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- Water Neck Block-Off Plates (1) The options in this area are not available since you have already selected choices in the area. Use the "Get Results" button for your current choices.
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Fleece Performance Cooling & Heating

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Fleece Performance Water Neck Block-Off Plates

Fleece Performance water neck block-off plates are thicker than the stock plate and feature an integrated square cut O-ring with no gasket required. In contrast, the OE covers are prone to leakage over time. Fleece block-off plates are an upgrade for the rear engine cover on your Duramax V8 and will stop the coolant leaks for good!

5.0 out of 5 stars ( 2 )

$55.00

Fleece Performance Thermostat Housings

Fleece Performance thermostat housings have an auxiliary port with plug to allow you to customize your coolant routings. Two elbow options are available as direct replacements for specific model years of RAM trucks with 5.9L or 6.7L Cummins, and in specific Fleece coolant bypass kits.

Not Yet Reviewed

$89.99

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