2011 Kia Optima Spark Plug
Browse our online catalogue to find original replacement Spark Plugs specifically designed to fit a 2011 Kia Optima.
2011 Kia Optima Spark Plug
$22.29
$14.25
10+ In Stock
Condition: New
Ships: Today, Feb. 11th
Pick-Up: Available Immediately
Pick-Up: Available Immediately
Required Per Vehicle: 4
Made in Germany
Fits: 2011 Kia Optima
Equipped With:
Engine Base: 2.4L 2359cc L4 (3.46x3.82; 88.0x97.0); Fuel Type: GAS;
Engine Base: 2.4L 2359cc L4 (3.46x3.82; 88.0x97.0); Fuel Type: GAS;
Vehicle Fitment Notes:
Original Center Electrode Material is Iridium and Ground Electrode Pin Material is Platinum Do Not Gap, Gap is Preset
Original Center Electrode Material is Iridium and Ground Electrode Pin Material is Platinum Do Not Gap, Gap is Preset
2011 Kia Optima Spark Plug
$24.09
10+ In Stock
Condition: New
Ships: Today, Feb. 11th
Pick-Up: Ready in 1 Hour (Order before 4:00 PM)
Pick-Up: Ready in 1 Hour (Order before 4:00 PM)
Required Per Vehicle: 4
Made in Japan
Fits: 2011 Kia Optima
Equipped With:
Engine Base: 2.4L 2359cc L4 (3.46x3.82; 88.0x97.0); Fuel Type: GAS;
Engine Base: 2.4L 2359cc L4 (3.46x3.82; 88.0x97.0); Fuel Type: GAS;
Vehicle Fitment Notes:
Gap 0.044in Part # DILKR6C11 OE Equivalent Design 168,000 km Factory Recommended Service Interval
Gap 0.044in Part # DILKR6C11 OE Equivalent Design 168,000 km Factory Recommended Service Interval
2011 Kia Optima Spark Plug
$24.09
10+ In Stock
Condition: New
Ships: Today, Feb. 11th
Pick-Up: Ready in 1 Hour (Order before 4:00 PM)
Pick-Up: Ready in 1 Hour (Order before 4:00 PM)
Required Per Vehicle: 4
Made in Japan
Fits: 2011 Kia Optima
Equipped With:
Engine Base: 2.4L 2359cc L4 (3.46x3.82; 88.0x97.0); Fuel Type: GAS;
Engine Base: 2.4L 2359cc L4 (3.46x3.82; 88.0x97.0); Fuel Type: GAS;
Vehicle Fitment Notes:
Gap 0.044in Stock# 93199 OE Equivalent Design 168,000 km Factory Recommended Service Interval
Gap 0.044in Stock# 93199 OE Equivalent Design 168,000 km Factory Recommended Service Interval
2011 Kia Optima Spark Plug
$24.09
10+ In Stock
Condition: New
Ships: Today, Feb. 11th
Pick-Up: Ready in 1 Hour (Order before 4:00 PM)
Pick-Up: Ready in 1 Hour (Order before 4:00 PM)
Required Per Vehicle: 4
Made in Japan
Fits: 2011 Kia Optima
Equipped With:
Engine Base: 2.4L 2359cc L4 (3.46x3.82; 88.0x97.0); Fuel Type: GAS;
Engine Base: 2.4L 2359cc L4 (3.46x3.82; 88.0x97.0); Fuel Type: GAS;
Vehicle Fitment Notes:
Part # DILKR6C11 Gap 0.044" OE Equivalent Design 168,000 km Factory Recommended Service Interval
Part # DILKR6C11 Gap 0.044" OE Equivalent Design 168,000 km Factory Recommended Service Interval
2011 Kia Optima Spark Plug
$28.18
$22.93
10+ In Stock
Condition: New
