Hello all. I am selling sets of 6 4-port "upgrade" fuel injectors for '99+ XJs. Part number is 0 280 155 784. This is the most popular upgrade injector for a Jeep Cherokee 4.0. These are typically called the "Neon injectors" but they come from a wide range of Dodge/Chrysler cars and mini-vans.
The advantages of upgrading to these injectors is they use a 4-port fuel delivery as opposed to the single port of stock XJ injectors and this provides a more atomized fuel delivery which results in quicker starts, a smoother idle and better throttle response and acceleration.
I have completely disassembled, soaked, flushed and electronically tested these injectors. I have installed new micro-filters in the tops and put on new o-rings. I reuse the plastic pintle caps on the tips but clean then completely and make sure they have no cracks or chips.
I am asking $70 shipped per set. I can accept PayPal or a money order by mail. I am located in Maryland. If you have any questions about the upgrade or about injectors in general please do not hesitate to send me a PM. Although this is my first ad on this forum I have been selling them actively for years online.
The advantages of upgrading to these injectors is they use a 4-port fuel delivery as opposed to the single port of stock XJ injectors and this provides a more atomized fuel delivery which results in quicker starts, a smoother idle and better throttle response and acceleration.
I have completely disassembled, soaked, flushed and electronically tested these injectors. I have installed new micro-filters in the tops and put on new o-rings. I reuse the plastic pintle caps on the tips but clean then completely and make sure they have no cracks or chips.
I am asking $70 shipped per set. I can accept PayPal or a money order by mail. I am located in Maryland. If you have any questions about the upgrade or about injectors in general please do not hesitate to send me a PM. Although this is my first ad on this forum I have been selling them actively for years online.


