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2004 Cadillac CTS
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OEM (Genuine) 2004 Cadillac CTS Spark Plug
PartNumber: 19301814
Product Specifications- Notes: 2.8 & 3.6 Liter
- Location: Driver Side; Passenger Side
- Item Dimensions: 4.5 x 4.0 x 1.3 inches
- Item Weight: 0.60 Pounds
- Fitment Type: Direct Replacement
- Replaces: 19256624, 12565996
- Part Description: 2004 Cadillac CTS Spark Plug
Vehicle Fitment- 2004 Cadillac CTS | Base | 6 Cyl 2.8 L GAS, 6 Cyl 3.6 L GAS
$9.04 MSRP:$16.34You Save: $7.30 (45%)
Denso® Iridium TT™ Spark Plug for 2004 Cadillac CTS
PartNumber: 4719Product Specifications- Notes: Gap 0.040; Iridium TT - Ultimate Endurance & Pwr, 0.4mm Iridium & 0.7mm Platinum Twin-Tip Technology
- 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: 2004 Cadillac CTS Iridium TT™ Spark Plug
Vehicle Fitment- 2004 Cadillac CTS | All Trims | 6 Cyl 3.6L
$7.50
OEM (Genuine) 2004 Cadillac CTS Spark Plug
PartNumber: 12681665
Product Specifications- Notes: 5.7 Liter
- Location: Driver Side; Passenger Side
- Other Names: Spark Plug
- Item Dimensions: 3.7 x 1.1 x 6.9 inches
- Item Weight: 1.00 Pounds
- Fitment Type: Direct Replacement
- Replaces: 25162555, 12607234, 19256067, 25315018, 89017883, 25162556
- Part Description: 2004 Cadillac CTS Spark Plug
Vehicle Fitment- 2004 Cadillac CTS | V | 8 Cyl 5.7 L GAS, 8 Cyl 6.0 L GAS
$8.74 MSRP:$15.80You Save: $7.06 (45%)
Denso® Iridium Power™ Spark Plug for 2004 Cadillac CTS
PartNumber: 5339Product Specifications- Notes: Gap 0.044; Iridium Pwr - Perf Upgrade w/World's Smallest Center Electrode (0.4 mm Dia) & Tapered Tip Patented U-Groove Design & Patented Ir Alloy (90% Ir)
- 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: 2004 Cadillac CTS Iridium Power™ Spark Plug
Vehicle Fitment- 2004 Cadillac CTS | All Trims | 6 Cyl 3.6L
$6.61
Denso® Iridium TT™ Cold Type Spark Plug for 2004 Cadillac CTS
PartNumber: 4702Product Specifications- Notes: Gap 0.040; Iridium TT - Ultimate Endurance & Pwr, 0.4mm Iridium & 0.7mm Platinum Twin-Tip Technology
- Electrode Material: Iridium
- Gap: .039" (1.0 mm)
- Ground Electrode Quantity: 1
- Ground Electrode Tip Design: Platinum Twin -Tip
- Heat Range: 20
- Hex Size: 5/8" (16 mm)
- Material: Nickel
- Nominal Gap: 1 mm
- Overall Height: ISO
- Reach: 19 mm (3/4")
- Resistance: 5000 Ohms
- Seat Type: Gasket
- Spark Plug Reach: 19 mm
- Terminal Type: Solid
- Thread Diameter: 14 mm
- Thread Pitch: 1.25 mm
- UPC: 042511047020
- Wrench Diameter: 16 mm
- Part Description: 2004 Cadillac CTS Iridium TT™ Cold Type Spark Plug
Vehicle Fitment- 2004 Cadillac CTS | All Trims | 6 Cyl 3.2L
$6.61
Denso® Iridium TT™ Spark Plug for 2004 Cadillac CTS
PartNumber: 4713Product Specifications- Notes: Gap 0.040; Iridium TT - Ultimate Endurance & Pwr, 0.4mm Iridium & 0.7mm Platinum Twin-Tip Technology
- 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: 2004 Cadillac CTS Iridium TT™ Spark Plug
Vehicle Fitment- 2004 Cadillac CTS | All Trims | 8 Cyl 5.7L
$6.61
Denso® Iridium Long-Life Spark Plug for 2004 Cadillac CTS
