differential cover
Skip itWeak search conversion (1.0%) — this niche doesn't clear our bar today.
Review moat
Great167.75avg incumbent reviews — the moat a new listing must climb
Competition
Great29%top-5 click share — an open shelf
Avg price
Great$89.59avg listing price — sweet spot $15–$100
Brand share
Okay76%top-5 brand share — brands hold most of the demand
Quality gap
Okay4.5★avg incumbent rating — lower means beatable quality
Market size
Okay$133K$133K/yr · 145K searches
Price range
Okay$6.70–$301.79cheapest to priciest tracked listing — scored on the share inside $15–$100
Growth
Bad-3.4%90-day search growth — must beat 0% to launch
Returns
Bad6.5%return rate — above 6% kills the launch gate
Conversion
Bad1.0%search→purchase rate — share of searches ending in a sale
Competition
Clicks spread well past the top 5 (29% combined) — an open shelf where new products get seen.Brands
22 flat
Sellers
147
Top-5 brand share
76%
Open market
20%
- A-Premium25%
- Dorman22%
- SPBREW13%
- Spicer9%
- Yukon Gear & Axle7%
- KOONDHEEND4%
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 59 tracked products in this niche — three views at once, no toggling.
Top sellers
by 90-day click share
A-Premium Rear Differential Cover W/Gasket Fit for Chevy GMC & Cadillac Models - Silverado 1500 Sierra Suburban Express Sonoma Tahoe Yukon S10 Blazer Jimmy Escalade 1998-2010 with Magnet & 10 Screws
A-Premium$31.934.5★747 rev
Dorman 697-734 Rear Differential Cover Compatible with Select Ford/Lincoln Models
Dorman$97.884.3★107 rev
SPBREW Rear Differential Cover Compatible for GM 8.5 10-Bolt with 5/16 Bolts Chevy Silverado 1500 Cadillac Escalade with Cooling Fins & Leakproof Gasket for Reliable Performance
SPBREW$125.964.9★21 rev
SPBREW Rear Differential Cover Compatible with Ford 9.75 12-Bolt 1997-2024 F150 with Cooling Fins & Leakproof Gasket for Reliable Performance
SPBREW$125.744.2★22 rev
Spicer 10023539 Differential Cover (Ford 9.75) 1 Pack
Spicer$146.104.6★350 rev
Newest
by launch date
9.75 In Rear Axle Differential Cover Compatible with Ford E-150 F-150 F-250 Transit 150 250 350 for Lincoln Navigator Mark LT Blackwood 1997-2021 Heavy Duty Ductile Iron Diff Cover 697-734
Quarkx$80.102 rev
Roneeson Rear Differential Axle Cover for Ford E-150 Club Wagon Econoline Expedition F-150 Heritage F-250 Transit-150 250 350 Lincoln Blackwood Mark LT Navigator
Roneeson$92.991 rev
maXpeedingrods 697-703 Rear Differential Cover with Gasket & Magnet for Chevrolet Silverado 2500 GMC Sierra 2500 Avalanche 2500 Suburban C/K2500 C/K3500 Express Savana 2500/3500 10.5 Inch 1985-2009
maXpeedingrods$35.524 rev
SPBREW Rear Differential Cover Compatible for GM 8.5 10-Bolt with 5/16 Bolts Chevy Silverado 1500 Cadillac Escalade with Cooling Fins & Leakproof Gasket for Reliable Performance
SPBREW$125.9621 rev
SPBREW Rear Differential Cover Compatible with Ford 9.75 12-Bolt 1997-2024 F150 with Cooling Fins & Leakproof Gasket for Reliable Performance
SPBREW$125.7422 rev
Trending
90-day click momentum9.75 In Rear Axle Differential Cover Compatible with Ford E-150 F-150 F-250 Transit 150 250 350 for Lincoln Navigator Mark LT Blackwood 1997-2021 Heavy Duty Ductile Iron Diff Cover 697-734
Quarkx$80.105.0★
SPBREW Rear Differential Cover Compatible for AAM 11.5 14-Bolt 2001-2019 Chevy/GMC 2003-2018 RAM Dodge Ram with Cooling Fins & Leakproof Gasket for Reliable Performance
SPBREW$147.974.3★
Yukon Gear & Axle (YP C2-GM8.5-R) Polished Aluminum Cover for GM 8.2/8.5/8.6 Rear Differential
Yukon Gear & Axle$51.483.5★
SPBREW Rear Differential Cover Compatible with Ford 9.75 12-Bolt 1997-2024 F150 with Cooling Fins & Leakproof Gasket for Reliable Performance
SPBREW$125.744.2★
maXpeedingrods 697-703 Rear Differential Cover with Gasket & Magnet for Chevrolet Silverado 2500 GMC Sierra 2500 Avalanche 2500 Suburban C/K2500 C/K3500 Express Savana 2500/3500 10.5 Inch 1985-2009
maXpeedingrods$35.525.0★
Demand & seasonality
Weekly Amazon search volume, last 104 weeks — -3.4% search growth over the last 90 days.Peak months: Aug · busiest ÷ quietest = 1.9×
Reviews
What buyers praise and complain about, mined from review topics.What buyers love
“Fit great”
“Build quality and functionality is fantastic”
“Great value”
“They don't leak”
“Not hard to install”
“An accurate description”
“Beautiful piece of art”
“solid construction everything is as it should be”
“works perfect”
“heavy duty”
What buyers complain about
“they were too long”
“leaking”
“Not compatible”
“The screws won't work”
“The cover is at least 5 times heavier than oem”
“Wasnt even the right product for my vehicle, even though Amazon claimed it was”
“it took me about 4-5hrs in my garage to install just because theres really no space in there”
“Quality”
“Save your money”
“Cover and magnet feel very thin and week did not use”