Bosch Spark Plugs
SET of 4
Super 4
WR78X
Bosch Part No. 0 242 232 505
Made in Russia
Hex Spanner Size: 13/16" (21mm)
Thread Size: 14mm
Thread Length: 19mm
Thread Pitch: 1.25mm
Spark Position: 3mm
Factory Gap: 1.1mm
Gasket Type: Gasket Seat
Tip Configuration: Four (4) Ground Electrodes
Tightening Torque: 28nm
Tightening Angle: 90 degrees
Bosch Model Number Decoding ( WR78X ):
"W" - 14mm x 1.25mm, 21mm (Thread Size x Thread Pitch, Hex Spanner Size)
"R" - With interference suppression resistor
"78" - Bosch Spark Plug Heat Range (replacement for both heat range 7 and 8)
"X" - 1.1mm Factory Gap
Cross Reference:
Bosch W8DC / W7DC (Copper, non-resistor)
Bosch WR8DC / WR7DC (Copper with resistor)
Bosch WR8DP / WR7DP (Platinum with resistor)
Bosch WR8DPP30W (Platinum with resistor, fine wire)
NGK BP5ES / BP6ES (non-resistor)
NGK BPR5ES / BPR6ES (with resistor)
Champion N11Y / N11YC (non-resistor)
Champion RN11Y / RN11YC (with resistor)
Nippondenso (DENSO) W16EX / W16EX-U / W20EX / W20EX-U (non-resistor)
Nippondenso (DENSO) W16EXR-U / W20EXR-U (with resistor)
Common Applications:
Toyota 2E Engine (Corolla 1.3L)
Toyota 5K Engine (Tamaraw FX / Lite Ace)
Toyota 7K-E Engine (Revo)
Mitsubishi 4G13 Engine (Lancer 1.3L)
Mitsubishi 4G15 Engine (Lancer 1.5L)
Mitsubishi 4G16 Engine (Galant 1.6L)
Mitsubishi 4G37 Engine (Galant 1.8L)
Nissan KA24E Engine (Terrano)
Kia B1, B116, B3 Engines (Pride)
***Check your current spark plug model first to cross reference or send us a message with the model number***
***Each item is for a Set of Four (4) Spark Plugs, please see photo.***
Bosch Super 4 Spark Plug
- Equipped with four enhanced ground electrodes with surface air-gap design: Bosch Super 4 spark plugs are engineered for outstanding engine performance, high fuel economy and protection against carbon fouling.