PartNumber: 5090Product Specifications- Notes: Gap 0.040; DENSO is OE Manufacturer / Iridium Long Life Plug - Patented Iridium Alloy Plug (90% Ir) w/Platinum Ground Strap
- 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: 2004 Cadillac CTS Iridium Long-Life Spark Plug
Vehicle Fitment- 2004 Cadillac CTS | All Trims | 8 Cyl 5.7L
$5.79
Denso® Iridium Power™ Cold Type Spark Plug for 2004 Cadillac CTS
PartNumber: 5304Product Specifications- Notes: Gap 0.044; Iridium Pwr - Perf Upgrade w/World's Smallest Center Electrode (0.4 mm Dia) & Tapered Tip Patented U-Groove Design & Patented Ir Alloy (90% Ir)
- Electrode Material: Iridium
- Gap: .043" (1.1 mm)
- Heat Range: 20
- Hex Size: 5/8" (16 mm)
- Nominal Gap: 1.1 mm
- Overall Height: ISO
- Reach: 19 mm (3/4")
- Seat Type: Gasket
- Terminal Type: Solid
- Thread Diameter: 14 mm
- Thread Pitch: 1.25 mm
- UPC: 042511053045
- Part Description: 2004 Cadillac CTS Iridium Power™ Cold Type Spark Plug
Vehicle Fitment- 2004 Cadillac CTS | All Trims | 6 Cyl 3.2L
$5.96
Denso® Iridium Power™ Spark Plug for 2004 Cadillac CTS
PartNumber: 5325Product Specifications- Notes: Gap 0.044; Iridium Pwr - Perf Upgrade w/World's Smallest Center Electrode (0.4 mm Dia) & Tapered Tip Patented U-Groove Design & Patented Ir Alloy (90% Ir)
- 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: IT16
- Overall Height: JIS
- Reach: 18.00 mm
- Seat Type: Tapered
- Terminal Type: Solid
- Thread Diameter: 14.00 mm
- Thread Pitch: 1.25 mm
- UPC: 042511053250
- Part Description: 2004 Cadillac CTS Iridium Power™ Spark Plug
Vehicle Fitment- 2004 Cadillac CTS | All Trims | 8 Cyl 5.7L
$5.96
Denso® Platinum TT™ Spark Plug for 2004 Cadillac CTS
PartNumber: 4504Product Specifications- Notes: Gap 0.040; Platinum TT - Twin-Tip Technology Design w/Platinum Center Electrode & Titanium Enhanced Ground Strap
- Electrode Material: Platinum
- Gap: .039" (1.0 mm)
- Ground Electrode Quantity: 1
- Ground Electrode Tip Design: Titanium Enhanced Twin-Tip
- Heat Range: 20
- Hex Size: 5/8" (16 mm)
- Material: Nickel
- Nominal Gap: 1 mm
- Overall Height: ISO
- Quantity: 1 Piece
- Seat Type: Gasket
- Spark Plug Reach: 19 mm
- Terminal Type: Solid
- Thread Diameter: 14 mm
- Thread Pitch: 1.25 mm
- UPC: 042511045040
- Wrench Diameter: 16 mm
- Part Description: 2004 Cadillac CTS Platinum TT™ Spark Plug
Vehicle Fitment- 2004 Cadillac CTS | All Trims | 6 Cyl 3.2L
$3.32
Denso® Platinum TT™ Spark Plug for 2004 Cadillac CTS
PartNumber: 4511Product Specifications- Notes: Gap 0.040; Platinum TT - Twin-Tip Technology Design w/Platinum Center Electrode & Titanium Enhanced Ground Strap
- Electrode Material: Platinum
- Gap: .039" (1.0 mm)
- Ground Electrode Quantity: 1
- Ground Electrode Tip Design: Titanium Enhanced Twin-Tip
- Heat Range: 16
- Hex Size: 5/8" (16 mm)
- Material: Nickel
- Nominal Gap: 1 mm
- Overall Height: JIS
- Reach: 17.5 mm (.689")
- Seat Type: Tapered
- Spark Plug Reach: 18 mm
- Terminal Type: Solid
- Thread Diameter: 14 mm
- Thread Pitch: 1.25 mm
- UPC: 042511045118
- Wrench Diameter: 16 mm
