That plug (NGK Laser Platinum BKR6EQUP Stk #3199) is the actual OE plug on the X5 for 3.0, 4.4, and 4.6is
On the 4.8is
Iridium IX Part No. IZFR6H11, Stock No 4294, Plug gap .044
(OE PLUG)
I updated the spreadsheet based on your conversations with NGK which I found interesting as their comments matched Champion's efforts to push for a
"TRUCK" SPECIFIC" plug that had a larger center electrode to reduce erosion under continuous hard acceleration pulls such as found in heavy vehicles with little 3.0 engines
and towing.
***********************************
NGK Plugs and gap settings for X5's (Updated 4/28/2020)
3.0
Laser Platinum Part No. BKR6EQUP Stock Number 3199 Plug Gap .032"
*
Iridium IX Part No. BKR6EIX, Stock No 6418, Plug gap .032
Ruthenium HX Part No. FR6AHX-S, Stock 94279, Plug Gap .032
4.4
Laser Platinum Part No. BKR6EQUP Stock Number 3199 Plug Gap .032"
*
Iridium IX Part No. BKR6EIX, Stock No 6418, Plug gap .032
Ruthenium HX Part No. FR6AHX-S, Stock 94279, Plug Gap .032
4.6is
Laser Platinum Part No. BKR6EQUP Stock Number 3199 Plug Gap .032"
*
Iridium IX Part No. BKR6EIX, Stock No 6418, Plug gap .032
Ruthenium HX Part No. FR6AHX-S, Stock 94279 , Plug Gap .032
4.8is
Iridium IX Part No. ZFR6H11, Stock No 6441 Plug gap .044
Lazer Iridum part No. IZFR6HFIX-11 stock No. 4294 Plug gap .044 (OE plug)
*
Ruthenium HX Part No. FR6AHX-S, Stock 94279, Plug Gap .044
I added the newest plug the "Ruthenium" that has some added burn enhancements and longevity properties. In the engine world nothing stands still. Technology is always moving forward.
* Actual OE plug
Note corrected info
4/28/20
__________________
2005 X5 4.8IS
The
Blue ones are always FASTER....
Current Garage:
2005 X5 4.8is
2002 M5 TiSilver
2003 525iT
1998 528i
Former Garage Stable Highlights
2004 325XiT Sport
1973 De Tomaso Pantera, L Model
1970 Dodge Challenger T/A 4 sp Alpine White
1970 Dodge Challenger T/A 4 sp GoManGo Green
1971 Dart Sport, Dart Light package
1969 Road Runner 383
1968 Ply Barracuda 340S FB Sea-foam Green