2004 Subaru Legacy Spark Plugs
Save up to 40% on original replacement 2004 Subaru Legacy Spark Plugs. Navigate our online catalogue to find Spark Plugs and other parts designed specifically to fit a 2004 Subaru Legacy.
Spark Plug
$9.33
$6.20
10+ In Stock
Ships: Monday Sep. 29th
Pick-Up: Ready in 1 Hour (Order before 12:00 PM)
Pick-Up: Ready in 1 Hour (Order before 12:00 PM)
Condition: New
Required Per Vehicle: 4
Required Per Vehicle: 4
Made in Germany
Vehicle fitment:
Engine Base: 2.5L 2458cc H4 (3.92x3.11; 99.5x79.0);
Engine Base: 2.5L 2458cc H4 (3.92x3.11; 99.5x79.0);
Vehicle Fitment Notes:
with California Emissions System Original Center Electrode Material is Platinum Do Not Gap, Gap is Preset
with California Emissions System Original Center Electrode Material is Platinum Do Not Gap, Gap is Preset
Spark Plug
$9.33
$5.93
10+ In Stock
Ships: Monday Sep. 29th
Pick-Up: Available Immediately
Pick-Up: Available Immediately
Condition: New
Required Per Vehicle: 4
Required Per Vehicle: 4
Made in Germany
Vehicle fitment:
Engine Base: 2.5L 2458cc H4 (3.92x3.11; 99.5x79.0);
Engine Base: 2.5L 2458cc H4 (3.92x3.11; 99.5x79.0);
Vehicle Fitment Notes:
without California Emissions System Original Center Electrode Material is Copper/Nickel Do Not Gap, Gap is Preset
without California Emissions System Original Center Electrode Material is Copper/Nickel Do Not Gap, Gap is Preset
Spark Plug
$5.96
$3.15
In Stock
Ships: Monday Sep. 29th
Pick-Up: Ready in 1 Hour (Order before 12:00 PM)
Pick-Up: Ready in 1 Hour (Order before 12:00 PM)
Condition: New
Required Per Vehicle: 4
Required Per Vehicle: 4
Vehicle fitment:
Engine Base: 2.5L 2458cc H4 (3.92x3.11; 99.5x79.0);
Engine Base: 2.5L 2458cc H4 (3.92x3.11; 99.5x79.0);
Vehicle Fitment Notes:
without California Emissions System Original Center Electrode Material is Copper/Nickel Gap 0.04 in
without California Emissions System Original Center Electrode Material is Copper/Nickel Gap 0.04 in
Spark Plug
$13.46
$8.73
10+ In Stock
Ships: Monday Sep. 29th
Pick-Up: Ready in 1 Hour (Order before 12:00 PM)
Pick-Up: Ready in 1 Hour (Order before 12:00 PM)
Condition: New
Required Per Vehicle: 4
Required Per Vehicle: 4
Made in Germany
Vehicle fitment:
Engine Base: 2.5L 2458cc H4 (3.92x3.11; 99.5x79.0);
Engine Base: 2.5L 2458cc H4 (3.92x3.11; 99.5x79.0);
Vehicle Fitment Notes:
with California Emissions System Original Center Electrode Material is Platinum Do Not Gap, Gap is Preset
with California Emissions System Original Center Electrode Material is Platinum Do Not Gap, Gap is Preset
Spark Plug
$13.46
$9.19
10+ In Stock
Ships: Monday Sep. 29th
Pick-Up: Ready in 2-3 Hours (Order before 11:00 AM)
Pick-Up: Ready in 2-3 Hours (Order before 11:00 AM)
Condition: New
Required Per Vehicle: 4
Required Per Vehicle: 4
Made in Germany
Vehicle fitment:
Engine Base: 2.5L 2458cc H4 (3.92x3.11; 99.5x79.0);
Engine Base: 2.5L 2458cc H4 (3.92x3.11; 99.5x79.0);
Vehicle Fitment Notes:
without California Emissions System Original Center Electrode Material is Copper/Nickel Do Not Gap, Gap is Preset
without California Emissions System Original Center Electrode Material is Copper/Nickel Do Not Gap, Gap is Preset
Spark Plug
$17.62
$10.90
10+ In Stock
Ships: Monday Sep. 29th
Pick-Up: Ready in 1 Hour (Order before 12:00 PM)
