Best-selling fuel injection cleaner on Amazon US
September 2026Ranked within Fuel Injection Systems Cleaners, the category that takes 60.6% of what listings matching “fuel injection cleaner” earn; matching listings in other categories (Fuel System Cleaners, Carburetor & Throttle Body Cleaners) are left out.
In September 2026, the 11 best-selling Amazon US listings matching “fuel injection cleaner” moved 430 units for about $82,136 in revenue, up 5.9% month over month.
The top 10 listings account for 100.0% of those units and 100.0% of revenue — a concentrated shelf. The median listing sells at $129.99.
Top 10 best sellers
The No. 1 listing is B0CGN1QCP2 from KAISAL: 229 units at $47.99, or 53.3% of all units tracked. It outsold No. 2 by 4.2×, a clear runaway.
| # | Product | Price | Rating | Sold / mo | MoM | Share |
|---|---|---|---|---|---|---|
| 1 |  Fuel Injector Cleaner Tool Kit 1000ML 150PSI Disassembly-Free Fuel Injection System Cleaner Pressure Adjustment Fuel Injector Cleaning Machine with 20PC Adapter for Gasoline Car Throttle/Intake System
B0CGN1QCP2 · KAISAL |
$47.99 | ★ 4.3 266 |
229 | ▲ 6.0% | 53.3% |
| 2 |  AUTOOL Ultrasonic Wave Fuel Injector Cleaner and Tester Automotive Fuel Injection Systems Cleaning Tools for All Petrol 6 Cylinder Vehicles Motorcycle
B07NY92TKY · AUTOOL |
$429.00 | ★ 4.0 61 |
54 | ▲ 22.7% | 12.6% |
| 3 |  Fuel Injector Cleaner and Tester Machine, 6 Cylinder Fuel System Injection Cleaning Tester with 9 Types Adapter, 3 Cleaning & 12 Testing Functions for GDl,EFI,FSI, 0-40ms Pulse Settings, 0.1ms Step
B0C9MGXWJ9 · LUTIFIXNEW |
$689.99 | ★ 4.0 1 |
51 | – | 11.9% |
| 4 |  FIRSTINFO 4-in-1 Fuel Injection & Intake Valve Cleaner, Vacuum Tester Kit
B00YF7PBLW · FIRSTINFO TOOLS FIT YOUR NEEDS |
$67.80 | ★ 4.4 95 |
26 | ▼ 16.1% | 6.0% |
| 5 |  Fuel Injector Cleaner Tester Kit Ultrasonic Injector Cleaner Machine 9 Test Modes Fuel Injector Tester Cleaner 4 Cylinder Fuel System Injection Cleaning Tool Kit for 5V & 12V Motorcycle Car Injectors
B0DD39GQG9 · KAISAL |
$238.99 | ★ 4.1 49 |
25 | ▲ 47.1% | 5.8% |
| 6 |  1000ML 150psi Fuel Injector Cleaner Kit Fuel System Cleaner Kit Non-dismantle Fuel Injector Cleaner Tester Fuel Injection Cleaning Auto Gasoline
B0DKHDN9PT · Bicos |
$69.99 | ★ 3.8 13 |
17 | ▼ 19.0% | 4.0% |
| 7 |  Common Rail Injector Tester Diesel CR Fuel Injector Cleaner Kit Common Rail piezoelectric Injector Testers Car Accessories Fuel Injector Tester with New Injection Count Setting Function
B0DR5LXLSF · Kawish |
$129.99 | ★ 4.1 6 |
11 | ▼ 42.1% | 2.6% |
| 8 |  X AUTOHAUX Fuel Injection Systems Cleaning Tools Car Fuel System Cleaner Kit for Petrol EFI Throttle Car Engine Non-Dismantle Cleaner Machine Fuel Injector Cleaner 600ML 140PSI C80
B09KNNSDFH · X AUTOHAUX |
$46.49 | ★ 4.2 114 |
7 | ▼ 56.2% | 1.6% |
| 9 |  S.U.R.& R.Auto Parts SUR&R FIC203 Fuel Injection Cleaner Kit,10 Pieces
B0025Z7ZR4 · S.U.R. and R Auto PartsNEW |
$334.34 | ★ 4.4 23 |
5 | – | 1.2% |
| 10 |  C100 Fuel Injector Cleaner Kit,Non-dismantle Fuel Injector Cleaner Machine,1000ML 150PSI Fuel Injection Systems Cleaning Tools with Various Adapters and Packing Box for Gasoline Injectors
B0FB2DXCCN · LINXINO |
$79.99 | ★ 4.0 7 |
5 | ▼ 75.0% | 1.2% |
Brands that sell the most
KAISAL leads the top 10 with 254 units across 2 listings (59.1% of top-10 volume). AUTOOL (12.6%) and LUTIFIX (11.9%) follow.
