Description
From open highways to tough job sites, this aluminum cap delivers waterproof protection you can trust. One look through the clear lens shows your oil or grease level so you know you’re ready to go further without worry.
- Complete Waterproof Protection: Keeps water and grit out, so your bearings and hub stay protected.
- Direct-Fit Replacement: Replaces factory oil bath/grease caps, O-ring, and plug for select axles.
- Magnetic Fill/Drain Plug: Built-in magnetic plug attracts metal particles, helping prevent wear or damage.
- Crystal-Clear Viewing Window: Easily check oil or grease level without removing the cap.
- Easy to Fill or Drain: Maintain lubricant directly through the side port without removing the cap.
- Anodized Aluminum and E-Coat Resist Corrosion: Stands up to rain, sun, salt, and snow year after year.
Fits a Range of Axles, Replaces Existing Oil Caps
Replaces the oil bath/grease cap, O-ring, and plug on these axles:
- 9K axles manufactured after October 1, 1989
- 10K axles
- 12K & 15K heavy-duty axles
Cap is a direct replacement for these Dexter or Valcrum oil caps:
- Dexter: 21-36, 21-036, or K71-148-00 caps
- Valcrum: ST-400 caps manufactured after 08/2019
Seals Out Water For Good
Say goodbye to leaks, milky oil, and all the headaches that come with water finding its way into your hub. A tight O-ring, gasket, and precision threading lock out water and road grime, while the red button on the vent plug works as a check valve. This lets built-up pressure escape but keeps water from ever getting in. Drive through thunderstorms, launch at the boat ramp, or tackle muddy job sites knowing your bearings and hub are protected.
See Problems Before They Start
The magnetic plug sits inside the cap and collects metal shavings and debris. When you check the plug during maintenance, you get an early warning about unusual bearing or axle wear. This lets you catch small issues before they turn into expensive repairs. In addition, the crystal-clear window makes it easy to check your oil or grease level in seconds. Just take a look and know you’re running with the right amount of lubricant, helping you avoid surprise breakdowns.
Fast, Mess-Free Maintenance
Top up or change lubricant through the side access port. There’s no need to remove the cap or risk damaging your seals. You save time, avoid mess, and lower the risk of improper installation.
Included in Kit:
- 1 hub cap, 1 gasket, 1 lens, 1 retainer ring, 1 foam gasket, 6 Torx screws, 1 Hydro-Shield vent plug, (1) 1/8 -27 Magnetic Plug, 1 O-Ring