Pick-Up: Ready in 1 Hour (Order before 12:00 PM)
Condition: New
Required Per Vehicle: 4
Required Per Vehicle: 4
Made in Germany
Vehicle fitment:
Engine Base: 2.5L 2458cc H4 (3.92x3.11; 99.5x79.0);
Engine Base: 2.5L 2458cc H4 (3.92x3.11; 99.5x79.0);
Vehicle Fitment Notes:
with California Emissions System Original Center Electrode Material is Platinum Do Not Gap, Gap is Preset
with California Emissions System Original Center Electrode Material is Platinum Do Not Gap, Gap is Preset
Spark Plug
$17.62
$10.86
10+ In Stock
Ships: Monday Sep. 29th
Pick-Up: Ready in 2-3 Hours (Order before 11:00 AM)
Pick-Up: Ready in 2-3 Hours (Order before 11:00 AM)
Condition: New
Required Per Vehicle: 4
Required Per Vehicle: 4
Made in Germany
Vehicle fitment:
Engine Base: 2.5L 2458cc H4 (3.92x3.11; 99.5x79.0);
Engine Base: 2.5L 2458cc H4 (3.92x3.11; 99.5x79.0);
Vehicle Fitment Notes:
without California Emissions System Original Center Electrode Material is Copper/Nickel Do Not Gap, Gap is Preset
without California Emissions System Original Center Electrode Material is Copper/Nickel Do Not Gap, Gap is Preset
Spark Plug
$4.51
$4.28
10+ In Stock
Ships: Monday Sep. 29th
Pick-Up: Ready in 1 Hour (Order before 12:00 PM)
Pick-Up: Ready in 1 Hour (Order before 12:00 PM)
Condition: New
Required Per Vehicle: 4
Required Per Vehicle: 4
Made in Japan
Vehicle fitment:
Engine Base: 2.5L 2458cc H4 (3.92x3.11; 99.5x79.0);
Engine Base: 2.5L 2458cc H4 (3.92x3.11; 99.5x79.0);
Vehicle Fitment Notes:
Gap 0.044 O.E. Recommended Resistor Plug with Patented U-Groove Design
Gap 0.044 O.E. Recommended Resistor Plug with Patented U-Groove Design
Spark Plug
$17.59
$15.90
10+ In Stock
Ships: Monday Sep. 29th
Pick-Up: Ready in 1 Hour (Order before 12:00 PM)
Pick-Up: Ready in 1 Hour (Order before 12:00 PM)
Condition: New
Required Per Vehicle: 4
Required Per Vehicle: 4
Made in Japan
Vehicle fitment:
Engine Base: 2.5L 2458cc H4 (3.92x3.11; 99.5x79.0);
Engine Base: 2.5L 2458cc H4 (3.92x3.11; 99.5x79.0);
Vehicle Fitment Notes:
Gap 0.044 Double Platinum Plug - Extra Long Life Double Platinum Plug with Platinum Ground Strap
Gap 0.044 Double Platinum Plug - Extra Long Life Double Platinum Plug with Platinum Ground Strap
Spark Plug
$27.66
$19.30
10+ In Stock
Ships: Monday Sep. 29th
Pick-Up: Ready in 1 Hour (Order before 12:00 PM)
Pick-Up: Ready in 1 Hour (Order before 12:00 PM)
Condition: New
Required Per Vehicle: 4
Required Per Vehicle: 4
Made in Japan
Vehicle fitment:
Engine Base: 2.5L 2458cc H4 (3.92x3.11; 99.5x79.0);
Engine Base: 2.5L 2458cc H4 (3.92x3.11; 99.5x79.0);
Vehicle Fitment Notes:
Gap 0.044 Iridium Long Life - Patented Iridium Alloy Plug (90% Ir) with Platinum Ground Strap
Gap 0.044 Iridium Long Life - Patented Iridium Alloy Plug (90% Ir) with Platinum Ground Strap
Spark Plug
$7.64
$7.34
10+ In Stock
Ships: Monday Sep. 29th
Pick-Up: Ready in 1 Hour (Order before 12:00 PM)
Pick-Up: Ready in 1 Hour (Order before 12:00 PM)
Condition: New
Required Per Vehicle: 4
Required Per Vehicle: 4
Made in Japan
Vehicle fitment:
Engine Base: 2.5L 2458cc H4 (3.92x3.11; 99.5x79.0);
Engine Base: 2.5L 2458cc H4 (3.92x3.11; 99.5x79.0);
Vehicle Fitment Notes:
Gap 0.040 Platinum TT - Twin-Tip Technology Design with Platinum Center Electrode and Titanium Enhanced Ground Strap
