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DEXTER

Aluminum Oil/Grease Cap – Fortress Bolt-On (Cap Only) – For 9K–12K Hubs | DXT
SKU: 912AL-GO-CAP-DXR
$49.00 USD $49.00 USD $68.00 USD
Sale 27.94% $19.00 USD (27.94%)
Shipping calculated at checkout.
In stock
Description

This is a standalone Fortress-series aluminum bolt-on hub cap, designed for Dexter 9,000–12,000 lb oil bath axle hubs. Built from corrosion-resistant aluminum alloy, it replaces the cap only—ideal for servicing or replacing damaged units without needing a full kit.

Detailed Information:
Axle Rating 9,000–12,000 lbs
Mount Style Bolt-On
Material Aluminum Alloy
Application Oil Bath Hub Systems
Fitting:

Direct replacement for Dexter Fortress bolt-on aluminum cap (Part #021-259-00). Designed to fit Dexter 9K–12K oil bath axles equipped with the Fortress bolt pattern. Does not include hardware, gasket, or plug.

Features:
  • High-Strength Aluminum: Corrosion-resistant and impact-tough for long-term use.
  • OEM Fit: Matches Dexter’s factory specs for Fortress bolt-on systems.
  • Cap Only: Ideal for partial replacements—reuse existing hardware and plug.
  • Fleet-Ready: Commonly stocked for in-field service or shop repairs.
Interchangeable Part Numbers:
  • 021-259-00
Product Overview:

This aluminum Fortress bolt-on cap is built for 9K–12K Dexter axles. As a cap-only replacement, it’s ideal for restoring hub protection without purchasing a full kit. Whether you're upgrading damaged components or stocking spares, this OEM-quality cap ensures lasting performance in oil bath systems.

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.*

*Proof of purchase required

Need it fast? We’ve got you covered. Orders confirmed before 3 PM Eastern Standard Time (Monday–Friday) are processed and shipped out the same business day. Orders placed after the cutoff will ship the next business day.
Aluminum Oil/Grease Cap – Fortress Bolt-On (Cap Only) – For 9K–12K Hubs | DXT

Customer Reviews

Based on 12 reviews
83%
(10)
17%
(2)
0%
(0)
0%
(0)
0%
(0)
R
Robert Williams
Perfect Match for Part #[****]

Replaced a damaged original—identical in fit and finish. Confirmed compatibility with Dexter manual. No guesswork needed.

B
Brod Banaszczyk
Holds Up to Daily Use

Installed on a landscape trailer with constant use. After months of mud, water, and impacts, no cracks or leaks. Worth every dollar.

A
Anton Kovalenko
One Cap Had Surface Pitting

Arrived with minor speckling—possibly from storage. Doesn’t affect seal, but finish isn’t flawless. Still better than most aftermarket.

B
Basilio Kupis
Saved Me From Full Kit Cost

Already had the gasket and plug. Just needed the cap. This option kept my repair cost low and efficient. Exactly as described.

W
Winny Graith
Lightweight Yet Strong

Aluminum is tough but doesn’t add weight. Looks clean and professional on the hub. No warping, even in summer heat.

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