Replacement Grease Cap for Kodiak 7,000-lb, 7,200-lb, and 8,000-lb Disc Brake Kits

Part Number: KPCAP

In Stock

$33.88

Thank you! Your comment has been submitted successfully. You should be able to view your question/comment here within a few days.

Error submitting comment. Please try again momentarily.

Product Images

kodiak trailer bearings races seals caps oil cap replacement grease for 7 000-lb 200-lb and 8 disc brake kits

kodiak trailer bearings races seals caps

kodiak trailer bearings races seals caps replacement grease cap for 7 000-lb 200-lb and 8 disc brake kits

kodiak trailer bearings races seals caps oil cap

kodiak trailer bearings races seals caps kpcap

Show All (8) Product Images

Show Fewer Product Images

Customer Photos

Replacement Grease Cap for Kodiak 7,000-lb, 7,200-lb, and 8,000-lb Disc Brake Kits customer photo

Show All (1) Customer Images

Show Fewer Customer Images

Videos

Review of Kodiak Trailer Bearings Races Seals Caps - Caps - KPCAP

Show All (1) Videos

Show Fewer Videos

Need help with installation?

Locate installers near me

Replaces 1 grease cap with O-ring and plug for your 7,000-lb, 7,200-lb, or 8,000-lb Kodiak hub-and-rotor disc brake kit. Great Prices for the best trailer bearings races seals caps from Kodiak. Replacement Grease Cap for Kodiak 7,000-lb, 7,200-lb, and 8,000-lb Disc Brake Kits part number KPCAP can be ordered online at etrailer.com or call 1-800-940-8924 for expert service.

Kodiak Trailer Bearings Races Seals Caps - KPCAP

Replaces 1 grease cap with O-ring and plug for your 7,000-lb, 7,200-lb, or 8,000-lb Kodiak hub-and-rotor disc brake kit.

Features:

Fits 7,000-lb, 7,200-lb, and 8,000-lb Kodiak hub-and-rotor disc brake kits
- Fits 2.25" spindle only
Clear polycarbonate cap functions as either a grease cap or oil cap
Watertight O-ring seal
Thread outer diameter: 2-7/8"-12 O.D.
Requires 2-3/16" socket or wrench for installation
Includes cap, O-ring, and plug

021-202-00 Replacement Grease or Oil Bath Cap for Kodiak 7K, 7.2K, or 8K Brake Sets - Large Clear

Replaces Rotor/Hub8KPCAP and 8001

Video of Replacement Grease Cap for Kodiak 7,000-lb, 7,200-lb, and 8,000-lb Disc Brake Kits

Videos are provided as a guide only. Refer to manufacturer installation instructions and specs for complete information.

Video Demo Kodiak Trailer Bearings Races Seals Caps Caps KPCAP

Review of Kodiak Trailer Bearings Races Seals Caps - Caps - KPCAP

Video Transcript for Review of Kodiak Trailer Bearings Races Seals Caps - Caps - KPCAP

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..

Customer Satisfaction Score:

97% were satisfied with this product

3% of customers were not satisfied

Product did not meet expectations
Wrong item was ordered
Did not arrive in time

3% of customers were not satisfied

Product did not meet expectations
Wrong item was ordered
Did not arrive in time

4.7

162 reviews

5 Stars		(139)
4 Stars		(13)
3 Stars		(4)
2 Stars		(2)
1 Star		(4)

by: BR 07/08/2026 One Year Later

I was unaware there are metal ones, fortunately I was able to purchase directly from an RV tech. These plastic ones have a tendency to break and I would not recommend. I am sure the RV manufacture uses these because they are cheaper than the metal ones, but if you need a replacement I would suggest using the metal ones.

by: Rene R 03/28/2016

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

Click to Enlarge

Rene R. One Year Later

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.

by: Lester 03/21/2026

Seals went in fine. So far so good

by: Libby 11/02/2022

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 One Year Later

11/3/2023

Working great!

by: Barbara 05/19/2018

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 One Year Later

5/19/2019

Caps are still doing their job, couldn’t be happier!

by: Jeff 05/05/2025 One Year Later

Fit was great. Exact match to factory cap

by: 589980 Michael 11/28/2025

This item did not fit. Obviously I ordered the wrong part. Nothing wrong with the part just did not fit.

by: Fred 06/09/2017 One Year Later

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.

by: Steve A 02/02/2020 One Year Later

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!!

by: Philip 05/23/2025

Item was as described and works well. Fast shipping.

by: Jim F 12/05/2020 One Year Later

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!

by: Chris 12/26/2018

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.

by: Gordon 08/30/2014

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.

by: Pat W 04/28/2020 One Year Later

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.

by: Fred RYLAND 06/21/2018 One Year Later

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.

by: Steve 09/09/2023 One Year Later

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.

by: Jerome 08/16/2021

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 One Year Later

8/17/2022

Great. Fluid stays in just fine

by: Jeffrey 09/21/2022

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.

Jeffrey T. One Year Later

9/22/2023

Outstanding. Had to replace this cap after a blowout. Still working Strong.

by: Collin 09/25/2020

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

by: Gary 08/12/2023

E Trailer has always been right with price and excellent service.
I have received my merchandize in a timely manner.