Gap 0.040 Platinum TT - Twin-Tip Technology Design with Platinum Center Electrode and Titanium Enhanced Ground Strap
Spark Plug
$18.03
$14.18
10+ In Stock
Ships: Monday Sep. 29th
Pick-Up: Ready in 1 Hour (Order before 12:00 PM)
Pick-Up: Ready in 1 Hour (Order before 12:00 PM)
Condition: New
Required Per Vehicle: 4
Required Per Vehicle: 4
Made in Japan
Vehicle fitment:
Engine Base: 2.5L 2458cc H4 (3.92x3.11; 99.5x79.0);
Engine Base: 2.5L 2458cc H4 (3.92x3.11; 99.5x79.0);
Vehicle Fitment Notes:
Gap 0.040 Iridium TT - Ultimate Endurance and Power, 0.4mm Iridium and 0.7mm Platinum Twin-Tip Technology
Gap 0.040 Iridium TT - Ultimate Endurance and Power, 0.4mm Iridium and 0.7mm Platinum Twin-Tip Technology
Spark Plug
$15.80
$12.79
10+ In Stock
Ships: Monday Sep. 29th
Pick-Up: Ready in 1 Hour (Order before 12:00 PM)
Pick-Up: Ready in 1 Hour (Order before 12:00 PM)
Condition: New
Required Per Vehicle: 4
Required Per Vehicle: 4
Made in Japan
Vehicle fitment:
Engine Base: 2.5L 2458cc H4 (3.92x3.11; 99.5x79.0);
Engine Base: 2.5L 2458cc H4 (3.92x3.11; 99.5x79.0);
Vehicle Fitment Notes:
Gap 0.044 Iridium Power - Performance Upgrade with World's Smallest Center Electrode (0.4 mm Dia.) & Tapered Tip Patented U-Groove Design & Patented Ir Alloy (90% Ir)
Gap 0.044 Iridium Power - Performance Upgrade with World's Smallest Center Electrode (0.4 mm Dia.) & Tapered Tip Patented U-Groove Design & Patented Ir Alloy (90% Ir)
Spark Plug
$5.09
$4.54
10+ In Stock
Ships: Monday Sep. 29th
Pick-Up: Ready in 1 Hour (Order before 12:00 PM)
Pick-Up: Ready in 1 Hour (Order before 12:00 PM)
Condition: New
Required Per Vehicle: 4
Required Per Vehicle: 4
Made in Japan
Vehicle fitment:
Engine Base: 2.5L 2458cc H4 (3.92x3.11; 99.5x79.0);
Engine Base: 2.5L 2458cc H4 (3.92x3.11; 99.5x79.0);
Vehicle Fitment Notes:
with Federal Emissions System Gap 0.044in Part # BKR6E-11 Actual OE Manufacturer 48,000 km Factory Recommended Service Interval
with Federal Emissions System Gap 0.044in Part # BKR6E-11 Actual OE Manufacturer 48,000 km Factory Recommended Service Interval
Spark Plug
$11.28
$13.97
50+ In Stock
Ships: Monday Sep. 29th
Pick-Up: Ready in 1 Hour (Order before 12:00 PM)
Pick-Up: Ready in 1 Hour (Order before 12:00 PM)
Condition: New
Required Per Vehicle: 4
Required Per Vehicle: 4
Made in Japan
Vehicle fitment:
Engine Base: 2.5L 2458cc H4 (3.92x3.11; 99.5x79.0);
Engine Base: 2.5L 2458cc H4 (3.92x3.11; 99.5x79.0);
Vehicle Fitment Notes:
with Federal Emissions System Gap 0.044in Part # BKR6EIX-11
with Federal Emissions System Gap 0.044in Part # BKR6EIX-11
Spark Plug
$14.01
$15.14
10+ In Stock
Ships: Monday Sep. 29th
Pick-Up: Ready in 1 Hour (Order before 12:00 PM)
Pick-Up: Ready in 1 Hour (Order before 12:00 PM)
Condition: New
Required Per Vehicle: 4
Required Per Vehicle: 4
Made in Japan
Vehicle fitment:
Engine Base: 2.5L 2458cc H4 (3.92x3.11; 99.5x79.0);
Engine Base: 2.5L 2458cc H4 (3.92x3.11; 99.5x79.0);
Vehicle Fitment Notes:
Gap 0.044in Actual OE Part Stock# 5463 48,000 km Factory Recommended Service Interval
Gap 0.044in Actual OE Part Stock# 5463 48,000 km Factory Recommended Service Interval
Spark Plug
$14.01
$15.14
10+ In Stock
Ships: Monday Sep. 29th
Pick-Up: Ready in 1 Hour (Order before 12:00 PM)
Pick-Up: Ready in 1 Hour (Order before 12:00 PM)
Condition: New
Required Per Vehicle: 4
