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The Eastern Catalytic 93166 is a direct-fit, oval catalytic converter for the 2002–2004 Chevrolet Trailblazer LS with the 4.2L inline-six. It uses a ceramic honeycomb substrate with ECO III catalyst washcoat, 2.5-inch inlet and outlet, and a 14-inch overall body, and it installs with the factory flange and hanger points. It is a bolt-on replacement for a failed or rusted original unit, not a universal weld-in. Compared with universal-fit converters it costs more but saves fabrication time; compared with OEM it is lighter and cheaper, though owners report a shorter service life and occasional check-engine-light complaints.
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Availability unknownSold by oneclickwarehousedotnet (99.9% positive, 3,500 ratings)Returns: Set by the eBay seller; the eBay Money Back Guarantee covers an item that doesn't arrive or isn't as described.
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Lowest price we've seen: $143.64 on Nov 9 at USAutopartsCar.com. Tracked across 10 stores since Nov 9.
Owners of the 2002–2004 Trailblazer mostly report a clean bolt-on fit and a quiet exhaust note after replacement. A minority say the check-engine light came back or the unit failed within a couple of years.
Eastern Convertors 93166 93166
