Pistons and piston rings manufacturing · Wisconsin

KS Large Bore Pistons, Inc.

Marinette, WI · ~58 workers · 2 years of OSHA Injury Tracking Application data.

D
Poor Safety Record
7.6
Avg TCR
5.4
Industry avg
0
Fatalities
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The verdict

KS Large Bore Pistons, Inc. runs at 140% of its industry's injury rate - more dangerous than the typical Pistons and piston rings manufacturing workplace, earning a grade D.

KS Large Bore Pistons, Inc.: 7.6 TCR = 140% of Pistons and piston rings manufacturing BLS 5.4 · 2y Form 300A (see methodology below)

KS Large Bore Pistons, Inc. safety composite

KS Large Bore Pistons, Inc. scores strongest on fatalities (safer than 50% of same-industry peers) and weakest on total case rate (tcr) (safer than 11%), 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

21/100

Percentile-weighted across 3 of 3 measures

Total Case Rate (TCR)
F 7.58 per 100 workers

Safer than 11% of industry peers

DART rate
F 5.05 per 100 workers

Safer than 11% 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%).

Rising injury rate

KS Large Bore Pistons, Inc.: 5.1 → 10.1 TCR

Peak year 2021 @ 10.1 TCR · DART/TCR 0.67× in 2021

KS Large Bore Pistons, Inc.'s TCR rose 5.0 from 5.1 in 2017 to 10.1 in 2021. In 2021, DART was 0.67× this establishment's average TCR (severity share of cases).

OSHA ITA Form 300A scorecard

Establishment book 336310 · Marinette, WI ABOVE-IND · SMALL

Grade D · TCR 7.6 · 140% of ind

  • DART 5.0 DART
  • RANK #13/13
  • PHOTO TPR Federal-Mogul Te…
  • BOOK 2y book
  • INJ 6 inj
  • SIZE ~58 FTE

Nearest TCR peer: TPR Federal-Mogul Tennessee, Inc. (0.1 TCR gap)

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

KS Large Bore Pistons, Inc. in the TCR neighbourhood

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

TCR

What this shows KS Large Bore Pistons, Inc. averages 7.6 TCR (140% 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 Pistons, Inc. TCR series: 2017=5.1 · 2021=10.1 · BLS 5.4

Where KS Large Bore Pistons, Inc. falls in its industry

221 Pistons and piston rings manuf establishments

Safer than 11% 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 #13 safest of 13 Pistons and piston rings manuf employers in Wisconsin.

KS Large Bore Pistons, Inc. (58 employees, TCR 7.6) 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 Pistons, Inc.
KS Large Bore Pistons, Inc. (58 employees, TCR 7.6) among 29 same-industry peers, split at the industry median of 165 employees and a TCR of 2.9

KS Large Bore Pistons, Inc. 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
2021 10.1 5.0 3 1 0
2017 5.1 1.7 3 0 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 TPR Federal-Mogul Tennessee, Inc. 7.7 TCR
NAICS-TCR ABM 7.9 TCR
NAICS-TCR Engine Power Components 7.0 TCR
NAICS-TCR Zenith Power Products 8.2 TCR
STATE-SIZE Hall's Calf Ranch 58 FTE
STATE-SIZE Bilfinger Green Bay 58 FTE
STATE-SIZE UFP Warrens LLC 58 FTE
STATE-SIZE AHC AMC Sheboygan Cty 17080007 58 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 Dover-Foxcroft 7.6 TCR
NAT-TCR SMCTD-South Base Bus Transportation 7.6 TCR
NAT-TCR Brookdale Edina 7.6 TCR
NAT-TCR EMPSD, Inc. dba EmpireWorks 7.6 TCR
NAT-SIZE Win Vent Windows Inc 58 FTE
NAT-SIZE Rose City Health and Rehabilitation Center 58 FTE
NAT-SIZE Allied Sales & Distribution, Inc. 58 FTE
NAT-SIZE La Paloma Nursing Center 58 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: 2021, 2017. This is publicly available government data - not a legal determination of workplace conditions.

Read our methodology - how this data is sourced, computed, and verified.

Data sourced from official public datasets. See our methodology for details.