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Kodiak Hydraulic Brake Hose - 3/16" Male Fittings w/ Stainless Flares - 1/8" ID - 18'

Kodiak Hydraulic Brake Hose - 3/16" Male Fittings w/ Stainless Flares - 1/8" ID - 18'

Item # bh-3mfs-18
Our Price: $47.51
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Shipping Weight: 1.29 lbs
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This flexible, rubber brake line acts as part of a trailer's hydraulic braking system. Stainless steel flares, brass fittings, and a high thread engagement help prevent splits, corrosion, and leaks. Includes 2 standard male flare nut fittings. 1-800-940-8924 to order Kodiak accessories and parts part number bh-3mfs-18 or order online at Free expert support on all Kodiak products. Great prices and Fastest Shipping for Kodiak Hydraulic Brake Hose - 3/16" Male Fittings w/ Stainless Flares - 1/8" ID - 18'. Accessories and Parts reviews from real customers.
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Kodiak Accessories and Parts - bh-3mfs-18

  • Brake Actuator
  • Trailer Brakes
  • Disc Brakes
  • Hydraulic Drum Brakes
  • Brake Lines
  • Kodiak
  • Brake Line Components
  • 18 Feet Long
  • Flexible Brake Hose

This flexible, rubber brake line acts as part of a trailer's hydraulic braking system. Stainless steel flares, brass fittings, and a high thread engagement help prevent splits, corrosion, and leaks. Includes 2 standard male flare nut fittings.


  • Brake line connects hydraulic brake actuator to trailer brakes when used with additional lines, tees, and fittings (sold separately)
  • Flexible design makes hose easier to install than a rigid steel brake line
  • Stainless steel flares resist corrosion and are stronger than brass to reduce splitting
    • Ideal for boat trailers
  • Deep threads improve connection to help prevent leaks
  • Rubber hose meets DOT and SAE standards
  • Brass, male swivel flare nut fittings on both ends
    • Swivels allow flare fittings to turn without the hose twisting
  • Double-crimped brass ferrules securely clamp fittings to hose
  • Open area on flare fittings lets you use a line wrench for better grip
    • Minimizes the risk of stripping threads


  • Hose length: 18'
    • With fittings: 18' 3"
  • Hose inner diameter: 1/8"
  • Fitting size: 3/16"
    • Thread size: 3/8"-24
  • 3-Year limited warranty

Flexible Rubber Brake Hose

This Kodiak brake hose is made of rubber, making it a practical choice for a variety of applications. Because you can easily bend it, a rubber hose is simpler to work with than a rigid stainless steel brake line. This flexibility makes a rubber hose great for use with foldaway trailer tongues because it is 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 this hose is solid rubber, so there are no crevices for debris to enter.

Durable Fittings with Deep Threads

Kodiak Hose Flare

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 this hose 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-216 Kodiak 1/8" ID Rubber Brake Hose - 3/16" MFFN with Male Swivels - 216"

Customer Satisfaction Score:

Customer Reviews

Kodiak Hydraulic Brake Hose - 3/16" Male Fittings w/ Stainless Flares - 1/8" ID - 18' - bh-3mfs-18

Average Customer Rating:  5.0 out of 5 stars   (39 Customer Reviews)

This flexible, rubber brake line acts as part of a trailer's hydraulic braking system. Stainless steel flares, brass fittings, and a high thread engagement help prevent splits, corrosion, and leaks. Includes 2 standard male flare nut fittings.


Brake hose fittings were secure and well made.


Hi George, you're welcome. I have made several purchases from E Trailer, things have always worked out great.


These parts arrived quickly even across the border here in Ontario Canada. They are excellent quality and look as described. I did have to pay Canadian taxes at the post office but that is all part of cross border shopping.


It fit perfectly and was easy to install. Customer service was excellent.


Exactly what I needed!


You can see a video of the installation! Crabbycraig1 on tiktok and YouTube :)


The shipment was extremely quick and the product (brake line) was very high quality. Unfortunately, the length was about 2ft too short, so I'll be looking on etrailer this morning to see if I can find something a little longer.

I appreciate the follow-up email. Great company, and great service!

Etrailer Expert

Rachael H.


Thanks for the follow up, we do have other brake lines available in other lengths. For example # BH-3MFS-20 is 20 feet long.


Got exactly what I ordered one day early


I started with new backing plates and brakes and new drums . Next I connected them with Kodiak rubber break lines and connected them to a Demco actuator. This completed the replacement of my non functioning break system . The entire process was fairly simple with the parts I was able to get from E trailer


Bought 18 ft. brake line to use on an orchard hydraulic pruner. Needed the flexibility of the hose to eliminate tube bending. I couldn't find a place to submit my order online, but when I called, the customer service was excellent. The order was received and shipped out immediately along with updated tracking info all along the way. I have ordered from etrailer before and have always been satisfied, so I will continue to order parts from them as needed.


