Spark plugs for internal combustion engines manufacturing · Michigan

NGK Spark Plugs (U.S.A.), Inc.

Wixom, MI · ~178 workers · 3 years of OSHA Injury Tracking Application data.

A
Excellent Safety Record
0.2
Avg TCR
5.4
Industry avg
0
Fatalities
Subscribe to safety-record updates (RSS)

The verdict

NGK Spark Plugs (U.S.A.), Inc. runs at 4% of its industry's injury rate - far safer than the typical Spark plugs for internal combustion engines manufacturing workplace, earning a grade A.

NGK Spark Plugs (U.S.A.), Inc.: 0.2 TCR = 4% of Spark plugs for internal combustion engines manufacturing BLS 5.4 · 3y Form 300A (see methodology below)

NGK Spark Plugs (U.S.A.), Inc. safety composite

NGK Spark Plugs (U.S.A.), Inc. scores strongest on total case rate (tcr) (safer than 97% of same-industry peers) and weakest on fatalities (safer than 50%), blended into one 0-100 breakdown against same-industry peers. A missing measure drops out and redistributes its weight rather than deflating the score. This is a per-dimension breakdown, distinct from the single letter grade above it (which weights TCR alone against the BLS industry benchmark).

B

81/100

Percentile-weighted across 3 of 3 measures

Total Case Rate (TCR)
A 0.19 per 100 workers

Safer than 97% of industry peers

DART rate
B 0 per 100 workers

Safer than 84% of industry peers

Fatalities
D 0

Safer than 50% of industry peers

Benchmarked live against every credibly-rated employer in the same NAICS industry code in the current OSHA extract (a segment must have at least 8 rated peers to benchmark). Not a legal or compliance determination; PlainSafetyScore's own weighting (TCR 40%, DART 35%, fatalities 25%).

TCR Δ

−0.6

2021→2023

NGK Spark Plugs (U.S.A.), Inc. injury rate improved

NGK Spark Plugs (U.S.A.), Inc.'s TCR fell 0.6 from 0.6 in 2021 to 0.0 in 2023. Peak filing year was 2021 at 0.6 TCR. In 2023, DART was 0× this establishment's average TCR (severity share of cases).

2021=0.6 · 2022=0.0 · 2023=0.0

OSHA ITA Form 300A scorecard

Establishment book 336320 · Wixom, MI AT/BELOW-IND · MID

Grade A · TCR 0.2 · 4% of ind

  • DART 0.0 DART
  • RANK #4/36
  • PHOTO Aisin Electronics
  • BOOK 3y book
  • INJ 0 inj
  • SIZE ~178 FTE

Nearest TCR peer: Aisin Electronics (0.0 TCR gap)

Read with this employer → · Industry book → · Michigan employers → · Look up another →

NGK Spark Plugs (U.S.A.), Inc. in the TCR neighbourhood

Average Total Case Rate among this establishment and nearest same-industry peers

TCR

What this shows NGK Spark Plugs (U.S.A.), Inc. averages 0.2 TCR (4% of the Spark plugs for internal combustion engines manufacturing BLS benchmark).

Source U.S. Department of Labor, OSHA Injury Tracking Application (Form 300A) As of 2026-08-25

NGK Spark Plugs (U.S.A.), Inc. TCR series: 2021=0.6 · 2022=0 · 2023=0 · BLS 5.4

Where NGK Spark Plugs (U.S.A.), Inc. falls in its industry

216 Spark plugs for internal combu establishments

Safer than 97% of graded establishments in this industry, whose median TCR is 1.9.

More dangerous than peersSafer than peers

Narrower to Michigan alone (the establishments it most directly competes with for workers and contracts): ranked #4 safest of 36 Spark plugs for internal combu employers in Michigan.

NGK Spark Plugs (U.S.A.), Inc. (178 employees, TCR 0.2) among 29 same-industry peers, split at the industry median of 162 employees and a TCR of 1.9 2×2 strategic matrix plotting 30 entities by Average employees (X) and Total Case Rate (Y), with a crosshair dividing the plot into four quadrants. Larger & higher-riskSmaller & higher-riskLarger & saferSmaller & safer than peers 05001,0001,500 0246810 Average employees Total Case Rate NGK Spark Plugs (U.S.A.), Inc.
NGK Spark Plugs (U.S.A.), Inc. (178 employees, TCR 0.2) among 29 same-industry peers, split at the industry median of 162 employees and a TCR of 1.9

NGK Spark Plugs (U.S.A.), Inc. has more employees than the Spark plugs for internal combustion engi median and a lower injury rate than the industry's median TCR of 1.9. Workforce size and injury rate do not always move together within the same industry -- some of its smaller peers run higher rates than its larger ones, and vice versa.

Year-by-Year Safety Data

Year TCR DART Injuries Illnesses Fatalities
2023 0.0 0.0 0 0 0
2022 0.0 0.0 0 0 0
2021 0.6 0.0 0 1 0

OSHA ITA peer cross-reference

Establishment peer ledger

336320 · MI · Wixom

216 Spark plugs for internal combustion engines manufacturing employers nationwide with a credible TCR · 16,393 rated employers in Michigan with headcount on file · 116 employers in Wixom, MI · 4 cross-state NAT-TCR peers · 4 cross-state NAT-SIZE peers. Closest matches by relationship code are listed below.

Rel Establishment Metric
NAICS-TCR Aisin Electronics 0.2 TCR
NAICS-TCR Keihin Carolina System Technology 0.2 TCR
NAICS-TCR TRAM Inc. 0.2 TCR
NAICS-TCR Tenneco (Federal Mogul, LLC.) 0.1 TCR
STATE-SIZE Headquarters 178 FTE
STATE-SIZE Trinseo LLC Michigan Operations 178 FTE
STATE-SIZE NAPCO Pipe & Fittings 178 FTE
STATE-SIZE LOG DETROIT_1558125 178 FTE
CITY-NEAR Carl Zeiss Industrial Quality Solutions 575 FTE
CITY-NEAR Material Handling 359 FTE
CITY-NEAR Gas Construction Southeast 348 FTE
CITY-NEAR Wixom Trijicon 328 FTE
NAT-TCR Continental Employment Services Danville 0.2 TCR
NAT-TCR Sappi NA - South Portland 0.2 TCR
NAT-TCR Tully Environmental 0.2 TCR
NAT-TCR Albemarle 0.2 TCR
NAT-SIZE dormakaba_Reamstown 178 FTE
NAT-SIZE The Village at Gleannloch Farms 178 FTE
NAT-SIZE Riverview Health and Rehabilitation 178 FTE
NAT-SIZE PAXXUS 178 FTE

Rel codes: NAICS-TCR · STATE-SIZE · CITY-NEAR · NAT-TCR/NAT-SIZE cross-state. Read with this employer →

Data Source: OSHA Injury Tracking Application (ITA), mandatory establishment-level injury/illness reports. Grades compare employer Total Case Rate (TCR) to BLS IIF industry benchmarks. Data covers years reported by this establishment: 2023, 2022, 2021. This is publicly available government data - not a legal determination of workplace conditions.
Data sourced from official public datasets. See our methodology for details.