9 brands share the top 10; the leading three hold 83.5%, so a few names dominate. Top-10 prices range from $46.49 to $689.99.
KAISAL
- Share
- 59.1%
- Units
- 254
- Avg. price
- $66.79
AUTOOL
- Share
- 12.6%
- Units
- 54
- Avg. price
- $429.00
LUTIFIX
- Share
- 11.9%
- Units
- 51
- Avg. price
- $689.99
New and rising
2 listings are new to the top 10 this month (B0C9MGXWJ9, B0025Z7ZR4), displacing last month's incumbents.
The fastest grower among the bigger sellers is B0DD39GQG9 (KAISAL), ▲ 47.1% to 25 units.
How often shoppers search “fuel injection cleaner”
For sellers: is the Fuel Injection Systems Cleaners segment worth entering?
Judged on the products a buyer would swap for the No. 1 seller here, B0CGN1QCP2 (KAISAL), across the whole category, not only listings whose title says “fuel injection cleaner”.
The six questions
✗ 1. Is the trend real?
Segment sales over the last three months are down 3.6% on the three months before.
Against the same month last year: ▲ 23.8%.
38.5% of segment listings grew over those three months.
Not yet: segment sales are lower than three months before.
Not yet: the rise comes from a few listings, not the whole segment.
✓ 2. Is it big enough to be worth it?
The segment sells about $144,363 a month. A newcomer's realistic share (10%) is $14,436; at a 25% margin, earning $3,033 a month in gross profit (the bar we set for a small seller) needs a segment of at least $121,333 a month.
✓ 3. Can I make money at the market's price?
The median price is $47.67. After Amazon's referral and FBA fees about 69.5% of it is left. Keeping 40% of the price for ads leaves $14.09 (29.5% of price) for landed product cost; the check needs at least 15%.
| Price band | Listings | Units share | |
|---|---|---|---|
| $24.99 – $37.98 | 14 | 73.4% | |
| $37.98 – $50.97 | 8 | 11.1% | |
| $50.97 – $63.97 | 5 | 4.4% | |
| $63.97 – $76.96 | 4 | 2.9% | |
| $76.96 – $89.95 | 9 | 8.2% |
✓ 4. Is there room for a newcomer?
14 listings launched in the past 12 months already take 22.8% of segment sales (the check needs 10%).
32 brands sell here; the top three hold 68.2%.
The top 10 have a median of 87 ratings; a new listing starts from zero and needs about 10 to leave its launch phase.
✗ 5. Can ads bring orders?
2 non-brand searches with at least 1,000 monthly searches sell for at least 2 of the top 5 competitors (the check needs 10). 2 of them make the launch keyword set below.
Search volumes are from August 2026, the latest month SellerSprite has them for.
| Launch keyword | Monthly searches | Competitors selling |
|---|---|---|
| fuel injector tester | 11,601 | 2 |
| injector tester | 4,082 | 2 |
? 6. Is the timing right, and how much stock?
Timing: flat. A new entrant should restock only enough to cover lead time plus safety stock until its own sales prove out, however big the segment looks.
