Is sp594 motorcraft spark plugs profitable to sell on Amazon United States?

The niche generates $7K/yr across 8 tracked products. 90-day search growth is +31.1%. Flapen's verdict: Skip it (34/100).

How competitive is the sp594 motorcraft spark plugs niche?

6 brands and 24 sellers compete. The top 5 products take 91% of clicks and top 5 brands hold 97% of demand.

What do buyers complain about in sp594 motorcraft spark plugs?

Top complaints mined from reviews: Defective Material/Parts, Size-Overall, Advertised Vs Actual Product. The return rate is 3.5%.

What does it cost to enter the sp594 motorcraft spark plugs niche?

Listings span $7.19–$116.89; the average listing price is $38.27 (sweet spot $15–$100). The average incumbent carries 87 reviews — the moat a new listing must climb.

sp594 motorcraft spark plugs

Skip it

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

Review moat

Incredible86.75

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

Okay3.5%

return rate — above 5% 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

Signals Low Review Barrier

According to Flapen's Amazon United States niche tracking, sp594 motorcraft spark plugs is a $7K/yr Amazon United States market (10K searches/yr). The top 5 brands hold 97% of demand. Verdict: Skip it — 34/100.

Data updated Jul 11, 2026 · scored weekly · How we score niches

sp594 motorcraft spark plugs market data

Units sold / yr: 1K–1K; avg 250–500/product
Revenue / yr: $38K–$48K; units × avg price
Conversion rate: 1.7%
Avg BSR: #2,206
Page quality: 0%
Prime: 88%
Sponsored: 38%
Out of stock: 0.0%
Avg brand age: 61 months
Avg seller age: 178 days

Competition & brand share

The top 5 products capture 91% of clicks — a locked-up shelf that new listings rarely crack.

Brands

6 rising

Sellers

Top-5 brand share

97%

Top 20: 100%

Top-5 click share

91%

Top 20: 100%

Open market

Ford46%
Motorcraft27%
GPMMWPG9%
STZJAYE8%
OVERSTOCKDIRECT7%
ENA3%

Demand

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

Open Trend

Top sp594 motorcraft spark plugs search terms

sp594 motorcraft spark plugs4K/yr +36.3%4.8% conv.
motorcraft sp5943K/yr +27.3%4.1% conv.
sp5943K/yr +28.1%5.2% conv.

All search terms

Top sp594 motorcraft spark plugs products on Amazon

Each bubble is one product — market share against review moat; bubble size tracks estimated sales, color grades how beatable the incumbent looks.

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

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 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

GPMMWPG$28.828 rev

1y ago

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

1y ago

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

2y ago

Motorcraft Spark Plug - SP594

Motorcraft$12.3768 rev

4y ago

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

5y ago

What buyers say about sp594 motorcraft spark plugs

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

What buyers love

Size-Overall29%

“Fit well”

Value For Money19%

“Great deal”

Advertised Vs Actual Product15%

“As Advertised”

Assembly/Installation11%

“which in turn made it easier to install”

Efficiency5%

“Work perfectly”

Socket/Port/Plug5%

“Excellent OEM plug”

Correct Contents5%

“Good Parts”

Motor Power4%

“engine runs well”

Quality-Overall4%

“Better performance and power”

Maintenance And Repair2%

“easy preventative maintenance item to do”

What buyers complain about

Defective Material/Parts14%

“Had to bring to dealership for repairs”

Size-Overall14%

“Too long”

Advertised Vs Actual Product14%

“Not as Described”

Socket/Port/Plug14%

“Received used spark plugs”

Product Condition14%

“used and broken”

Flammable7%

“Every diode was smoked”

Fuel Efficiency7%

“would shudder when you got on the gas”

Durability7%

“They didnt last long at all”

Top return reasons

Product Condition18%

Size-Overall18%

Compatibility-Overall17%

Defective Material/Parts12%

Advertised Vs Actual Product10%

Functionality-Overall7%