I will always look toward Etrailer first to find what I need.

Thanks
Gary

by: William 09/20/2021

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

by: Lance 01/28/2019

The excellent product description made it easy to pick the correct part I was looking for. Pricing, purchasing, and shipping were all great.

by: Jeff G. 09/29/2025

Works Great!

by: Robert 08/26/2023 One Year Later

Replacement cap for Kodiak Disc Brake.

by: Ray 07/13/2022 One Year Later

Fast shipping, great product and great Customer service

162

true

Show More Reviews

See what our Experts say about this Kodiak Trailer Bearings Races Seals Caps

Do you have a question about this Trailer Bearings Races Seals Cap?

Replacement Bearings, Brake Pads, and Rotors for Dump Trailer With 7k Axles
Hi Trevor; if you have 9/16" bolts you need the Kodiak 13" Hub and Rotor # KHR1389D with bearing kit # DX38ER. For 1/2" bolts you need the # KRH1378D with bearing kit # BK3-200. Both can use the Replacement Grease Cap # KPCAP. The replacement brake pads are the Kodiak Ceramic Brake Pads - 7,000 lbs to 8,000 lbs # K250CP or if you want the stainless steel back # K250CP-SS. What do you use your dump trailer for?
view full answer...
How Much Torque is Applied to a Kodiak Grease Cap for Installation
I spoke to my contact at Kodiak and they informed me that a socket should not be used when removing or installing the grease cap like part # KPCAP as this would likely cause damage to the polycarbonate material used in it's construction. If the cap was over tightened then you can use a crescent wrench to loose it. The cap should then only be hand tightened. The same holds true for part # RG04-230.
view full answer...
Grease Cap for Kodiak KHR1389D and Spindle for 2021 Forest River Riverstone 39RKFB
Hello Jonathan; the correct grease cap for the # KHR1389D is the Replacement Grease Cap for Kodiak 7,000-lb, 7,200-lb, and 8,000-lb Disc Brake Kits # KPCAP. The hub and rotor are designed for 7,000 - 8,000 lb axles. Our spindles only go up to 7,000 lbs so if you have an 8k axle we don't have one with a high enough rating. Otherwise you can use the #42 E-Z Lube Spindle w/ Flange for 5.2K to 7K Trailer Axles # TRU37FR. If you aren't sure, the capacity should be listed on the axle tag.
view full answer...
Is There a Bearing Buddy for a Hub Bore with 2.25 Inch Diameter
If your hub bore is 2.25" in diameter like the # KPCAP then the closest Bearing Buddy Grease Caps would be the # BB2240, which measure 2.24", but this is commonly found to be compatible with Dexter 5200-lbs axles with an outer race 1729 in the hubs. I'm not quite sure this is what you're looking for so you'd want to measure your hub bore using a digital calipers like the # PTW80157 to make sure that you're getting the right ones. Those # BB2240 are push in Bearing Buddies so you'd also...
view full answer...
Does The Kodiak Disc Brake Kit K2HR858DE Use Grease Or Oil To Lube The Hub Bearings?
The Kodiak Disc Brake Kit # K2HR858DE is able to be used as a grease lube hub or a oil lube. The Bearing Kit # DBRKHW850 will provide you with bearings, oil seals and lug nuts needed for the Kodiak kit to use as a oil bath hub. The Kodiak Synthetic Bearing Oil for Oil Bath Hubs # XLPROLUBE will better work to keep the bearings lubed. I find that it is also easier to service as you can physically see the oil in the hub. The Bearing Kit # DBRKHW85G will provide you with the bearings,...
view full answer...
Filling a Kodiak Oil Bath Disc Brake Hub and Oil Compatibility
I spoke with my contact at Kodiak and he said Amsoil Severe Gear 75W-140 would be acceptable on their oil bath hubs. When filling the hubs, you will want to remove the rubber plug from the oil cap and fill the hub to the bottom of the hole. When storing a trailer, it is a good ideal to jack up the trailer to remove some or all of the weight off of the tires. This may not always be possible, especially with larger trailers, but it is a good idea. My contact at Kodiak said you should not...
view full answer...
Replacement Oil Cap for Dexter Hub # 21-35
The Kodiak Oil Cap # KPCAP you are looking at is a replacement cap for the Kodiak Pro Lube Kit. The oil cap you need is the Redline Oil Cap, Plug and O-Ring for Dexter 7-9K Trailer Axles # RG04-230. This will replace the oil cap on your trailer axles with Dexter 8-bolt hubs. I attached a review video of this oil cap you may want to check out.
view full answer...
Availability of Trailer Hub Cap for Mastercraft Boat Trailer that is Threaded
We have a few options for replacement oil caps for trailer hubs but I would need to know the axle capacity of the trailer or the diameter of the current cap. I attached a link to a page that has all of the options we have but for example the part # KPCAP fits 7k axles and has a diameter of 2.875 inches.
view full answer...
Parts Needed To Convert 5TH Wheel With Tandem 7K Axles To Disc Brakes and 17-1/2" Wheels Oil Lubed
