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6.7 powerstroke

Worth a look61/100

6.7 powerstroke shows demand growing +356.4%, but a concentrated shelf (top 5 take 97% of clicks) keeps it on the watch list.

Market/yr

$4.5M

Growth (1y)

+356.4%

Products

6

Brands

5

was 5 a year ago

Sellers

12

Price range

$56.23–$2342.09

Returns

1.8%

Rating

4.1★

61/100

Worth a look

Scored 61/100 across market size, growth, competition, quality gap, and returns.

Market sizeGrowthCompetitionQuality gapReturns
Market size
61
×0.30
Growth
89
×0.30
Competition
0
×0.20
Quality gap
75
×0.10
Returns
86
×0.10

Demand

Weekly Amazon search volume, last 24 weeks — +356.4% year over year.
4K2KSpike '26Jan '26Feb '26Mar '26Apr '26May '26Jun '26

Competition

69%S&S Diesel Motorsport
  • S&S Diesel Motorsport69%
  • SPELAB13%
  • QHHR10%
  • Foruly5%
  • SPBREW3%
  • Other0%

The top 5 products capture 97% of clicks — a locked-up shelf that new listings rarely crack. 5 brands and 12 sellers compete here.

Brands

5 flat

was 5 a year ago

Sellers

12

Top 5 brand share

100%

Product shelf

All 6 tracked products in this niche.

Reviews

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

What buyers love

Assembly/Installation29%

“install wasnt too bad”

Quality-Overall12%

“Excellent product”

Instructions/User Manual/Troubleshooting9%

“Directions are thorough and clear”

Size-Overall8%

“Good fit”

Value For Money7%

“Great value”

Advertised Vs Actual Product4%

“Works as advertised”

Efficiency3%

“works great”

Correct Contents3%

“This is a complete kit”

Fuel Efficiency3%

“works great for fuel efficiency”

Durability3%

“the reinforced fuel lines appear very durable”

What buyers complain about

Leak-Proof15%

“Feels cheap - leaking within 6 months”

Quality-Overall13%

“Cheap”

Pressure13%

“The only thing I could find was desired rail pressure was higher than desired in these cases”

Fuel Efficiency10%

“fuel line will degrade when exposed to diesel”

Assembly/Installation9%

“Trust me, I did and ended up having to go through the whole process of the installation twice”

Value For Money5%

“Cheap”

Hard Feel5%

“Kit was a little hard”

Maintenance And Repair4%

“it left us with a $16,000 repair bill”

Ease Of Use3%

“its not exactly for the entry level handy man work”

Filtration3%

“Janky fuel filter kit”

Top return reasons

  • Assembly/Installation20%
  • Defective Material/Parts14%
  • Compatibility-Overall10%
  • Value For Money9%
  • Advertised Vs Actual Product7%
  • Product Condition7%
  • Quality-Overall6%
  • Size-Overall5%
  • Functionality-Overall4%
  • Fuel Efficiency3%

Data scraped July 9, 2026 · Marketplace baseline: 4.4★ avg rating · $22.74 median price · 2.3% median returns across 14,634 tracked niches.