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Fortpro Front Motor Insulator Replaces 20QL1119A, 20QL1166 | F010290

Fortpro Front Motor Insulator Replaces 20QL1119A, 20QL1166 | F010290

SKU: F010290

Availability: In Stock

Stock Level: More than 50 available.

Shipping: Calculated at Checkout

Regular price $8.35 USD
Regular price Sale price $8.35 USD
Sale Sold out
Shipping calculated at checkout.

About this Item

  • Very Important: Please Verify this product Description and Compatibility before Buying
  • Compatible with Mack R Series Trucks with E6 Engines
  • Built on High Strength Materials to ensure long term reliability
  • Exceeds OEM quality standards
  • Replacement for Mack 20QL1119A, 20QL1166 Front Motor Insulator


Revolutionize your Mack R Series Truck's engine performance with the Fortpro Front Motor Insulator – the ultimate solution for E6 2 Valve and 4 Valve engines. Engineered for a perfect match with OEM part 20QL1166, this insulator drastically reduces engine vibrations, enhancing driving comfort and extending the life of engine components. Made with top-grade materials, it promises durability and stability under tough conditions. Easy to install and designed for maximum efficiency, the Fortpro Front Motor Insulator is a must-have for any Mack truck owner seeking to boost performance and ensure smooth, reliable operation.


  • Brand: Fortpro
  • Vehicle Type: Semi-Trucks / Heavy Trucks
  • Product Department: Suspension
  • Product category : Cabin
  • Part Type : Motor Insulator / Engine Insulator
  • OEM Reference #: 20QL1166
  • Inside Diameter (ID): 4 9/16 in.
  • Thickness : 5/8 in.
  • Depth: 1 9/32 in.
  • Material: Rubber
  • Applications:
    Mack R Series Trucks with E6 2 Valve / 4 Valve Engines


  • Dayton Parts: 325-171
  • Mack: 20QL1119A, 20QL1166
  • PAI: FMM-4650

Shipping Policy

In order to send your purchase, our company may use different freight companies like USPS, UPS and some 3erd Carrier Services for Oversize orders, this will not affect the final price of your order. We will send you all the information in due time. 

For Free Shipping and Freight/Oversize Shipments they are some special term you may check at our Terms & Conditions page.


Return Policy

If for any reason you need to return a purchased item, we have a 30-day return policy, which means you have 30 days after receiving your item to request a return.

To be eligible for a return, your item must met the conditions stablished in our Terms & Conditions.

To start a return, you can contact us at


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