fuel pressure regulator carburetor
Skip itA small market ($62K/yr) — this niche doesn't clear our bar today.
Quality gap
Incredible3.7★avg incumbent rating — lower means beatable quality
Review moat
Great113.36avg incumbent reviews — the moat a new listing must climb
Avg price
Great$65.98avg listing price — sweet spot $15–$100
Price range
Good$28.38–$152.42cheapest to priciest tracked listing — scored on the share inside $15–$100
Returns
Okay3.1%return rate — above 5% kills the launch gate
Growth
Okay+14.3%90-day search growth — must beat 0% to launch
Competition
Okay60%top-5 click share — leaders hold, buyers still browse
Brand share
Okay82%top-5 brand share — brands hold most of the demand
Conversion
Okay2.9%search→purchase rate — share of searches ending in a sale
Market size
Bad$62K$62K/yr · 33K searches
According to Flapen's Amazon United States niche tracking, fuel pressure regulator carburetor is a $62K/yr Amazon United States market (33K searches/yr). The top 5 brands hold 82% of demand. Demand peaks in Apr–May–Jun. Verdict: Skip it — 49/100.
Data updated Jul 10, 2026 · scored weekly · How we score niches
fuel pressure regulator carburetor market data
- Units sold / yr
- 750–1K
- avg 0–100/product
- Revenue / yr
- $49K–$66K
- units × avg price
- Conversion rate
- 2.9%
- Avg BSR
- #269
- Page quality
- 0%
- Prime
- 86%
- Sponsored
- 64%
- Out of stock
- 2.7%
- Avg brand age
- 48 months
- Avg seller age
- 178 days
Competition & brand share
The top 5 products take 60% of clicks — established leaders, but buyers still shop beyond them.Brands
14 flat
Sellers
83
Top-5 brand share
82%
Top 20: 100%
Top-5 click share
60%
Top 20: 98%
Open market
15%
- Holley28%
- FQRANBO23%
- Speedway Motors21%
- LANDSIN5%
- EVIL ENERGY4%
- PQY3%
- Open — no brand owns it (8 brands, 15%)
Demand & seasonality
Weekly Amazon search volume, last 104 weeks — +14.3% search growth over the last 90 days.Peak months: Apr, May, Jun · busiest ÷ quietest = 2.1×
Top fuel pressure regulator carburetor products on Amazon
Each bubble is one product — market share against review moat; bubble size tracks estimated sales, color grades how beatable the incumbent looks.
All 22 tracked products in this niche — three views at once, no toggling.
Top sellers
by 90-day click share
Holley Adjustable Fuel Pressure Regulator & Liquid-Filled Gauge Kit 4.5-9 PSI Range Works with Holley High-Performance Fuel Pumps Includes 0-15 PSI Gauge for Carbureted Engines
Speedway Motors$85.184.1★44 rev
12-803 Adjustable Fuel Pressure Regulator with Gauge Compatible with Holley and Edelbrock Carburetors 4.5-9 PSI 3/8 NPT 1-in 2-Out
FQRANBO$33.833.5★84 rev
Holley 12-840 4.5-9 PSI Adjustable Billet Fuel Pressure Regulator with 3/8 NTP Ports Black Anodized
Holley$136.864.3★38 rev
Holley 12-804 Chrome Carbureted Fuel Pressure Regulator
Holley$49.074.4★516 rev
Holley 12-803BP Carbureted Bypass Fuel Pressure Regulator
Holley$129.484.3★155 rev
Newest
by launch date
12-803 Adjustable Fuel Pressure Regulator Compatible with Holley and Edelbrock Carburetors 4.5-9 PSI 3/8 NPT 1-in 2-Out (12-803)
RoyalAir$28.380 rev
SZQBZMJ 12-804 Fuel Pressure Regulator Carburetor with Gauge Kit Compatible with Holley and Edelbrock Carburetor 1-4 PSI 3/8in NPT Port 1-In 2-Out
SZQBZMJ$32.402 rev
12-803 Adjustable Fuel Pressure Regulator with Gauge Fit for Holley and Edelbrock Carburetors 3/8in NPT 4-1/2-9 Psi
Tavaski$33.884 rev
Fuel Pressure Regulator Kit 12-804 Carburetor Fuel Valve Gauge Fit for Holley Edelbrock Carburetors 1-4 PSI Aluminum Alloy 3/8In NPT Port (1-In 2-Out)
LANDSIN$35.924 rev
KARTONMOTOR Adjustable Fuel Pressure Regulator Carburetor Parts with Fuel Gauge Kit for Holley and Edelbrock Carburetors 4 1/2 to 9 PSI 3/8in NPT 12-803
KARTONMOTOR$34.2811 rev
Trending
90-day click momentum12-803 Adjustable Fuel Pressure Regulator Compatible with Holley and Edelbrock Carburetors 4.5-9 PSI 3/8 NPT 1-in 2-Out (12-803)
RoyalAir$28.380.0★
12-803 Adjustable Fuel Pressure Regulator with Gauge Fit for Holley and Edelbrock Carburetors 3/8in NPT 4-1/2-9 Psi
Tavaski$33.881.3★
12-804 Adjustable Fuel Pressure Regulator with Gauge Compatible with Holley and Edelbrock Carburetors 1-4 PSI 3/8 NPT 1-in 2-Out
FQRANBO$33.323.5★
12-803 Adjustable Fuel Pressure Regulator with Gauge Compatible with Holley and Edelbrock Carburetors 4.5-9 PSI 3/8 NPT 1-in 2-Out
FQRANBO$33.833.5★
SZQBZMJ 12-804 Fuel Pressure Regulator Carburetor with Gauge Kit Compatible with Holley and Edelbrock Carburetor 1-4 PSI 3/8in NPT Port 1-In 2-Out
SZQBZMJ$32.402.9★
What buyers say about fuel pressure regulator carburetor
What buyers praise and complain about, mined from review topics.What buyers love
“Medium quality”
“Worked as expected”
“The pressure regulator aspect is great”
“Looks good and the fuel lines are easy to build”
“It works fine”
“Installed easily with no issues at all”
“No leaks or performance problems so far”
“Its worth the money”
“Easy mounting, good quality, and looks great”
“The adjustment is smooth and precise”
What buyers complain about
“Wont hold a consistent pressure”
“poor quality rubbish”
“It leaks like an open garden hose”
“Non functioning”
“doesnt read what is advertised”
“it fogged the plastic up so bad you cant read the gauge”
“didnt get around to installing it for a while”
“Failed within an hours of use”
“the lack of any instructions could cause problems if you don't know how they work”
“no fitting for gauge”
Top return reasons
Common questions
- Is fuel pressure regulator carburetor profitable to sell on Amazon United States?
- The niche generates $62K/yr across 22 tracked products. 3 of 8 products launched in the last 360 days are still selling. 90-day search growth is +14.3%. Flapen's verdict: Skip it (49/100).
- How competitive is the fuel pressure regulator carburetor niche?
- 14 brands and 83 sellers compete. The top 5 products take 60% of clicks and top 5 brands hold 82% of demand.
- What do buyers complain about in fuel pressure regulator carburetor?
- Top complaints mined from reviews: Pressure, Quality-Overall, Leak-Proof. The return rate is 3.1%.
- When does demand for fuel pressure regulator carburetor peak?
- Demand peaks in Apr–May–Jun; the busiest month runs 2.1× the quietest.
- What does it cost to enter the fuel pressure regulator carburetor niche?
- Listings span $28.38–$152.42; the average listing price is $65.98 (sweet spot $15–$100). The average incumbent carries 113 reviews — the moat a new listing must climb.