Husqvarna Lawn Tractor Zerk Grease Fitting, 3/8-In 596623501 Genuine OEM
by Husqvarna · Fitting
Lawn & GardenLawn & Garden Equipment & Accessories
Condition: NewAffiliate link: you pay on Sears PartsDirect's site, under its shipping and returns. We may earn a commission. Delivery time is shown on Sears PartsDirect's site.
Sears PartsDirect prices are from its product feed as of 18 Oct 2026, not live: the current price and availability are on Sears PartsDirect's own page.
Description
This is a Genuine OEM Husqvarna part. Basic InformationPart Name: Zerk Grease Fitting, 3/8-inManufacturer: HusqvarnaCategory: Lawn TractorPrimary Function: Provides a connection point for applying grease to moving parts, helping reduce wear and extend component lifeInstallation & CompatibilityCompatible Models: Fits various Husqvarna lawn tractor models. Confirm compatibility with your specific model before ordering. Installation Difficulty: Easy screws directly into the threaded grease portTools Required: Wrench or pliers (optional, depending on fit) Additional Information: The Husqvarna lawn tractor Zerk grease fitting (part number 596623501) replaces part number 539115638. This 3/8-inch fitting provides a direct way to apply grease to high-friction areas like spindle housings or steering pivots. Keeping these points lubricated helps maintain smooth operation and prevents wear that can lead to expensive repairs. If your lawn tractor shows signs of squeaking, stiffness, or grinding from moving parts, a missing or clogged Zerk fitting could be the cause. Replacing the fitting ensures your grease gun can deliver lubricant where it's needed most. To install, screw the fitting into the appropriate port and verify it's seated tightly. Then use a grease gun to apply lubricant until resistance increases or old grease exits the joint. Always perform lubrication with the engine off and wear gloves to protect your hands during maintenance. | Husqvarna Lawn Tractor Zerk Grease Fitting, 3/8-In 596623501 Genuine OEM
Fits, as listed by Sears PartsDirect
Listed by part number, not by machine model: confirm the number against your appliance's or machine's parts list before ordering.
For: Lawn Tractor