---
title: "sp594 motorcraft spark plugs — Niche Verdict: Skip it (34/100) | Amazon United States - Flapen"
canonical_url: "https://flapen.com/amazon/research/us/automotive/sp594-motorcraft-spark-plugs"
last_updated: "2026-07-14T00:25:59.264Z"
locale: en
meta:
  description: "a small market ($7K/yr) — sp594 motorcraft spark plugs doesn't clear our bar today."
  "og:description": "a small market ($7K/yr) — sp594 motorcraft spark plugs doesn't clear our bar today."
  "og:title": "sp594 motorcraft spark plugs — Niche Verdict: Skip it (34/100) | Amazon United States - Flapen"
---

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# **sp594 motorcraft spark plugs**

**Skip it**

A small market ($7K/yr) — this niche doesn't clear our bar today.

Market size 2Growth 57Conversion 22Competition 8Returns 46Price range 77Avg price 95Brand share 8Review moat 96Quality gap 35

**Review moat**

**Incredible****86.75**

avg incumbent reviews — the moat a new listing must climb

**Avg price**

**Incredible****$38.27**

avg listing price — sweet spot $15–$100

**Price range**

**Great****$7.19–$116.89**

cheapest 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**

**Okay****3.5%**

return rate — above 6% kills the launch gate

**Quality gap**

**Okay****4.5★**

avg incumbent rating — lower means beatable quality

**Conversion**

**Bad****1.7%**

search→purchase rate — share of searches ending in a sale

**Competition**

**Bad****91%**

top-5 click share — a locked-up shelf

**Brand share**

**Bad****97%**

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.

0%15%$1K30%$2K45%$3K60%$4K1101001K Reviews — right = deep review moatMarket share (90d) ≈ est. sales

Beatable (≤4.3★) Contested Strong incumbent (>4.7★)

All 8 tracked products in this niche — three views at once, no toggling.

### **Top sellers**

by 90-day click share

[1![OverstockDirect Genuine OEM SP594 Iridium Spark Plugs (6 pack) CYFS12YRT3](https://m.media-amazon.com/images/I/41dwcZUuoBL.jpg)**OverstockDirect Genuine OEM SP594 Iridium Spark Plugs (6 pack) CYFS12YRT3**Ford**$63.50**4.6★292 rev](https://www.amazon.com/dp/B084T7SFG3) [2![Motorcraft Spark Plug - SP594](https://m.media-amazon.com/images/I/41HHZg4IRML.jpg)**Motorcraft Spark Plug - SP594**Motorcraft**$12.37**4.7★68 rev](https://www.amazon.com/dp/B09TR8D9LY) [3![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](https://m.media-amazon.com/images/I/41hGXvWxm6L.jpg)**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**$28.82**3.4★8 rev](https://www.amazon.com/dp/B0F2RXNTVL) [4![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](https://m.media-amazon.com/images/I/41hVKZdriaL.jpg)**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**$25.62**4.1★6 rev](https://www.amazon.com/dp/B0F2FH4262) [5![OverstockDirect Genuine OEM SP520 / SP520X s/s to SP589 Platinum Spark Plugs CYFS12YT6 (6 pack)](https://m.media-amazon.com/images/I/51AHYu6-vRL.jpg)**OverstockDirect Genuine OEM SP520 / SP520X s/s to SP589 Platinum Spark Plugs CYFS12YT6 (6 pack)**OVERSTOCKDIRECT**$37.70**4.7★306 rev](https://www.amazon.com/dp/B086Z13GBY)

