Original Center Electrode Material is Copper/Nickel Gap 0.024 in
Gap 0.028in OE Type ; Plug Type RN14YC
Non-Resistor Type Gap 0.024in OE Type ; Plug Type N12YC
Original Center Electrode Material is Silver
Gap 0.032 O.E. Recommended Resistor Plug with Patented U-Groove Design
Gap 0.028" OE Equivalent Design
Gap 0.028"
Gap 0.024in; Plug Type RN14PMC
Original Center Electrode Material is Copper/Nickel Do Not Gap, Gap is Preset
Bosch WR9LS
Gap 0.028"
Bosch W8DC
Gap 0.040 Platinum TT - Twin-Tip Technology Design with Platinum Center Electrode and Titanium Enhanced Ground Strap
Gap 0.028in; Plug Type RN14PYP
Bosch WR9LS
Bosch WR9LS
Gap 0.044 Double Platinum Plug - Extra Long Life Double Platinum Plug with Platinum Ground Strap
Bosch WR9LS
Gap 0.028"
Gap 0.044 Iridium Power - Performance Upgrade with World's Smallest Center Electrode (0.4 mm Dia.) & Tapered Tip Patented U-Groove Design & Patented Ir Alloy (90% Ir)
Gap 0.040 Iridium TT - Ultimate Endurance and Power, 0.4mm Iridium and 0.7mm Platinum Twin-Tip Technology
Browse our selection of quality spark plug parts designed specifically for your BMW 633CSi. We carry options across multiple trim levels, body styles, and engine configurations to ensure a perfect fit.
Base
Coupe
L6 3.2L
Automatic · Manual
