KS Large Bore Pistons
Tier 1 applicant
Public Comment is now open for KS Large Bore Pistons' application for Tier 1 of the Green Tier program. The public is welcome to submit written comments on this application through Nov. 11, 2026. For more information or to submit a written comment, email GreenTier@wisconsin.gov.
KSLP is one of the world's leading designers and manufacturers of large-bore pistons. The company primarily uses aluminum, ductile iron, and steel to manufacture pistons for heavy-duty applications. It also produces pistons specialized for alternative fuels, including hydrogen, ammonia, and methanol. The company motto, "our power keeps the world moving" reflects KSLP's mission to make the world more sustainable with its products.
Environmental Activities
The facility in Martinette achieved ISO 14001 certification in 2015 and continues to maintain it. KSLP has implemented many features and processes to minimize its environmental impact, including:
- Re-engineering manufactured pistons to reduce emissions factors.
- Changing the spray coating formula to remove the toxicity characteristic from paint booth filters, allowing the waste to be reclassified as a non-hazardous waste.
- Replacing all fluorescent bulbs and fixtures LED lights.
KSLP has recently implemented a reporting program called Position Green, which will align with Green Tier to help the facility integrate sustainable practices into its operations. With both tools in place, KSLP intends to use them to reduce harmful emissions, reduce off-site hazardous waste and minimize the impacts of its waste stream.
News Release
Documents
More information about KSLP's Green Tier participation including the annual reports and application documents are available in an online archive.
| DNR contact | Company contact |
|---|---|
| Weston Wegener 2984 Shawano Ave Green Bay WI 54313-67277 608-284-0908 | Alicia Walter Occupational Health and Safety Nurse 2945 Angwall Dr Marinette WI 54143 715-735-2019 KS Large Bore Pistons, LLC |
