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Derale High-Temperature Replacement Hose for Engine - 1/2" Inner Diameter - 25' Long

Derale High-Temperature Replacement Hose for Engine - 1/2" Inner Diameter - 25' Long

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Able to handle high temperatures and high pressure, this replacement hose is perfect for most engine cooler applications. Inner diameter is 1/2". 1-636-306-4830 to order Derale accessories and parts part number D15799 or order online at Free expert support on all Derale products. Guaranteed Lowest Price and Fastest Shipping for Derale High-Temperature Replacement Hose for Engine - 1/2" Inner Diameter - 25' Long. Accessories and Parts reviews from real customers.
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  • Reviews (1)
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Derale Accessories and Parts

  • Engine Oil Coolers
  • Hoses
  • 1/2 Inch Inner Diameter
  • Derale
  • 25 Feet Long

Able to handle high temperatures and high pressure, this replacement hose is perfect for most engine cooler applications. Inner diameter is 1/2".


  • Able to withstand high temperatures and high pressure
  • Crafted to OE specifications
  • Designed for engine applications only
  • Made in USA


  • Inner diameter: 1/2"
  • Length: 25'
  • 1-Year warranty

15799 Derale Engine Oil Replacement Hose, 1/2" ID x 25' Long

Item # D15799

Video of Derale High-Temperature Replacement Hose for Engine - 1/2" Inner Diameter - 25' Long

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

Video Transcript for Review of Derale Engine Oil Coolers - Replacement Hose - D15799

Hello everybody. This is Jeff at Today, we're gonna take a look at this Derale 25 foot long high-temperature transmission and engine oil replacement hose. Now, this hose here is used when installing a transmission or engine oil cooler to your vehicle. The hose is able to withstand the high temperatures and the high pressure of the oil cooler systems. This is designed to OEM specifications, and it is designed for transmission and engine oil applications only.

Want to zoom in up close just to show you the hose itself. This does offer a 300 psi burst strength rating, a 300 degree Fahrenheit temperature rating. It is made in the USA. Does have a inner diameter on the hose of a half an inch, the outer diameter of 7/8 of an inch, and the total length on this part here is 25 feet. But that should do it for the review on the Derale 25 foot long high-temperature transmission and engine oil replacement hose..

Customer Reviews

Derale High-Temperature Replacement Hose for Engine - 1/2" Inner Diameter - 25' Long - D15799

Average Customer Rating:  5.0 out of 5 stars   (1 Customer Reviews)

Able to handle high temperatures and high pressure, this replacement hose is perfect for most engine cooler applications. Inner diameter is 1/2".


Hoses are exactly what I needed for transmission fluid. Note that the rolls aren't exactly 25' but vary by a few inches. Quality is consistent as I have purchased many rolls.


