
HexThread™ Front Access Cartridge
The Xtractor is equipped with a patent-pending HexThread™ front access cartridge which allows for easy hub oil service and internal inspection—without removing the hub cap or disturbing the flange gasket. This feature simplifies routine maintenance and supports early detection of wear, helping to prevent expensive failures.

3-Stage Magnetic Oil Filter
The Xtractor features a 3-stage magnetic filter that captures large debris and fine ferrous particles suspended in hub oil—protecting seals and bearings from pitting, scoring, corrosion, and galling. This patent-pending, reusable filtration mechanism keeps lubrication oil cleaner, longer—helping safeguard critical axle components especially in demanding, high-load environments.
Made in the USA with performance-driven materials

Ultra-Durable Materials
Precision cast and machined from premium aluminum alloy, The Xtractor delivers unmatched strength, heat resistance, heat dissipation, and sealing performance.

UV-Stabilized Sight Glass
The UV-stabilized, high-heat polycarbonate sight glass delivers exceptional clarity, impact resistance, and thermal stability at any temperature.

Pressure-Balancing Plug
A high-performance, rubber plug functions as both a vent and fill port—designed to withstand the rigors of heavy-duty operation without cracking or leaking.
Shop The Xtractor™ Hub Cap for Heavy-Duty Trucks and Trailers
The Xtractor™ for Trucks & Trailers
Proudly designed, engineered, and manufactured in the USA.
FAQs
What makes The Xtractor unique?
Most hub caps are just covers. The Xtractor is a performance-driven component, actively filtering foreign particulates from circulating in hub oil.
What problem does it solve?
Traditional hub caps allow metal & debris to continually circulate through your wheel-end system. The Xtractor removes these contaminants to actively protect your critical axle components.
What vehicles is it compatible with?
The Xtractor is engineered for standard Class 7 and 8 trucks and trailers, with fitment options for most standard hub configurations.
Is it field tested and proven?
Of course. The Xtractor has been tested in real-world fleet operations and validated by experienced mechanics and logistics professionals.
Where is The Xtractor manufactured?
The Xtractor is proudly designed, engineered, and manufactured in the USA.
Is it easy to install?
Absolutely. The Xtractor fits just like any other hub cap. Gasket, 6 bolts, torque, then fill.
Where can I buy The Xtractor?
You can purchase The Xtractor through our online store or contact our team directly for fleet pricing and bulk orders.
Gallery

XTR-7174

XTR-8856

XTR-8058

XTR-7174

XTR-8856

XTR-8058
Cross Reference
This product is manufactured by The Hub Corporation and is not affiliated with, endorsed by, or sponsored by any other third party. Any references to third-party part numbers, trademarks, or brand names are for cross-reference and compatibility purposes only.