Needed to replace brake hose on boat trailer. This one was offered at a great price and was the same as what was originally on trailer. It's been installed on trailer for a couple of weeks now and works perfectly


Product as expected from etrailer. Worked great for installation on a Titan 19' trailer when I converted it to a swing tongue last summer. durable product w/ brass fittings.


Received exactly what I ordered and great service!!


Exactly the line I needed to replace what I had on my dual axle disc brake trailer. Very fast shipping and great customer service. I will buy all my trailer parts from here from now on.


Lori was a big help in my purchase of this hose. I replaced one hose and the metal brake line that ran from the actuator to the rear "T" fitting on my Ellis boat trailer.


My new brake hose fit like a
Really quick shipping. Ordered on Monday received on Wednesday and installed on Thursday.
Bleed the brakes tomorrow and I will be ready to go.
I've ordered from etrailer in the past and am very satisfied.


Very happy with the knowledgeable support team. They quickly determined the correct parts to order for my trailer brakes. Received the parts faster than expected. No additional parts were needed. A big thanks to them.


Hose worked great! Used it to replace a steel line after installing a folding boat trailer tongue.


etrailer hands down is the best place for anything trailer related. Their shipping is fire!!!! A+++ all the way !!


Excellent replacement part for my nautique boat trailer!


Same size and fittings as my 2003 karavan. I couldn't be happier with my purchase. thank you etrailer!!!


As adverstised, good product, price, and fast delivery. A third of the price of an OEM replacement.

Thank you!


Good hose. Haven't had any problems with it.



It has been over a year and the brake hose is still doing what I want it to do. Still happy with my purchase.


It was just as advertised and the process was great. The tracking information was amazing!




It works great. Had never heard of a brake line getting blocked, you learn something new.

Show More Reviews

See what our Experts say about this Kodiak Accessories and Parts

  • Parts Needed For Installing Hydraulic Disc Brakes On a Kaufman Triple Axle Wedge Car Hauler Trailer
    For the Kaufman triple axle wedge car trailer you will need to determine if you have 1/2" or 5/8" wheel studs on your 7,000lb axles. This is needed to determine if you need 3 of the 1/2" Disk Brake Kits # KOD66FR or the 5/8" Disc Brake Kits # KOD63FR. Both these will include all the new bearings and seals needed to install to your axles. The Hydrastar Vented Marine Electric Over Hydraulic Actuator for Disc Brakes # HS481-8067 provides you will a plug and play installation for the actuator....
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  • How To Manage Excess Hydraulic Brake Hose Length on Boat Trailer
    Thanks for the photos of your trailer! To manage the excess length of the Kodiak Hydraulic Brake Hose # bh-3mgs-18 you can certainly coil up the excess and secure it with a zip tie. Another option is to route the hose along the trailer so that the excess line is used. However you choose to secure the excess hose, keep in mind that you will want to ensure that the hose does not hang down below the trailer's frame. If you find that a shorter amount of hose can be used, Kodiak also offers...
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  • Is There an 18 Foot Hydraulic Brake Line Hose For 3,500 lb Hydraulic Drum Brakes
    Hi Darryl; thanks for reaching out and yes we do indeed carry an 18 foot hydraulic brake line hose for your actuator to go along with the 3,500 lb Hydraulic Trailer Brake Kit # AKUBRK-35. For that what you need is the Kodiak Hydraulic Brake Hose # bh-3mfs-18. You will also need the mounting hardware for the brakes, which is the Mounting Hardware for 10" Brake Assemblies # BRKH10B.
    view full answer...
  • Replacement Brake Line Options for a Tracker Boat Trailer
    We do carry brake lines and brake line kits, but they are not specific to any one brand or make of trailer. We have kits like the Kodiak Hydraulic Brake Line Kit # 18SI-BLKIT which comes with brake lines, t-fittings and clamps or we have just lines like the Kodiak Hydraulic Brake Hose # bh-3mfs-18. We have both the kits and lines available in different sizes and materials. I have linked our selection for both the kits and lines for you to check out and see if we have what will fit your...
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  • Recommended 18' and 7' Long Brake Lines With 3/16" Fittings That Use 3/8" x 24 Thread
    I recommend replacing your current 17' brake line with the Kodiak Hydraulic Brake Hose - 3/16" Male Fittings w/ Stainless Flares - 1/8" ID - 18' # bh-3mfs-18, and your two 7' lines with two of the Kodiak Hydraulic Brake Hose - 3/16" Male Fittings w/ Stainless Flares - 1/8" ID - 7' # bh-3mfs-7. Each of these brake lines have the same 3/16" fittings with 3/8" x 24 thread so they will be an exact replacement, and the rubber hose with stainless steel fittings will hold up great in salt water...
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Employee Lindsey S
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