MTS Company Polyethylene Gas Tank and Installation Kit - 0051XL


  • MTS Company | Part Number: MTS0051XL
  • Fitment:Direct Fit
  • Capacity:Standard
  • Material:Polyethylene


Replacement polyethylene gas tanks have no welds or seams and are guaranteed not to rust through for the life of your vehicle. With thickness nearly a quarter inch, the insulating qualities of the polyethylene will also reduce condensation and, most importantly, will eliminate rust. MTS' tanks are easy to install, using the original mounting hardware and are Made in the U.S.A.

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Question & Answers

5 Answered questions

Q: My current fuel tank that I have in my CJ has vent valves. If I were to put your fuel tank in my jeep am I going to be able to pass emissions? What do I do with the hoses that went to my vent valves? Answer this question

A: If you look closely at the picture, you will see two brass fittings provided with the fuel tank. The vent hoses go from the vents to the vapor recovery canister. On a different note, some modification is needed to hook the top strap to the existing hole to tighten the tank into the new adjustment hole. I'm very happy with the total outcome of installation.

Answered by Michel on 08/16/2021

Q: will or how much more will this tank hang down past my stock fuel tank , im at stock height with stock tires and rims thanx for your timely reply . Answer this question

A: Hello Willie, The MTS Company Polyethylene Gas Tank and Installation Kit only gives us the dimensions of the 21 gallon tank. But does not give us any information to answer your clearance question.

Answered by Dave on 11/15/2014

Q: I have heard about issues with the 21 gallon tanks expanding out of shape because a batch of them were poorly made?? I need to replace my 21 gal tank in my 85 CJ7...are you aware of any issues??? Thanks! Answer this question

A: Jrock4fsu- Thank you for your question. According to MTS the MTS Company Polyethylene Gas Tank and Installation Kit plastic issue has been resolved for over a year. Some customers have reported distortion issues but these have been solved by replacing the venting gas cap. Once the tank returns to neutral pressure it with go back to its original shape. The tank is guaranteed for 5 years on workmanship and manufacture defects.

Answered by Mike on 02/16/2014

Q: i will be replacing my origing 21 Gal. tank on a 1984 CJ7. will this tank fit in my existing skid plate? this one looks as if it will not. Answer this question

A: The MTS MTS0051XL oversize 21 gallon capacity tanks adapts easily to your original Jeep CJ 15 gallon original skid plate. Kits include skid plate extension brackets for use of stock skid plate and a longer center strap to keep the tank in place. Also included are: new O-ring and lock ring

Answered by Stevie on 06/13/2013

Q: What is required to make this work with a Holly Sniper EFI system? Answer this question

This Product Fits the Following:

  • 1986 Jeep CJ7 Base  
  • 1986 Jeep CJ7 Laredo  
  • 1986 Jeep CJ7 Renegade  
  • 1985 Jeep CJ7 Base  
  • 1985 Jeep CJ7 Laredo  
  • 1985 Jeep CJ7 Renegade  
  • 1985 Jeep Scrambler Base  
  • 1985 Jeep Scrambler Laredo  
  • 1985 Jeep Scrambler Renegade  
  • 1984 Jeep CJ7 Base  
  • 1984 Jeep CJ7 Renegade  
  • 1984 Jeep Scrambler Base  
  • 1984 Jeep Scrambler SR  
  • 1983 Jeep CJ5 Base  
  • 1983 Jeep CJ5 Laredo  
  • 1983 Jeep CJ5 Limited  
  • 1983 Jeep CJ5 Renegade  
  • 1983 Jeep CJ7 Base  
  • 1983 Jeep CJ7 Laredo  
  • 1983 Jeep CJ7 Limited  
  • 1983 Jeep CJ7 Renegade  
  • 1983 Jeep Scrambler Base  
  • 1983 Jeep Scrambler SL  
  • 1983 Jeep Scrambler SR  
  • 1982 Jeep CJ5 Base  
  • 1982 Jeep CJ5 Laredo  
  • 1982 Jeep CJ5 Limited  
  • 1982 Jeep CJ5 Renegade  
  • 1982 Jeep CJ7 Base  
  • 1982 Jeep CJ7 Laredo  
  • 1982 Jeep CJ7 Limited  
  • 1982 Jeep CJ7 Renegade  
  • 1982 Jeep Scrambler Base  
  • 1982 Jeep Scrambler SL  
  • 1982 Jeep Scrambler SR  
  • 1981 Jeep CJ5 Base  
  • 1981 Jeep CJ5 Laredo  
  • 1981 Jeep CJ5 Renegade  
  • 1981 Jeep CJ7 Base  
  • 1981 Jeep CJ7 Laredo  
  • 1981 Jeep CJ7 Renegade  
  • 1981 Jeep Scrambler Base  
  • 1980 Jeep CJ5 Base  
  • 1980 Jeep CJ5 Golden Eagle  
  • 1980 Jeep CJ5 Laredo  
  • 1980 Jeep CJ5 Renegade  
  • 1980 Jeep CJ7 Base  
  • 1980 Jeep CJ7 Golden Hawk  
  • 1980 Jeep CJ7 Laredo  
  • 1980 Jeep CJ7 Renegade  
  • 1979 Jeep CJ5 Base  
  • 1979 Jeep CJ5 Golden Eagle  
  • 1979 Jeep CJ5 Renegade  
  • 1979 Jeep CJ7 Base  
  • 1979 Jeep CJ7 Golden Eagle  
  • 1979 Jeep CJ7 Renegade  
  • 1978 Jeep CJ5 Base  
  • 1978 Jeep CJ5 Golden Eagle  
  • 1978 Jeep CJ5 Renegade  
  • 1978 Jeep CJ7 Base  
  • 1978 Jeep CJ7 Golden Eagle  
  • 1978 Jeep CJ7 Renegade