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Pacific Performance Engineering

PPE BAR AND PLATE TRANSMISSION COOLER 124066000 | 2020-2026 6.6L DURAMAX L5P

PPE BAR AND PLATE TRANSMISSION COOLER 124066000 | 2020-2026 6.6L DURAMAX L5P

SKU:124066000

$350.99 USD
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While many of our products are stocked in our warehouse, inventory levels can change quickly. If you need to confirm availability before placing your order, please call or text 970-778-0792.

Improve transmission cooling and help maintain lower operating temperatures in your 2020–2026 GM 6.6L Duramax L5P with the PPE 124066000 Bar & Plate Transmission Fluid Cooler. Designed as a direct-fit replacement for the factory cooler, this upgraded unit features a larger effective cooling area and a wider core to provide significantly improved heat dissipation.

Engineered to remove substantially more heat from the transmission fluid than the factory cooler, this bar-and-plate design helps support transmission performance and reliability in towing, hauling, and demanding driving conditions. Testing has shown transmission temperature reductions of up to 40°F when compared to the stock cooler.

Key Benefits:

  • Provides increased transmission cooling capacity
  • Helps reduce transmission fluid temperatures
  • Supports transmission performance under heavy loads
  • Direct-fit installation with no modifications required

Features:

  • High-efficiency bar-and-plate transmission cooler design
  • Up to 200% greater heat dissipation compared to the factory cooler
  • Observed temperature reductions of up to 40°F
  • High-quality aluminum construction
  • Optimized fin structure for maximum cooling efficiency
  • Designed to maintain proper transmission line pressure
  • Reuses factory mounting hardware
  • Direct-fit replacement

Fitment:

  • 2020–2026 GM Silverado/Sierra 2500HD & 3500HD 6.6L Duramax L5P with Allison Transmission
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