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GMC Spark Plug
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OEM (Genuine) GMC Spark Plug
PartNumber: 12622441$9.10 MSRP:$16.46You Save: $7.36 (45%)Product Specifications- Other Names: Spark Plug
- Item Dimensions: 4.0 x 3.8 x 1.5 inches
- Item Weight: 0.60 Pounds
- Fitment Type: Direct Replacement
- Part Description: GMC Spark Plug
Denso® Iridium TT™ Spark Plug for GMC
PartNumber: 4718$7.70Product Specifications- Electrode Material: Iridium
- Gap: .039" (1.0 mm)
- Heat Range: 16
- Hex Size: 5/8" (16 mm)
- Nominal Gap: 1 mm
- Overall Height: ISO
- Reach: 25 mm (1")
- Seat Type: Tapered
- Terminal Type: Solid
- Thread Diameter: 14 mm
- Thread Pitch: 1.25 mm
- UPC: 042511047181
- Part Description: GMC Iridium TT™ Spark Plug
OEM (Genuine) GMC Spark Plug
PartNumber: 19417055$9.41 MSRP:$17.02You Save: $7.61 (45%)Product Specifications- Other Names: Spark Plug
- Item Dimensions: 4.4 x 3.7 x 1.1 inches
- Fitment Type: Direct Replacement
- Part Description: GMC Spark Plug
Denso® Iridium TT™ Spark Plug for GMC
PartNumber: 4719$7.84Product Specifications- Electrode Material: Iridium
- Gap: 1.0 mm
- Heat Range: 20
- Hex Size: 5/8" (16 mm)
- Overall Height: ISO
- Reach: 25 mm (1")
- Seat Type: Tapered
- Terminal Type: Solid
- Thread Diameter: 14 mm
- Thread Pitch: 1.25 mm
- UPC: 042511047198
- Part Description: GMC Iridium TT™ Spark Plug
OEM (Genuine) GMC Spark Plug
PartNumber: 12681660$9.10 MSRP:$16.46You Save: $7.36 (45%)Product Specifications- Other Names: Spark Plug
- Item Dimensions: 3.9 x 3.3 x 0.9 inches
- Item Weight: 0.60 Pounds
- Fitment Type: Direct Replacement
- Replaces: 12622561
- Part Description: GMC Spark Plug
Denso® Iridium Power™ Spark Plug for GMC
PartNumber: 5338$6.79Product Specifications- Electrode Material: Iridium
- Gap: .043" (1.1 mm)
- Heat Range: 16
- Hex Size: 5/8" (16 mm)
- Nominal Gap: 1.1 mm
- OE Part Number: ITV16
- Overall Height: ISO
- Reach: 25 mm (1")
- Seat Type: Tapered
- Terminal Type: Solid
- Thread Diameter: 14 mm
- Thread Pitch: 1.25 mm
- UPC: 042511053380
- Part Description: GMC Iridium Power™ Spark Plug
OEM (Genuine) GMC Spark Plug
PartNumber: 19299585$7.61 MSRP:$13.76You Save: $6.15 (45%)Product Specifications- Other Names: Spark Plug
- Item Dimensions: 4.4 x 3.6 x 1.2 inches
- Item Weight: 0.60 Pounds
- Fitment Type: Direct Replacement
- Part Description: GMC Spark Plug
Denso® Iridium Power™ Spark Plug for GMC
PartNumber: 5339$6.92Product Specifications- Center Electrode Core Material: Copper
- Electrode Material: Iridium
- Gap: 1.1 mm
- Ground Configuration: Standard
- Ground Electrode Core Material: Nickel
- Ground Electrode Tip Design: Tapercut, U-Groove
- Heat Range: 20
- Hex Size: 5/8" (16 mm)
- OE Part Number: ITV20
- Overall Height: ISO
- Reach: 25 mm (1")
- Resistance: 5000 Ohms
- Seat Type: Tapered
- Spark Plug Reach: 25 mm
- Terminal Type: Solid
- Thread Diameter: 14 mm
- Thread Pitch: 1.25 mm
- UPC: 042511053397
