M2K’s Thermostat Spacer for the Toyota 4.0L engine pushes the thermostat further away from the engine.
This allows for additional clearances which are necessary to install a secondary alternator or a supercharger kit.
This Thermostat Spacer kit is a replacement for TRD PTR29-35087 (Thermostat Housing Spacer with O Rings Kit) which was designed for the 4.0L TRD Supercharger kit among other applications.
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