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Kodiak Hydraulic Brake Line Kit - Tandem Axle - 20'
(98 reviews)
Price: $271.33
In Stock
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- All Info
- Reviews (98)
- Q & A (0)
- Photos
Kodiak Accessories and Parts - 20TA-BLKIT
- Brake Actuator
- Trailer Brakes
- Disc Brakes
- Hydraulic Drum Brakes
- Brake Lines
- Kodiak
- Brake Line Kits
- Flexible Brake Hose
- Tandem Axle
- 20 Feet Long
Brake line kit lets you run brake fluid from your surge brake actuator to your trailer brakes. Great for disc brakes and torsion axles. Includes 20', (2) 7', 3-1/2', and (2) 1-1/2' flexible hoses, plus fittings and hardware.
Features:
- Brake hoses and fittings let you run brake fluid from your surge brake actuator to your trailer brakes
- Designed for use on tandem-axle trailers with drum or disc brakes
- Flexible design makes hoses perfect for use with foldaway trailer tongues, disc brakes, and torsion axles
- Rubber hoses meet DOT and SAE standards and are easier to install than rigid steel lines
- Brass, male, swivel flare nut fittings on ends of each hose have deep threads
- Deep threads improve connection to help prevent leaks
- Swivels allow flare fittings to turn without the hose twisting
- Open area on flare fittings lets you use a line wrench for better grip
- Minimizes the risk of stripping threads
- Fittings are double-crimped onto hoses
- Corrosion-resistant, brass fittings connect hydraulic lines
- Female inverted flares (FIF) at each port
- Heavy-duty loom clamps secure hoses to your trailer's frame
- Kit includes:
- (1) 20' Long flexible brake line
- (2) 7' Long flexible brake lines
- (1) 3-1/2' Long flexible brake line
- (2) 1-1/2' Long flexible brake lines
- 1 Cross fitting
- 1 Tee fitting
- (20) 1/2" Loom clamps
Specs:
- Hose inner diameter: 1/8"
- Fitting size: 3/16"
- Thread size: 3/8"-24
- 3-Year limited warranty on hoses and fittings
Hydraulic Brake Line Installation for Tandem-Axle Trailers
- (A) 20' Long flexible brake line (BH-3MFS-20)
- (B) 7' Long flexible brake lines (BH-3MFS-7)
- (C) 1-1/2' Long flexible brake lines (BH-3MFS-1-5)
- (D) Tee fitting (BH-T-3FIF)
- (E) Loom clamps (A0500)
- (F) Cross fitting (BH-X-3FIF)
- (G) 3-1/2' Long flexible brake line (BH-3MFS-3-5)
Flexible Rubber Brake Hoses
Kodiak brake hoses are made of rubber, making them a practical choice for a variety of applications. Because you can easily bend them, rubber hoses are simpler to work with than rigid stainless steel brake lines. This flexibility makes rubber hoses great for use with foldaway trailer tongues because they are less likely to kink or break when bent. In addition, rubber hoses allow for a wide range of motion so articulating parts can effectively function. These qualities make rubber hoses better suited than steel lines for trailers with torsion axle suspension systems and trailers that have disc brakes.
Stainless steel brake lines have braided exteriors, which can not only wear against exterior surfaces, but also against the interior lining of the hose if dirt gets underneath the steel braid. And if the braid on a stainless steel line tears, it can cut into the hose lining. The exterior surface of these hoses is solid rubber, so there are no crevices for debris to enter.
Durable Fittings with Deep Threads
Kodiak brake hoses have corrosion-resistant brass fittings with stainless steel flares. These fittings have a gap built into them that allows room for a line wrench - also called a flare nut wrench - to slide over the line and down to the nut. This type of wrench grips the nut better than a standard open-ended wrench so there is less chance of stripping the threads as you tighten down the nut.
The stainless steel that is used to create the flares on these hoses is stronger than brass. As a result, these fittings are more durable than ones made entirely of brass. The stainless flares are primarily designed to keep the fittings from splitting when you tighten them down, but they offer absolute rust protection as well.
Kodiak's fittings have deeper threads than many other fittings on the market to provide a higher thread engagement. Deeper threads offer an advantage when used with fittings that have the same thread depth. These Kodiak fittings will work with most fittings on the market, but when they're used with other Kodiak fittings, the result is a stronger connection with fewer leaks.