Ships: Today, Feb. 11th
Pick-Up: Ready in 1 Hour (Order before 4:00 PM)
Pick-Up: Ready in 1 Hour (Order before 4:00 PM)
Required Per Vehicle: 4
Made in Japan
Fits: 2011 Kia Optima
Equipped With:
Engine Base: 2.0L 1998cc 122ci L4 (3.39x3.39; 86.0x86.0);
Engine Base: 2.0L 1998cc 122ci L4 (3.39x3.39; 86.0x86.0);
Vehicle Fitment Notes:
Gap 0.032 DENSO is O.E. Manufacturer / Iridium Long Life Plug - Patented Iridium Alloy Plug (90% Ir) with Platinum Ground Strap OE
Gap 0.032 DENSO is O.E. Manufacturer / Iridium Long Life Plug - Patented Iridium Alloy Plug (90% Ir) with Platinum Ground Strap OE
2011 Kia Optima Spark Plug
$28.18
$22.93
10+ In Stock
Condition: New
Ships: Today, Feb. 11th
Pick-Up: Ready in 1 Hour (Order before 4:00 PM)
Pick-Up: Ready in 1 Hour (Order before 4:00 PM)
Required Per Vehicle: 4
Made in Japan
Fits: 2011 Kia Optima
Equipped With:
Engine Base: 2.4L 2359cc L4 (3.46x3.82; 88.0x97.0); Fuel Type: FULL HYBRID EV-GAS (FHEV);
Engine Base: 2.4L 2359cc L4 (3.46x3.82; 88.0x97.0); Fuel Type: FULL HYBRID EV-GAS (FHEV);
Vehicle Fitment Notes:
Gap 0.032 DENSO is O.E. Manufacturer / Iridium Long Life Plug - Patented Iridium Alloy Plug (90% Ir) with Platinum Ground Strap OE
Gap 0.032 DENSO is O.E. Manufacturer / Iridium Long Life Plug - Patented Iridium Alloy Plug (90% Ir) with Platinum Ground Strap OE
2011 Kia Optima Spark Plug
$10.20
10+ In Stock
Condition: New
Ships: Today, Feb. 11th
Pick-Up: Ready in 1 Hour (Order before 4:00 PM)
Pick-Up: Ready in 1 Hour (Order before 4:00 PM)
Required Per Vehicle: 4
Fits: 2011 Kia Optima
Equipped With:
Engine Base: 2.4L 2359cc L4 (3.46x3.82; 88.0x97.0); Fuel Type: GAS; Sub-Model: EX;
Engine Base: 2.4L 2359cc L4 (3.46x3.82; 88.0x97.0); Fuel Type: GAS; Sub-Model: EX;
Vehicle Fitment Notes:
OE Style .043"/1.1mm Iridium Enhanced Center Electrode. Proprietary V-trimmed Platinum side wire. 0.6mm finewire design.
OE Style .043"/1.1mm Iridium Enhanced Center Electrode. Proprietary V-trimmed Platinum side wire. 0.6mm finewire design.
2011 Kia Optima Spark Plug
$10.20
10+ In Stock
Condition: New
Ships: Today, Feb. 11th
Pick-Up: Ready in 1 Hour (Order before 4:00 PM)
Pick-Up: Ready in 1 Hour (Order before 4:00 PM)
Required Per Vehicle: 4
Fits: 2011 Kia Optima
Equipped With:
Engine Base: 2.4L 2359cc L4 (3.46x3.82; 88.0x97.0); Fuel Type: GAS; Sub-Model: LX;
Engine Base: 2.4L 2359cc L4 (3.46x3.82; 88.0x97.0); Fuel Type: GAS; Sub-Model: LX;
Vehicle Fitment Notes:
OE Style .043"/1.1mm Iridium Enhanced Center Electrode. Proprietary V-trimmed Platinum side wire. 0.6mm finewire design.
OE Style .043"/1.1mm Iridium Enhanced Center Electrode. Proprietary V-trimmed Platinum side wire. 0.6mm finewire design.