- Wrench Diameter: 16 mm
- Part Description: GMC Iridium Power™ Spark Plug
OEM (Genuine) GMC Spark Plug
PartNumber: 12646780$10.22 MSRP:$18.48You Save: $8.26 (45%)Product Specifications- Other Names: Spark Plug
- Item Dimensions: 4.2 x 3.2 x 1.1 inches
- Item Weight: 0.50 Pounds
- Fitment Type: Direct Replacement
- Part Description: GMC Spark Plug
Denso® Iridium TT™ Spark Plug for GMC
PartNumber: 4708$6.63Product Specifications- Electrode Material: Iridium
- Gap: .039" (1.0 mm)
- Heat Range: 16
- Hex Size: 13/16" (21 mm)
- Nominal Gap: 1 mm
- Overall Height: JIS
- Reach: 19 mm (3/4")
- Seat Type: Gasket
- Terminal Type: Solid
- Thread Diameter: 14 mm
- Thread Pitch: 1.25 mm
- UPC: 042511047082
- Part Description: GMC Iridium TT™ Spark Plug
OEM (Genuine) GMC Glow Plug
PartNumber: 12639701$24.85 MSRP:$45.00You Save: $20.15 (45%)Product Specifications- Other Names: Glow Plug
- Item Dimensions: 6.4 x 1.1 x 1.0 inches
- Item Weight: 0.40 Pounds
- Fitment Type: Direct Replacement
- Replaces: 97364968
- Part Description: GMC Glow Plug
Denso® Iridium TT™ Spark Plug for GMC
PartNumber: 4709$6.63Product Specifications- Electrode Material: Iridium
- Gap: .039" (1.0 mm)
- Heat Range: 20
- Hex Size: 13/16" (21 mm)
- Nominal Gap: 1 mm
- Overall Height: JIS
- Reach: 19 mm (3/4")
- Seat Type: Gasket
- Terminal Type: Solid
- Thread Diameter: 14 mm
- Thread Pitch: 1.25 mm
- UPC: 042511047099
- Part Description: GMC Iridium TT™ Spark Plug
OEM (Genuine) GMC Spark Plug
PartNumber: 19300872$7.48 MSRP:$13.52You Save: $6.04 (45%)Product Specifications- Other Names: Spark Plug
- Item Dimensions: 4.6 x 3.8 x 1.2 inches
- Item Weight: 0.60 Pounds
- Fitment Type: Direct Replacement
- Replaces: 12597464, 92220447
- Part Description: GMC Spark Plug
Denso® Iridium TT™ Spark Plug for GMC
PartNumber: 4713$6.99Product Specifications- Electrode Material: Iridium
- Gap: .039" (1.0 mm)
- Heat Range: 16
- Hex Size: 5/8" (16 mm)
- Nominal Gap: 1 mm
- Overall Height: JIS
- Reach: 18.00 mm
- Seat Type: Tapered
- Terminal Type: Solid
- Thread Diameter: 14.00 mm
- Thread Pitch: 1.25 mm
- UPC: 042511047136
- Part Description: GMC Iridium TT™ Spark Plug
OEM (Genuine) GMC Spark Plug
PartNumber: 12681664$9.10 MSRP:$16.46You Save: $7.36 (45%)Product Specifications- Other Names: Spark Plug
- Item Dimensions: 6.8 x 3.4 x 0.9 inches
- Item Weight: 0.90 Pounds
- Fitment Type: Direct Replacement
- Replaces: 25330840, 12565030, 25161444, 12568387
- Part Description: GMC Spark Plug
Denso® Iridium TT™ Spark Plug for GMC
PartNumber: 4715$6.85Product Specifications- Electrode Material: Iridium
- Gap: .039" (1.0 mm)
- Heat Range: 16
- Hex Size: 5/8" (16 mm)
- Nominal Gap: 1 mm
- Overall Height: JIS
- Reach: 11.6 mm (.460")
- Seat Type: Tapered
- Terminal Type: Solid
- Thread Diameter: 14 mm
- Thread Pitch: 1.25 mm
- UPC: 042511047150
- Part Description: GMC Iridium TT™ Spark Plug
OEM (Genuine) GMC Glow Plug
PartNumber: 55589332$54.12 MSRP:$97.98You Save: $43.86 (45%)Product Specifications- Other Names: Glow Plug
