This heavy-duty aluminum hub cap is designed for 9,000–10,000 lb General Duty (GD) axle systems and supports both grease and oil bath configurations. Crafted from corrosion-resistant aluminum alloy, it features a magnetic vent plug, integrated oil level sight window, and convenient drain/fill ports. The complete kit ensures a direct-fit replacement for Dexter and Valcrum assemblies.

Detailed Information:

Fitting:

Compatible with Dexter 9K–10K GD axles and Valcrum-style hubs. Replaces factory aluminum hub caps for oil bath systems, providing enhanced sealing, fluid management, and debris protection. Easy to install with included plug, gasket, O-ring, and hardware.

Features:

• Precision-Machined Aluminum: Engineered for durability and corrosion resistance in demanding environments.
• Oil Level Sight Glass: Clear viewing window makes fluid checks simple without disassembly.
• Magnetic Vent Plug: Captures metal particles to reduce axle wear and extend service life.
• Accessible Ports: Built-in drain and fill access simplifies ongoing maintenance.
• All-In-One Kit: Includes seals, plug, vent, O-ring, and mounting hardware.

Interchangeable Part Numbers:

• K21-302-00
• K71-704-00
• 021-088-00
• K21-257-00
• ST-350-AM

Product Overview:

This premium aluminum grease/oil cap kit is a robust upgrade for Dexter and Valcrum 9K–10K General Duty axle hubs. With enhanced oil visibility, magnetic filtration, and complete installation components, it offers advanced protection and extended performance for high-capacity trailer systems.