solenoid
Worth a lookShows no brand lock-in (top 5 brands take 37% of clicks), but a failed launch gate (market size, growth, or returns) keeps it on the watch list.
Brand share
Incredible37%top-5 brand share — no brand owns this niche
Competition
Great22%top-5 click share — an open shelf
Avg price
Great$15.36avg listing price — sweet spot $15–$100
Review moat
Great490.09avg incumbent reviews — the moat a new listing must climb
Price range
Great$5.84–$42.04cheapest to priciest tracked listing — scored on the share inside $15–$100
Returns
Good2.4%return rate — above 6% kills the launch gate
Quality gap
Good4.4★avg incumbent rating — lower means beatable quality
Conversion
Good4.0%search→purchase rate — share of searches ending in a sale
Market size
Okay$254K$254K/yr · 411K searches
Growth
Okay+15.5%90-day search growth — must beat 0% to launch
Competition
Clicks spread well past the top 5 (22% combined) — an open shelf where new products get seen.Brands
64 falling
Sellers
180
Top-5 brand share
37%
Open market
59%
- Tecreddy13%
- MaySpare9%
- QINIZX6%
- JDMSPEED5%
- AFEISOL4%
- MOTOKU3%
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 103 tracked products in this niche — three views at once, no toggling.
Top sellers
by 90-day click share
Tecreddy 725-06153A Starter Solenoid for Cub Cadet XT1 XT2 Enduro RZT LT1 ZT1 ZT2 MTD Troy Bilt Yard Man Husky Yard Machines Craftsman Zero Turn Riding Lawn Mower Tractor 762-1261-211-50
Tecreddy$13.964.6★1,603 rev
Upgrade Max 300A Peak Instant Current 12 Volt Solenoid Nickel-Plating for Golf Carts Winch Marine Heavy Duty
MaySpare$17.744.3★312 rev
4Pcs DC 12V Micro Push Pull Solenoid Electromagnet Linear Actuator
QINIZX$15.434.2★42 rev
MaySpare Max Transient 200A Trombetta 12V Solenoid Relay 3 Terminal Heavy Duty Winch Marine 24106 SPST 12 Volt Solenoid
MaySpare$16.744.4★1,056 rev
Tecreddy 117-1197 Starter Solenoid for Toro Timecutter ss5000 z4200 ss4225 ss4235 Exmark Zero Turn Lawn Mower Replace Part #784-1221-210 104-3189 E513075 1-513075 212655 28-4210 47-1910
Tecreddy$13.984.6★1,603 rev
Newest
by launch date
AurLunUs Starter Solenoid Relay for Honda TRX90 TRX200 TRX300 TRX350 TRX400 TRX420 TRX450TRX500 TRX520 TRX650 TRX680 Rancher FourTrax Foreman ATV 35850-HM7-000
AurLunUs$7.960 rev
CCNU Starter Solenoid Relay for Kawasaki Bayou 220 KLF220 1988-2002 Bayou 250 KLF250 2003-2010 KLX650 VN800 Vulcan 800 1996-2005 Honda VT750C Shadow Suzuki GSXR750 ATV Starter Relays Replacement
CCNU$9.692 rev
Ypoyney Starter Solenoid Relay Relay Harness Plug Accessories Replace 35850-HM7-000 Compatible with HNDA TRX90 TRX200 TRX300 TRX350 TRX400 TRX420 TRX450 TRX500 TRX650 TRX680 Fourtrax Foreman Rancher
Ypoyney$7.941 rev
KoiLuvGo 30A Motorcycle Starter Solenoid Starter Solenoid Relay Compatible with Most Yamaha ATV YFM 350 400 450 660 - Raptor Grizzly Kodiak Wolverine Big Bear
KoiLuvGo$9.1612 rev
KoiLuvGo Starter Solenoid Relay for for Honda TRX90 TRX200 TRX300 TRX350 TRX400 TRX420 TRX450 TRX500 TRX520 TRX650 TRX680 Rancher FourTrax Foreman ATV 35850-HM7-000 Relay Harness Plug Accessories
KoiLuvGo$7.483 rev
Trending
90-day click momentumYpoyney Starter Solenoid Relay Relay Harness Plug Accessories Replace 35850-HM7-000 Compatible with HNDA TRX90 TRX200 TRX300 TRX350 TRX400 TRX420 TRX450 TRX500 TRX650 TRX680 Fourtrax Foreman Rancher
Ypoyney$7.944.0★
CCNU Starter Solenoid Relay for Kawasaki Bayou 220 KLF220 1988-2002 Bayou 250 KLF250 2003-2010 KLX650 VN800 Vulcan 800 1996-2005 Honda VT750C Shadow Suzuki GSXR750 ATV Starter Relays Replacement
CCNU$9.692.5★
AurLunUs Starter Solenoid Relay for Honda TRX90 TRX200 TRX300 TRX350 TRX400 TRX420 TRX450TRX500 TRX520 TRX650 TRX680 Rancher FourTrax Foreman ATV 35850-HM7-000
AurLunUs$7.960.0★
Fourtry Starter Solenoid Fit for Craftsman Lawn Tractor - Solenoid Fit for AYP Husqvarna Poulan Craftsman LT2000 YS4500 917288701 Mower Solenoid 12V Replaces 192507 146154 178861 532192507
Fourtry$11.194.6★
Tecreddy Starter Solenoid 12V for Bad Boy 108-5349-00 ZT CZT MZ Zero Turn Riding Lawn Mower Tractor
Tecreddy$13.764.6★
Demand & seasonality
Weekly Amazon search volume, last 104 weeks — +15.5% search growth over the last 90 days.No pronounced peak months · busiest ÷ quietest = 1.3×
Reviews
What buyers praise and complain about, mined from review topics.What buyers love
“The fitment was accurate”
“Great Value”
“Works as promised”
“Build quality feels solid”
“worked as expected”
“no problem during installation”
“Easy to use”
“Works well as a replacement part”
“It has never failed to work”
“The housing is durable”
What buyers complain about
“Failed after a month”
“Junk disguised in quality box”
“Does not work correctly”
“Part is cheap did not work at all”
“I re-ordered one Amazon says doesn't fit my car”
“Pictures do not really show or the description”
“Inaccurate compatibility”
“no hardware comes with it”
“Not worth it”
“Installing was a bit rough”