See what our Experts say about this Derale Accessories and Parts

  • Can Derale Remote Dual Oil Filter Mount Kit be Mounted on Vehicle Frame Under Passenger Door
    With enough hose you could mount the remote dual filter kit # D15707 anywhere. You will want to make sure that the filters and hoses so not drop below the frame. Basically anything hanging too low is susceptible to road debris. The safest location would be up under the hood somewhere. Near to the top of the engine compartment would provide ample protection and accessibility. For hose you can use # D15799 which is a 25 foot long piece. We also have hose clamps # D13008 you can use if you...
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  • Will Derale Remote Dual Oil Filter Mount Kit , # D15707, Fit on 1999 Lexus RX300
    On the Derale Remote Dual Oil Filter Mount Kit, # D15707, it allows you to put your filter in a convenient location for easier oil changes. It is a dual oil filter, so it will give you additional filtration and increased oil capacity, it does not allow you to bypass the oil filter. I would also recommend the Derale High-Temperature Replacement Hose for Engine Applications - 25' Long, # D15799,and the Derale Stainless Steel Hose Clamps (4 Piece), # D13008.
    view full answer...
  • Can a Derale Transmission Cooler be Used with an Allison 2200MH Transmission on a Motorhome
    On the Allison transmissions you would need to go to a larger hose and fittings to avoid any problems when using a transmission cooler such as # D13403. But what I recommend is to use core # D54012 which does have -12AN fittings already. The largest inner diameter hose we have is 1/2 inch such as # D15799 so if you do need larger hose it would need to be obtained locally.
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  • Type of Hose and Hose Clamps for Use with Oil Filter Relocation Kit
    Oil pressure can vary as you can see on the gauge of your dashboard when the engine is running. With our oil filter relocation kits like the part # D15707 that you referenced we recommend high temp hose like the part # D15799 and hose clamps like the part # D13008 and there isn't any issue with the lines or pressures. I would not run this type of hose without hose clamps though as that's most likely going to create a huge mess and potentially damage the engine.
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  • Replacing the Hoses That Come With the Derale Direct-Mount Remote Cooler Kit # D20561
    Yes, you can certainly replace the hoses to the Derale Direct-Mount Remote Cooler Kit # D20561 with a transmission hose by removing the clamps and using standard worm drive clamps. You can also reuse the fittings on the ends of the hoses as well. I confirmed this with my contact at Derale. We also have replacement hoses that you can find with parts # D15740, # D15700, and # D15799.
    view full answer...
  • Power Steering Cooler Recommendation for an Off-road Rock Crawler
    Typically, in automotive applications, the addition of a supplemental cooler will drop the fluid temperature around 10 to 20 degrees Fahrenheit. Keep in mind, this is with the cooler mounted directly behind a vehicle grille, receiving good airflow. For your situation, I would recommend a different product. The power steering cooler, # D13310, that you referenced will help, but the lack of airflow will probably not give you the results you are looking for. Instead, I recommend looking...
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  • Transmission and Engine Oil Thermostats for a 2013 Ford Explorer XLT Adding Tow Package
    I can help you protect your Explorer XLT, even in the cold climates of Wisconsin. The Derale # D15902 you were looking at is a great choice for your 2013 Ford Explorer XLT. This kit already includes an engine thermostat adapter, so all you will need is the transmission thermostat to complete your setup. The Derale # D15719 is the transmission thermostat kit with fluid control you are looking for. Since you will have to cut the return line as well as the input line, you will need the...
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  • Recommended Fan-Powered Transmission Cooler For 2003 Toyota Sequoia
    The transmission cooler kit I recommend for your 2003 Sequoia is the Derale Hyper-Cool Remote Cooler kit, part # D15960. This kit includes the hardware to connect the cooler and the mounting hardware. This cooler is a stacked-plate cooler with a 500-CFM fan to make sure your transmission fluid stays as cool as possible. The great thing is this is a remote mount kit that can be mounted anywhere you have room under the hood. The cooler measures 13-inches wide x 10-inches tall x 5-5/8-inches...
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  • Thermostat Bypass for Use with a Derale Transmission Cooler
    I recommend Derale thermostat # D13011 with mounting bracket # D25793, and extra hose # D15799 when installing the Derale transmission cooler # D13503. The thermostat comes with the threaded ports and hose clamps so you will not need those separately. The thermostat will allow 90 percent of the fluid to bypass the supplemental cooler until the fluid temperature reaches 180 degrees. So if you live in a cold climate and don't want to wait as long for the vehicle to warm up this thermostat...
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  • Hose that is Compatible with Engine Oil for Air Conditioning System on a 1958 Plymouth Savoy
    It depends on the hose. The part that you came from, # T0778500, is a fitting. Hose for high temperature engine applications such as # D15799 would work with engine oil just fine. This is 25 feet worth of hose. It is available in different lengths: 8 feet # D15740 5 feet # D15701 All of these lengths have a 1/2 inch inner diameter.
    view full answer...
  • How to Determine if Transmission Cooler Will Fit In Front of the Radiator on a 1999 Chevy Silverado
    For transmission coolers you have to go by their dimensions compared to the available space where you want to install it. Stacked plate cooler # D51908 is 13 inches across, 7-7/16 inches tall, and 2 inches deep. If you have more than this much space in front of the radiator then it will fit your 1999 Chevy Silverado. This particular cooler is not a kit so it doesn't come with any hose or mounting components. To mount it you can use # D50020. For hose you can use # D15799 and clamps #...