2011 Kia Optima Spark Plug
$10.20
10+ In Stock
Condition: New
Ships: Today, Feb. 11th
Pick-Up: Ready in 1 Hour (Order before 4:00 PM)
Pick-Up: Ready in 1 Hour (Order before 4:00 PM)
Required Per Vehicle: 4
Fits: 2011 Kia Optima
Equipped With:
Engine Base: 2.0L 1998cc 122ci L4 (3.39x3.39; 86.0x86.0);
Engine Base: 2.0L 1998cc 122ci L4 (3.39x3.39; 86.0x86.0);
Vehicle Fitment Notes:
OE Style Iridium Enhanced Center Electrode. Proprietary V-trimmed Platinum side wire. 0.6mm finewire design. .030"/0.8mm
OE Style Iridium Enhanced Center Electrode. Proprietary V-trimmed Platinum side wire. 0.6mm finewire design. .030"/0.8mm
2011 Kia Optima Spark Plug
$10.20
10+ In Stock
Condition: New
Ships: Today, Feb. 11th
Pick-Up: Ready in 1 Hour (Order before 4:00 PM)
Pick-Up: Ready in 1 Hour (Order before 4:00 PM)
Required Per Vehicle: 4
Fits: 2011 Kia Optima
Equipped With:
Engine Base: 2.4L 2359cc L4 (3.46x3.82; 88.0x97.0); Fuel Type: ELECTRIC/GAS;
Engine Base: 2.4L 2359cc L4 (3.46x3.82; 88.0x97.0); Fuel Type: ELECTRIC/GAS;
Vehicle Fitment Notes:
OE Style .030"/0.8mm Iridium Enhanced Center Electrode. Proprietary V-trimmed Platinum side wire. 0.6mm finewire design.
OE Style .030"/0.8mm Iridium Enhanced Center Electrode. Proprietary V-trimmed Platinum side wire. 0.6mm finewire design.
2011 Kia Optima Spark Plug
$20.31
$16.14
10+ In Stock
Condition: New
Ships: Today, Feb. 11th
Pick-Up: Ready in 1 Hour (Order before 4:00 PM)
Pick-Up: Ready in 1 Hour (Order before 4:00 PM)
Required Per Vehicle: 4
Made in Japan
Fits: 2011 Kia Optima
Equipped With:
Engine Base: 2.0L 1998cc 122ci L4 (3.39x3.39; 86.0x86.0);
Engine Base: 2.0L 1998cc 122ci L4 (3.39x3.39; 86.0x86.0);
Vehicle Fitment Notes:
Gap 0.035 Iridium Power - Performance Upgrade with Worlds Smallest Center Electrode (0.4 mm Dia.) & Tapered Tip Patented U-Groove Design & Patented Ir Alloy (90% Ir)
Gap 0.035 Iridium Power - Performance Upgrade with Worlds Smallest Center Electrode (0.4 mm Dia.) & Tapered Tip Patented U-Groove Design & Patented Ir Alloy (90% Ir)
2011 Kia Optima Spark Plug
$20.31
$16.14
10+ In Stock
Condition: New
Ships: Today, Feb. 11th
Pick-Up: Ready in 1 Hour (Order before 4:00 PM)
Pick-Up: Ready in 1 Hour (Order before 4:00 PM)
Required Per Vehicle: 4
Made in Japan
Fits: 2011 Kia Optima
Equipped With:
Engine Base: 2.4L 2359cc L4 (3.46x3.82; 88.0x97.0); Fuel Type: FULL HYBRID EV-GAS (FHEV);
Engine Base: 2.4L 2359cc L4 (3.46x3.82; 88.0x97.0); Fuel Type: FULL HYBRID EV-GAS (FHEV);
Vehicle Fitment Notes:
Gap 0.035 Iridium Power - Performance Upgrade with Worlds Smallest Center Electrode (0.4 mm Dia.) & Tapered Tip Patented U-Groove Design & Patented Ir Alloy (90% Ir)
Gap 0.035 Iridium Power - Performance Upgrade with Worlds Smallest Center Electrode (0.4 mm Dia.) & Tapered Tip Patented U-Groove Design & Patented Ir Alloy (90% Ir)
2011 Kia Optima Spark Plug
$39.43
$32.38
10+ In Stock
Condition: New
Ships: Today, Feb. 11th
Pick-Up: Ready in 1 Hour (Order before 4:00 PM)
Pick-Up: Ready in 1 Hour (Order before 4:00 PM)
Required Per Vehicle: 4
Made in Japan
Fits: 2011 Kia Optima
Equipped With:
Engine Base: 2.4L 2359cc L4 (3.46x3.82; 88.0x97.0); Fuel Type: GAS;
