth wheel top plate.
Manufacturer: SAF-Holland
Brand: Holland / Simplex
Part Number: 4000570
Product Type: Fifth Wheel Lock Replacement Kit
Compatible Fifth Wheel Series: Simplex Lite / Simplex Straight Pull
Release Configuration: Left-Hand / Straight Pull
Compatible Serial Number Prefixes: LSLS and SLS
Kit Contents:
1 Left-Hand Lock (4109931)
1 Cover Plate (4100155)
1 Left-Hand Lever Bar (4100373)
1 Lock Spring (1200706)
1 Clinch Pin (9900170)
1 Lever Bar Pin (4000250)
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.
The Simplex Lite straight-pull fifth wheel is a discontinued model, making replacement components particularly useful for maintaining existing equipment.
Important Fitment Note: SAF-Holland identifies 4000570 as the lock replacement kit for Simplex Lite straight-pull fifth wheels with serial prefixes LSLS and SLS. It is different from the 4000578 kit used on compatible rotary-pull models.
Verify the existing fifth wheel model, serial number, release configuration, and part number before ordering. Installation should follow SAF-Holland's recommended fifth wheel service and adjustment procedures.
