Brands Vehicles
Lowest Prices
Free Returns
Online Since 2009

NGK 91731 Spark Plug

NGK 91731 Spark Plug Image 1
NGK 91731 Spark Plug Image 2
NGK 91731 Spark Plug Image 3
NGK 91731 Spark Plug

NGK
Brand:NGK
Part Number: 91731
UPC: 087295917312
Weight: 0.09 lbs
Condition:New



Availability:
0 in Stock
 OUT OF STOCK

Product Information

Description:

Get the NGK 91731 Spark Plug for your vehicle. Buy now and secure your purchase online!

NGK Spark Plugs, Inc. is the largest OE supplier and manufacturer of spark plugs for domestic and import vehicles in North America. Its OE legacy, unsurpassed quality and leading vehicles in operation coverage reinforces NGK as The Ignition Specialist. With over 80 years of automotive expertise NGK has built a reputation for quality and reliability; manufacturing spark plugs for virtually every automotive, motorcycle, marine and small engine application. We are committed to be the premier partner with our customers, while maintaining original equipment standards for the highest durability and operational performance. With state-of-the-art manufacturing, inventory and distribution facilities in North America and across the globe, NGK is dedicated to providing customers with world-class products and services.

Features and Benefits:

  • Iridium tipped center electrode provides durability six times harder than platinum. NGKs high-grade pure alumina ceramic and 98% pure copper core prevents the spark plug from overheating while providing reliable starts.
  • Laser Iridium plugs are tested to the highest standards to ensure quality and durability. Engineered specifically for OE applications.
  • NGK Laser Iridium High Ignitability spark plugs are designed with the most advanced OE tip configurations to maximize service life and combustion efficiency resulting in a quicker throttle response, smoother idle and better cold starts.

Specifications:

Center Electrode Core Material:
Copper
Center Electrode Tip Material:
Iridium
Electrical Terminal Type:
Cup
Ground Configuration:
Standard
Ground Electrode Core Material:
Copper
Ground Electrode Quantity:
1
Ground Electrode Tip Design:
Projected Square Platinum Electrode - High Ignitability
Hex Size:
14 Bi-Hex mm
Insulator Height:
51.00 mm
Manufacturer Heat Range:
9
Part Number:
SILKGR9A7EG
Pre-Gap Size:
.028 in.
Reach:
5.6 mm
Resistance:
5500.0 Ohm
Resistor Type:
Yes
Seat Type:
Flat
Stock Number:
91731
Thread Diameter:
12.00 mm
NGK #:
91731
NGK #:
TBD
Country of Origin:
JP

Manufacturer Warranty:

2 Months

Select a vehicle to narrow NGK 91731 Spark Plug fitment info!

Last Updated: 10/04/2023

Years Vehicle Per Vehicle Fit NotesFitment Notes
Porsche 718 Boxster

2.5L H4 Gas DOHC Turbo
4
 
Laser Iridium High Ignitability Spark Plug
OE Spark Plug Is High Ignitability. For Optimal Performance, Replace With High Ignitability Spark Plugs.
Gap 0.028
Actual OE Manufacturer
40,000 mi OE Mfr Recommended Service Interval
 

Porsche 718 Boxster



2.5L H4 Gas DOHC Turbo Laser Iridium High Ignitability Spark Plug
OE Spark Plug Is High Ignitability. For Optimal Performance, Replace With High Ignitability Spark Plugs.
Gap 0.028
Actual OE Manufacturer
40,000 mi OE Mfr Recommended Service Interval

4 Per Vehicle
Porsche 718 Cayman

2.5L H4 Gas DOHC Turbo
4
 
Laser Iridium High Ignitability Spark Plug
OE Spark Plug Is High Ignitability. For Optimal Performance, Replace With High Ignitability Spark Plugs.
Gap 0.028
Actual OE Manufacturer
40,000 mi OE Mfr Recommended Service Interval
 

Porsche 718 Cayman



2.5L H4 Gas DOHC Turbo Laser Iridium High Ignitability Spark Plug
OE Spark Plug Is High Ignitability. For Optimal Performance, Replace With High Ignitability Spark Plugs.
Gap 0.028
Actual OE Manufacturer
40,000 mi OE Mfr Recommended Service Interval

4 Per Vehicle