Lawn Mower & Yard Tractor Components
Mufflers, exhaust systems, and metal-formed components for walk-behind mowers, lawn tractors, and yard equipment — built to your specification.
CS Cosmos STIHL manufactures OEM mufflers, exhaust systems, and stamped components for lawn mowers and yard tractors — engineered for sound, heat, and vibration control, then finished and assembled in-house for walk-behind and ride-on lawn equipment platforms.

For OEMs building walk-behind mowers, lawn tractors, and yard equipment, the muffler and exhaust system are performance components — they attenuate sound, route heat away from the operator and cutting deck, and survive constant vibration and outdoor exposure. CS Cosmos STIHL engineers and manufactures lawn and yard equipment mufflers, exhaust systems, and stamped components from your drawings — finished and assembled in-house.
What We Build
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Lawn mower and yard tractor mufflers and exhaust assemblies
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Exhaust tubing, bends, brackets, heat shields, and mounting hardware
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Stamped structural components — guards, panels, mounts, and reinforcement brackets
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Spot- and MIG-welded subassemblies delivered weld-complete
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Powder-coated, plated, and black-oxide finished components
Engineered for Sound, Heat, and Endurance
Lawn and yard equipment runs in residential and light-commercial environments where noise, heat, and durability all affect product acceptance. We design mufflers to balance sound attenuation against backpressure so engine performance is preserved, route and shield heat away from the operator zone and cutting deck, and specify vibration-resistant mounting to prevent fatigue failures across the mowing season. Material and finish selection — cold roll steel, aluminized steel, stainless, and corrosion-resistant coatings — is matched to outdoor exposure and product lifecycle.
Capability Snapshot
Annual Capacity
5M+ Units
Materials
Aluminized & Stainless Steel, Cold-Rolled, HSLA
Processes
Stamping, Deep Drawing, Weld, Finish, Assembly
Best Fit
Single- & Multi-Platform OEM Lawn/Yard Programs
One Source for the Whole Exhaust System
Cutting, forming, deep drawing, welding, finishing, and assembly under one roof means an OEM gets a complete, finished exhaust system and the surrounding stamped components from a single accountable partner — not a coordination project across a stamper, a coater, and an assembler. That consolidation reduces cost, lead time and keeps seasonal lawn-equipment programs on schedule.
Frequently Asked Questions
Does CS Cosmos STIHL make custom lawn mower mufflers?
Yes. CS designs and manufactures custom lawn mower and yard tractor mufflers and exhaust assemblies to your prints, from prototype through production.
Can CS build complete exhaust systems for lawn tractors?
Yes. CS delivers the full system — muffler, tubing, brackets, heat shields, and mounting hardware — engineered and validated as one coordinated assembly.
Will the components arrive finished and assembled?
Yes. In-house stamping and assembly mean components ship finished and weld-complete, ready for the OEM line.
What materials are used for lawn equipment exhaust?
Cold-rolled Steel, or Aluminized, is usually the most cost-effective — selected during DFM to balance strength, weight, and cost.
Does CS support seasonal lawn-equipment production volumes?
Yes. Capacity allocation, material procurement, and scheduling are planned around OPE seasonal demand, scaling from short runs to 5M+ annual units.
Quote a Lawn Mower or Yard Tractor Component
Send your drawings and program details and CS Cosmos STIHL will engineer, fabricate, finish, and assemble the components you need — under one roof in South Chicago Heights, IL. Our team will follow up promptly.
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Share your application, drawings, and target volumes
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Include material, thickness, finish, and quantity
