This aluminum grease/oil cap is built for heavy-duty hub systems rated from 6,000 to 8,000 lbs. Featuring a 2.875" machined thread, it's compatible with a wide range of hub configurations, supporting both grease and oil bath applications. The cap includes a visible oil level window and magnetic vent plug to promote clean operation and easy maintenance.

Detailed Information:

Fitting:

Compatible with Dexter 6K & 8K screw-in hub caps, Dexter 9K axles (pre-10/1989), Lippert 8K, and Kodiak 8K disc brake systems. Replaces a wide range of OEM parts and fits threaded hub designs requiring 2.875" OD caps.

Features:

• Oil Level Sight Window: Built-in viewing port for monitoring oil without removing the cap.
• Magnetic Vent Plug: Captures metal debris to protect internal components.
• Dual Application: Designed for both grease-packed and oil bath hubs.
• Durable Build: Made from corrosion-resistant aluminum alloy for longevity.
• Complete Kit: Includes plug, seals, gasket, hardware, vent plug, and O-ring.

Interchangeable Part Numbers:

• Dexter 021-029-00
• Dexter 21-35 / K71-038-00
• Lippert 695814
• Kodiak 8001
• Valcrum ST-2875

Product Overview:

This 2.875" threaded aluminum hub cap is engineered for high-capacity trailers using 6K–8K axles. Its rugged design and smart features like an oil window and magnetic vent make it an ideal replacement for Dexter, Lippert, Kodiak, and Valcrum hub caps. Everything needed for installation is included in one convenient kit.