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Replacement Master Cylinder Filler Cap for Titan Model 60 Actuators

Replacement Master Cylinder Filler Cap for Titan Model 60 Actuators

Item # T4480701
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  • Reviews (68)
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Titan Accessories and Parts - T4480701

  • Brake Actuator
  • Master Cylinder Parts
  • Caps
  • Titan


  • Fits Titan Model 60 and Aero 7500 actuators
  • Also fits Dico Model 60 actuators
  • Has built-in O-ring

068-147-00 Titan Replacement Master Cylinder Filler Cap for Hydraulic Actuating Couplers

Replaces 4480701

Customer Reviews

Replacement Master Cylinder Filler Cap for Titan Model 60 Actuators - T4480701

Average Customer Rating:  4.8 out of 5 stars   (68 Customer Reviews)


This was exactly what I needed for my Tie-Down engineering model 66 brake actuator. Perfect fit. Took a little longer than some other ordering options but the price was right.


I needed a remote brake fluid reservoir cap for a 1963 Studebaker Hawk GT. None of the Studebaker parts vendors stock the cap so I figured I’d give yours a try and it fit perfectly. It almost looks original


Great product details, knowledgeable sales staff and fast shipping!


The threads on the actuator are striped so I don't know if cap will work:(

I will have our customer service team reach out to you.
-- Etrailer Expert Jenny N - 12/28/2021


The master cylinder cap, T4480701, threaded perfectly on another type of master cylinder I was rebuilding.
The very nice feature of this part is the fact that it's designed with a diaphragm. The diaphragm helps keep the moisture laden atmosphere out, very important when using brake fluids that are hygroscopic.


bought an extra cap because when I bought a new master cylinder (that came with a cap also). Nice think is these caps are better then the original one I had from 1993 which had a small hole for venting on only ruined the dot 3 fluid with water. New caps have a rubber plug to prevent this


Fit perfectly!


During my annual maintenance, I ordered a few products for my boat trailer. Web site made it easy to find what I was looking for and the items were reasonable and shipped quickly. I'll be back.

Trailer is going strong. Been fishing quite a bit this summer. Its nice to not have to worry about a break down and focus on catching fish.
Steve C - 07/23/2016


The hydraulic brake cap was a direct replacement for our Four Winns boat trailer and was easy to install and get the brakes functional again. E-trailer customer service was great when another part on our order was delayed they made sure the rest of the order proceeded so as not to delay repairs.


Product is exactly as described.Good service,fast delivery quality product.Recommend doing business with trailer.

The cap has worked perfectly on our fishing trailer. Great product
Jude S - 11/11/2017


the cap for the fluid resovior on my boat traler brakes was exactly what i needed. I am well satified with the part. All the parts for the entire brake system wer in stock but the cap at first i was told was not available. That did not make sense. trying again with a different tech and a part number i found online from a different sourse helped get one ordered. Then took three week. I recomend stocking this item.


This fits Titan 60 and 7500 actuators. I destroyed the original just trying to remove it. Glad I found a replacement. Local trailer places couldn't even get their hands on it.


The item arrived promptly, was packaged well and was exactly as advertised. Do not hesitate to purchase fr9m etrailer! I know it will continue to be our go to for trailer parts and accessories!


Etrailer was very responsive to fulfilling my back ordered items and saving me many many dollars of downtime with my business. Lindy was excellent at her job and I can't thank her and her team enough. The items I received were correct and shipping met my time line
Thanks to all the teamwork I'm a very satisfied customer. Del Chase


As with everything I have ordered from etrailer, this is a perfect fit. The staff at etrailer is very helpful and always doing their best to accommodate customers. I will continue to shop for my trailer needs at etrailer!


A nice upgrade to the old metal one, really nice seal so you don’t over tighten. Finish is nice edges and sharp corners for great tool fit.

Customer service is great and shipping is very fast!


Fits and works great.
etrailer,com sent
it on time and quickly.


Easy purchase and timely shipping. Definitely will purchase from in the future.


Ordered new master cylinder kit and this extra cap. The kit and cap were precisely as described. Shipping and communication were first rate, very prompt. Good price too.


The new cap fit perfectly, definitely a direct replacement. My old one had stripped threads and I don't think it was ever a good fit. This new one screws in easily and tightens up snugly.


It was a little filler cap. they didn't make much off of it but still did a outstanding job looking for it . I looked all over and called several places. They found it sent it to me fast. Very pleased with there service. Will definitely use again highly recommend


Good service.


Great company to do business with


Replacement cap for a cracked cap - perfect fit and fast shipping.


exactly what I needed & great customer service & shipping. Great business to deal with.

