Lock NutThis aftermarket replacement lock nut is built to resist loosening from forklift vibration during lift cycles, travel, and cornering. Fleet maintenance teams use these for steer axles, mast assemblies, counterweight mounts, and brake hardware where retorque intervals matter. Nylon and metal locking variants both serve high-cycle applications where a standard nut would back off and create downtime. Buyers tend to be in-house mechanics restocking shelf inventory and independent service shops pricing repairs against OEM lines. Because this part is sold as a crossover, contact us to verify thread pitch, grade, and seat profile for your specific truck before installing.Aftermarket replacement part, cross-references original part number AC01598-00809.Need help confirming fit? Call (562) 693-7748 with your serial number.Part number variants: AC01598-00809, ac01598-00809, AC0159800809, ac0159800809 ⚠ Warning: Some equipment has serial-number breaks that may not be reflected in the catalog. Contact us for clarification before ordering if uncertain.SCR Forklift Parts ships from Whittier, CA with next-day delivery available across the US when needed.
