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F174055 | SEAL TRUNNION 44.000 LBS F88AX449 | Replace FOS-4473

F174055 | SEAL TRUNNION 44.000 LBS F88AX449 | Replace FOS-4473

SKU: SKU:F174055

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Regular price $ 10.51 USD
Regular price Sale price $ 10.51 USD
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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 meet the conditions established in our Terms & Conditions.

To start a return, use our Contact Form

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Product Data Sheet


Upgrade your Mack truck's performance with Fortpro's Trunnion Seal, a precision-engineered solution for Mack 4" Spring Walking Beam SW/SWW, SS44/SWS57 Rear Suspensions. Seamlessly replacing OEM parts 88AX244, 88AX446, and 88AX449, this trunnion seal ensures a perfect fit, enhancing durability and efficiency in critical suspension components. Crafted with top-quality materials, the Fortpro Trunnion Seal acts as a formidable barrier, providing unparalleled protection against wear and tear. Trust in Fortpro's commitment to quality, reliability, and innovation, and elevate your driving experience with a smoother, more dependable ride. Upgrade your Mack truck now and experience engineering excellence. Call today and hit the road with confidence!


  • Brand: Fortpro
  • Vehicle Type: Semi-Trucks / Heavy Trucks
  • Product Department: Suspension
  • Product category : Rear Suspension
  • Part Type : Trunnion Seal
  • OEM Reference #: 88AX449
  • Outside Diameter (O.D): 5 1/2 in.
  • Inside Diameter (ID): 4 3/8 in.
  • Thickness: 9/16 in.
  • Applications:
    Mack Walking Beam SW/SWW
    Mack 4" Spring SS44/SWS57 Rear Suspensions
    Mack 44.000 Lbs Rear Suspension


  • Automann: MX301
  • Dayton Parts: 334-445
  • Euclid: E-3187
  • Mack: 88AX244, 88AX446, 88AX449, 25624681
  • Meritor: R303187
  • PAI: FOS-4473


Dimension Not Available.