Show More Reviews

See what our Experts say about this Titan Accessories and Parts

  • Replacement Cap for Leaky Titan Model 60 Actuator
    That rubber plug looking piece is not part of the cap assembly. It would not get attached to the cap. Where exactly is the fluid leaking out of? If it's through the top of the cap it is bad and would need to be replaced with part # T4480701. If it's leaking around the threads that would indicate that the cap just may not be tightened down all the way or the o-ring is bad.
    view full answer...
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  • Replacement Master Cylinder Cap for a Titan Aero Model 6000 Actuator
    Your Titan Aero 6000 will use master cylinder cap # T4480701. There are a few different caps used on various Titan actuators but yours does use this one.
    view full answer...
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  • What is the Diameter of the Replacement Master Cylinder Filler Cap for Titan Model 60 Actuators
    I went out to the warehouse and pulled replacement cap # T4480701 to take some measurements for you. The overall diameter is 1-1/2 inches. The diameter at the threads is 1-1/4 inches. And the overall height is 1 inch.
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  • Rubber Piece for Cap on Titan Model 60 Actuator
    I went out to the warehouse to pull the Replacement Master Cylinder Filler Cap # T4480701 for your older Titan Model 60 Actuator. I was able to find that the rubber piece you described is actually the diaphragm insert that is sealed within the cap. Most likely, something occurred inside the reservoir that essentially forced or ripped this piece from the cap. It is not something that can be inserted back into the cap because it is designed to be sealed and should not be easily removed. I...
    view full answer...
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  • Replacement Cap for Master Cylinder in Brake Actuator on Parker 4000 Grain Wagon
    We do offer replacement caps for master cylinders in surge couplers like the Titan model 60. For a model 60 the replacement cap is part # T4480701, and this also fits Titan Aero 7500 and Dico model 60 actuators as well. All of the replacement caps we have are displayed on the linked page. If you can find a brand and/or part number on your master cylinder/actuator it should be easy enough to identify the correct cap. Please feel free to submit photos if you have trouble identifying the...
    view full answer...
  • Troubleshooting Seized Filler Cap On Titan Model 60
    For the Titan model 60 filler cap, a little penetrating oil may be wise around the seal and tap the cap to let the vibration move the fluid. If you have a 1-1/4 inch socket with a breaker bar, that is probably your best option. If not, some channel locks or vice grip may help. A final straw option would be to use a pipe wrench which would mess up your cap, but may remove it without drilling it out. The Replacement Master Cylinder Filler Cap for Titan Model 60 Actuators # T4480701, may...
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  • Troubleshooting Brake Actuator Leaking from Weep Hole
    If your brake lines were blocked, you would not have proper function on all your brake assemblies. The lockout solenoid would not be an issue leading to weep hole leaking if your brakes are working because it would back pressure up into the master cylinder versus allowing it to flow to the brakes. If the weeping is only happening when you are using the lockout function, then it may simply be too much fluid in the master cylinder. If you brakes are working properly and there is weeping...
    view full answer...
  • Dimensions and Thread Depth of Titan Replacement Master Cylinder Filler Cap
    The Replacement Master Cylinder Filler Cap for Titan Model 60 Actuators # T4480701 has an outer diameter of about 1-1/2 inches and at the threading 1-1/4 inches. The threaded depth is 3/8 inch and the overall depth under the lip is 1/2 inch.
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  • Replacement Master Cylinder Cap Needed for Dico Actuator
    I believe the master cylinder cap you are needing for your Dico actuator is part # T4480701 which fits the common Dico Model 60 actuators. If you don't have a Dico Model 60 actuator please let me know what you have and I can make additional recommendations for you.
    view full answer...
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  • Is the Replacement Master Cylinder Filler Cap Replacement T4480701 Coarse or Fine Threaded
    If you look at the picture I have included of Replacement Master Cylinder Filler Cap # T4480701 I would say that is coarse threaded. But regardless this cap specifically fits Titan and Dico model 60 actuators and Titan Aero 7500 actuators. If you have one of those you are good to go. If you have something different then I cannot guarantee it is a fit.
    view full answer...
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  • Brake Fluid Leaking Around Master Cylinder Fill Cap On Titan Aero 6000 Surge Brake actuator
    The Master Cylinder Filler Cap # T4480701 on your Titan Aero 6000 brake actuator does have a small pin hole that works with the diaphragm in the cap to release excess pressure in the reservoir. It may be that either fluid is leaking from this hole in the cap or that the rubber o-ring on the cap is damaged allowing fluid to get past. If your rubber o-ring is damaged and causing the leak you should just replace the cap and o-ring at the same time. This will reduce the risk of the diaphragm...
    view full answer...
  • Availability of Replacement Cap for Titan Brake Actuator
