Caterpillar 4N-6638 Muffler - 4N6638
MufflerCaterpillar Muffler — 4N-6638 / 4N6638. Original-grade and OEM service parts for road construction machinery. Global delivery. Backed by a 1-year warranty.
Caterpillar 4N-6638 / 4N6638 Muffler delivers OEM and aftermarket correct exhaust noise attenuation in Caterpillar diesel engines for demolition equipment. OEM-matched baffle and housing geometry ensure correct back-pressure characteristics and long service life under continuous exhaust temperatures. Available with a 1-year warranty. Produced under strict quality control to maintain OEM performance standards.
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