Ngk Spark Plugs Market Report: Sales Volume, Market Share, Leading Brands & Market Trends
Ngk Spark Plugs sales on Amazon US totaled 14,600 units in July 2026 (▲ 6.6% vs. the prior month), generating an estimated $645,905 in revenue across the 50 top-ranked ASINs for this search term. Demand is heavily concentrated at the top of the ranking — the ten best performers capture 54.8% of unit volume and 38.2% of revenue, while a typical listing is priced at $56.95. The keyword itself pulled 16,297 Amazon queries over the same period (▼ 1.4% MoM).
Zooming out to the 12-month window ending July 2026, the ngk spark plugs Top 50 moved 129,300 units and $5,697,115 in cumulative sales — an average of 10,775 units and $474,760 per month. Monthly throughput topped out at 14,600 units in July 2026 and dipped to 7,550 in December 2025, leaving the latest reading 28.1% higher than August 2025.
Ngk Spark Plugs Sales Trend (Trailing 12 Months)
Based on the top 50 ASINs by monthly sales for this keyword
2025/08
2025/09
2025/10
2025/11
2025/12
2026/01
2026/02
2026/03
2026/04
2026/05
2026/06
2026/07
Monthly Sales 2026/07
14.6K
▲ 6.6% MoM
Monthly Revenue 2026/07
$645.9K
▲ 8.7% MoM
Top 10 Market Share 2026/07
54.8%
Ngk Spark Plugs Market Share & Sales Concentration on Amazon US — July 2026
The most-sold ngk spark plugs listing on Amazon US in July 2026 is ASIN B003BUCNNS (Brand: NGK), which sold 1,000 units at $21.50 apiece — equal to 6.8% of every unit tracked in this report.
The Top 10 ASINs account for 8,000 units and $246,779 in July 2026 — 54.8% of unit volume and 38.2% of revenue among all 50 ranked ASINs in this report.
Sales Volume of Top ASINs for 'Ngk Spark Plugs' on Amazon
July 2026
Is 54.8% Top 10 share highly concentrated?
Ask AI to evaluate competition, market structure, and entry opportunities using ’s tracked Amazon sales, ranking, and keyword data.
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Top 5 Volume Share breakdown
B003BUCNNS
NGK Iridium IX DCPR7EIX Spark Plugs Compatible with 1999-2016 Harley Davidson Twin Cam (Pair)
1K
▲ 0.0%vs. prior month
$21.3K
latest month
12-month trend
B00PMKOI06
NGK # 3186 G-Power Platinum Spark Plugs TR5GP - 8 PCSNEW | Replaces 3 6 8 SP432 19145290 19250962 19250963 19250967 25164641 25164644 AGSF32FM 4511 4713 IT16TT PT16TT 4005 4205 4309.
1K
▲ 0.0%vs. prior month
$36.5K
latest month
12-month trend
B07FNVYGFL
NGK LKAR7BIX-11S Iridium IX Spark Plug (93501 Iridium Ix), 4 Pack | Fits select 4-cylinder Acura, Honda, Lexus, Mazda, Pontiac, Scion, Subaru & Toyota models (2008–2025, varies by model)
1K
▲ 0.0%vs. prior month
$33.6K
latest month
12-month trend
B07FP6KFLT
NGK LKR7DIX-11S Iridium IX Spark Plug (93175 Iridium Ix), 4 Pack | Ultra-fine 0.6mm iridium tip sharpens throttle response and acceleration. 40,000-60,000 mile fine-wire performance.
1K
▲ 0.0%vs. prior month
$32.7K
latest month
12-month trend
B0724YYQG7
NGK 3951 Spark Plugs TR55 (8 Pack) | Replaces SP400 SP446 41-600 41-601 41-606 SP-413 241-606 5613869 5614283 5614284 AGSF22N AGSF23C AGSF32N R42LTS6 R43LTS6.
800
▲ 0.0%vs. prior month
$21.3K
latest month
12-month trend
B07RL98RX6
NGK Iridium IX Spark Plug LFR5AIX-11 (4 Pack) Compatible With TOYOTA CAMRY LE 2010-2014 2.5L/2494cc
800
▲ 33.3%vs. prior month
$23.9K
latest month
12-month trend
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Trending Ngk Spark Plugs Products — Growth Leaders & New Top 10 Entrants
Based on July 2026 data, this shortlist surfaces the two kinds of ASIN worth keeping an eye on — the ones that just broke into the Top 10, and the ones growing fastest month over month. Specifically, one ASIN forced its way in: B07X7HL3PS booked 500 units at $37.50, with ▲ 0.0% MoM change. On the growth side, B0D1SHH428 leads positive momentum with ▲ 300.0% MoM growth on 200 units, with B07FP438JV close behind at ▲ 200.0% MoM on 300 units.
The two signals carry different weight. A fresh entrant means share has already changed hands — an incumbent gave up its place to make room, so any competitive set drawn up a month ago is now out of date. A steep growth rate works as the earlier warning: it marks demand that is still compounding, usually a month or two before the ranking catches up to it.
B07X7HL3PS
NGK 2667 Spark Plug BKR7EIX Iridium IX (4 Pack) | Replaces 3290 5310 IK22 VK22 K22PR-ZU 3069 9801 9801S RC7PYCBX RC8WYPB3 K7RTP. 40k-60k mileage rated.
Price
$37.50
Rating
4.6
Reviews
279
Latest month sales
B0D1SHH428
6 pc NGK Iridium IX Spark Plugs compatible with Honda Pilot 3.5L V6 2009-19 | Ultra-fine 0.6mm iridium tip sharpens throttle response and acceleration. 40,000-60,000 mile fine-wire performance.
Price
$58.92
Rating
4.6
Reviews
116
Latest month sales
B07FP438JV
NGK LKAR6AIX-11 Iridium IX Spark Plug (91187 Iridium Ix), 4 Pack | Replaces XP5684. 40k-60k mileage rated.
Unlock to view ASIN details and product titles
Price
$33.08
Rating
4.8
Reviews
1.7K
Latest month sales
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