Engine Base: 2.4L 2359cc L4 (3.46x3.82; 88.0x97.0); Fuel Type: GAS;
Vehicle Fitment Notes:
Gap 0.044 DENSO is O.E. Manufacturer / Iridium Long Life Plug - Patented Iridium Alloy Plug (90% Ir) with Platinum Ground Strap OE
Gap 0.044 DENSO is O.E. Manufacturer / Iridium Long Life Plug - Patented Iridium Alloy Plug (90% Ir) with Platinum Ground Strap OE
2011 Kia Optima Spark Plug
$14.48
Out of Stock
Condition: New
Required Per Vehicle: 4
Made in Germany
Fits: 2011 Kia Optima
Equipped With:
Engine Base: 2.0L 1998cc 122ci L4 (3.39x3.39; 86.0x86.0);
Engine Base: 2.0L 1998cc 122ci L4 (3.39x3.39; 86.0x86.0);
Vehicle Fitment Notes:
Original Center Electrode Material is Iridium Do Not Gap, Gap is Preset
Original Center Electrode Material is Iridium Do Not Gap, Gap is Preset
2011 Kia Optima Spark Plug
$14.48
Out of Stock
Condition: New
Required Per Vehicle: 4
Made in Germany
Fits: 2011 Kia Optima
Equipped With:
Engine Base: 2.4L 2359cc L4 (3.46x3.82; 88.0x97.0); Fuel Type: FULL HYBRID EV-GAS (FHEV);
Engine Base: 2.4L 2359cc L4 (3.46x3.82; 88.0x97.0); Fuel Type: FULL HYBRID EV-GAS (FHEV);
Vehicle Fitment Notes:
Original Center Electrode Material is Iridium Do Not Gap, Gap is Preset
Original Center Electrode Material is Iridium Do Not Gap, Gap is Preset
2011 Kia Optima Spark Plug
$21.02
Out of Stock
Condition: New
Required Per Vehicle: 4
Fits: 2011 Kia Optima
Equipped With:
Engine Base: 2.4L 2359cc L4 (3.46x3.82; 88.0x97.0); Fuel Type: GAS;
Engine Base: 2.4L 2359cc L4 (3.46x3.82; 88.0x97.0); Fuel Type: GAS;
Vehicle Fitment Notes:
Original Center Electrode Material is Iridium and Ground Electrode Pin Material is Platinum Do Not Gap, Gap is Preset
Original Center Electrode Material is Iridium and Ground Electrode Pin Material is Platinum Do Not Gap, Gap is Preset
2011 Kia Optima Spark Plug
$12.39
Out of Stock
Condition: New
Required Per Vehicle: 4
Made in Germany
Fits: 2011 Kia Optima
Equipped With:
Engine Base: 2.0L 1998cc 122ci L4 (3.39x3.39; 86.0x86.0);
Engine Base: 2.0L 1998cc 122ci L4 (3.39x3.39; 86.0x86.0);
Vehicle Fitment Notes:
Original Center Electrode Material is Iridium Do Not Gap, Gap is Preset
Original Center Electrode Material is Iridium Do Not Gap, Gap is Preset
2011 Kia Optima Spark Plug
$12.39
Out of Stock
Condition: New
Required Per Vehicle: 4
Made in Germany
Fits: 2011 Kia Optima
Equipped With:
Engine Base: 2.4L 2359cc L4 (3.46x3.82; 88.0x97.0); Fuel Type: FULL HYBRID EV-GAS (FHEV);
Engine Base: 2.4L 2359cc L4 (3.46x3.82; 88.0x97.0); Fuel Type: FULL HYBRID EV-GAS (FHEV);
Vehicle Fitment Notes:
Original Center Electrode Material is Iridium Do Not Gap, Gap is Preset
Original Center Electrode Material is Iridium Do Not Gap, Gap is Preset
2011 Kia Optima Spark Plug
$20.16
Out of Stock
Condition: New
Required Per Vehicle: 4
Made in Korea
Fits: 2011 Kia Optima
Equipped With:
Engine Base: 2.0L 1998cc 122ci L4 (3.39x3.39; 86.0x86.0);
Engine Base: 2.0L 1998cc 122ci L4 (3.39x3.39; 86.0x86.0);
Vehicle Fitment Notes:
Gap 0.036in Actual OE Part Stock# 92422 72,000 km Factory Recommended Service Interval
Gap 0.036in Actual OE Part Stock# 92422 72,000 km Factory Recommended Service Interval
2011 Kia Optima Spark Plug
$20.16
Out of Stock
Condition: New
