SKU: HOW223991
MPN: 223991
The HOWE 4 Bolt Upper Ball Joint Boot (part number 223991) is a precision dust boot engineered to protect ball joint assemblies from contamination and wear in demanding conditions. Manufactured by HOWE Precision Ball Joints, this polyurethane upper ball joint boot seals critical suspension components from moisture, dirt, and debris that accelerate joint degradation. The 4-bolt design ensures secure retention on HOWE upper ball joints and compatible suspension systems, making it essential maintenance for preserving suspension geometry and responsiveness.
Polyurethane construction delivers superior flexibility and chemical resistance compared to rubber formulations, resisting ozone cracking, UV degradation, and exposure to brake fluid or hydraulic oils common in high-performance and heavy-duty suspensions. The compact geometry (2.35 × 1 × 2.6 inches) integrates seamlessly into existing ball joint assemblies without modification. At 0.03 lbs, the boot adds negligible weight while providing years of sealed protection against the abrasive particles and moisture intrusion that compromise ball joint longevity and cause play in the steering and suspension geometry.
This boot is purpose-built for operators maintaining vehicles subject to demanding terrain, high-mileage duty, or storage in salt-air environments where corrosion and contamination accelerate joint failure. Off-road enthusiasts, fleet mechanics, and vehicle owners performing suspension maintenance recognize that preventive boot replacement is far more cost-effective than replacing worn ball joints. The black polyurethane finish resists staining and blends with OEM suspension hardware.
HOWE Precision Ball Joints are recognized in performance and heavy-duty suspension circles for manufacturing tight-tolerance ball joints that eliminate suspension play. This upper ball joint boot is a direct OEM-quality complement to HOWE ball joint assemblies, ensuring optimal sealing performance when paired with precision suspension upgrades or OEM ball joint renewal.
WARNING ⚠️ You must be 18 or older to purchase shotgun or rifle ammunition and 21 or older to purchase handgun ammunition and firearms. Please reference our requirements for ammunition orders to "restricted" states HERE. Always make sure you use the correct ammunition for your firearms. Ammo cannot be shipped to a PO Box. Please reference state & local laws before making a firearm or ammunition purchase.