- Part Description: 2004 Cadillac CTS Platinum TT™ Spark Plug
Vehicle Fitment- 2004 Cadillac CTS | All Trims | 8 Cyl 5.7L
$3.32
OEM (Genuine) 2004 Cadillac CTS Ignition Coil
PartNumber: 19418102
Product Specifications- Notes: Cts; 3.6l; 2.8 & 3.6 Liter
- Location: Driver Side; Passenger Side
- Other Names: Ignition Coil, Spark Plug
- Item Dimensions: 8.9 x 3.9 x 3.3 inches
- Item Weight: 0.80 Pounds
- Fitment Type: Direct Replacement
- Replaces: 12613057, 12629037, 12583514
- Part Description: 2004 Cadillac CTS Ignition Coil
Vehicle Fitment- 2004 Cadillac CTS | Base, V | 6 Cyl 2.8 L GAS, 6 Cyl 3.6 L GAS, 8 Cyl 6.2 L GAS
$99.61 MSRP:$187.96You Save: $88.35 (48%)
Denso® Original U-Groove Nickel Spark Plug for 2004 Cadillac CTS
PartNumber: 5063Product Specifications- Notes: Gap 0.040; OE Recommended Resistor Plug
- Center Electrode Core Material: Copper
- Center Electrode Material: Nickel
- Gap: 0.040"
- Ground Configuration: Multi-Electrode
- Ground Electrode Core Material: Nickel
- Ground Electrode Quantity: 2
- Ground Electrode Tip Design: Multi-Electrode
- Heat Range: 20
- Hex Size: 0.625"
- Resistance: 5 kOhm
- Spark Plug Seat Style: Gasket
- Thread Diameter: 0.551"
- Thread Reach: 0.748"
- UPC: 042511050631
- Part Description: 2004 Cadillac CTS Original U-Groove Nickel Spark Plug
Vehicle Fitment- 2004 Cadillac CTS | All Trims | 6 Cyl 3.2L
Denso® Iridium Tt™ Spark Plug for 2004 Cadillac CTS
PartNumber: IK20Product Specifications- Notes: Gap 0.044; Iridium Pwr - Perf Upgrade w/World's Smallest Center Electrode (0.4 mm Dia) & Tapered Tip Patented U-Groove Design & Patented Ir Alloy (90% Ir)
- Center Electrode Core Material: Copper
- Center Electrode Tip Material: Iridium Rhodium Alloy
- Ground Configuration: Standard
- Ground Electrode Core Material: Nickel
- Ground Electrode Quantity: 1
- Ground Electrode Tip Design: Tapercut, U-Groove
- Hex Size: 16.0
- Manufacturer Heat Range: 20
- Pre-Gap Size: 0.044
- Reach: 19.00
- Resistance: 5000
- Seat Type: Gasket
- UPC: 042511053045
- Part Description: 2004 Cadillac CTS Iridium Tt™ Spark Plug
Vehicle Fitment- 2004 Cadillac CTS | All Trims | 6 Cyl 3.2L
Denso® Iridium Tt™ Spark Plug for 2004 Cadillac CTS
PartNumber: IK20TTProduct Specifications- Notes: Gap 0.040; Iridium TT - Ultimate Endurance & Pwr, 0.4mm Iridium & 0.7mm Platinum Twin-Tip Technology
- Center Electrode Core Material: Copper
- Center Electrode Tip Material: Iridium Rhodium Alloy
- Ground Configuration: Twin-Tip
- Ground Electrode Core Material: Nickel
- Ground Electrode Quantity: 1
- Ground Electrode Tip Design: Platinum Twin-Tip
- Hex Size: 16.0
- Manufacturer Heat Range: 20
- Pre-Gap Size: 0.040
- Reach: 19.00
- Resistance: 5000
- Seat Type: Gasket
- UPC: 042511047020
- Part Description: 2004 Cadillac CTS Iridium Tt™ Spark Plug
Vehicle Fitment- 2004 Cadillac CTS | All Trims | 6 Cyl 3.2L
Denso® Iridium Tt™ Spark Plug for 2004 Cadillac CTS
PartNumber: IT16Product Specifications- Notes: Gap 0.044; Iridium Pwr - Perf Upgrade w/World's Smallest Center Electrode (0.4 mm Dia) & Tapered Tip Patented U-Groove Design & Patented Ir Alloy (90% Ir)