Required Per Vehicle: 4
Made in Korea
Fits: 2011 Kia Optima
Equipped With:
Engine Base: 2.0L 1998cc 122ci L4 (3.39x3.39; 86.0x86.0);
Engine Base: 2.0L 1998cc 122ci L4 (3.39x3.39; 86.0x86.0);
Vehicle Fitment Notes:
Gap 0.036in Part # SILZKR8E9G Actual OE Manufacturer 72,000 km Factory Recommended Service Interval
Gap 0.036in Part # SILZKR8E9G Actual OE Manufacturer 72,000 km Factory Recommended Service Interval
2011 Kia Optima Spark Plug
$20.16
Out of Stock
Condition: New
Required Per Vehicle: 4
Made in Korea
Fits: 2011 Kia Optima
Equipped With:
Engine Base: 2.0L 1998cc 122ci L4 (3.39x3.39; 86.0x86.0);
Engine Base: 2.0L 1998cc 122ci L4 (3.39x3.39; 86.0x86.0);
Vehicle Fitment Notes:
Part # SILZKR8E9G Gap 0.036" Actual OE Manufacturer 72,000 km Factory Recommended Service Interval
Part # SILZKR8E9G Gap 0.036" Actual OE Manufacturer 72,000 km Factory Recommended Service Interval
2011 Kia Optima Spark Plug
$20.16
Out of Stock
Condition: New
Required Per Vehicle: 4
Made in Korea
Fits: 2011 Kia Optima
Equipped With:
Engine Base: 2.4L 2359cc L4 (3.46x3.82; 88.0x97.0); Fuel Type: FULL HYBRID EV-GAS (FHEV);
Engine Base: 2.4L 2359cc L4 (3.46x3.82; 88.0x97.0); Fuel Type: FULL HYBRID EV-GAS (FHEV);
Vehicle Fitment Notes:
Gap 0.036in Actual OE Part Stock# 92422 168,000 km Factory Recommended Service Interval
Gap 0.036in Actual OE Part Stock# 92422 168,000 km Factory Recommended Service Interval
2011 Kia Optima Spark Plug
$20.16
Out of Stock
Condition: New
Required Per Vehicle: 4
Made in Korea
Fits: 2011 Kia Optima
Equipped With:
Engine Base: 2.4L 2359cc L4 (3.46x3.82; 88.0x97.0); Fuel Type: FULL HYBRID EV-GAS (FHEV);
Engine Base: 2.4L 2359cc L4 (3.46x3.82; 88.0x97.0); Fuel Type: FULL HYBRID EV-GAS (FHEV);
Vehicle Fitment Notes:
Gap 0.036in Part # SILZKR8E9G Actual OE Manufacturer 168,000 km Factory Recommended Service Interval
Gap 0.036in Part # SILZKR8E9G Actual OE Manufacturer 168,000 km Factory Recommended Service Interval
2011 Kia Optima Spark Plug
$20.16
Out of Stock
Condition: New
Required Per Vehicle: 4
Made in Korea
Fits: 2011 Kia Optima
Equipped With:
Engine Base: 2.4L 2359cc L4 (3.46x3.82; 88.0x97.0); Fuel Type: FULL HYBRID EV-GAS (FHEV);
Engine Base: 2.4L 2359cc L4 (3.46x3.82; 88.0x97.0); Fuel Type: FULL HYBRID EV-GAS (FHEV);
Vehicle Fitment Notes:
Part # SILZKR8E9G Gap 0.036" Actual OE Manufacturer 168,000 km Factory Recommended Service Interval
Part # SILZKR8E9G Gap 0.036" Actual OE Manufacturer 168,000 km Factory Recommended Service Interval
2011 Kia Optima Spark Plug
$8.47
Out of Stock
Condition: New
Required Per Vehicle: 4
Fits: 2011 Kia Optima
Equipped With:
Engine Base: 2.4L 2359cc L4 (3.46x3.82; 88.0x97.0); Fuel Type: GAS; Sub-Model: EX;
Engine Base: 2.4L 2359cc L4 (3.46x3.82; 88.0x97.0); Fuel Type: GAS; Sub-Model: EX;
Vehicle Fitment Notes:
.043"/1.1mm
.043"/1.1mm
2011 Kia Optima Spark Plug
$8.47
Out of Stock
Condition: New
Required Per Vehicle: 4
Fits: 2011 Kia Optima
Equipped With:
Engine Base: 2.4L 2359cc L4 (3.46x3.82; 88.0x97.0); Fuel Type: GAS; Sub-Model: LX;
Engine Base: 2.4L 2359cc L4 (3.46x3.82; 88.0x97.0); Fuel Type: GAS; Sub-Model: LX;
Vehicle Fitment Notes:
.043"/1.1mm
.043"/1.1mm
