A clear plastic cap that seals your RV axle hub for oil or grease lubrication. The transparent design lets you check oil levels at a glance without removing the cap, making maintenance and inspection simpler. Compatible with Lippert 8,000-pound hub assemblies, this cap works with both oil-bath and grease-lubricated hybrid axles.

• Fits Lippert 8,000-pound hubs
• Clear plastic construction
• Oil bath or grease lubrication compatible
• Visual oil-level inspection window
• Single unit per package