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We will be closed June 27th, 2026 - July 6th, 2026. In store pickups will be unavailable during this time. A majority of orders will ship out normally but may experience a delay in handling time. if you have any questions, please use our live chat before placing an order.
We will be closed June 27th, 2026 - July 6th, 2026. In store pickups will be unavailable during this time. A majority of orders will ship out normally but may experience a delay in handling time. if you have any questions, please use our live chat before placing an order.
Smashed Performance 21301 Coolant Black Off Plate

Smashed Performance 21301 Coolant Black Off Plate

by Smashed Performance
SKU SMP-21301
$50.00 - $50.00
$50.00
$50.00 - $50.00
$50.00
Product Availability
  • Warehouse
    Usually ships out same or next business day
    In Stock
    10+ available

Put the Smashed Performance Coolant Plate in your GM 6.6L Duramax to permanently eliminate coolant leaks from the rear housing on your Duramax engine. The factory cover uses a gasket and over time the plate can warp, and the gaskets can corrode causing coolant leaks. The Plate is made from CNC-machined billet aluminum and features a built-in o-ring seal for a leak-free installation. Each coolant plate comes with a black anodized finish and is ready to install re-using your factory hardware.

FEATURES:

  • Built-In O-Ring Seal
  • Black Anodized Finish
  • Billet Aluminum Construction
  • Eliminate Rear Housing Coolant Leaks