The segment: 40 substitute listings
Listings in the same leaf category rated as substitutes (8+ on the 0/2/5/8/10 scale). 45 more in the category were left out as not substitutable. Ratings are automatic: same leaf category, within the price band, winning the same searches.
| Listing | Price | Units | Margin before cost | Age | Rating | Why |
|---|---|---|---|---|---|---|
 Universal Fuel Injector Tester and Cleaner Tool Kit, DIY Cleaning Tool Kit, 8 Pulse Modes, 4 Wire Dual Channel for 2 Fuel Injectors, 8 Size Cleaning Adapters, 12V/5V Drive B0CNH5P66F · THIKPO |
$26.89 | 1.9K | 64.1% | 33 mo | 10 | same category and price band, wins the same searches |
 Berryman B-12 Chemtool 0116 (4 Pack) - Fuel Injector Cleaner, 15oz Towel | Carburetor & Fuel System Cleaner Additive for Cars B0GT5SZ7J1 · SMA ProQor |
$29.99 | 420 | 58.0% | 5 mo | 8 | same category and price band |
| Fuel Injector Cleaner Tool Kit 1000ML 150PSI Disassembly-Free Fuel Injection System Cleaner Pressure Adjustment Fuel Injector Cleaning Machine with 20PC Adapter for Gasoline Car Throttle/Intake System B0CGN1QCP2 · KAISAL |
$47.99 | 229 | 69.3% | 36 mo | 10 | the trending product |
 EM276SET Fuel Injector Tester & Adapter DIY Cleaning Tool Kit Set (Fuel Injector Tester + Adapter) Fuel System Cleaner Gasoline Engines B07VC37VRB · allsun |
$28.49 | 173 | 68.3% | 86 mo | 8 | same category and price band |
 Catalytic Converter Cleaner Auto Parts Engine, Exhaust System Pipe Carbon Removal Cleaner Treatment Additive Oil, Fuel System Treatment Oil Additive for Gas and Diesel Car B0H4TZXKSB · Dcifuu |
$26.99 | 127 | 72.3% | 3 mo | 8 | same category and price band |
 AUTOOL Fuel Injector Cleaner Kit Fuel System Cleaner Non-dismantle 150PSI B0BLJP493W · AUTOOL |
$79.99 | 125 | 69.2% | 46 mo | 8 | same category and price band |
 EN-49248 Injector Rail Assembly Remover Tool 6706 for Cadillac, Saturn, Pontiac and Chevrolet 27-214 Direct Injection Engines B08T98M567 · E-cowlboy |
$26.50 | 100 | 65.3% | 66 mo | 8 | same category and price band |
 Fuel Injector Cleaner Kit, Non-dismantle Automotive Fuel System Cleaning Kit 1000ML 150PSI Fuel Injector Cleaning Kit for Gasoline Car Intake Valve/Throttle Body/Catalytic Converter Cleaning B0GK93LG82 · YUANRI |
$59.99 | 90 | 69.8% | 6 mo | 8 | same category and price band |
 Berryman 2611 Intake Valve & Combustion Chamber Cleaner – Engine Cleaner Spray with SMA Shop Towel | PEA Induction Carbon Cleaner for GDI, PFI & TBI Fuel Injected Gas Engines B0GSS15G64 · SMA ProQor |
$39.95 | 90 | 69.0% | 5 mo | 8 | same category and price band |
 Universal Fuel Injector Tester and Cleaner Tool Kit, DIY Cleaning Tool Kit B0F32M37KR · THIKPO |
$27.99 | 71 | 66.3% | 17 mo | 8 | same category and price band |
 Injector Cup Nozzle Tube Remover and Installer Tool For Detroit Diesel DD13 DD15 DD16 Heavy Duty Alternative to OEM J-47388-A W470589000700 MH064002 B087BLVTLH · E-cowlboy |
$79.99 | 60 | 77.0% | 77 mo | 8 | same category and price band |
 PLAYOCCAR Fuel Injector Cleaner Kit 1000ML 150PSI Non-Dismantling 20PC B0DK6H2KHR · PLAYOCCAR |
$47.97 | 54 | 69.3% | 21 mo | 10 | same category and price band, wins the same searches |
 INTAKE VALVE CLNR 11OZ B07MZQG8ZC · CRC INDUSTRIES INC |
$70.99 | 42 | 85.0% | 91 mo | 8 | same category and price band |
 Universal Fuel Injector Tester and Cleaner Tool Kit, DIY Cleaning Tool Kit for PWM, Adjustable Pulse Width Freq & Count, 5 Modes, 6 Size Cleaning Adapters,12V/5V Output Power B0FLQHW7HK · Kawish |
