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Keeping dust and water away from your bearings is critical to maintaining your trailer's smooth operation. The Replacement Grease Cap comes with a robust O-ring seal that ensures a watertight fit, protecting your 7,000-lb, 7,200-lb, or 8,000-lb Kodiak hub-and-rotor disc brake kit. This feature ensures longevity so you can enjoy a hassle-free ride.
Whether you're working with grease-packed or oil-filled hubs, this cap has you covered. Made from tough UV-resistant polycarbonate material, it effortlessly serves as both a grease cap and an oil cap, giving you the flexibility to adapt to different maintenance setups without needing additional parts.
Eliminate the frustration of difficult installations. This grease cap is designed specifically for 2.25-inch spindles and requires only a 2-3/16-inch socket or wrench to secure. With the recognizable 2-7/8-inch-12 O.D. threading, you can trust the cap to fit snugly and securely every time.
Worried about visibility of your oil levels? The clear polycarbonate cap lets you easily monitor oil levels without removing the plug, ensuring your hubs are properly filled and your wheels are well-protected. This visibility helps prevent unexpected failures and promotes routine maintenance checks.
Accidental bumps and scrapes with tools won't ruin your day. Built from robust polycarbonate, this cap stands up to high torque without cracking under pressure, promising a durable and reliable barrier for many journeys to come.
Feel secure knowing this cap is engineered to handle the demands of your heavy-duty trailers. It's specifically tailored to fit 7,000-lb to 8,000-lb Kodiak disc brake kits, ensuring a perfect match for maintaining optimal performance, whether you're hauling your RV or transporting goods on a trailer.
Videos are provided as a guide only. Refer to manufacturer installation instructions and specs for complete information.
Hello, everybody. This is Jeff at etrailer.com. Today, we're gonna take a look at this replacement grease or oil cap for your Kodiak 7,000 pound, 7,200 pound, and 8,000 pound disc brake kits. Now, this part here will replace one grease cap or oil bath cap that's on your 7,000 pound, or 7,200 pound, or 8,000 pound Kodiak hub and rotor disc brake kit. It is designed to fit 2 1/4 inch diameter spindles only. And this cap will fit on hubs that have the threads on the inside of the hub.
You can see it is a nice, clear polycarbonate cap that'll function as either a grease cap or an oil cap. And what's nice is the clear design of the cap allows you to see if your bearings need additional lubrication. It does include this watertight O-ring seal to prevent any leaking of the oil and the grease after you tighten this down. And it has this nice center rubber plug here that can be popped out to add any grease or oil. The thread outer diameter right back here is 2 7/8 of an inch.
Now, it does require a 2 3/16 inch size socket or wrench for installation. And as we mentioned, the cap includes the cap, the O-ring, and the plug altogether. But that should do it for the review on the replacement grease or oil cap for the Kodiak 7,000 pound, 7,200 pound, and 8,000 pound disc brake kits..
Hello every one.
Just by looking at what i need on etrailer web site found it and ordored .
Whitin few hours received a reply with confirmation order has been process and on its way to destination with a UPS tracking number.
My package arrive in time with my grease cap tube that i order for my 5th wheel.
I do recommend Etrailer to any body in needs of spare parts.
Thak you verry much
Regards : Rene R
Fit was great. Exact match to factory c ap
Item was as described and works well. Fast shipping.
Works Great!
Condition one year later is unknown as I have had no need to remove the decorative caps covering the seals. In the past I have had several of these caps fail at the juncture between the hexagonal part and the circular part.
Works great bought extra to have on hand
Nice to get the part I needed delivered AHEAD of time! Thanks
As advertised and a good replacement for the old cover. Very good description with the size and detentions to order the correct replacement.
The correct part and fast service
Exactly what we were looking for and came very quickly! Just had our brakes done on our coach and the technician over tighten one of the caps. Our manufacturer was going to charge us 4 times what etrailer charges. A BIG thank you!

Barbara
5/19/2019
Caps are still doing their job, couldn’t be happier!
After purchasing the incorrect part from a local trailer dealer, we went to NAPA auto parts and were directed to etrailers! They even gave us the correct part number at NAPA! I ordered the part and the next day was emailed that the part had shipped! It was delivered on time and was the correct part!!

Libby
11/3/2023
Working great!
The caps work properly, but the mediocre review is due to the poor design of the cap. Since it's made of plastic, it's easy to crack the cap when a tire changer removes the wheel and lets it drop straight down. The wheel hits the cap and cracks it. It's happened twice on my rv wheels.
I needed this 'elusive' cap quickly, as I was traveling. etrailer had them in stock, and Helen had them shipped very quickly. Once again, etrailer had the parts I needed at a fair price, and quick shipping. Very Happy!!
This cap is exactly what I needed for my 5th wheel which is equipped with oil filled wheel bearings. It arrived on time, just as all of my purchases from etrailer have. I have been finding what I need for almost ten years on etrailer and remain a satisfied customer!
I ordered 4 caps with O rings to replace the ones currently on my 5th wheel; I wanted to change out the gear lube. I knew from past experience and other's experience that they will leak at the O ring if it is too small in diameter. The O ring needs to be 1/8" in diameter. One of the OEM installed O rings was smaller, 3/32nd in diameter, I believe and it leaked. I was surprised and disappointed to find that 1 of the 4 new caps had the smaller diameter O ring. If I use it without changing out the O ring it would leak like the original one did.
I think that prior to shipping the O rings should be checked for proper sized O rings; I either had 3 that were right and one wrong size or 1 right size and 3 wrong. Either way, they need to be checked.
Identical product OEM worked good got it fast
I ordered two grease caps for my trailer having lost one on the road. E-trailer was easy to order from and I received the caps after jus a few days in the mail. I was able to track the shipment from the time it was shipped to my door. Ordering from E-trailer was a great experience and I will order more from them in the future.
worked as it should,no more leaks.
These caps are awesome and easy to install and remove. One word of warning... do not let the rim slide down and contact the edge of this cap when removing your tire!!!!!! They aren’t strong enough and will shear off the cap at the threads. This in no way is a fault of the cap, just a learning process if you have these caps as they aren’t designed to take a jolt of a dropping rim/tire during removal. It took us breaking a couple caps to figure out that it was “us” breaking the caps.
THESE CAPS HAVE ALL FAILED. THEY BREAK UNDER THE ORING AND START LEAKING AFTER JUST A FEW TRIPS. I HAVE TWO THAT I PURCHASED NEW AND HAVE NOT INSTALLED AND THE ORINGS ARE ALL CRACKED. I RECCOMEND THE DEXTER CAPS.
I converted to oil, only problem I over torqued the caps, causing cracks and leaks. I found leaks before damage, replaced caps installing with less torque no more problems.
Needed to replace this item as one of mine had a slight leak. Always have good experience dealing with trailer. Quick delivery, reasonable prices.

Jerome
8/17/2022
Great. Fluid stays in just fine
In this time of COVID where there are supply shortages and shipping uncertainty, etrailer had the part in stock at a good price and delivered within a couple days...a rare experience these days. I was very satisfied
After this Grease Cap was damaged in a Tire Blowout! I had to rush to find another one to protect my wheel bearings.
Thank Goodness for etrailer. They always come thru for the products I need, when I need them!
Always recommend etrailer for all parts.
They're plastic, not real thick plastic so I can't imagine they're going to last a lifetime but don't have any choice I have to have them to keep the dirt and water out of the bearings. The others I had on there from Kodiak which of the same identical cap in three or four years they started coming apart
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Rene R.
3/28/2017
Great and i do recommend them . Easy to grease the bearing juste à matter to be carefull when taking the Rubber seal off.