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  1. Trailer Bearings Races Seals Caps
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  3. Caps
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  5. 6000 lbs Axle
  6. 7000 lbs Axle
Oil Cap Kit - 21-40
Redline

Oil Cap Kit - 21-40

Part Number: RG04-260
In Stock
$40.59
Retail:$68.48
You Save: 41%
Trailer Bearings Races Seals Caps
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Great Prices for the best trailer bearings races seals caps from Redline. Oil Cap Kit - 21-40 part number RG04-260 can be ordered online at etrailer.com or call 1-800-940-8924 for expert service.
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  • Reviews (276)
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  • Videos (1)
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Redline Trailer Bearings Races Seals Caps - RG04-260

  • Caps
  • Oil Cap
  • 6000 lbs Axle
  • 7000 lbs Axle
  • 2.56 Inch O.D
  • Redline
  • 2.56 Inch


Features:

  • Fits 6,000-lb and 7,000-lb oil bath hub and drums (5 spoke)
  • Includes 10-59 O-ring
  • Outer diameter of the cap: 2.563"
  • Quantity: 1 oil cap kit


150950 Redline Oil Cap Kit





Video of Oil Cap Kit - 21-40
Video Thumbnail Video Player Dialog

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




Video Transcript for Hands-On with the Oil Cap Kit

Today we're going to take a look at the oil cap kit for 6,000 pound and 7,000 pound Dexter axles. This oil cap is a screw-in plastic cap. It's a clear cap so you can see the oil level through it. It is designed to fit 6,000 pound and 7,000 pound Dexter axles with oil bath hub and drums. The outer diameter of this cap is measured 2.563 inches. The kit does come with the oil cap itself, comes with the rubber plug that you take this off to fill with oil and put it back on to seal it, and it comes, as you can see here, with the rubber O-ring on it to help seal it when you screw it in to the hub assembly.

That should do it for the review on the oil cap kit for 6,000 pound and 7,000 pound Dexter axles.

Customer Satisfaction Score:

Ratings & Reviews

4.7

276 reviews
Review sort icon

by:

Great product and fast service. I will be back I have other trailers and I have told several or maybe even many people about you. Thank you so much These were mostly bearings and seals for a heavy trailer so I don't have any pictures. Take my word for it though with them



by:

Perfect is all I can say about this product. Exact match and extremely easy installation. Cannot say enough about the ease of ordering and fast delivery from etrailer. Will certainly be a returning customer.



by:

Merchandise was exact as description. Will continue to purchase from ETRAILER.



by:

Fast shipping!



by:

Right parts the Right price



by:

Good product, but not sure of the fit, may be to shallow



by:

A little over a year and still working. Just make sure to use a torque wrench when installing them. I set my torque wrench to 20 lbs and then I gave a tiny snug. It probably ended at XX lbs.

Make sure to use the torque wrench. It is extremely easy to over-tight these caps and you wont notice it was over torqued after a few months later when they crack between the thread and the cap.



by:

Finding the part was easy on the eTrailer web site. The price was reasonable and the delivery fast.



by:

Very Happy right on time



by:

etrailer had all the axle info for the correct bearing, seals, and races but sent me huge oil caps that were no where near the correct size. I called to get replacements and am still waiting on a call back two business days later. Now my equipment trailer will be out of service for a week. I'm going to a local trailer dealer next time.



by:

Thank you for shipping so quick.



by:

Good replacement cap for a great price



by:

etrailer is the only outfit that had what I needed for hayes axles. If I need anything for my trucks or any of my trailers this is the come too place. Not my first time here & won't be the last. Thanks Justin



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Exactly what I was looking for



by:

Great products and quick turn around time !



by:

Great service, price, fast delivery. Will order from them again.



by:

Everything was as advertised.



by:

The part was exactly what I ordered and arrived on time and in the package.



by:

My parts were a little difficult to find on the website, but in all fairness other suppliers were having a tough time finding anything I needed.
My parts were delivered in s very timely manner, and received in great shape.



by:

Everything fit as hoped for and arrived in a timely fashion , I will use you again for sure



by:

Product was timely delivered and fit my trailer well.


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

  • Replacement Caps for Oil Bath Hub With 2-3/4 Inch Diameter at the Threads
    We do offer a grease cap for an oil bath hub that has a 2-7/8 inch diameter at the threads, part # RG04-230, however the total height of the cap is 1-3/4 inches. This is the closest thing we offer to the oil bath cap you referenced.
    view full answer...
  • How To Add Grease To ST-400 Valcrum Threaded Grease Caps
    Hello Quan, thanks for reaching out. It sounds like you have one of the ST-400 Valcrum Threaded Grease Caps like part # VA63JR. If so, to add grease to this you pop out the light grey center plug to reveal the grease zerk underneath.
    view full answer...
  • Replacement Sight Glasses Or Bearing Buddies For A 2003 Boatmate Trailer
    Hello Steve, I can certainly point you in the right direction. Unfortunately, we do not have a way to look up a serial number of a trailer in order to know what sight glasses or bearing buddies you would need. Only the manufacturer of the trailer would be able to provide that info. Do you happen to know the weight capacity of each axle? That will help to narrow it down a lot. Or if you were to take one of the current oil caps and measure the OD of the threaded portion, that would tell us...
    view full answer...
  • Availability Of Screw-In Oil Bath Cap With 2.77" ID
    Hello Curtis, thanks for reaching out. We do carry some screw on oil bath caps, but nothing in the size you mentioned. The closest we have would be the Oil Cap # RG04-260 which is a 2.563" ID. From there the next closest thing would be a 2.875" diameter like part # VA23JR. We do have some 2.7" caps, but they are drive-in grease caps, not oil caps.
    view full answer...
  • Oil Bath Hub Cap for Mastercraft Boat Trailer
    The oil caps we offer are for much higher capacity axles than what you have based on the bolt pattern of your trailer wheel. That said there's a chance the part # RG04-260 would fit but this has an outer diameter of 2.563 inches. You'd have to verify that first. Or if you have something different let me know and I'll see what size we have that could fit.
    view full answer...
    Image 1 for
  • Recommended Trailer Brake Conversion to Oil Bath Disc Brakes
    To convert your 7K #42 axle from drum brakes to hydraulic disk brakes with wet bearings I recommend the HydraStar Disc Brake Kit w/ Actuator for Tandem Axle Trailers - 13" Hub/Rotor - 8 on 6-1/2 - 7K # HSE7K-T1. The 10-10 Grease or Oil Double-Lip Seals - Qty 2 # RG06-090 will work with the Oil Cap Kit - 21-40 # RG04-260. This is the best option for your conversion.
    view full answer...
  • Replacement Wheel Studs for AL-KO Hayes 09080587 10K Axle Hub
    From my research, it looks like your 10K Axle AL-KO Hayes hub #09080587 uses six 5/8 x 2-3/4 inch wheel studs for single and flat face wheels. The correct replacement is our Trailer Hub Wheel Stud, Screw-In # 7-232. Below are some other direct replacement parts for this hub assembly: Outer Bearing # 28580 Outer Race # 28521 Inner Bearing # 25580 Inner Race # 25520 Oil Cap Kit # K71-859-00
    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...

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


Info for this part was:

Employee Mike L
Expert Research:
Mike L
Employee Jameson C
Expert Research:
Jameson C
Employee Jeff D
Installed by:
Jeff D
Employee Chris R
Video Edited:
Chris R
Employee Wilson B
Updated by:
Wilson B

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