Catalytic Converter for Isuzu Hombre (1996-2000) 2.2L Rear

Direct-Fit Rear Catalytic Converter for 1996-2000 Isuzu Hombre (GMT325)

What it Does: The direct-fit rear catalytic converter replaces the aged, clogged, or degraded emissions core on the 1996-2000 Isuzu Hombre to clear catalyst efficiency DTCs and eliminate excessive exhaust backpressure.

The Stock Isuzu Hombre Catalyst Degradation

Over extended mileage, the factory catalytic converter on the GMT325 platform suffers thermal breakdown, chemical poisoning, and structural core fragmentation. Within the LN2 exhaust tract, unburnt hydrocarbons and thermal cycling cause the factory ceramic washcoat to sinter, losing active surface area. This results in standard catalyst inefficiency trouble codes (P0420/P0430), elevated exhaust backpressure, restricted scavenge velocity, reduced fuel economy, and engine sluggishness under load.

The Engineering Solution

This replacement converter restores factory-spec exhaust flow and emissions scrubbing without requiring cutting, sleeve clamping, or custom fabrication. Manufactured with a heavy-gauge 409 stainless steel shell, it encases a high-density 600 CPSI cordierite ceramic honeycomb substrate loaded with a balanced palladium and rhodium washcoat. Mandrel-bent inlet and outlet tubing preserves flow continuity, while precision-machined thick flanges prevent exhaust leaks. Factory-located oxygen sensor bungs ensure that secondary O2 sensors thread directly into the exhaust stream without sensor harness extensions.

What's Included

• 1 Direct-Fit Rear Catalytic Converter
• Mounting Hardware

Technical Specifications

Compatibility

• 1996-2000 Isuzu Hombre 2.2L 4-Cylinder (Federal OBD-II Emissions)

Frequently Asked Questions & Fitment Warnings

Does this fit the GMT325 Hombre?

Yes, this is a direct fit for the 1996-2000 Isuzu Hombre equipped with the LN2 engine. This part is not legal for sale, purchase, or use on vehicles registered in California, Colorado, New York, or Maine.

Is welding or pipe expansion required for installation?

No, this unit is an engineered bolt-on assembly designed to mount directly to original flanges using the supplied mounting hardware.

The Isuzu Workhorse Standard

Engineered to handle sustained payload hauling and daily fleet demands, this converter delivers corrosion-resistant exhaust reliability, maintains required low-end torque output, and preserves long-term emissions integrity.