[bmwlover]

Which one is better? Both are index 12.

[RocketSurgeon]

Those part numbers are both for the exact same part, they just have different part numbers on them. The #079 part number is the retail part, what you order at the parts counter. The #937 is the exact same part ordered for recall or warranty work, but priced significantly cheaper. BMW caught on to people ordering the half-priced #937 and clamped down on that.

Here's an original article from FCP on this:
"It's a well known fact that direct fuel injectors in N54, N63, and S63 applications are an important replacement item. In fact, BMW has even had several problems with these injectors where some vehicles in the United States are covered with a 10 year, 150,000 mile warranty on the injectors. It is also a well known fact that these fuel injectors are expensive to replace and in most cases you must replace all of your BMW injectors in one cylinder bank if the index number on the pre-installed injectors are below a certain number. However, as of October 2016 a new injector was released through BMW as part of a TSB specifically for the S63 V8 found in the E70 X5M as well as the E71 X6M. The new part number cannot be found in the ETK BMW catalog. The service bulletin specifically says to order p/n 13538648937 instead of 13538616079 which is the expensive injector sold by dealers and most online retailers. Both the #937 and #079 injector are index 12 and the part number on the injectors both read "13537585261" and then "-12" to notate the index number. With that said, what exactly is the difference in these injectors?

"Nothing" is the simple answer. Both injectors as referenced are index 12 and come packaged the exact same way. Initially the #937 injector had a stamping on the metal housing which signified a material update to the injector which is as follows which included an internal filter and optimized thermal compensating oil"

[bmwlover]

As I checked, pices are same. $200-250. Where can I buy 937 for a half price?

[RocketSurgeon]

From FCP:
"As of 3/26/2018 BMW has made it impossible to order #937 injectors unless the order was part of a warranty claim under a recall. FCP Euro can no longer source or sell #937 injectors and will now be selling #079 injectors moving forward until further notice. However, the information listed below in regards to the #079 and #937 injectors is still relevant while both numbers are still listed in BMW's parts system. At the present moment, the #79 injector now has the material update that was once exclusive to the #937 injector."

[bmwlover]

I have read this info on fcp before I opened this threat but cannot find 937 for half price. Bmw russia sell 937 and 079s too but for the same peice.