Multiquip 42602-12 Exhaust Turbo to DOC Gasket

The Multiquip 42602-12 is a genuine OEM Exhaust Turbo to DOC Gasket designed for the HTX6H and STX6H hydrostatic ride-on power trowels. As a direct Multiquip OEM component, it is manufactured to the exact material grade and compression specifications required for the turbocharger-to-diesel oxidation catalyst connection on these machines. This gasket is the correct replacement for HTX6H and STX6H units and installs directly with no modification to the exhaust assembly.

Key Features

• OEM Sealing Specification — Manufactured to the precise compression rating and heat-resistant material grade required at the turbo-to-DOC exhaust junction, ensuring a proper gas-tight seal under operating temperatures.
• Direct-Fit Replacement — Engineered to match the original bolt pattern and flange dimensions of the HTX6H and STX6H exhaust system, allowing a straightforward swap during service.
• Confirmed Fitment — Compatible with the HTX6H and STX6H Whiteman hydrostatic ride-on power trowels.
• Exhaust Integrity — A correctly seated gasket at this connection prevents exhaust gas leaks that can lead to incomplete after-treatment, elevated under-hood temperatures, and potential sensor faults on the DOC system.
• Emissions System Compliance — The turbo-to-DOC connection is part of the machine's emissions after-treatment path; using the correct OEM gasket helps maintain proper DOC function and keeps the exhaust system operating within designed parameters.

The Exhaust Turbo to DOC Gasket seals the interface between the turbocharger outlet and the diesel oxidation catalyst inlet. This joint is exposed to high exhaust temperatures and pressure pulses, making a properly rated gasket critical to maintaining a leak-free seal. When this gasket deteriorates or fails, exhaust gases can escape at the joint, reducing after-treatment efficiency, producing visible exhaust leaks, and potentially triggering fault codes on emissions-related sensors.

Part Details

Compatibility & Fitment

Verify Before You Order

Fitment is machine-number and revision-specific; always confirm your model and serial number against the fitment list.

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