- Center Electrode Core Material: Copper
- Center Electrode Tip Material: Iridium Rhodium Alloy
- Ground Configuration: Standard
- Ground Electrode Core Material: Nickel
- Ground Electrode Quantity: 1
- Ground Electrode Tip Design: Tapercut, U-Groove
- Hex Size: 16.0
- Manufacturer Heat Range: 16
- Pre-Gap Size: 0.044
- Reach: 18.00
- Resistance: 5000
- Seat Type: Tapered
- UPC: 042511053250
- Part Description: 2004 Cadillac CTS Iridium Tt™ Spark Plug
Vehicle Fitment- 2004 Cadillac CTS | All Trims | 8 Cyl 5.7L
Denso® Iridium Tt™ Spark Plug for 2004 Cadillac CTS
PartNumber: IT16TTProduct Specifications- Notes: Gap 0.040; Iridium TT - Ultimate Endurance & Pwr, 0.4mm Iridium & 0.7mm Platinum Twin-Tip Technology
- Center Electrode Core Material: Copper
- Center Electrode Tip Material: Iridium Rhodium Alloy
- Ground Configuration: Twin-Tip
- Ground Electrode Core Material: Nickel
- Ground Electrode Quantity: 1
- Ground Electrode Tip Design: Platinum Twin-Tip
- Hex Size: 16.0
- Manufacturer Heat Range: 16
- Pre-Gap Size: 0.040
- Reach: 18.00
- Resistance: 5000
- Seat Type: Tapered
- UPC: 042511047136
- Part Description: 2004 Cadillac CTS Iridium Tt™ Spark Plug
Vehicle Fitment- 2004 Cadillac CTS | All Trims | 8 Cyl 5.7L
Denso® Iridium Tt™ Spark Plug for 2004 Cadillac CTS
PartNumber: ITV20Product Specifications- Notes: Gap 0.044; Iridium Pwr - Perf Upgrade w/World's Smallest Center Electrode (0.4 mm Dia) & Tapered Tip Patented U-Groove Design & Patented Ir Alloy (90% Ir)
- Center Electrode Core Material: Copper
- Center Electrode Tip Material: Iridium Rhodium Alloy
- Ground Configuration: Standard
- Ground Electrode Core Material: Nickel
- Ground Electrode Quantity: 1
- Ground Electrode Tip Design: Tapercut, U-Groove
- Hex Size: 16.0
- Manufacturer Heat Range: 20
- Pre-Gap Size: 0.044
- Reach: 25.00
- Resistance: 5000
- Seat Type: Tapered
- UPC: 042511053397
- Part Description: 2004 Cadillac CTS Iridium Tt™ Spark Plug
Vehicle Fitment- 2004 Cadillac CTS | All Trims | 6 Cyl 3.6L
Denso® Iridium Tt™ Spark Plug for 2004 Cadillac CTS
PartNumber: ITV20TTProduct Specifications- Notes: Gap 0.040; Iridium TT - Ultimate Endurance & Pwr, 0.4mm Iridium & 0.7mm Platinum Twin-Tip Technology
- Center Electrode Core Material: Copper
- Center Electrode Tip Material: Iridium Rhodium Alloy
- Ground Configuration: Twin-Tip
- Ground Electrode Core Material: Nickel
- Ground Electrode Quantity: 1
- Ground Electrode Tip Design: Platinum Twin-Tip
- Hex Size: 16.0
- Manufacturer Heat Range: 20
- Pre-Gap Size: 0.040
- Reach: 25.00
- Resistance: 5000
- Seat Type: Tapered
- UPC: 042511047198
- Part Description: 2004 Cadillac CTS Iridium Tt™ Spark Plug
Vehicle Fitment- 2004 Cadillac CTS | All Trims | 6 Cyl 3.6L
Denso® Original U-Groove™ Spark Plug for 2004 Cadillac CTS
PartNumber: K20TXRProduct Specifications- Notes: Gap 0.040; OE Recommended Resistor Plug
- Center Electrode Core Material: Copper
- Center Electrode Tip Material: Nickel
- Ground Configuration: Multi-Electrode
- Ground Electrode Core Material: Nickel
- Ground Electrode Quantity: 2
