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DENSO X31ESR-U Resistor Spark Plug

Part of: DENSO Spark Plug

Other options in this family: DENSO 999-170-238-90 DENSO 3122 DENSO 5027 DENSO 4503 DENSO 3531

Manufacturer

Picture for manufacturer DENSO

Part Number

X31ESR-U
4 reviews
Sale Price

$4.00

In Stock (7)

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Usually delivered within 2 days

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Product Details

The DENSO X31ESR-U is a high-quality resistor spark plug designed to deliver reliable ignition performance for a wide range of small engines and powersports applications. This spark plug features DENSO's proven resistor technology to suppress electromagnetic interference (EMI) and radio frequency interference (RFI), protecting sensitive electronic components while ensuring smooth engine operation.

Key Features:

  • Resistor-type construction reduces electrical noise and protects electronic ignition systems
  • Durable copper core electrode provides excellent heat dissipation and conductivity
  • Precision-engineered insulator design prevents flashover and misfires
  • Corrosion-resistant metal shell and terminal for long service life
  • Factory pre-gapped for quick and easy installation
  • Manufactured to strict OEM specifications for reliable fit and performance

DENSO is a trusted OEM supplier known for producing high-quality ignition components that meet or exceed original equipment standards. The X31ESR-U provides consistent spark energy for optimal combustion efficiency, fuel economy, and reduced emissions.

Products specifications

Heat Range

31

Looked around online everywhere for my spark plug set. Autoplicity had what I wanted at the lowest price. Thanks guys!

It's easy ordering so far

Found Autoplicity by doing Google search looking for Corsa Sport Axle Back exhaust for my 2008 GT500. By far the best price, even cheaper than other big companies with free shipping by far. Ordered them on Thursday afternoon and got them 24 hours later in NY with the standard shipping. Could'nt be happier.

Excellent on-line merchant with outstanding customer service and the best prices on equipment and shipping. Highly reccomended!

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