BH-3MFS-20 Kodiak 1/8" ID Rubber Brake Hose - 3/16" MFFN with Male Swivels - 240"
BH-3MFS-7 Kodiak 1/8" ID Rubber Brake Hose - 3/16" MFFN with Male Swivels - 84"
BH-3MFS-3-5 Kodiak 1/8" ID Rubber Brake Hose - 3/16" MFFN with Male Swivels - 42"
BH-3MFS-1-5 Kodiak 1/8" ID Rubber Brake Hose - 3/16" MFFN with Dead Swivels - 18"
BH-X-3FIF Kodiak Forged Brass Cross Fitting for 1/8" Diameter Brake Hose - 3/16" Female Inverted Flare
BH-T-3FIF Kodiak Forged Brass T-Fitting for 1/8" Diameter Brake Hose - 3/16" Female Inverted Flare
A0500 Metal Loom Clamp - 1/2"
Customer Satisfaction Score:
99% were satisfied with this product
1% of customers were not satisfied
- etrailer mistake
- Product did not meet expectations
- Wrong item was ordered
Ratings & Reviews
4.6
98 reviews
by:
Scott
03/12/2026
The existing steel brake lines on my dual-axle trailer were severely rusted from constant launching in salt water. The Kodiak Hydraulic Brake Line kit is made up of rubber hosing and brass/bronze tubing connections. All of the parts were included, especially for the 4-way diverter to distribute the hydraulic fluid to the other side of the trailer. The only thing I needed to do was mount the tubing with stainless steel hanger straps along the trailer.
by:
John
05/06/2026
The brake line kit had manufacturing flaws, some of which I was able to correct. Specifically, some of the brake line flared ends were not sufficiently flared. The amount of flare at the line end is readily visible in the photo and I was able to measure the difference with a micrometer. When connecting to the T and Cross fittings, the flare nut bottomed out before the flare end seated. I was able to file the T and Cross fittings to allow the flare nuts greater penetration which solved this issue.
Once that was fixed, I found that the brake line kit did have one brake line that leaks where the metal tubing comes out of the rubber hose. I am trying to get someone at eTrailer to respond to my emails to find out if this can be exchanged or if I just have to buy a replacement, but have not yet got a response.
I have not yet been on the road with the new brake set, as I am waiting on resolving the leaking brake line issue.
Once that was fixed, I found that the brake line kit did have one brake line that leaks where the metal tubing comes out of the rubber hose. I am trying to get someone at eTrailer to respond to my emails to find out if this can be exchanged or if I just have to buy a replacement, but have not yet got a response.
I have not yet been on the road with the new brake set, as I am waiting on resolving the leaking brake line issue.
by:
Fishingator of Jax
04/21/2021
Replaced the steel brake lines on my boat trailer with the Kodiak hydraulic hose kit. The materials arrived quickly with all the necessary parts you need to install it. Install was very easy and only took 1/2 day to remove the existing lines, install the new lines and bleed the system. Been using the trailer regularly and it is flawless. I recently removed the existing drum brakes and installed a Kodiak disc brake set up which was just as easy and also performs excellent. Great product at a better price!
Fishingator J.
4/22/2022
I have had no issues with the Kodiak disc. brakes or the Kodiak brake hose set up.Nice to know if someone stops quickly in front of me, I will not have an issue with stopping with 6600lbs+ of boat behind me. Ordered four sets of rotors, pads, calipers and bearings for my other boat. I just asked Chris to figure out what I needed and within 30 minutes I got a complete list and pricing. Thats Good Service! Thanks Chris!
by:
Arthur
05/29/2025
Everything fit like a glove. For parts in two days. Will continue to use etrailer.
Brooke M.
6/3/2025
It's looking great, Arthur! Thanks for sharing the photo :)
by:
Stephen
12/28/2025
In my case it was a great fit for what I wanted to do. I found the disk brake fairly easy to install and worked great, well spent money with great support on YouTube from etrailer technicians. I’m really happy!
Nick S.
12/29/2025
That is great to hear! I am glad it is working well and was easy to install! What kind of trailer did you install this on?
by:
Arthur S.
09/22/2015
The new Kodiak brake line kit was extremely easy to install. No instructions needed....now that's what I call a mans job! Ordering was easy, shipment was right on time. This my second purchase from etrailer.com and I will certainly make future purchases as needed and recommendations to friends and family. Here is a picture of my trailer after the install.
by:
TJ
02/08/2025
This is an excellent product. I have RVed for 20 years. I grew up with trucking background with company over 60 trucks. I switched my 40 foot fifth wheel from drum to disc. There is no more concern about getting stopped at red lights or an accident. These brakes will get you slow down without issue. I have no other issues with the brakes since I installed that was 15,000 miles ago. If I get another unit with drum brakes, I will have them installed within days of purchase.
Gwendolyn Y.
2/10/2025
Wow, you definitely put these brakes to the test, TJ! What was one of your favorite location that you traveled to wit your 5th wheel?
by:
Dave
12/18/2025
Appreciate the guidance. The call back and the confirmation. Excellent customer service.
by:
Tim
06/09/2025
Brake line kit that is plug and play does not fit a fifth wheel with the overhang. The line is too short and the seven pen don’t work with it. It has to be a different design to hook up. Other than that. It was a nice fit.
by:
Dan C.
