Pistons and piston rings manufacturing · Wisconsin

KS Large Bore Piston LLC

Marinette, WI · ~94 workers · 3 years of OSHA Injury Tracking Application data.

C
Average Safety Record
5.2
Avg TCR
5.4
Industry avg
0
Fatalities
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The verdict

KS Large Bore Piston LLC runs at 96% of its industry's injury rate - about level with the typical Pistons and piston rings manufacturing workplace, earning a grade C.

KS Large Bore Piston LLC: 5.2 TCR = 96% of Pistons and piston rings manufacturing BLS 5.4 · 3y Form 300A (see methodology below)

KS Large Bore Piston LLC safety composite

KS Large Bore Piston LLC scores strongest on fatalities (safer than 50% of same-industry peers) and weakest on total case rate (tcr) (safer than 21%), 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).

F

31/100

Percentile-weighted across 3 of 3 measures

Total Case Rate (TCR)
F 5.21 per 100 workers

Safer than 21% of industry peers

DART rate
F 2.61 per 100 workers

Safer than 30% 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

−2.2

2022→2024

KS Large Bore Piston LLC injury rate improved

KS Large Bore Piston LLC's TCR fell 2.2 from 6.5 in 2022 to 4.3 in 2024. Peak filing year was 2022 at 6.5 TCR. In 2024, DART was 0.5× this establishment's average TCR (severity share of cases).

2022=6.5 · 2023=4.8 · 2024=4.3

OSHA ITA Form 300A scorecard

Establishment book 336310 · Marinette, WI AT/BELOW-IND · SMALL

Grade C · TCR 5.2 · 96% of ind

  • DART 2.6 DART
  • RANK #12/13
  • PHOTO Pierburg US, LLC
  • BOOK 3y book
  • INJ 11 inj
  • SIZE ~94 FTE

Nearest TCR peer: Pierburg US, LLC (0.0 TCR gap)

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

KS Large Bore Piston LLC in the TCR neighbourhood

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

TCR

What this shows KS Large Bore Piston LLC averages 5.2 TCR (96% of the Pistons and piston rings manufacturing BLS benchmark).

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

KS Large Bore Piston LLC TCR series: 2022=6.5 · 2023=4.8 · 2024=4.3 · BLS 5.4

Where KS Large Bore Piston LLC falls in its industry

221 Pistons and piston rings manuf establishments

Safer than 21% of graded establishments in this industry, whose median TCR is 2.9.

More dangerous than peersSafer than peers

Narrower to Wisconsin alone (the establishments it most directly competes with for workers and contracts): ranked #12 safest of 13 Pistons and piston rings manuf employers in Wisconsin.

KS Large Bore Piston LLC (94 employees, TCR 5.2) among 29 same-industry peers, split at the industry median of 165 employees and a TCR of 2.9 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 02004006008001,000 05101520 Average employees Total Case Rate KS Large Bore Piston LLC
KS Large Bore Piston LLC (94 employees, TCR 5.2) among 29 same-industry peers, split at the industry median of 165 employees and a TCR of 2.9

KS Large Bore Piston LLC has fewer employees than the Pistons and piston rings manufacturing median and a higher injury rate than the industry's median TCR of 2.9. 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
2024 4.3 2.6 4 1 0
2023 4.8 0.9 4 1 0
2022 6.5 3.3 3 1 0

OSHA ITA peer cross-reference

Establishment peer ledger

336310 · WI · Marinette

221 Pistons and piston rings manufacturing employers nationwide with a credible TCR · 12,834 rated employers in Wisconsin with headcount on file · 58 employers in Marinette, WI · 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 Pierburg US, LLC 5.2 TCR
NAICS-TCR BBK PERFORMANCE INC. 5.2 TCR
NAICS-TCR GVT-Sevierville 5.2 TCR
NAICS-TCR Carter Fuel Systems 5.2 TCR
STATE-SIZE Faulks Bros. Construction, Inc. 94 FTE
STATE-SIZE Fireline Sprinkler, LLC 94 FTE
STATE-SIZE Wall-Tech Inc. 94 FTE
STATE-SIZE Bernatello's Pizza, Inc. - Kaukauna Manufacturing 94 FTE
CITY-NEAR Fincantieri Marinette Marine 1,714 FTE
CITY-NEAR Aurora Medical Center Bay Area 979 FTE
CITY-NEAR FSP-Marinette 819 FTE
CITY-NEAR Johnson Controls 809 FTE
NAT-TCR Electrolizing Inc. 5.2 TCR
NAT-TCR Moly Manufacturing, LLC 5.2 TCR
NAT-TCR Positive Recovery, LLC 5.2 TCR
NAT-TCR Houston Space Center 5.2 TCR
NAT-SIZE Belt Construction Inc. 94 FTE
NAT-SIZE Benchmark Industrial Inc 94 FTE
NAT-SIZE Meiwa Industry North America, Inc. 94 FTE
NAT-SIZE Super Giant Landover Store 2304 94 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: 2024, 2023, 2022. This is publicly available government data - not a legal determination of workplace conditions.
Data sourced from official public datasets. See our methodology for details.