sp594 motorcraft spark plugs
Skip itA small market ($7K/yr) — this niche doesn't clear our bar today.
Review moat
Incredible86.75avg incumbent reviews — the moat a new listing must climb
Avg price
Incredible$38.27avg listing price — sweet spot $15–$100
Price range
Great$7.19–$116.89cheapest to priciest tracked listing — scored on the share inside $15–$100
Growth
Good+31.1%90-day search growth — must beat 0% to launch
Returns
Okay3.5%return rate — above 6% kills the launch gate
Quality gap
Okay4.5★avg incumbent rating — lower means beatable quality
Conversion
Bad1.7%search→purchase rate — share of searches ending in a sale
Competition
Bad91%top-5 click share — a locked-up shelf
Brand share
Bad97%top-5 brand share — brand-locked demand
Market size
Bad$7K$7K/yr · 10K searches
Competition
The top 5 products capture 91% of clicks — a locked-up shelf that new listings rarely crack.Brands
6 rising
Sellers
24
Top-5 brand share
97%
Open market
0%
- Ford46%
- Motorcraft27%
- GPMMWPG9%
- STZJAYE8%
- OVERSTOCKDIRECT7%
- ENA3%
Product shelf
Each bubble is one product — market share against review moat; bubble size tracks estimated sales, color grades how beatable the incumbent looks.
All 8 tracked products in this niche — three views at once, no toggling.
Top sellers
by 90-day click share
OverstockDirect Genuine OEM SP594 Iridium Spark Plugs (6 pack) CYFS12YRT3
Ford$63.504.6★292 rev
Motorcraft Spark Plug - SP594
Motorcraft$12.374.7★68 rev
GPMMWPG Iridium Spark Plug SP594 CYFS12YRT3 Compatible with Ford F150 Edge 2.7L V6 2015-2024 for Explorer Escape 2L 2.3L 2019-2023 for Lincoln Navigator 3.5L V6 2018-2021 6 Pack
GPMMWPG$28.823.4★8 rev
STZJAYE Iridium Spark Plugs 6 Pack SP594 CYFS12YRT3 Compatible with Ford for Expedition 18-21 for Escape 19-23 for Explorer 2019-2025 for F150 2015-2024 for Ranger 2019-2025 for Edge 2015-2024
STZJAYE$25.624.1★6 rev
OverstockDirect Genuine OEM SP520 / SP520X s/s to SP589 Platinum Spark Plugs CYFS12YT6 (6 pack)
OVERSTOCKDIRECT$37.704.7★306 rev
Newest
by launch dateGPMMWPG Iridium Spark Plug SP594 CYFS12YRT3 Compatible with Ford F150 Edge 2.7L V6 2015-2024 for Explorer Escape 2L 2.3L 2019-2023 for Lincoln Navigator 3.5L V6 2018-2021 6 Pack
GPMMWPG$28.828 rev
STZJAYE Iridium Spark Plugs 6 Pack SP594 CYFS12YRT3 Compatible with Ford for Expedition 18-21 for Escape 19-23 for Explorer 2019-2025 for F150 2015-2024 for Ranger 2019-2025 for Edge 2015-2024
STZJAYE$25.626 rev
ENA Ignition Coil Pack and Iridium Spark Plugs Compatible with Ford Lincoln F150 F-150 Edge MKX Continental MKZ 2.7L 3.0L V6 15 2016 2017 2018 2019 2020 Replacement for UF773 SP594 Set of 6
ENA$116.894 rev
Motorcraft Spark Plug - SP594
Motorcraft$12.3768 rev
OverstockDirect Genuine OEM SP594 CYFS12YRT3 Iridium Spark Plug superseded from SP578 Compatible with Select Ford Bronco/Explorer/F-150/Ranger & Lincoln Aviator/MKT/MKZ/Nautilus Models (1 Pack)
OVERSTOCKDIRECT$14.076 rev
Trending
90-day click momentumOverstockDirect Genuine OEM SP594 CYFS12YRT3 Iridium Spark Plug superseded from SP578 Compatible with Select Ford Bronco/Explorer/F-150/Ranger & Lincoln Aviator/MKT/MKZ/Nautilus Models (1 Pack)
OVERSTOCKDIRECT$14.075.0★
Motorcraft SPARK PLUG
Motorcraft$7.194.8★
OverstockDirect Genuine OEM SP520 / SP520X s/s to SP589 Platinum Spark Plugs CYFS12YT6 (6 pack)
OVERSTOCKDIRECT$37.704.7★
ENA Ignition Coil Pack and Iridium Spark Plugs Compatible with Ford Lincoln F150 F-150 Edge MKX Continental MKZ 2.7L 3.0L V6 15 2016 2017 2018 2019 2020 Replacement for UF773 SP594 Set of 6
ENA$116.895.0★
GPMMWPG Iridium Spark Plug SP594 CYFS12YRT3 Compatible with Ford F150 Edge 2.7L V6 2015-2024 for Explorer Escape 2L 2.3L 2019-2023 for Lincoln Navigator 3.5L V6 2018-2021 6 Pack
GPMMWPG$28.823.4★
Demand
Weekly Amazon search volume, last 10 weeks — +31.1% search growth over the last 90 days.Reviews
What buyers praise and complain about, mined from review topics.What buyers love
“Fit well”
“Great deal”
“As Advertised”
“which in turn made it easier to install”
“Work perfectly”
“Excellent OEM plug”
“Good Parts”
“engine runs well”
“Better performance and power”
“easy preventative maintenance item to do”
What buyers complain about
“Had to bring to dealership for repairs”
“Too long”
“Not as Described”
“Received used spark plugs”
“used and broken”
“Every diode was smoked”
“would shudder when you got on the gas”
“They didnt last long at all”