Kohler 1706870-S Engine Muffler Assembly W/Heat Shield

The Kohler 1706870-S Engine Muffler Assembly W/Heat Shield helps reduce engine exhaust noise and directs hot exhaust safely away from engine components. Inspect regularly for leaks, loose hardware, or heat shield damage.

This part fixes the following symptoms:

• Excessive engine exhaust noise.

• Rattling muffler or loose heat shield.

• Visible exhaust leaks near the muffler.

• Damaged or rusted muffler assembly.

• Heat shield vibration during engine operation.

Excessive Exhaust Noise

Quick Check: Inspect the muffler for cracks, holes, or loose mounting bolts.

Fix Suggestion: Replace the damaged muffler assembly and tighten all mounting hardware.

Prevention Tip: Periodically inspect the exhaust system for wear and corrosion.

Heat Shield Rattling

Quick Check: Verify that the heat shield is securely fastened to the muffler.

Fix Suggestion: Tighten or replace damaged fasteners or install a new muffler assembly if needed.

Prevention Tip: Check mounting hardware after extended mower use.

Exhaust Leak

Quick Check: Look for soot marks around the muffler connection points.

Fix Suggestion: Replace the muffler assembly if cracks or failed seams are present.

Prevention Tip: Avoid operating the mower with loose exhaust components.

Rusted Muffler Assembly

Quick Check: Examine the muffler body for severe corrosion or metal deterioration.

Fix Suggestion: Replace the complete muffler assembly when corrosion affects performance.

Prevention Tip: Store the mower in a dry location to minimize rust formation.

Customer Experience: Replacing the Kohler 1706870-S Engine Muffler Assembly W/Heat Shield eliminated the loud exhaust noise, and the new heat shield stopped the annoying vibration.