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OEM (Genuine) GMC Spark Plug
PartNumber: 12622441
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
$8.74 MSRP:$15.80You Save: $7.06 (45%)
Denso® Iridium TT™ Spark Plug for GMC
PartNumber: 4718Product 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
$7.36
OEM (Genuine) GMC Spark Plug
PartNumber: 19417055
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
$9.04 MSRP:$16.34You Save: $7.30 (45%)
Denso® Iridium TT™ Spark Plug for GMC
PartNumber: 4719Product 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
$7.50
OEM (Genuine) GMC Spark Plug
PartNumber: 12681660
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
$8.74 MSRP:$15.80You Save: $7.06 (45%)
Denso® Iridium Power™ Spark Plug for GMC
PartNumber: 5338Product 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
$6.48OEM (Genuine) GMC Spark Plug
PartNumber: 19299585
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
$7.30 MSRP:$13.20You Save: $5.90 (45%)
Denso® Iridium Power™ Spark Plug for GMC
PartNumber: 5339Product 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
$6.61
OEM (Genuine) GMC Spark Plug
PartNumber: 12646780
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
$8.92 MSRP:$16.12You Save: $7.20 (45%)
Denso® Iridium TT™ Spark Plug for GMC
PartNumber: 4708Product 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
$6.48OEM (Genuine) GMC Glow Plug
PartNumber: 12639701
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
$24.43 MSRP:$41.63You Save: $17.20 (42%)
Denso® Iridium TT™ Spark Plug for GMC
PartNumber: 4709Product 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
$6.48
OEM (Genuine) GMC Spark Plug
PartNumber: 19300872
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
$7.18 MSRP:$12.98You Save: $5.80 (45%)
Denso® Iridium TT™ Spark Plug for GMC
PartNumber: 4713Product 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
$6.61
OEM (Genuine) GMC Spark Plug
PartNumber: 12681664
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
$8.74 MSRP:$15.80You Save: $7.06 (45%)
Denso® Iridium TT™ Spark Plug for GMC
PartNumber: 4715Product 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
$6.48
OEM (Genuine) GMC Glow Plug
PartNumber: 55589332
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
$52.70 MSRP:$95.40You Save: $42.70 (45%)
Denso® Iridium TT™ Spark Plug for GMC
PartNumber: 4716Product 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
$6.48OEM (Genuine) GMC Glow Plug
PartNumber: 97226202
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
$19.38 MSRP:$35.06You Save: $15.68 (45%)
Denso® Double Platinum Spark Plug for GMC
PartNumber: 3004Product 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
$5.64
OEM (Genuine) GMC Glow Plug
PartNumber: 55496294
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
$35.39 MSRP:$56.21You Save: $20.82 (38%)
Denso® Double Platinum Spark Plug for GMC
PartNumber: 5068Product 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
$5.64
OEM (Genuine) GMC Glow Plug
PartNumber: 55596430
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
$27.34 MSRP:$49.50You Save: $22.16 (45%)
Denso® Double Platinum Spark Plug for GMC
PartNumber: 5070Product 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
$5.64
OEM (Genuine) GMC Spark Plug
PartNumber: 19302741
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
$2.32 MSRP:$4.18You Save: $1.86 (45%)
Denso® Double Platinum Spark Plug for GMC
PartNumber: 5071Product 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
$5.64
OEM (Genuine) GMC Spark Plug
PartNumber: 12680074
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
$8.74 MSRP:$15.80You Save: $7.06 (45%)
Denso® Double Platinum Spark Plug for GMC
PartNumber: 5077Product 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
$5.64OEM (Genuine) GMC Glow Plug
PartNumber: 97326305
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
$24.22 MSRP:$43.86You Save: $19.64 (45%)
Denso® Iridium Long-Life Spark Plug for GMC
PartNumber: 5090Product 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
$5.79
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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.