Required Per Vehicle: 4
Made in Japan
Vehicle fitment:
Engine Base: 2.5L 2458cc H4 (3.92x3.11; 99.5x79.0);
Engine Base: 2.5L 2458cc H4 (3.92x3.11; 99.5x79.0);
Vehicle Fitment Notes:
with California Emissions System Gap 0.044in Part # FR5AP-11 Actual OE Manufacturer 96,000 km Factory Recommended Service Interval
with California Emissions System Gap 0.044in Part # FR5AP-11 Actual OE Manufacturer 96,000 km Factory Recommended Service Interval
Spark Plug
$15.98
$13.85
50+ In Stock
Ships: Monday Sep. 29th
Pick-Up: Available Immediately
Pick-Up: Available Immediately
Condition: New
Required Per Vehicle: 4
Required Per Vehicle: 4
Made in Japan
Vehicle fitment:
Engine Base: 2.5L 2458cc H4 (3.92x3.11; 99.5x79.0);
Engine Base: 2.5L 2458cc H4 (3.92x3.11; 99.5x79.0);
Vehicle Fitment Notes:
Gap 0.044in Stock# 5464
Gap 0.044in Stock# 5464
Spark Plug
$15.98
$13.85
50+ In Stock
Ships: Monday Sep. 29th
Pick-Up: Available Immediately
Pick-Up: Available Immediately
Condition: New
Required Per Vehicle: 4
Required Per Vehicle: 4
Made in Japan
Vehicle fitment:
Engine Base: 2.5L 2458cc H4 (3.92x3.11; 99.5x79.0);
Engine Base: 2.5L 2458cc H4 (3.92x3.11; 99.5x79.0);
Vehicle Fitment Notes:
with California Emissions System Gap 0.044in Part # BKR5EIX-11
with California Emissions System Gap 0.044in Part # BKR5EIX-11
Spark Plug
$26.25
$20.47
10+ In Stock
Ships: Monday Sep. 29th
Pick-Up: Ready in 1 Hour (Order before 12:00 PM)
Pick-Up: Ready in 1 Hour (Order before 12:00 PM)
Condition: New
Required Per Vehicle: 4
Required Per Vehicle: 4
Made in Japan
Vehicle fitment:
Engine Base: 2.5L 2458cc H4 (3.92x3.11; 99.5x79.0);
Engine Base: 2.5L 2458cc H4 (3.92x3.11; 99.5x79.0);
Vehicle Fitment Notes:
with Federal Emissions System Gap 0.044in Alternate Platinum Spark Plug Part # PFR6G-11
with Federal Emissions System Gap 0.044in Alternate Platinum Spark Plug Part # PFR6G-11
Spark Plug
$8.80
$6.77
50+ In Stock
Ships: Monday Sep. 29th
Pick-Up: Available Immediately
Pick-Up: Available Immediately
Condition: New
Required Per Vehicle: 4
Required Per Vehicle: 4
Made in Japan
Vehicle fitment:
Engine Base: 2.5L 2458cc H4 (3.92x3.11; 99.5x79.0);
Engine Base: 2.5L 2458cc H4 (3.92x3.11; 99.5x79.0);
Vehicle Fitment Notes:
Gap 0.044in Stock# 7090
Gap 0.044in Stock# 7090
Spark Plug
$8.80
$6.77
50+ In Stock
Ships: Monday Sep. 29th
Pick-Up: Available Immediately
Pick-Up: Available Immediately
Condition: New
Required Per Vehicle: 4
Required Per Vehicle: 4
Made in Japan
Vehicle fitment:
Engine Base: 2.5L 2458cc H4 (3.92x3.11; 99.5x79.0);
Engine Base: 2.5L 2458cc H4 (3.92x3.11; 99.5x79.0);
Vehicle Fitment Notes:
with California Emissions System Gap 0.044in Part # BKR5EGP
with California Emissions System Gap 0.044in Part # BKR5EGP
Spark Plug
$5.95
$6.77
50+ In Stock
Ships: Monday Sep. 29th
Pick-Up: Ready in 1 Hour (Order before 12:00 PM)
Pick-Up: Ready in 1 Hour (Order before 12:00 PM)
Condition: New
Required Per Vehicle: 4
Required Per Vehicle: 4
Made in Japan
Vehicle fitment:
Engine Base: 2.5L 2458cc H4 (3.92x3.11; 99.5x79.0);
Engine Base: 2.5L 2458cc H4 (3.92x3.11; 99.5x79.0);
Vehicle Fitment Notes:
with Federal Emissions System Gap 0.044in Part # BKR6EGP
with Federal Emissions System Gap 0.044in Part # BKR6EGP
Spark Plug
$18.75
10+ In Stock
Ships: Monday Sep. 29th
