Search  for anything...

11025 1 1/2" Diesel Auxiliary Install Kit

  • Based on 333 reviews
Condition: New
Checking for the best price...
$57.95 Why this price?
New Year Deal · 45% off was $104.69

Buy Now, Pay Later


As low as $9.66 / mo
  • – 6-month term
  • – No impact on credit
  • – Instant approval decision
  • – Secure and straightforward checkout

Ready to go? Add this product to your cart and select a plan during checkout.

Payment plans are offered through our trusted finance partners Klarna, Affirm, Afterpay, Apple Pay, and PayTomorrow. No-credit-needed leasing options through Acima may also be available at checkout.

Learn more about financing & leasing here.

Free shipping on this product

Returnable until Jan 31, 2025

To qualify for a full refund, items must be returned in their original, unused condition. If an item is returned in a used, damaged, or materially different state, you may be granted a partial refund.

To initiate a return, please visit our Returns Center.

View our full returns policy here.


Availability: In Stock.
Fulfilled by Amazon

Arrives Tuesday, Feb 10
Order within 4 hours and 38 minutes
Available payment plans shown during checkout

Protection Plan Protect Your Purchase
Checking for protection plans...

Features

  • Provides Consistent Gravity Feed of Fuel
  • Controls Fuel Level from the OE Tank
  • Valve Shut Off to Avoid Overflow of Gas from Fuel Tank
  • Designed to Work with 3/8-Inch Female Pipe Thread Drain Fitting
  • All Hoses and Hardware Included

Description

Southern Trucks Diesel Auxiliary Install Kit is designed to connect your auxiliary diesel fuel tank to your truck's fuel filler neck in order to provide consistent gravity feed of fuel. The kit controls the fuel level going into your OEM tank to prevent overfill. Easy installation. Kit contents: hose, clamps and fittings and is intended for diesel fuel only. Aluminum Tee 1.38 inch Inner Diameter, 1.50 inch Outer Diameter.

Brand: Southern Truck


Material: Aluminum


Fit Type: Vehicle Specific


Item dimensions L x W x H: 10.5 x 2 x 3.5 inches


Exterior Finish: Machined


Manufacturer: Southern Truck


Global Trade Identification Number: 43


UPC: 859737005143


Brand Name: Southern Truck


Manufacturer Part Number: 11025


Fuel Type: Diesel


Compatible with Vehicle Type: Truck


Fit Type: Vehicle Specific


Item Dimensions: 10.5 x 2 x 3.5 inches


Exterior Finish: Machined


Material Type: Aluminum


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Tuesday, Feb 10

Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.

To initiate a return, please visit our Returns Center.

View our full returns policy here.

  • Klarna Financing
  • Affirm Pay in 4
  • Affirm Financing
  • Afterpay Financing
  • PayTomorrow Financing
  • Financing through Apple Pay
Leasing options through Acima may also be available during checkout.

Learn more about financing & leasing here.

Top Amazon Reviews


  • Small kit but effective.
Installed easily, had to shorten just a little the intake pipe on just one end to allow the provided thick rubber hose to slide in! Use lithium grease on rubber and easily slide into the pipe. Working great.
Reviewed in the United States on January 31, 2020 by Rio Acosta Sr.

  • really a great product
Don't kink the hose and mount the tube as close to flat as you can with the float valve straight up. check hose clamps after the first couple of tanks of fuel.
Reviewed in the United States on November 5, 2024 by Tony

  • Absolutely wonderful fits my 2019 Chevrolet 3500 dually Duramax
What can I say Great package to the job, the only thing I would recommend Is that the hose to be a more UV friendly hose and/or have a specific section that is covered so that way the UV light does not crack it. Had my installed for a couple months now it does its job absolutely wonderful, I did change out my ball valve though so that way I can get a 90° angle with a bigger handle, but the rest of it still does its job perfectly, I do just recommend that they make the hose more compliant with being able to get even by the sun, as I did have to throw a rag on top of the section that is exposed to daylight in order to prevent the sun from cracking it, as a piece of tubing that I left out in the sun before I installed it did show signs of sun crack, so I do recommend that you find a way to put a covering over it or just a rag or something to assist it there so that way it does not get eaten by the sun ... show more
Reviewed in the United States on October 15, 2020 by Blake

  • Easy install. I had to remove the check valve
Fit well. Easy install. I had to remove the check valve, as it was restricting flow and tended to stick in the closed position, otherwise, works as intended.
Reviewed in the United States on August 2, 2017 by Kindle Customer

  • Works great. Installed in a 2017 Nissan Titan XD Cummins.
Combined with a 50 gallon RDS auxiliary diesel tank, it has greatly extended our range when towing our camper, literally no more worries about making it to the next fuel stop in the middle of nowhere. I can't speak to the install process, I paid a local diesel shop to do the work, but they didn't complain and came in right on the low end of their install quote, so I don't think they ran into any problems. ... show more
Reviewed in the United States on October 25, 2021 by It's me It's me

  • Works in my 2019 Ford F250
I installed in my 2019 F250. I wanted to install an RDS auxiliary/transfer tank. Fit and made the installation extremely easy.
Reviewed in the United States on October 30, 2021 by My Torino

  • This is JUNK!
This product is terrible had to pay mechanic twice to install. First one leaked from time it was installed. Company wouldn’t respond to my email about the problem. Had to buy the whole new kit just to get the value part. Had to pay again to have it installed. Works worse than the first one. Pours fuel all over in truck. Don’t buy this junk! I would give it a negative stars if they had them. ... show more
Reviewed in the United States on November 4, 2019 by Carla Frog

  • Good value
Easy to install, very simple design. We installed an electric valve that closes when the truck is off but I really don’t think the system needed it!
Reviewed in the United States on June 7, 2019 by Peter D.

Can't find a product?

Find it on Amazon first, then paste the link below.
Checking for best price...