NGK BPR4HS (7823) - Standard Spark Plug / Sparkplug - Extended Projection. Brand: NGK, Quantity: 1 Unit. Spark Plugs Set 4x 7823 NGK. Brand: NGK, Part Number: 7823, Other Part Number: BPR4HS, Thread Size: M14 x 1,25, Spanner Size: 20,8 mm, Thread Length: 12.7 mm, Spark Position: 4.5 mm, Spark Plug: Unscrewable SAE connector, Nickel Middle Electrode, 1 - Earthed Electrode, interference Suppression 5 kOhm, with gasket seat, Type: Spark Plug. Cross references: DENSO 4016, W14FPR-L, W14FPR-UL, W14FPRL, W14FPRUL TORCHE 4 RTC. Compatible with the following OEM references: APRILIA 8176075, HONDA 9807654717, 9807654747, KAWASAKI 920702061, E920702061, KUBOTA 1337467741, PIAGGIO AP8176075, SUZUKI 0948200205, 0948200206, 0948200367, YAMAHA 9470000258, 9470100258, 9470300258, YANMAR 16081078010. Other references: BPR4HS. NGK has become the brand leader in the UK spark plug market and the number one choice of the professional as a result of its quality, technical excellence.