$26.99 | 40 | 63.1% | 13 mo | 8 | same category and price band |
 AUTOOL Fuel Injector Tester and Cleaner 12V&70V Fuel Injector Cleaner Kit Fuel Injector Cleaning Kit for GDI, Adjustable Pulse Width RPM & Time, Two Injectors Test Simultaneously B09Q6B6617 · AUTOOL |
$55.99 | 39 | 74.6% | 53 mo | 8 | same category and price band |
 Smilyeez Listing For BG GDI Air Intake & Valve Cleaner PN 260 With Pocket Screwdriver Bundle (2 Cans) B0B57WVC5G · Smilyeez |
$89.95 | 34 | 85.0% | 51 mo | 8 | same category and price band |
 Fuel Injector Cleaner Kit, Non-dismantle 1000ML 150PSI Fuel Injector Tester and Fuel System Cleaner Tool Set Cleaning Machine, Automotive Intake Valve Manifold Throttle Converter Cleaner B071NJJS1C · AUTOOL |
$79.99 | 33 | 73.5% | 108 mo | 8 | same category and price band |
 J-47388-A Injector Cup Nozzle Tube Remover and Installer Tool Perfectly Fits for Detroit Diesel DD13 DD15 DD16 Replaces for OEM W470589000700 MH064002 B0GSVVQV9G · chaofei |
$56.99 | 30 | 73.8% | 6 mo | 8 | same category and price band |
 MR CARTOOL Fuel Injector Cleaner Kit for Catalytic Converter/Intake Valve B0FL1ZFVW1 · MR CARTOOL |
$79.99 | 30 | 69.2% | 11 mo | 8 | same category and price band |
 EWK Fuel Injection Cleaning Kit for Intake Valves & Combustion Chambers B01EEU0HA4 · EWK |
$67.99 | 30 | 73.6% | 106 mo | 8 | same category and price band |
The rules behind this verdict
“Harness” values come from a working Amazon seller's own operating rules; “proposed” values are this site's defaults.
| Rule | Value | Source |
|---|---|---|
| rating from which a product counts as a substitute | 8 | harness |
| consecutive falling months that mark a shrinking segment | 3 | harness |
| a small share of segment sales | 0.1 | harness |
| USD gross profit per week the profit stage needs | 700 | harness |
| share of price kept for ads at break-even | 0.4 | harness |
| ratings that end pre-launch | 10 | harness |
| competitors scanned for keywords | 5 | harness |
| competitors that must convert on a launch keyword | 2 | harness |
| monthly searches a launch keyword needs | 1000 | harness |
| search volume the launch set covers | 0.8 | harness |
| fewest launch keywords | 10 | harness |
| most launch keywords | 20 | harness |
| a substitute is priced within ÷/× this of the trending product | 2.0 | proposed |
| share of segment listings that must be growing | 0.5 | proposed |
| margin after product cost and ads a new entrant can expect | 0.25 | proposed |
| Amazon referral fee when SellerSprite has no margin estimate | 0.15 | proposed |
| share of price that must be left for product cost | 0.15 | proposed |
| age under which a listing counts as a newcomer | 12 | proposed |
| segment sales share newcomers must already hold | 0.1 | proposed |
- Units, revenue and margins are SellerSprite estimates, not Amazon-reported figures. “Margin before cost” is price minus referral and FBA fees.
- Not checked yet: whether page one of each launch keyword shows products like this one.
- Generated 2026-10-08.
How this page is built
- Products: Amazon US listings whose title contains “fuel injection cleaner”, within Fuel Injection Systems Cleaners, ranked by estimated units sold in September 2026.
- Units, revenue and prices are third-party estimates from SellerSprite, not Amazon-reported figures.
- Generated 2026-10-08.