    As far as appearance goes that most closely resembles the Replacement Master Cylinder Filler Cap for Titan Model 60 Actuators # T4480701. In order to make sure this fits I recommend taking some measurements. The # T4480701 has an overall width of 1-1/2" and the diameter at the threads is 1-1/4". The overall height is 1" with the height of the threads measuring 3/8". As long as the threaded part has the same measurements it should fit your actuator. See the diagrams below showing these...
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  • Replacement Parts for DICO Model 60 Actuator Coupler
    We do offer several replacement parts for the DICO model 60 actuator coupler but just the seals and O-rings are not offered. For example, part # T4335800 is a replacement Ball Latch. Please note that part # T4480701 is a filler cap with built-in o-ring. I appreciate that you do not want to replace items that you yourself have the experience and skill to service so hopefully you can find the items you need among these.
    view full answer...
  • Titan 60 Actuator Master Cylinder Replacement
    It sounds like your master cylinder is damaged. It shouldn't be leaking fluid and whatever portion of the reservoir that is floating around is not something that would have just came unscrewed. Since you have a Titan Model 60 you would want the Replacement Master Cylinder # T4395100.
    view full answer...
  • Replacement Master Cylinder Filler Cap
    The closest we have is the Replacement Master Cylinder Cap for Titan BrakeRite Brake Actuators # T4830600 which has a threaded diameter of 1-5/8" and is for Titan BrakeRite actuators.
    view full answer...
  • Replacement Filler Cap for Titan Aero 6000 Hydraulic Trailer Brake Actuating Coupler
    The correct replacement master cylinder cap for your Titan Aero 6000 hydraulic brake actuating trailer coupler is part # T4480701.
    view full answer...
  • Replacement Master Cylinder Filler Cap for Titan Model 60 Actuator
    The floating plug looking piece is actually the diaphragm insert that is in your master cylinder's cap. For one reason or another these rubber inserts occasionally fall out of the master cylinder caps and the simple solution is to get a replacement cap. For your Titan Model 60 # T43397007K actuator you will need Replacement Master Cylinder Filler Cap for Titan Model 60 Actuators # T4480701.
    view full answer...
  • Replacement Master Cylinder Parts For Titan Model 60 Brake Actuator
    I would recommend using a spray lubricant like WD-40 to try and loosen the cap on the master cylinder of your coupler actuator. Using a tool like vise-grips should allow you to remove the cap from the housing. If you are able to remove the cap and find it needs to be replaced, you would order part # T4480701. If you are still unable to remove the cap, we offer replacement master cylinders for the Titan Model 60 coupler actuators. If you have drum brakes on your trailer and you have a...
    view full answer...
  • Replacement Master Cylinder Caps for Titan Brake Actuating Trailer Couplers
    There are a few different replacement caps for the various Titan actuators. Replacement # T4830601 that you referenced fits model 10 and 20 actuators. Since it doesn't fit you must have one of the others. Cap # T4480701 is for model 60 and Aero 7500 actuators. It has an overall width of 1-1/2 inches. The threaded part that screws in is 1-1/4 inches. And then there is # T1755600 for model 6 actuators. It is pretty unique compared to the others since it screws around the mating part of...
    view full answer...
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  • Replacement Master Cylinder Cap for Titan Hydraulic Trailer Brake Actuator
    It's hard to tell which cap you need exactly from the picture but I measured the caps we have that might work for you. Part # T4480701 for Titan Model 60 actuators measures 1-1/4 inches at the threads like you previously saw. Part # T4830601 for Titan Model 10 and 20 actuators measures 1-5/8 inches. As does part # T4830600 which is for the Titan BrakeRite. Can you tell which actuator you have? If there's nothing on it to indicate it's model send me a few pictures of it and I'll see...
    view full answer...
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  • Actuator Cap For Venture Boat Trailer Actuator
    We do not currently have any parts that work exclusively on Venture Boat Trailer actuators, but we do have caps and other replacement parts from other manufacturers that might work for you. I did some looking and all of our actuator reservoir caps seem to be either 1-1/4" or 1-5/8" threaded diameter. I did take a look at the Venture website and they don't seem to have direct replacement for this cap either. If you haven't measured with a calipers like # PTW80157 you may want to re-measure...
    view full answer...
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  • Master Cylinder Replacements for Titan Actuators
    I was unable to find an order number for you so I'm not entirely sure what you have, but were you referring to the Replacement Master Cylinder Cap with Diaphragm for Titan Model 10 and 20 Brake Actuators # T4830601? I only ask because there is not a model 0100, but there is a Model 10 such as part # T2477600. A master cylinder cap will only fit the direct model it is designed for so you will need to know your actuator's model in order to get the correct cap. The Replacement Cap for...
    view full answer...

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Info for this part was:

Employee Michael H
Expert Research:
Michael H
Employee Jameson C
Expert Research:
Jameson C
Employee Adam R
Expert Research:
Adam R
Employee Adele M
Updated by:
Adele M
Employee Wilson B
Updated by:
Wilson B

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