The Kodiak Disc Brakes # KOD33FR are the brakes you will need to convert your 7,000lb axles to use disc brakes. This kit provides the brake assemblies for one axle so you will need 2 kits for your 5th wheel. It fits a standard #42 spindle with a 2.25" Oil Seal # XLPROLUBE2440SEAL. If your axles have the smaller 2.125" seal you will need 2 of the Seal Kits # RG06-090 to fit your axle. If you can provide me with the serial numbers off your Dexter axles I can verify the seal size. The brakes...
view full answer...
Disc Brake Kit Compatible With Lippert 8,000 Torsion Axles
Yes, the Kodiak Disc Brake Kit # K2HR858AE will fit your Lippert 8,000lb torsion axle. Your Lippert axle uses a #42 spindle which is what the Kodiak brake kit is designed to fit. Do note that this kit uses 5/8" wheel studs and you may have 9/16" or 5/8" studs on your Lippert axle. Please let me know if you only have 9/16" lugs. You will need the Bearing Kit # DBRKHW850 to complete the hub. And I do recommend keeping an extra Grease Cap # KPCAP on hand in the event it becomes damaged or...
view full answer...
Parts Needed To Add Electric Over Hydraulic Disc Brakes On Tandem Axle Trailer With Lippert 8k Axles
I would be happy to recommend all of the parts you need for adding electric over hydraulic disc brakes to your tandem axle trailer with 8000lb Lippert axles. All of the 8000lb disc brake rotors we offer use the inner bearing # 25580 and outer bearing # 02475, so you will want to make sure that your spindles use the same bearings. The easiest way to do this is by removing one of your hubs and looking for the bearing number stamped in the face of each bearing as shown in the included picture...
view full answer...
What Size Socket is Needed to Tighten the Kodiak XL ProLube Oil Bath Cap # KPCAP
I went out into our warehouse and pulled a Replacement Cap # KPCAP to measure it and found that you would need to use a 2-1/4 inch socket. I did an internet search and was able to find companies that sold sockets this size.
view full answer...
Replacement Plastic Cap and Seal for 8K EZ Lube Axle
The Replacement Grease Cap for Kodiak 8,000-lb Disc Brake Kits # KPCAP is designed to fit a 2.25 inch spindle and has a thread outer diameter of 2-7/8 inch by 12 thread. We also have the Oil Cap, Plug and O-Ring for Dexter 7-9K Trailer Axles # RG04-230 with the same dimensions. We don't have the Viton O-ring outside of the cap replacement kit. Either of these will work on the EZ Lube axles.
view full answer...
Installation Torque Value for Kodiak Replacement Grease Cap KPCAP
Since the Kodiak grease/oil cap # KPCAP is made of tough UV-resistant polycarbonate you don't need to worry about the torque recommendation on the item. Polycarbonate is a very tough material and you can rest assured that Kodiak would not indicate an inappropriate torque value on their product. Note also that torque is always specified as a range of values, not one specific value. On initial installation a new part will likely snug up at the lower end of the torque range. If it has been...
view full answer...
Difference Between the Oil Bath Caps # XL-PLCAP and # KPCAP
The difference between the two replacement oil batch hub caps you referenced part # KPCAP and # XL-PLCAP is the size of hub they are designed to fit.
view full answer...
Replacement Oil Bath Cover for Trailer Hub
We most likely have a cover that is compatible. I will need the exact outside diameter of inside of the cover where it meets the hub to confirm a fit. I have linked the page to all of the options we currently carry to assist.
view full answer...
Oil Seals and Outer Cap To Change From Grease Axle Bearing To Oil
To ensure I get you the right parts, I need to know the hub bearing numbers printed on the front of the inner and outer bearings as well as the grease seal number. If we can find a match, I can help you with the oil kit. If you can't find the numbers on the bearings, you can use a digital caliper to assist with the inside diameter of the bearing and the outside diameter of the axle spindle. Please see attached photo for assistance.
view full answer...
Replacement Plug Recommendation for Replacement Grease Cap # KPCAP
The replacement plug is not available so you'd need a new cap part # KPCAP.
view full answer...
What Is the Hub Bore of the Kodiak 13" 8K Disc Brake Kit
The Kodiak 13" 8K Disc Brake Kit part # K2HR858AE is designed to be used with the Grease Cap for Kodiak 8,000-lb Disc Brake Kits part # KPCAP which has a threaded diameter of 2-7/8". Therefore, that would be the hub bore opening on the hub. I am not sure if this answered your question but if you can provide more insight on what it is you are trying to do that may better help me understand.
view full answer...

Do you have a question about this Trailer Bearings Races Seals Cap?

Info for this part was:

Expert Research:

Jackie C

Expert Research:

Jameson C

Expert Research:

Adam R

Expert Research:

Sarah H

Installed by:

Jeff D

Updated by:

Adele M

Updated by:

Wilson B

Updated by:

Hannah L

Updated by:

Mike S

Updated by:

Carrie F

Video Edited:

Chris R

At etrailer we provide the best information available about the products we sell. We take the quality of our information seriously so that you can get the right part the first time. Let us know if anything is missing or if you have any questions.