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Vehicle Info NeededDENSOPART NUMBER: 313-3297
Spark Plug Iridium Long Life
$1199
More than 10 available
Ships on Nov 02, 2026
Lowest Price GuaranteeIridium Long Life Spark Plug1990-2012 Toyota, Lexus and Other Makes See Fitment Tab for All Applications Heat Range 20 0.044 in. Pre-Gap 19 mm Reach 16 mm Hex Flat Seat Resistor Type Sold Individually
Worn plugs cause misfires, hard starts and lost fuel economy. This Denso Iridium Long Life spark plug for select 1990-2012 Toyota, Lexus and Other Makes restores a strong, consistent spark.
Denso 3297 Iridium Long Life Spark Plug Features:
- Fits Select 1990-2012 Toyota, Lexus and Other Makes
- Iridium center electrode tip
- Platinum Chip ground electrode
- Heat range 20
- 0.044 in. pre-gap
- 19 mm reach
- 16 mm hex
- Flat seat
- 5000 ohm resistor
- Iridium alloy center electrode paired with a platinum ground electrode
- Fine-wire center electrode lowers required firing voltage
- Built for extended service intervals on modern engines
- Machine-rolled threads resist seizing and cross-threading
Long Life, Durability, & Performance
DENSO Iridium Long-Life Spark Plugs are specifically designed for long life, durability, and performance. An Iridium center electrode is laser welded and matched to a platinum ground electrode. This process developed by DENSO dramatically extends the life and performance.
Part TypeSpark Plug
Product LineDENSO Iridium Long Life Spark Plugs
BrandDENSO
Package Height1.0
Package Width1.0
Package Length3.5
Weight0.11 PG
Part CategoryReplacement Parts
Pre-Gap Size0.044 in
Reach19 mm
Ground Electrode Quantity1
Ground Electrode Tip DesignPlatinum Chip
QuantitySold Individually
Ground ConfigurationStandard
Washer IncludedYes
Center Electrode Core MaterialCopper
Resistance5000 ohm
Seat TypeFlat
Center Electrode Tip MaterialIridium
Ground Electrode Core MaterialNickel
Resistor TypeYes
Part FitmentDirect Fit
Manufacturer Heat Range20
Hex Size16 mm
Vendor Part Number3297
Package Qty1
Package TypeEA
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Some parts are not legal for use in California or other states with similar laws / regulations