2011 Kia Optima Spark Plug
$11.77
Out of Stock
Condition: New
Required Per Vehicle: 4
Fits: 2011 Kia Optima
Equipped With:
Engine Base: 2.0L 1998cc 122ci L4 (3.39x3.39; 86.0x86.0);
Engine Base: 2.0L 1998cc 122ci L4 (3.39x3.39; 86.0x86.0);
Vehicle Fitment Notes:
OE Style New Autolite Iridium Ultra Finewire is an OE replacement plug with a laser welded center electrode, an ultra thin 0.5mm Iridium centerwire with longer 1.4mm tip providing maximum fuel efficiency. 100K miles or more service life. .030"/0.8mm
OE Style New Autolite Iridium Ultra Finewire is an OE replacement plug with a laser welded center electrode, an ultra thin 0.5mm Iridium centerwire with longer 1.4mm tip providing maximum fuel efficiency. 100K miles or more service life. .030"/0.8mm
2011 Kia Optima Spark Plug
$11.77
Out of Stock
Condition: New
Required Per Vehicle: 4
Fits: 2011 Kia Optima
Equipped With:
Engine Base: 2.4L 2359cc L4 (3.46x3.82; 88.0x97.0); Fuel Type: ELECTRIC/GAS;
Engine Base: 2.4L 2359cc L4 (3.46x3.82; 88.0x97.0); Fuel Type: ELECTRIC/GAS;
Vehicle Fitment Notes:
OE Style .030"/0.8mm New Autolite Iridium Ultra Finewire is an OE replacement plug with a laser welded center electrode, an ultra thin 0.5mm Iridium centerwire with longer 1.4mm tip providing maximum fuel efficiency. 100K miles or more service life.
OE Style .030"/0.8mm New Autolite Iridium Ultra Finewire is an OE replacement plug with a laser welded center electrode, an ultra thin 0.5mm Iridium centerwire with longer 1.4mm tip providing maximum fuel efficiency. 100K miles or more service life.
2011 Kia Optima Spark Plug
$11.77
Out of Stock
Condition: New
Required Per Vehicle: 4
Fits: 2011 Kia Optima
Equipped With:
Engine Base: 2.4L 2359cc L4 (3.46x3.82; 88.0x97.0); Fuel Type: GAS; Sub-Model: EX;
Engine Base: 2.4L 2359cc L4 (3.46x3.82; 88.0x97.0); Fuel Type: GAS; Sub-Model: EX;
Vehicle Fitment Notes:
OE Style .043"/1.1mm New Autolite Iridium Ultra Finewire is an OE replacement plug with a laser welded center electrode, an ultra thin 0.5mm Iridium centerwire with longer 1.4mm tip providing maximum fuel efficiency. 100K miles or more service life.
OE Style .043"/1.1mm New Autolite Iridium Ultra Finewire is an OE replacement plug with a laser welded center electrode, an ultra thin 0.5mm Iridium centerwire with longer 1.4mm tip providing maximum fuel efficiency. 100K miles or more service life.
2011 Kia Optima Spark Plug
$11.77
Out of Stock
Condition: New
Required Per Vehicle: 4
Fits: 2011 Kia Optima
Equipped With:
Engine Base: 2.4L 2359cc L4 (3.46x3.82; 88.0x97.0); Fuel Type: GAS; Sub-Model: LX;
Engine Base: 2.4L 2359cc L4 (3.46x3.82; 88.0x97.0); Fuel Type: GAS; Sub-Model: LX;
Vehicle Fitment Notes:
OE Style .043"/1.1mm New Autolite Iridium Ultra Finewire is an OE replacement plug with a laser welded center electrode, an ultra thin 0.5mm Iridium centerwire with longer 1.4mm tip providing maximum fuel efficiency. 100K miles or more service life.
OE Style .043"/1.1mm New Autolite Iridium Ultra Finewire is an OE replacement plug with a laser welded center electrode, an ultra thin 0.5mm Iridium centerwire with longer 1.4mm tip providing maximum fuel efficiency. 100K miles or more service life.