01/29/2020
This brake line kit (20TA-BLKIT) was easy to install and after 1 year on my tandem axle boat trailer, used in salt water, still looks brand new. No rust, corrosion or leaks and functions as it should. Much better than the steel lines I replaced. I would recommend this brake line kit.
Dan C.
1/30/2021
Still working after a year.
by:
Jeremy
02/08/2026
worked well to replace some old rusted out steel lines.
by:
Brian Grad
10/14/2016
The kit install went smoothly because everything fit the way it should. The instructions were accurate and the torque values included helped make it tight.
Much better braking experience than just electric brakes. I took my time replacing all the wheel/hub assemblies but the effort paid off. I highly recommend the Kodiak kit.
Much better braking experience than just electric brakes. I took my time replacing all the wheel/hub assemblies but the effort paid off. I highly recommend the Kodiak kit.
Brian G.
10/17/2017
Ive put about 9,000 miles on the 5th wheel since converting to the hydraulic disc brakes and Im so much more confident in the handling and performance of the brakes and suspension. It was not the easiest job to do but I took my time and did it right so I know I set everything up correctly. Now I have real stopping power, no fade. Good products, durable and built to last. Thanks, Brian
by:
Vasile Viorel
02/12/2026
Best service , knowledgeable people
by:
Stew
08/25/2022
My concern is not with the quality of the brake line kit but in it's engineering. I understand the push for ease of installation, but I do not agree with it's outcome with these brake lines. Having so much rubber brake line under a trailer leads to 1) huge potential for damage from road debris, especially with extra lines simply coiled up 2) massive loss of brake pedal feel from the enormous amount of rubber which expands under to the very high PSI of a disc brake system. Seeing this I decided to retrofit automotive soft lines for each wheel and bent/flared hard lines for the rest of the trailer. 4' of soft line vs 50'
by:
Claude
02/21/2026
Rick was very good
by:
Scott M.
02/02/2017
The products were ordered on Sunday night late, delivered by Wednesday. Converting drum surge brakes to disc, electric over hydraulic on a boat trailer for 26ft Sea Ray boat. I had everything including Titan brake actuator, 4 kodiac rotor and caliper conversion kits with bearings, and new lines installed by Thursday evening. Installation was straight forward, everything fit perfectly. One of the calipers was malfunctioning (not releasing). I called customer service and I had a new one within two days, it's now installed and working great!! Great product! Awesome service!!
Lines all fit great!! Seem to be very high quality!!
Lines all fit great!! Seem to be very high quality!!
by:
Leigh
05/08/2021
Installation was easy, one year after putting on the brakes on I have had zero issues. Money well spent and I would recommend etrailer and kodiak brakes to anyone who wants to switch from drum brakes to hydraulic brakes
by:
Tim
03/31/2017
Well worth the price, have had these for 1 year. No signs of rust or deterioration. My old brake lines rusted away in 2.5 years. Trailer only goes in salt water. Highly recommend these brake lines. Very easy to install
by:
Rick C
09/21/2016
It's always great doing business with etrailer. All the best products and great service too. The Kodiak brake line kit is better than what came on the trailer from the original manufacturer.
by:
John
12/11/2023
Great product. Trailer now has reliable brakes and stops like it should. Very pleased with the results. Installation was time consuming but I wanted to do it right and took my time.
by:
Boater Jim
07/01/2016
I purchased this as I had an older trailer and adding brakes to the second axle. This was a super easy set up over using steel! Zero frustration laying it out and easy to install. Great system
by:
Rob T.
01/27/2017
Stripping down a 16 year old 21 ft. salt water use trailer - from end to end. The folks @ etrailer were very knowledgeable, and helpful in my decision making. From placing the order, to tracking the order, to the way the items were packed for transit. Other distributors could learn from these people; in regards to customer service, following up, both office and warehouse. Unloaded the products last night, nothing short, all quality in regards to their products, with great pricing. The installation videos are a big bonus, and something I'll be taking advantage of, during the restoration. Will follow up with picture, (before and after) when I'm done
by:
Brett S
04/01/2019
Purchased new brakes and brake lines for my boat trailer. I made an error in my order and Katie was very responsive on making it right. Quick delivery and no border challenges on way to Canada. I will definitely make trailer my first stop in the future.
by:
Bill G.
07/02/2017
Fast, simple way to replace brake lines on a trailer. Easier than steel lines!
by:
Sid
06/10/2021
I have been on 600 and 3,000 mi trips in the last year with the new brake setup. It works great. Much better than old electric drums. So far so good.
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Info for this part was:
Expert Research:
Mike L
Expert Research:
Jameson C
Expert Research:
Jeffrey L
Installed by:
Jeff D
Written by:
Tammy D
Video Edited:
Chris R
Updated by:
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Updated by:
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Test Fit:
David F
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Lazer S.
3/17/2026
Glad it's working well for you, Scott! What kind of trailer did you install this on?