- Item Dimensions: 6.1 x 3.1 x 1.0 inches
- Item Weight: 0.60 Pounds
- Fitment Type: Direct Replacement
- Part Description: GMC Glow Plug
Denso® Iridium TT™ Spark Plug for GMC
PartNumber: 4716$6.85Product Specifications- Electrode Material: Iridium
- Gap: .039" (1.0 mm)
- Heat Range: 20
- Hex Size: 5/8" (16 mm)
- Nominal Gap: 1 mm
- Overall Height: JIS
- Reach: 11.6 mm (.460")
- Seat Type: Tapered
- Terminal Type: Solid
- Thread Diameter: 14 mm
- Thread Pitch: 1.25 mm
- UPC: 042511047167
- Part Description: GMC Iridium TT™ Spark Plug
OEM (Genuine) GMC Glow Plug
PartNumber: 97226202$19.38 MSRP:$35.06You Save: $15.68 (45%)Product Specifications- Item Dimensions: 7.4 x 5.1 x 0.9 inches
- Item Weight: 0.50 Pounds
- Fitment Type: Direct Replacement
- Part Description: GMC Glow Plug
Denso® Double Platinum Spark Plug for GMC
PartNumber: 3004$5.79Product Specifications- Electrode Material: Platinum
- Gap: .043" (1.1 mm)
- Heat Range: 16
- Hex Size: 13/16" (21 mm)
- Nominal Gap: 1.1 mm
- Overall Height: ISO
- Reach: 19 mm (3/4")
- Seat Type: Gasket
- Spark Plug Reach: 0.748"
- Terminal Type: Solid
- Thread Diameter: 14 mm
- Thread Pitch: 1.25 mm
- UPC: 042511030046
- Part Description: GMC Double Platinum Spark Plug
OEM (Genuine) GMC Glow Plug
PartNumber: 55496294$38.16 MSRP:$60.60You Save: $22.44 (38%)Product Specifications- Other Names: Glow Plug, Harness
- Item Dimensions: 23.8 x 1.2 x 1.0 inches
- Fitment Type: Direct Replacement
- Part Description: GMC Glow Plug
Denso® Double Platinum Spark Plug for GMC
PartNumber: 5068$5.79Product Specifications- Electrode Material: Platinum
- Gap: .050" (1.3 mm)
- Heat Range: 16
- Hex Size: 5/8" (16 mm)
- Nominal Gap: 1.3 mm
- Overall Height: JIS
- Reach: 25 mm (1")
- Seat Type: Tapered
- Spark Plug Reach: 0.984"
- Terminal Type: Solid
- Thread Diameter: 14 mm
- Thread Pitch: 1.25 mm
- UPC: 042511050686
- Part Description: GMC Double Platinum Spark Plug
OEM (Genuine) GMC Glow Plug
PartNumber: 55596430$28.08 MSRP:$50.84You Save: $22.76 (45%)Product Specifications- Other Names: Glow Plug
- Item Dimensions: 7.1 x 2.1 x 2.1 inches
- Item Weight: 0.50 Pounds
- Fitment Type: Direct Replacement
- Part Description: GMC Glow Plug
Denso® Double Platinum Spark Plug for GMC
PartNumber: 5070$5.79Product Specifications- Electrode Material: Platinum
- Gap: .050" (1.3 mm)
- Heat Range: 16
- Hex Size: 5/8" (16 mm)
- Nominal Gap: 1.3 mm
- Overall Height: JIS
- Reach: 18 mm (.709")
- Seat Type: Tapered
- Spark Plug Reach: 0.709"
- Terminal Type: Solid
- Thread Diameter: 14 mm
- Thread Pitch: 1.25 mm
- UPC: 042511050709
- Part Description: GMC Double Platinum Spark Plug
OEM (Genuine) GMC Spark Plug
PartNumber: 19302741$2.32 MSRP:$4.18You Save: $1.86 (45%)Product Specifications- Other Names: Spark Plug
- Item Dimensions: 4.3 x 3.6 x 1.2 inches
- Item Weight: 0.60 Pounds
- Fitment Type: Direct Replacement
- Replaced by: 19354425
- Part Description: GMC Spark Plug
