A basic factory cap does the job, but it doesn't give you much extra protection. Upgrade to an aluminum Hydro-Shield cap that seals out water and grit, while the clear lens lets you check lubricant before the next haul.
A standard oil bath or grease cap does the basic job of closing off the hub, but this Hydro-Shield cap gives you more protection and easier access for maintenance. Its aluminum construction, waterproof sealing system, clear viewing window, and side service port make it a substantial upgrade when you want more from the cap already on your axle.
Replaces the oil bath/grease cap, O-ring, and plug on these axles/drums:
Cap is a replacement for these Dexter oil caps:
Water and road grit can work their way past a basic cap and contaminate the lubricant around your bearings. The O-ring, gasket, precision threading, and Hydro-Shield vent plug create a waterproof barrier around the hub. The red button in the vent plug works as a check valve, releasing built-up pressure while keeping water from entering through the vent. That extra protection matters when your trailer sees heavy rain, muddy job sites, road spray, or repeated trips to the boat ramp.
The crystal-clear window gives you a direct view of your oil or grease level, so a quick look can become part of your normal trailer inspection. During maintenance, the magnetic plug also gives you another useful checkpoint by collecting metal particles that can indicate unusual bearing or axle wear.
You do not have to remove the entire cap just to service the lubricant. The side access port gives you a direct place to add or drain oil or grease, reducing the amount of disassembly during routine maintenance and leaving the cap and its seals in place.
Videos are provided as a guide only. Refer to manufacturer installation instructions and specs for complete information.
Hi, everybody, Andy here with etrailer. Let's take a quick look together at this Valcrum Hydro-Shield waterproof aluminum oil bath or grease cap for your 9K to 10K GD axles. Now, with this, you're gonna be able to say goodbye to leaks, milky oil, and all the headaches that come with water finding its way into your hub. With a tight O-ring gasket and precision threading, that's all gonna work together to lock out water and road grime, while the red button on the vent plug is gonna work as a check valve. This lets built-up pressure escape but keeps water from ever getting in. You're gonna be able to drive through thunderstorms, launch at the boat ramp, or tackle muddy job sites knowing that your bearings and hubs are going to be well-protected.
The anodized aluminum and E-coat are going to work together to resist corrosion. This thing's gonna stand up against rain, sun, salt, and snow year after year. So this is going to fit, as you can see there on your screen, a range of axles and it's gonna replace existing oil caps. So as you can see there, this is going to replace the oil bath/grease cap, O-ring, and plug on those axle drums that you see there on your screen, the Dexter 9K-10K GD and the Dexter #13G drums. And then you see that the cap is a direct replacement for the Dexter oil caps that you see there.
This information is obtainable on this product page, so you can revisit the product page for that very same information. This does include, I don't know, yeah, there it is right there. A magnetic plug is included and it sits inside the cap and it collects metal shavings and debris. So when you check the plug during maintenance, you're gonna get an early warning about unusual bearing or axle wear. This is gonna let you catch small issues before they turn into expensive repairs.
In addition, this crystal clear window is gonna make it very easy to check your oil or grease level in seconds. You're just gonna take a look and you're gonna know you're running with the right amount of lubricant, helping you avoid surprise breakdowns. You're gonna be able to top up or change the lubricant through the side access port. And there is no need to remove the cap or risk damaging seals. You're gonna be able to save time, avoid mess, and lower the risk of improper installation.
The thread outer diameter is 3.5 inches and includes everything that you see here. And if you happen to have any other questions, whether it's about this or anything else that we carry, don't hesitate to reach out. We wanna make sure that you're getting exactly what you need. Well, my name is Andy. Thank you for joining me.
Customer Satisfaction Score:
78% were satisfied with this product
22% of customers were not satisfied
Ratings & Reviews
I cannot rate the product but shipping met my expectations.
fast shipping great product
I'm am looking forward to see if they work as advertised. I tow a 40'boat all the time and have had nothing but bearing problems. Water has been getting into the bearings rusting and destroying them. Staff was a great help as well.
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