Vendor: DEXTER

K21-301-00 - Fortress Threaded Aluminum Oil Cap – 10K–15K Axles | DXT

SKU: K21-301-00-DXT
In stock
Regular price $38.74 USD Sale price $38.74 USD

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

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We want you to be completely satisfied with your purchase. That’s why we offer a hassle-free return policy within 30 days of delivery*. If your item is unused, in original packaging, and eligible for return, you can send it back for a refund or exchange.

*Some exclusions may apply

*Some of our products are backed by a 1-year limited manufacturer warranty covering defects in materials and workmanship under normal use. If you experience any issues during this period, we’ll work with you to repair, replace, or resolve it according to warranty terms.*

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Description

The Dexter K21-301-00 Fortress® Threaded Aluminum Oil Cap is a premium bearing protection solution designed for Dexter 10,000 lb to 15,000 lb trailer axles. Featuring a rugged cast aluminum body, reinforced viewing lens protection, and a large side fill/drain plug, it simplifies maintenance while providing superior sealing and long-lasting durability for oil-lubricated hub systems.

Detailed Information:
Product Type Threaded Oil Cap
Series Fortress®
Axle Capacity Compatibility 10,000 lb – 15,000 lb
Material Cast Aluminum
Finish Black Protective Coating
Lubrication Type Oil or Grease
Seal Type Rubber O-Ring & Gasket
Part Number K21-301-00
Fitting:

Designed for Dexter 10K–15K trailer axle hub assemblies utilizing threaded oil caps. Compatible with both oil bath and grease-lubricated Fortress® hub systems.

Features:
  • Fortress® Bearing Protection: Genuine Dexter threaded hub cap engineered for maximum bearing protection.
  • Cast Aluminum Construction: Heavy-duty aluminum body provides exceptional durability and corrosion resistance.
  • Reinforced Viewing Lens Protection: Integrated retainer ring helps protect the clear inspection window from impact damage.
  • Large Side Fill/Drain Plug: Makes servicing and lubricant changes quicker and more convenient.
  • Superior Sealing: Durable rubber O-ring and gasket help prevent leaks and contamination.
  • Oil & Grease Compatible: Suitable for both oil bath and grease-lubricated hub applications.
  • Black Protective Finish: Adds corrosion resistance for long service life in demanding environments.
Product Overview:

The Dexter K21-301-00 Fortress® Threaded Aluminum Oil Cap offers advanced protection and simplified maintenance for heavy-duty trailer hub assemblies. Designed for 10K–15K axles, it combines rugged construction, enhanced sealing, and convenient servicing features to maximize bearing life and ensure dependable trailer performance.

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