ls rear main seal alignment tool
Skip itA small market ($65K/yr) — this niche doesn't clear our bar today.
Avg price
Incredible$25.97avg listing price — sweet spot $15–$100
Conversion
Great11.8%search→purchase rate — share of searches ending in a sale
Price range
Great$14.08–$59.18cheapest to priciest tracked listing — scored on the share inside $15–$100
Review moat
Great207.7avg incumbent reviews — the moat a new listing must climb
Returns
Okay3.4%return rate — above 6% kills the launch gate
Brand share
Okay86%top-5 brand share — brands hold most of the demand
Quality gap
Okay4.6★avg incumbent rating — lower means beatable quality
Growth
Bad-9.8%90-day search growth — must beat 0% to launch
Market size
Bad$65K$65K/yr · 21K searches
Competition
Bad81%top-5 click share — a locked-up shelf
Competition
The top 5 products capture 81% of clicks — a locked-up shelf that new listings rarely crack.Brands
9 flat
Sellers
31
Top-5 brand share
86%
Open market
10%
- Bonbo52%
- Moker10%
- HNeekyr10%
- ELONN9%
- KOHUIPU5%
- BILLFARO4%
- Open — no brand owns it (3 brands, 10%)
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 10 tracked products in this niche — three views at once, no toggling.
Top sellers
by 90-day click share
Bonbo Front and Rear Cover Billet Alignment Tool & Oil Pan Alignment Tool Fits for LS Series Engines 4.8 5.3 5.7 6.0 LS1 LS2 LS3 LS6 L99 LS9 LSA LQ4
Bonbo$25.454.7★923 rev
Moker LS Rear Main Seal Alignment Tool Front Cover Alignment Tools & Oil Pan Front Cover Alignment Tool Kit for GM LS Engine 4.8 5.3 5.7 6.0 LS1 LS2 LS3 LS6 L99 LS4 LS9 LSA LQ4 LQ9 L76 L92
Moker$25.604.6★351 rev
HNeekyr LS Rear Main Cover Alignment Tool & Seal Installer Compatible with GM Gen III IV LS Series Engines 4.8 5.3 6.0L LS1 LS2 LS3 LS6 LS7 LS9 LQ4 Rear Seal Alignment Tool
HNeekyr$14.534.4★74 rev
LS Rear Main Seal Alignment Tool for GM Gen III & IV Engines 4.8 5.3 5.7 6.0 6.2 7.0 LS1 LS2 LS3 LS6 L99 LS4 LS9 LSA LQ4 LQ9 L76 L92
ELONN$15.174.6★277 rev
Bonbo for LS Rear Main Cover Alignment Tool & Seal Installer Perfectly Fits for GM Gen III IV LS Series Engines 4.8 5.3 5.7 6.0 LS1 LS2 LS3 LS6 LS7 L99 LS9 LSA LQ4 LQ9
Bonbo$14.085.0★15 rev
Newest
by launch date
BILLFARO LS Timing Cover Alignment Tool Billet Aluminum Front Rear Cover Alignment Tool Seal Installer Seal Kit for LS Series Engines Ls1 Ls2 Ls3 Ls6 Ls Lq4 Lq9 4.8 5.3 5.7 6.0 6.2 (Red)
BILLFARO$19.89121 rev
HNeekyr LS Rear Main Cover Alignment Tool & Seal Installer Compatible with GM Gen III IV LS Series Engines 4.8 5.3 6.0L LS1 LS2 LS3 LS6 LS7 LS9 LQ4 Rear Seal Alignment Tool
HNeekyr$14.5374 rev
Bonbo for LS Rear Main Cover Alignment Tool & Seal Installer Perfectly Fits for GM Gen III IV LS Series Engines 4.8 5.3 5.7 6.0 LS1 LS2 LS3 LS6 LS7 L99 LS9 LSA LQ4 LQ9
Bonbo$14.0815 rev
Mejiao Front and Rear Cover Alignment Tool & Oil Pan Alignment Tool Kit Fits for GM LS Series Engines 4.8 5.3 5.7 6.0 6.2 LS1/ LS2/ LS3/ LS4/ LS6/ L99/ LS9/ LSA/ LQ4/ LQ9/ L76/ L92
Mejiao$23.9264 rev
URLWALL LS Timing Cover Alignment Tools & Seal Installer Seal Kit Front Rear Cover Alignment Tool Kit Fit for LS Series Engines Ls1 Ls2 Ls3 Ls6 Ls Lq4 Lq9 4.8 5.3 5.7 6.0 6.2 (Red)
URLWALL$19.88119 rev
Trending
90-day click momentumBonbo for LS Rear Main Cover Alignment Tool & Seal Installer Perfectly Fits for GM Gen III IV LS Series Engines 4.8 5.3 5.7 6.0 LS1 LS2 LS3 LS6 LS7 L99 LS9 LSA LQ4 LQ9
Bonbo$14.085.0★
LS Timing & Rear Main Cover Alignment Tools & Seal Installer Fit For GM Gen III & IV Engines 4.8L 5.3L 6.0L 6.2L LS1 LS2 LS3 LS6 LS7 LS9 LQ4 LQ9
KOHUIPU$42.024.2★
HNeekyr LS Rear Main Cover Alignment Tool & Seal Installer Compatible with GM Gen III IV LS Series Engines 4.8 5.3 6.0L LS1 LS2 LS3 LS6 LS7 LS9 LQ4 Rear Seal Alignment Tool
HNeekyr$14.534.4★
URLWALL LS Timing Cover Alignment Tools & Seal Installer Seal Kit Front Rear Cover Alignment Tool Kit Fit for LS Series Engines Ls1 Ls2 Ls3 Ls6 Ls Lq4 Lq9 4.8 5.3 5.7 6.0 6.2 (Red)
URLWALL$19.884.6★
Mejiao Front and Rear Cover Alignment Tool & Oil Pan Alignment Tool Kit Fits for GM LS Series Engines 4.8 5.3 5.7 6.0 6.2 LS1/ LS2/ LS3/ LS4/ LS6/ L99/ LS9/ LSA/ LQ4/ LQ9/ L76/ L92
Mejiao$23.924.7★
Demand
Weekly Amazon search volume, last 18 weeks — -9.8% search growth over the last 90 days.Reviews
What buyers praise and complain about, mined from review topics.What buyers love
“Well made kit”
“a perfect fit”
“Works perfectly”
“Easy to use”
“Great tool great price”
“Worked great no leaks”
“Fixed it”
“It made installing the rear main seal much easier”
“This tool worked as expected”
“Great tolerance works as expected”
What buyers complain about
“Wont fit over the crank in my LS6 without binding up”
“Misleading”
“NOT NEW”
“Leaks”
“Waste of money”
“does not fit ls1 5.7”
“For the price I paid it should have came with mounting screws”