Pick-Up: Ready in 1 Hour (Order before 12:00 PM)
Pick-Up: Ready in 1 Hour (Order before 12:00 PM)
Condition: New
Required Per Vehicle: 4
Required Per Vehicle: 4
Made in Japan
Vehicle fitment:
Engine Base: 2.5L 2458cc H4 (3.92x3.11; 99.5x79.0);
Engine Base: 2.5L 2458cc H4 (3.92x3.11; 99.5x79.0);
Vehicle Fitment Notes:
with Federal Emissions System Gap 0.044in Part # FR6BHX-S
with Federal Emissions System Gap 0.044in Part # FR6BHX-S
Spark Plug
$18.75
10+ In Stock
Ships: Monday Sep. 29th
Pick-Up: Available Immediately
Pick-Up: Available Immediately
Condition: New
Required Per Vehicle: 4
Required Per Vehicle: 4
Made in Japan
Vehicle fitment:
Engine Base: 2.5L 2458cc H4 (3.92x3.11; 99.5x79.0);
Engine Base: 2.5L 2458cc H4 (3.92x3.11; 99.5x79.0);
Vehicle Fitment Notes:
Gap 0.044in Stock# 96457
Gap 0.044in Stock# 96457
Spark Plug
$18.75
10+ In Stock
Ships: Monday Sep. 29th
Pick-Up: Available Immediately
Pick-Up: Available Immediately
Condition: New
Required Per Vehicle: 4
Required Per Vehicle: 4
Made in Japan
Vehicle fitment:
Engine Base: 2.5L 2458cc H4 (3.92x3.11; 99.5x79.0);
Engine Base: 2.5L 2458cc H4 (3.92x3.11; 99.5x79.0);
Vehicle Fitment Notes:
with California Emissions System Gap 0.044in Part # FR5BHX
with California Emissions System Gap 0.044in Part # FR5BHX
Spark Plug
$3.11
10+ In Stock
Ships: Monday Sep. 29th
Pick-Up: Ready in 1 Hour (Order before 12:00 PM)
Pick-Up: Ready in 1 Hour (Order before 12:00 PM)
Condition: New
Required Per Vehicle: 4
Required Per Vehicle: 4
Vehicle Fitment Notes:
.030"/0.8mm
.030"/0.8mm
Spark Plug
$5.07
10+ In Stock
Ships: Monday Sep. 29th
Pick-Up: Ready in 1 Hour (Order before 12:00 PM)
Pick-Up: Ready in 1 Hour (Order before 12:00 PM)
Condition: New
Required Per Vehicle: 4
Required Per Vehicle: 4
Vehicle Fitment Notes:
.030"/0.8mm
.030"/0.8mm
Spark Plug
$8.48
10+ In Stock
Ships: Same or Next Business Day
Pick-Up: Same Business Day (Order before 12pm)
Pick-Up: Same Business Day (Order before 12pm)
Condition: New
Required Per Vehicle: 4
Required Per Vehicle: 4
Vehicle Fitment Notes:
OE Style .030"/0.8mm
OE Style .030"/0.8mm
Spark Plug
$9.18
10+ In Stock
Ships: Monday Sep. 29th
Pick-Up: Ready in 1 Hour (Order before 12:00 PM)
Pick-Up: Ready in 1 Hour (Order before 12:00 PM)
Condition: New
Required Per Vehicle: 4
Required Per Vehicle: 4
Vehicle Fitment Notes:
Iridium Enhanced Center Electrode. Proprietary V-trimmed Platinum side wire. 0.6mm finewire design. .030"/0.8mm
Iridium Enhanced Center Electrode. Proprietary V-trimmed Platinum side wire. 0.6mm finewire design. .030"/0.8mm
Spark Plug
$11.77
Out of Stock
Condition: New
Required Per Vehicle: 4
Required Per Vehicle: 4
Vehicle Fitment Notes:
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
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
Spark Plug
Call for Pricing
Out of Stock
Condition: New
Required Per Vehicle: 4
Required Per Vehicle: 4
Vehicle Fitment Notes:
Obsolete .030 Gap
Obsolete .030 Gap
Spark Plug
Call for Pricing
Out of Stock
Condition: New
Required Per Vehicle: 4
Required Per Vehicle: 4
Vehicle Fitment Notes:
Iridium Enhanced Center Electrode. Proprietary V-trimmed Platinum side wire. 0.6mm finewire design. .030"/0.8mm
Iridium Enhanced Center Electrode. Proprietary V-trimmed Platinum side wire. 0.6mm finewire design. .030"/0.8mm