stl010
Skip itA concentrated shelf (top 5 take 90% of clicks) — this niche doesn't clear our bar today.
Avg price
Incredible$41.90avg listing price — sweet spot $15–$100
Price range
Incredible$20.20–$77.99cheapest to priciest tracked listing — scored on the share inside $15–$100
Review moat
Great316avg incumbent reviews — the moat a new listing must climb
Growth
Good+27.7%90-day search growth — must beat 0% to launch
Quality gap
Good4.4★avg incumbent rating — lower means beatable quality
Conversion
Okay3.8%search→purchase rate — share of searches ending in a sale
Market size
Okay$215K$215K/yr · 134K searches
Returns
Okay4.1%return rate — above 6% kills the launch gate
Brand share
Bad94%top-5 brand share — brand-locked demand
Competition
Bad90%top-5 click share — a locked-up shelf
Competition
The top 5 products capture 90% of clicks — a locked-up shelf that new listings rarely crack.Brands
7 falling
Sellers
37
Top-5 brand share
94%
Open market
2%
- Pacific Performance Engineering47%
- WIT WHATEVER IT TAKES TRANSMISSION PARTS, INC29%
- Prutomr7%
- Lithops7%
- JINGTAO884%
- YzusGomumu4%
- Open — no brand owns it (1 brand, 2%)
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
Pacific Performance Engineering PPE Automatic Transmission Fluid Thermal Bypass Valve Compatible with 2014-2018 GM Tahoe Silverado Sierra 1500 Escalade Yukon 6L80 5.3L 6.2L 4.3L 125068000 Black
Pacific Performance Engineering$77.994.6★395 rev
WIT WHATEVER IT TAKES TRANSMISSION PARTS INC Superior 6L80 6L90 8L90 Sure Cool System Upgrade STL010 with Bypass Gasket
WIT WHATEVER IT TAKES TRANSMISSION PARTS, INC$46.274.8★533 rev
WIT WHATEVER IT TAKES TRANSMISSION PARTS INC Superior 6L80 6L90 8L90 Sure Cool System Upgrade STL010
WIT WHATEVER IT TAKES TRANSMISSION PARTS, INC$41.374.8★1,505 rev
Premium Aluminum Transmission Fluid Thermal Bypass Valve OE-Fit Design Compatible with 2014-2018 GM 6L80 Trans Fit for Chevrolet Silverado Tahoe GMC Sierra Yukon Cadillac Escalade CT6#125068000
Prutomr$33.304.4★41 rev
Transmission Thermal Bypass Valve for GM 6L80 6 Speed Automatic Heavy Duty Cooling for Towing & Hauling Compatible 20142018 Silverado Sierra 1500 Tahoe Yukon Escalade 5.3L 6.2L 4.3L / 125068000
Lithops$55.073.8★29 rev
Newest
by launch dateTransmission Thermal Bypass Valve for GM 6L80 6 Speed Automatic Heavy Duty Cooling for Towing & Hauling Compatible 20142018 Silverado Sierra 1500 Tahoe Yukon Escalade 5.3L 6.2L 4.3L / 125068000
Lithops$55.0729 rev
CZTNQKT STL010 Cooler Flow Bypass Valve Kit with Bypass Gasket Cooling System Kit Upgrade Compatible With GM 2014-Up 6L80/6L90 Transmission 2016-Up 8L80/8L90/8L90E/10L90 Sure Cool System
CZTNQKT$20.203 rev
Premium Aluminum Transmission Fluid Thermal Bypass Valve OE-Fit Design Compatible with 2014-2018 GM 6L80 Trans Fit for Chevrolet Silverado Tahoe GMC Sierra Yukon Cadillac Escalade CT6#125068000
Prutomr$33.3041 rev
125068000 Automatic Transmission Fluid Thermal Bypass Valve is Designed for 2014-2018 GM 6L80 6 - Speed transmission Compatible with Cadillac Escalade Chevy Tahoe Suburban Silverado 1500
JINGTAO88$33.827 rev
YzusGomumu 6L80 Transmission Fluid Thermal Bypass Valve Compatible with 2014-2018 Chevrolet Tahoe Silverado 1500 GMC Sierra 1500 Cadillac Escalade GMC Yukon 5.3L 6.2L 4.3L Replaces 125068000
YzusGomumu$27.2215 rev
Trending
90-day click momentumTransmission Thermal Bypass Valve for GM 6L80 6 Speed Automatic Heavy Duty Cooling for Towing & Hauling Compatible 20142018 Silverado Sierra 1500 Tahoe Yukon Escalade 5.3L 6.2L 4.3L / 125068000
Lithops$55.073.8★
125068000 Automatic Transmission Fluid Thermal Bypass Valve is Designed for 2014-2018 GM 6L80 6 - Speed transmission Compatible with Cadillac Escalade Chevy Tahoe Suburban Silverado 1500
JINGTAO88$33.824.3★
CZTNQKT STL010 Cooler Flow Bypass Valve Kit with Bypass Gasket Cooling System Kit Upgrade Compatible With GM 2014-Up 6L80/6L90 Transmission 2016-Up 8L80/8L90/8L90E/10L90 Sure Cool System
CZTNQKT$20.205.0★
Premium Aluminum Transmission Fluid Thermal Bypass Valve OE-Fit Design Compatible with 2014-2018 GM 6L80 Trans Fit for Chevrolet Silverado Tahoe GMC Sierra Yukon Cadillac Escalade CT6#125068000
Prutomr$33.304.4★
YzusGomumu 6L80 Transmission Fluid Thermal Bypass Valve Compatible with 2014-2018 Chevrolet Tahoe Silverado 1500 GMC Sierra 1500 Cadillac Escalade GMC Yukon 5.3L 6.2L 4.3L Replaces 125068000
YzusGomumu$27.223.7★
Demand & seasonality
Weekly Amazon search volume, last 104 weeks — +27.7% search growth over the last 90 days.Peak months: May, Jun · busiest ÷ quietest = 2.3×
Reviews
What buyers praise and complain about, mined from review topics.What buyers love
“Easy install”
“Excellent product”
“Fit good”
“Works well”
“Great value”
“Works as advertised”
“Keeps it nice and cool”
“Easy to use”
“Easy to install keeps transmission temperature cool”
“No leaks after installation”
What buyers complain about
“2 days later my transmission went into overheat mode at 255 degrees”
“Not machine correctly”
“Im not sure why they put it is compatible with any 2014-2015 GM vehicles”
“Does not fit correctly”
“Leaks like a sieve”
“This unit not complete for certain years”
“Too expensive”
“This will not repair a trans already going”
“feels like if the OEM valve was restricting flow”
“after a while my transmission started making some noise”