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2008 Chevrolet Impala
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OEM (Genuine) 2008 Chevrolet Impala Spark Plug
PartNumber: 12681662
Product Specifications- Notes: 3.5 & 3.9 Liter
- Item Dimensions: 3.6 x 3.4 x 0.8 inches
- Item Weight: 0.60 Pounds
- Fitment Type: Direct Replacement
- Replaces: 12591131
- Part Description: 2008 Chevrolet Impala Spark Plug
Vehicle Fitment- 2008 Chevrolet Impala | 50th Anniversary Edition, LS, LT, LTZ, Police | 6 Cyl 3.5 L FLEX, 6 Cyl 3.5 L GAS, 6 Cyl 3.9 L FLEX, 6 Cyl 3.9 L GAS
$8.74 MSRP:$15.80You Save: $7.06 (45%)
Denso® Iridium TT™ Spark Plug for 2008 Chevrolet Impala
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: 2008 Chevrolet Impala Iridium TT™ Spark Plug
Vehicle Fitment- 2008 Chevrolet Impala | All Trims | 8 Cyl 5.3L
- 2008 Chevrolet Impala | All Trims | 6 Cyl 3.5L
- 2008 Chevrolet Impala | All Trims | 6 Cyl 3.9L
$7.01
OEM (Genuine) 2008 Chevrolet Impala Spark Plug
PartNumber: 12681665
Product Specifications- Notes: 5.3 Liter
- 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: 2008 Chevrolet Impala Spark Plug
Vehicle Fitment- 2008 Chevrolet Impala | SS | 8 Cyl 5.3 L GAS
$8.74 MSRP:$15.80You Save: $7.06 (45%)
Denso® Iridium Long-Life Spark Plug for 2008 Chevrolet Impala
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: 2008 Chevrolet Impala Iridium Long-Life Spark Plug
Vehicle Fitment- 2008 Chevrolet Impala | All Trims | 8 Cyl 5.3L
- 2008 Chevrolet Impala | All Trims | 6 Cyl 3.5L
- 2008 Chevrolet Impala | All Trims | 6 Cyl 3.9L
$6.14
Denso® Iridium Power™ Spark Plug for 2008 Chevrolet Impala
PartNumber: 5325Product Specifications- Notes: Gap 0.044; Iridium Pwr - Perf Upgrade w/Worlds 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: 2008 Chevrolet Impala Iridium Power™ Spark Plug
Vehicle Fitment- 2008 Chevrolet Impala | All Trims | 8 Cyl 5.3L
- 2008 Chevrolet Impala | All Trims | 6 Cyl 3.5L
- 2008 Chevrolet Impala | All Trims | 6 Cyl 3.9L
$6.17
Denso® Platinum TT™ Spark Plug for 2008 Chevrolet Impala
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: 2008 Chevrolet Impala Platinum TT™ Spark Plug
Vehicle Fitment- 2008 Chevrolet Impala | All Trims | 8 Cyl 5.3L
- 2008 Chevrolet Impala | All Trims | 6 Cyl 3.5L
- 2008 Chevrolet Impala | All Trims | 6 Cyl 3.9L
$3.38
Denso® Iridium Tt™ Spark Plug for 2008 Chevrolet Impala
PartNumber: IT16Product Specifications- Notes: Gap 0.044; Iridium Pwr - Perf Upgrade w/Worlds 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: 2008 Chevrolet Impala Iridium Tt™ Spark Plug
Vehicle Fitment- 2008 Chevrolet Impala | All Trims | 8 Cyl 5.3L
- 2008 Chevrolet Impala | All Trims | 6 Cyl 3.5L
- 2008 Chevrolet Impala | All Trims | 6 Cyl 3.9L
Denso® Iridium Tt™ Spark Plug for 2008 Chevrolet Impala
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: 2008 Chevrolet Impala Iridium Tt™ Spark Plug
Vehicle Fitment- 2008 Chevrolet Impala | All Trims | 8 Cyl 5.3L
- 2008 Chevrolet Impala | All Trims | 6 Cyl 3.5L
- 2008 Chevrolet Impala | All Trims | 6 Cyl 3.9L
Denso® Platinum Tt™ Spark Plug for 2008 Chevrolet Impala
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: 2008 Chevrolet Impala Platinum Tt™ Spark Plug
Vehicle Fitment- 2008 Chevrolet Impala | All Trims | 8 Cyl 5.3L
- 2008 Chevrolet Impala | All Trims | 6 Cyl 3.5L
- 2008 Chevrolet Impala | All Trims | 6 Cyl 3.9L
Denso® Iridium Long-Life™ Spark Plug for 2008 Chevrolet Impala
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: 2008 Chevrolet Impala Iridium Long-Life™ Spark Plug
Vehicle Fitment- 2008 Chevrolet Impala | All Trims | 8 Cyl 5.3L
- 2008 Chevrolet Impala | All Trims | 6 Cyl 3.5L
- 2008 Chevrolet Impala | All Trims | 6 Cyl 3.9L
FAQ for Spark Plug Repair
Q: What should be noticed before installation?
A:
You will need to check the gap between all new and reconditioned spark plugs before installation. Pre-set gaps may have changed during handling. You can use a round wire feeler gauge to be sure of an accurate check, particularly on used plugs. Installing plugs with the wrong gap can cause poor engine performance and may even damage the engine.
By Bob
GM Specialist
01/11/2022Q: What's the recommended torque for the spark plugs?
A:
The recommended torque is 15 N.m (11 lb-ft).
By Bob
GM Specialist
01/11/2022Q: What should be done before removing the spark plugs?
A:
You will need to allow the engine to cool, clean the spark plug recess area, and use only the spark plugs specified for use in the vehicle.
By Bob
GM Specialist
01/11/2022