**~~View all top sellers →~~**

### **Newest**

by launch date

[![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](https://m.media-amazon.com/images/I/41hGXvWxm6L.jpg)**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**$28.82**8 rev1y ago](https://www.amazon.com/dp/B0F2RXNTVL) [![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](https://m.media-amazon.com/images/I/41hVKZdriaL.jpg)**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**$25.62**6 rev1y ago](https://www.amazon.com/dp/B0F2FH4262) [![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](https://m.media-amazon.com/images/I/41wayh34k+L.jpg)**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**$116.89**4 rev2y ago](https://www.amazon.com/dp/B0D3JCJJ3Z) [![Motorcraft Spark Plug - SP594](https://m.media-amazon.com/images/I/41HHZg4IRML.jpg)**Motorcraft Spark Plug - SP594**Motorcraft**$12.37**68 rev4y ago](https://www.amazon.com/dp/B09TR8D9LY) [![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)](https://m.media-amazon.com/images/I/41Sgr0qNt8L.jpg)**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**$14.07**6 rev5y ago](https://www.amazon.com/dp/B08QW796KK)

**~~View all new products →~~**

### **Trending**

90-day click momentum

[![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)](https://m.media-amazon.com/images/I/41Sgr0qNt8L.jpg)**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**$14.07**5.0★**▲ 99%**](https://www.amazon.com/dp/B08QW796KK) [![Motorcraft SPARK PLUG](https://m.media-amazon.com/images/I/31bz92kjP8L.jpg)**Motorcraft SPARK PLUG**Motorcraft**$7.19**4.8★**▲ 89%**](https://www.amazon.com/dp/B07TN3Y8VM) [![OverstockDirect Genuine OEM SP520 / SP520X s/s to SP589 Platinum Spark Plugs CYFS12YT6 (6 pack)](https://m.media-amazon.com/images/I/51AHYu6-vRL.jpg)**OverstockDirect Genuine OEM SP520 / SP520X s/s to SP589 Platinum Spark Plugs CYFS12YT6 (6 pack)**OVERSTOCKDIRECT**$37.70**4.7★**▲ 82%**](https://www.amazon.com/dp/B086Z13GBY) [![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](https://m.media-amazon.com/images/I/41wayh34k+L.jpg)**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**$116.89**5.0★**▲ 70%**](https://www.amazon.com/dp/B0D3JCJJ3Z) [![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](https://m.media-amazon.com/images/I/41hGXvWxm6L.jpg)**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**$28.82**3.4★**▲ 33%**](https://www.amazon.com/dp/B0F2RXNTVL)

**~~View all trending →~~**

## **Demand**

Weekly Amazon search volume, last 10 weeks — +31.1% search growth over the last 90 days.

300200May '26May '26May '26May '26May '26Jun '26Jun '26Jun '26Jun '26Jul '26

## **Reviews**

What buyers praise and complain about, mined from review topics.

### **What buyers love **

**Size-Overall**29%

*“Fit well”*

**Value For Money**19%

*“Great deal”*

**Advertised Vs Actual Product**15%

*“As Advertised”*

**Assembly/Installation**11%

*“which in turn made it easier to install”*

**Efficiency**5%

*“Work perfectly”*

**Socket/Port/Plug**5%

*“Excellent OEM plug”*

**Correct Contents**5%

*“Good Parts”*

**Motor Power**4%

*“engine runs well”*

**Quality-Overall**4%

*“Better performance and power”*

**Maintenance And Repair**2%

*“easy preventative maintenance item to do”*

### **What buyers complain about **

**Defective Material/Parts**14%

*“Had to bring to dealership for repairs”*

**Size-Overall**14%

*“Too long”*

**Advertised Vs Actual Product**14%

*“Not as Described”*

**Socket/Port/Plug**14%

*“Received used spark plugs”*

**Product Condition**14%

*“used and broken”*

**Flammable**7%

*“Every diode was smoked”*

**Fuel Efficiency**7%

*“would shudder when you got on the gas”*

**Durability**7%

*“They didnt last long at all”*

### **Top return reasons **

**Product Condition**18%

**Size-Overall**18%

**Compatibility-Overall**17%

**Defective Material/Parts**12%

**Advertised Vs Actual Product**10%

**Functionality-Overall**7%

**Socket/Port/Plug**5%

**Quality-Overall**3%

**Value For Money**3%

**Rusts/Corrodes**2%