Gap 0.040in; Plug Type RS9YC
Gap 0.040in; Plug Type RS12YC
Gap 0.032 Resistor Plug with Patented U-Groove Design
Gap 0.060 Resistor Plug with Patented U-Groove Design
Gap 0.050in; Plug Type RS10PYC
Gap 0.040in; Plug Type RS10PYC4
Gap 0.044in; Plug Type RE10PMC5
Gap: .050/1.3mm Enhanced Tapered Ground Electrode w/ Platinum Chip
Original Center Electrode Material is Iridium Do Not Gap, Gap is Preset
Gap 0.052"
Gap 0.040"
Original Center Electrode and Ground Electrode Material is Platinum Do Not Gap, Gap is Preset
Gap: .050/1.3mm Enhanced Tapered Ground Electrode w/ Platinum Chip
Gap: .050/1.3mm Enhanced Tapered Ground Electrode w/ Platinum Chip
Gap .050 (in)
Gap 0.040 Platinum TT - Twin-Tip Technology Design with Platinum Center Electrode and Titanium Enhanced Ground Strap
Original Center Electrode and Ground Electrode Material is Platinum Do Not Gap, Gap is Preset
Original Center Electrode Material is Iridium Do Not Gap, Gap is Preset
Gap 0.040in OE Type ; Plug Type RS9PYP4
Gap 0.044in OE Type ; Plug Type RES9PYP4
Gap 0.050in OE Type ; Plug Type RS12PYPB5
Gap 0.040"
Gap 0.044 Resistor Plug with Patented U-Groove Design
Gap 0.040in; Plug Type RS8WYPB5
Gap 0.050in; Plug Type RS12WYPB4
Original Center Electrode Material is Iridium Do Not Gap, Gap is Preset
Original Center Electrode and Ground Electrode Material is Platinum Do Not Gap, Gap is Preset
Original Center Electrode Material is Platinum Do Not Gap, Gap is Preset
Gap 0.040 Platinum TT - Twin-Tip Technology Design with Platinum Center Electrode and Titanium Enhanced Ground Strap
GM Original Equipment Double Platinum; 2nd Design; USED ON VEHICLE With 41-990 12597464 SPK PLUGS) (FOR 1st DESIGN SEE 19301814; Original Equipment; GAP .043
Gap 0.040 Platinum TT - Twin-Tip Technology Design with Platinum Center Electrode and Titanium Enhanced Ground Strap
GM Original Equipment Double Platinum; Original Equipment; GAP .050; GAP PRE-SET AT FACTORY, DO NOT RE-GAP
Gap 0.040 DENSO is O.E. Manufacturer / O.E. Recommended Double Platinum Plug - Extra Long Life Double Platinum Plug with Platinum Ground Strap
Gap 0.050 O.E. Recommended Double Platinum Plug - Extra Long Life Double Platinum Plug with Platinum Ground Strap
Gap 0.050 DENSO is O.E. Manufacturer / O.E. Recommended Double Platinum Plug - Extra Long Life Double Platinum Plug with Platinum Ground Strap
Gap 0.044in OE Type ; Plug Type RE10WYPB5
Gap 0.052"
Gap 0.040"
Gap 0.040"
Gap 0.040"
OE Style
Gap .050 (in)
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 0.032 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 0.044"
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 0.044 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" OE Equivalent Design 100,000 mi OE Mfr Recommended Service Interval
Gap 0.040" OE Equivalent Design 100,000 mi OE Mfr Recommended Service Interval
Gap 0.052" OE Equivalent Design 100,000 mi OE Mfr Recommended Service Interval
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
Gap 0.040 Iridium TT - Ultimate Endurance and Power, 0.4mm Iridium and 0.7mm Platinum Twin-Tip Technology
Gap 0.044 Iridium Long Life - Patented Iridium Alloy Plug (90% Ir) with Platinum Ground Strap
Gap 0.040 Iridium TT - Ultimate Endurance and Power, 0.4mm Iridium and 0.7mm Platinum Twin-Tip Technology
Gap 0.040 Iridium TT - Ultimate Endurance and Power, 0.4mm Iridium and 0.7mm Platinum Twin-Tip Technology
Gap 0.040"
w/ Platinum Design
w/ Platinum Design
Gap 0.040"
Gap 0.040"
Gap 0.052"
Platinum
w/ Platinum Design
w/ Platinum Design
Iridium
Browse our selection of quality spark plug parts designed specifically for your Cadillac STS. We carry options across multiple trim levels, body styles, and engine configurations to ensure a perfect fit.
Base · Elegance · Platinum · V
Sedan
V6 3.6L · V8 4.4L · V8 4.6L
Automatic