Denso® Double Platinum Spark Plug for GMC
PartNumber: 5071$5.79Product Specifications- Electrode Material: Platinum
- Gap: .059" (1.5 mm)
- Heat Range: 14
- Hex Size: 5/8" (16 mm)
- Insulator Type: Long Projection
- Nominal Gap: 1.5 mm
- Overall Height: ISO
- Reach: 18 mm (.709")
- Seat Type: Tapered
- Spark Plug Reach: 0.709"
- Terminal Type: Solid
- Thread Diameter: 14 mm
- Thread Pitch: 1.25 mm
- UPC: 042511050716
- Part Description: GMC Double Platinum Spark Plug
OEM (Genuine) GMC Spark Plug
PartNumber: 12680074$9.44 MSRP:$17.06You Save: $7.62 (45%)Product Specifications- Other Names: Spark Plug
- Item Dimensions: 6.7 x 3.7 x 1.1 inches
- Item Weight: 1.00 Pounds
- Fitment Type: Direct Replacement
- Replaces: 12627160
- Part Description: GMC Spark Plug
Denso® Double Platinum Spark Plug for GMC
PartNumber: 5077$5.79Product Specifications- Electrode Material: Platinum
- Gap: .059" (1.5 mm)
- Heat Range: 16
- Hex Size: 5/8" (16 mm)
- Nominal Gap: 1.5 mm
- Overall Height: JIS
- Reach: 18 mm (.709")
- Seat Type: Tapered
- Spark Plug Reach: 0.709"
- Terminal Type: Solid
- Thread Diameter: 14 mm
- Thread Pitch: 1.25 mm
- UPC: 042511050778
- Part Description: GMC Double Platinum Spark Plug
OEM (Genuine) GMC Glow Plug
PartNumber: 97326305$24.22 MSRP:$43.86You Save: $19.64 (45%)Product Specifications- Item Dimensions: 7.6 x 5.2 x 0.5 inches
- Item Weight: 0.40 Pounds
- Fitment Type: Direct Replacement
- Part Description: GMC Glow Plug
Denso® Iridium Long-Life Spark Plug for GMC
PartNumber: 5090$6.25Product Specifications- Electrode Material: Iridium
- Gap: .039" (1.0 mm)
- Heat Range: 16
- Hex Size: 5/8" (16 mm)
- Nominal Gap: 1 mm
- Overall Height: JIS
- Reach: 18 mm (.709")
- Seat Type: Tapered
- Terminal Type: Solid
- Thread Diameter: 14 mm
- Thread Pitch: 1.25 mm
- UPC: 042511050907
- Part Description: GMC Iridium Long-Life Spark Plug
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Next >About GMC Spark Plug
GMC produces trucks, vans, sedans, SUVs, and military vehicles. It is well-known for its light-duty trucks as well as cars. During the development of GMC, many popular parts have been built, such as the spark plug. It is used for ionization of cylinders when they are not firing. The regular spark plug comes with a copper core and metal terminal for the steel shell.
GMC is famous for lots of high-quality parts. However, the old spark plug might lead to poor functions and an unpleasant driving experience after years of usage. To change it, you will need the proper size socket, a gapping gauge, a ratchet, a torque wrench, and a new set of spark plugs. They have different heat ranges: the longer the spark plug insulator, the hotter the spark plug will operate and the shorter the insulator, the cooler the spark plug will operate. From the body parts to the performance GMC parts, a long catalog of advanced products is given here. There are lots of top-quality and durable GMC parts available on our website.