Made of high-quality materials and durable. Designed to withstand harsh conditions and provide reliable performance over time. Bolt size: 5/16"; Overall depth: 2-5/8"; Internal depth: 1-7/8"; Flange inner diameter: 3-1/2"; Flange outer diameter: 5-1/4". Compatible with STEMCO 343-4024; replaces Chicago Rawhide 1612, 1711, 1811; Eaton 506085; Ford D0HZ1131C; GMC/Volvo 806994, 858381, 8069924, 921010002; Mack 19QJ334, 19QJA2 9302; MCI 15L523. Features a high-quality seal for a tight and secure fit, helping prevent dust, water, and debris from entering the hub. This supports wheel bearing longevity and helps avoid costly repairs. Includes a transparent oil window for easy monitoring of oil level, supporting proper lubrication and preventing damage from low oil. Color: Silver Material: Aluminum Package includes: 2 hub caps with gaskets and plugs, and 2 additional plugs. Note: Color may vary slightly due to lighting and screen settings. Dimensions are subject to a tolerance of ±1–3 cm.