Vendor: VALCRUM

ST-400L - Aluminum Oil/Grease Cap – 4" Thread – For 10K–16K Hubs - ST-400L | VLCRM

SKU: 1016-GO-CP-VLM
Regular price $50.00 USD Sale price $50.00 USD Regular price $75.00 USD
Sale 33.33% $25.00 USD (33.33%)
Shipping calculated at checkout.
In stock

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*Some exclusions may apply

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Description

The Valcrum ST-400L aluminum hub cap is engineered for 10,000–16,000 lb trailer axles, offering a premium replacement for traditional plastic oil/grease caps. With a 4" machined thread and a rugged aluminum alloy body, this cap supports both grease-packed and oil bath systems. Its integrated oil level sight window, magnetic vent plug, and drain/fill ports make it ideal for high-performance, service-friendly applications.

Detailed Information:
Thread Diameter 4.00"
Thread Type Machined Screw-In
Material Aluminum Alloy
Axle Rating 10,000–16,000 lbs
Fitting:

Designed to fit Lippert and Dexter hubs with 10K–16K capacity. Replaces Lippert 693935 and Valcrum ST-400 (produced after 08/2019). Compatible with both grease and oil bath hub configurations. Uses 4" standard threads and installs using the included hardware.

Features:
  • Premium Aluminum Construction: Durable and corrosion-resistant for long-lasting performance.
  • Integrated Sight Window: Allows visual monitoring of oil level without removing the cap.
  • Magnetic Vent Plug: Captures metal particles to help protect internal axle components.
  • Service Ports: Built-in drain and fill ports for easy fluid maintenance.
  • Complete Kit: Includes gasket, O-ring, fill plug, vent plug, retainer ring, screws, and lens.
Kit Contents:
  • (1) Hub Cap
  • (1) Oil Level Lens
  • (1) Retainer Ring
  • (1) Foam Gasket
  • (1) Oil Cap Gasket
  • (1) Magnetic Vent Plug
  • (1) 1/8"-27 NPTF Fill Plug
  • (1) O-Ring
  • (6) Torx Screws
Interchangeable Part Numbers:
  • ST-400L
  • Lippert 693935
  • ST-400 (Post 08/2019)
Product Overview:

The Valcrum ST-400L is a high-performance, 4" universal aluminum hub cap for 10K–16K axles. Designed to outlast plastic alternatives, it features a visible oil window, magnetic debris filtration, and easy-access fluid ports—all in a rugged, service-ready form. Perfect for commercial trailers and fleets requiring reliable, long-term axle protection.

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