Product Description
Grease fitting
Frequently Asked Questions
Q: What size and thread type does the 00591-43576-81 grease fitting have?
A: This grease fitting is a 1/4 inch NPT straight thread design, standard across most forklift manufacturers. Length is 5/8 inch with a ball check valve to prevent grease backflow.
Q: Which forklift brands use the 00591-43576-81 grease fitting?
A: Compatible with Crown, Toyota, Hyster, Clark, CAT, and Jungheinrich forklifts. Confirm your equipment model and serial range before ordering to ensure fitment on mast assemblies and pivot points.
Q: What is the pressure rating and material of this grease fitting?
A: Rated for 3000 PSI with a hardened steel body and brass ball check. Material ensures corrosion resistance in outdoor and cold storage environments common to forklift operations.
Q: How often should the 00591-43576-81 grease fitting be serviced?
A: Recommend greasing every 8 to 12 hours of operation or weekly for equipment in regular use. More frequent service may be needed in wet or salt-exposure environments.
Q: What indicates the 00591-43576-81 grease fitting needs replacement?
A: Replace if the ball check valve sticks, preventing grease flow, if threads are stripped or cross-threaded, or if corrosion prevents proper seating. A grease fitting with a stuck plunger cannot be serviced and must be replaced.