Gap 0.040in; Plug Type RS12YC
Original Center Electrode Material is Iridium Do Not Gap, Gap is Preset
Gap 0.040in; Plug Type RS14PMC4
Gap: .040/1.0mm Enhanced Tapered Ground Electrode w/ Platinum Chip
Gap 0.040"
Gap 0.060"
Original Center Electrode Material is Iridium Do Not Gap, Gap is Preset
w/ Platinum Design
Gap .040 (in)
Gap 0.060in; Plug Type RS14PMPB5
Gap 0.040in; Plug Type RS14PMP4
Original Center Electrode Material is Platinum Do Not Gap, Gap is Preset
Original Center Electrode Material is Iridium Do Not Gap, Gap is Preset
Original Center Electrode Material is Platinum Do Not Gap, Gap is Preset
Gap 0.040in OE Type ; Plug Type RS12WMPB4
Gap 0.040"
Gap 0.060"
Gap 0.060in; Plug Type RS14WLPB5
OE Style
Rapidfire
Gap 0.040" OE Equivalent Design 100,000 mi OE Mfr Recommended Service Interval
Gap 0.040"
Gap 0.060" OE Equivalent Design 100,000 mi OE Mfr Recommended Service Interval
Gap .040 (in)
Gap 0.040"
w/ Platinum Design
w/ Platinum Design
w/ Platinum Design
Single; Plug Type 1IR5L; 14 mm. Thread; 0.6910 Reach
Browse our selection of quality spark plug parts designed specifically for your GMC Sierra 3500 Classic. We carry options across multiple trim levels, body styles, and engine configurations to ensure a perfect fit.
SL · SLE · SLT · WT
Cab & Chassis · Crew Cab Pickup · Extended Cab Pickup · Standard Cab Pickup
V8 6.0L · V8 6.6L · V8 8.1L
Automatic · Manual