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  • Oil & Transmission Coolers for Ford F-53-Based Class A RV
    Based on my research the 1998 Fleetwood Bounder M-36S Class A RV with the Ford 460 engine is based on the Ford F-53 chassis. Coolers are not vehicle-speciofic; you can install as large a cooler as you have space to mount one. Coolers are also not fluid specific; the same cooler model can be used for engine oil and for transmission fluid or even power steering fluid. Derale Class III cooler # D15551 includes a spin-on adapter in the required 3/4-16 thread. This will be a good choice for...
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  • Small Transmission Cooler Recommendation for a 2013 Ford Explorer
    The cooler that comes with the part # D15602 can be used as a transmission cooler for your 2013 Ford Explorer. Since you do not need the oil cooler parts that come with it you would be better off ordering the part # D51008, two of the part # D98202, rubber hose # D15799, and hose clamps # D13008.
    view full answer...
  • Best Remote Mount Transmission Cooler with Fan for a 2006 Chevy Silverado 2500HD Duramax/Allison
    For your 2006 Chevrolet Silverado 2500HD with Duramax engine and Allison transmission, I highly recommend the Derale Hyper-Cool Extreme Remote Cooler Assembly part # D15870 as it consists of a stacked plate-fin cooler which is the best design on the market as it is most effective and it comes with an 800 CFM fan that will provide more air to the cooler than will ever be required for your setup. In order to install this you will need the following: Derale Remote Mounting Kit for Transmission...
    view full answer...
  • Can I Mount Derale 10-Row Stacked-Plate Cooler to Bumper of 2002 Jeep Liberty
    I spoke with my contact at Derale and he confirmed that the Derale 10-Row, High-Performance, Stacked-Plate Cooler # D51008, which you referenced, is a fit for your 2002 Jeep Liberty and can be mounted to your front bumper. To complete the installation you will want two of the barb hose fittings, part # D98202, replacement rubber hose # D15799, hose clamps # D13008 and insta-dapt radiator adapter # D13004. The mounting kit is # D50020.
    view full answer...
  • How To Reduce Both Engine Oil and Transmission Fluid Temps On A 2005 GMC Sierra 2500 While Towing
    I have attached a list of parts that I recommend for your 2005 GMC Sierra 2500 to help with cooling both the engine oil and transmission fluid while towing. Derale Hyper-Cool Remote Transmission Cooler Kit part # D15960 Derale Hyper-Cool Remote Engine Cooler Kit part # D15660 Derale Snap-In Radiator Adapter Fitting part # D13035 Derale High-Temperature Replacement Hose part # D15799 Derale Stainless Steel Hose Clamps part # D13008 1/2" Barb to 1/2" Barb Union Fitting part (Local Auto...
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  • Transmission Cooler Recommendation for 2007 Dodge Ram with Cummins Diesel
    For a full size diesel truck you'd need all the cooling power you can get if you plan to bypass your factory cooler. Stacked plate coolers are the most efficient styles of coolers around so the part # D54010 would be your best option. To complete the installation you will want two of the barb hose fittings, part # D98202, replacement rubber hose # D15799, hose clamps # D13008 and insta-dapt radiator adapter # D13004. The mounting kit is # D50020.
    view full answer...
  • Will the Derale Spin-On Remote Oil Filter Adapter Work on a 1964 Ford Interceptor Y block 312 CID
    The Derale Premium Spin-On Adapter Kit - 3/4-16 Engine Filter Threads, item # D35703, is designed to replace the adapter that goes on the engine block filter landing. My reference guide only goes back to 1965 but I am confident that the 3/4-16 threads will work on your 1964 Ford motors. 312 CID translates to 5.1 Liters which is most likely what they now call the 5.0 liter Ford engine. Along with the spin on adapter you will need the Derale 1/2 inch NPT Male x 1/2 inch Barb Straight Hose...
    view full answer...
  • Most Efficient Transmission Cooler Recommendation for 2015 Chevy Silverado 1500
    The most efficient style of transmission cooler is the stacked plate style like the part # D54012 that you referenced. So for the largest one in this style you'd want the # D54010 which measures 13W x 13-7/8T x 2D Inch and you'd have an extremely efficient cooler. To complete the installation you will want two of the barb hose fittings, part # D98202, replacement rubber hose # D15799, hose clamps # D13008 and insta-dapt radiator adapter # D13004. The mounting kit is # D50020.
    view full answer...
  • Recommended Transmission Cooler for a 2013 Chevy Tahoe
    I have the perfect transmission cooler option for you. Generally speaking, the best transmission cooler to use would be the largest one you have available space for. The best place to install a transmission cooler is in front of the radiator/condenser behind the grill on your 2013 Chevy Tahoe. I recommend using the Derale 25-Row, High-Performance, Stacked-Plate Cooler part # D52508 because the plate and fin technology incorporated into this transmission cooler is far more efficient than...
    view full answer...
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  • Recommended Stacked Plate Engine Oil Cooler for a 2008 Dodge Caliber SRT
    The Derale Stacked-Plate Engine Oil Cooler Kit w/ Sandwich Adapter (Multiple Threads) - Class III, item # D15605, will work on the 2008 Dodge Caliber SRT. The engine filter thread size is one of two sizes on the caliber,3/4-16 or 20 mm x 1.5mm, so you will need to determine which (included) sleeve nut will be used. If you would like to use a larger cooler, relocate your oil filter to a more accessible location and install a stacked plate oil cooler you can use the Derale Oil Relocation...
    view full answer...
  • Fittings and Other Parts Needed to Install Transmission Cooler D52508 in a 2010 Chevy Tahoe
    Derale Snap-In Radiator Adapter Fitting # D13035 is recommended when installing a transmission cooler on the 2010 Chevy Tahoe. I have linked a video featuring this fitting for you. In addition to the fitting and the core, # D52508, you will also need a bracket kit # D50020 to mount the cooler, hose clamps, # D13008, and about 10 feet of hose, # D15700. We also have a 25 foot length of hose, # D15799, if you want to err on the side of caution; especially if you are also installing a bypass...
    view full answer...

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