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K21-303-00 - Fortress Threaded Oil Cap – 5.2K–8K Axles – Fits Dexter & Rockwell | DXT
SKU: 8AL-GO-CPDXR
In stock
$40.21 USD $40.21 USD $52.00 USD

*The in-store price might differ from the online price listed above

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Description

The Fortress threaded oil cap is a heavy-duty replacement solution for 5,200-lb to 8,000-lb trailer axles. Designed to fit Dexter, Rockwell, and Lippert axles, this cap replaces the oil cap, O-ring, and plug in one complete kit. Its rugged aluminum construction and protective features help extend bearing life while making service easier.

Detailed Information:
Axle Capacity 5,200 – 8,000 lbs
Cap Type Threaded Oil / Grease Cap
Material Cast Aluminum with Black Coating
Viewing Window Clear Lens with Red Retainer Ring
Lubrication Type Oil or Grease Compatible
Fitting:

Fits 5.2K–8K trailer axles from Dexter, Rockwell, and Lippert. Direct replacement for the following part numbers:

  • Dexter: K71-038-00, 021-035-00, K21-297-00
  • Rockwell: 8001
  • Lippert: 695814
Features:
  • Complete Replacement Kit: Includes threaded cap, watertight O-ring seal, and fill/drain plug.
  • Threaded Design: Installs securely and resists loosening during operation.
  • Red Retainer Ring: Protects the clear viewing lens from impact and damage.
  • Easy Service Access: Large side plug allows quick filling or draining of oil.
  • Durable Construction: Cast aluminum body with black coating protects against corrosion.
  • Versatile Use: Functions as either an oil bath cap or grease cap.
Product Overview:

The Fortress threaded oil cap is built for durability, protection, and convenience. Designed for demanding trailer applications, it helps maintain proper lubrication, protects bearings from contamination, and simplifies routine maintenance. Ideal for replacing worn or damaged caps on Dexter, Rockwell, and Lippert axles in the 5.2K–8K range.
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