OER 2011-14 Chevrolet Silverado, GMC Sierra 2500HD, 3500 Pickup With 6.6L Duramax Diesel Engine Coolant Recovery Tank With 20 lb. Pressure Cap

Part Number: 22866587B-OER

OER 2011-14 Chevrolet Silverado, GMC Sierra 2500HD, 3500 Pickup With 6.6L Duramax Diesel Engine Coolant Recovery Tank With 20 lb. Pressure Cap

Part Number: 22866587B-OER

Original price was: $59.74.Current price is: $51.95.

In Stock

( Inventory updated: 07/02/2026 )

Estimated ship date: 2-3 business days

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2011-14 Chevrolet Silverado, GMC Sierra 2500HD, 3500 Pickup With 6.6L Duramax Diesel Engine – Coolant Recovery Tank With 20 lb. Pressure Cap

Upgrade your vehicle’s cooling system with the high-quality Coolant Recovery Tank designed specifically for the 2011-2014 Chevrolet Silverado and GMC Sierra 2500HD and 3500 Pickup equipped with the powerful 6.6L Duramax Diesel engine. This replacement tank ensures proper function and durability, effectively managing coolant overflow to promote the longevity of your engine.

Key Features and Benefits

  • Perfectly replicates the original configuration for seamless installation and fitment.
  • Manufactured from premium materials to withstand the rigors of heavy-duty use.
  • Includes a reliable 20 lb. pressure cap, replacing OE part # 13502509, to maintain optimal pressure levels.
  • Compatible with various GM part numbers including 22866587, 25869265, and 22810003.
  • Enhances safety and efficiency in your cooling system by preventing coolant loss and overheating.

Technical Specifications

  • Part Number: 22866587B
  • Brand: OER

Fitment Information

Chevrolet Truck Applications

  • 2011 – 2014 Chevrolet Silverado 2500 HD
  • 2012 – 2013 Chevrolet Silverado 3500
  • 2011 – 2014 Chevrolet Silverado 3500 HD
  • 2011 – 2014 Chevrolet Truck

GMC Truck Applications

  • 2011 – 2011 GMC Canyon
  • 2011 – 2014 GMC Sierra 2500 HD
  • 2011 – 2014 GMC Sierra 3500 HD
  • 2011 – 2014 GMC Truck

Investing in the right parts is crucial for the performance and reliability of your vehicle. This Coolant Recovery Tank for the 2011-14 Chevy Silverado and GMC Sierra 2500HD and 3500 is designed to provide a perfect fit and superior performance, ensuring your engine remains cool and efficient. Dont wait-enhance your vehicle’s cooling system today!

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OER

Original Equipment Reproduction - OER - is the leading manufacturer and distributor of quality classic automotive restoration parts and accessories. OER products are meticulously manufactured to replicate the OEM appearance, quality and fit that meets or exceeds the original factory specifications.

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