- Ground Electrode Tip Design: Multi-Electrode
- Hex Size: 16.0
- Manufacturer Heat Range: 20
- Pre-Gap Size: 0.040
- Reach: 19.00
- Resistance: 5000
- Seat Type: Gasket
- UPC: 042511050631
- Part Description: 2004 Cadillac CTS Original U-Groove™ Spark Plug
Vehicle Fitment- 2004 Cadillac CTS | All Trims | 6 Cyl 3.2L
Denso® Platinum Tt™ Spark Plug for 2004 Cadillac CTS
PartNumber: PK20TTProduct Specifications- Notes: Gap 0.040; Platinum TT - Twin-Tip Technology Design w/Platinum Center Electrode & Titanium Enhanced Ground Strap
- Center Electrode Core Material: Copper
- Center Electrode Tip Material: Platinum
- Ground Configuration: Twin-Tip
- Ground Electrode Core Material: Nickel
- Ground Electrode Quantity: 1
- Ground Electrode Tip Design: Titanium Enhanced Twin-Tip
- Hex Size: 16.0
- Manufacturer Heat Range: 20
- Pre-Gap Size: 0.040
- Reach: 19.00
- Resistance: 5000
- Seat Type: Gasket
- UPC: 042511045040
- Part Description: 2004 Cadillac CTS Platinum Tt™ Spark Plug
Vehicle Fitment- 2004 Cadillac CTS | All Trims | 6 Cyl 3.2L
Denso® Platinum Tt™ Spark Plug for 2004 Cadillac CTS
PartNumber: PT16TTProduct Specifications- Notes: Gap 0.040; Platinum TT - Twin-Tip Technology Design w/Platinum Center Electrode & Titanium Enhanced Ground Strap
- Center Electrode Core Material: Copper
- Center Electrode Tip Material: Platinum
- Ground Configuration: Twin-Tip
- Ground Electrode Core Material: Nickel
- Ground Electrode Quantity: 1
- Ground Electrode Tip Design: Titanium Enhanced Twin-Tip
- Hex Size: 16.0
- Manufacturer Heat Range: 16
- Pre-Gap Size: 0.040
- Reach: 18.00
- Resistance: 5000
- Seat Type: Tapered
- UPC: 042511045118
- Part Description: 2004 Cadillac CTS Platinum Tt™ Spark Plug
Vehicle Fitment- 2004 Cadillac CTS | All Trims | 8 Cyl 5.7L
Denso® Iridium Long-Life™ Spark Plug for 2004 Cadillac CTS
PartNumber: ZTJ16R10Product Specifications- Notes: Gap 0.040; DENSO is OE Manufacturer / Iridium Long Life Plug - Patented Iridium Alloy Plug (90% Ir) w/Platinum Ground Strap
- Center Electrode Core Material: Copper
- Center Electrode Tip Material: Iridium-Rhodium Alloy
- Ground Configuration: Standard
- Ground Electrode Core Material: Nickel
- Ground Electrode Quantity: 1
- Ground Electrode Tip Design: Platinum Chip
- Hex Size: 16.0
- Manufacturer Heat Range: 16
- Pre-Gap Size: 0.040
- Reach: 18.00
- Resistance: 5000
- Seat Type: Tapered
- UPC: 042511050907
- Part Description: 2004 Cadillac CTS Iridium Long-Life™ Spark Plug
Vehicle Fitment- 2004 Cadillac CTS | All Trims | 8 Cyl 5.7L
FAQ for Spark Plug Repair
Q: What is the proper way to install the spark plug?
A:
The proper way is to measure the spark plug gap on the spark plugs to be installed, install the spark plugs to the cylinder heads, and then install the ignition coils.
By Bob
GM Specialist
01/11/2022Q: What is the removal procedure for the spark plug?
A:
The procedure is to remove the ignition coils, clean the spark plug recess area with low-pressure air, remove the spark plugs from the cylinder heads, and then inspect the spark plugs.
By Bob
GM Specialist
01/11/2022