1 3

Fortpro

Trunnion Seal for Mack 4" Spring SW/SWW, SS44/SWS57 - Replaces 88AX449

Trunnion Seal for Mack 4" Spring SW/SWW, SS44/SWS57 - Replaces 88AX449

SKU: F174055

Availability: Out of stock

$7.54 USD
$8.83 USD $7.54 USD
Sale Sold out
Shipping calculated at checkout.

Compatibility & Purchase Guidelines

  • Verify OEM Compatibility: Always match your OEM part number with our cross-reference list before purchasing to ensure proper fitment.
  • Avoid Returns: Do not rely solely on visual similarity. Parts may look identical but differ in specifications. Confirm compatibility using part numbers.
  • Truck Brand Reference Disclaimer: Mentioned truck brands are provided for general reference only and do not guarantee universal compatibility across all models.

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 admin@maxitrucks.com. 

Key Features & Benefits

  • Durable trunnion oil seal for heavy-duty suspension systems. Provides essential protection against road contaminants while retaining vital lubricants for smooth suspension movement.
  • Suspension Compatibility – Ideal for use compatible with Mack 4" Spring SW/SWW and SS44/SWS57 suspension models.
  • Cross-Reference – Specifically designed as a high-quality replacement for part number 88AX449.
  • Contaminant Protection – Seals out dirt, water, and debris to protect sensitive suspension trunnion components.
  • Lubricant Retention – Keeps grease and oil contained to ensure continuous lubrication and reduced friction.
View full details

Enhance your vehicle's suspension system with this Trunnion Oil Seal, engineered to be compatible with Mack 4" Spring SW/SWW and SS44/SWS57 suspension models. This seal is a direct replacement for part number 88AX449. It is built to provide an airtight and watertight barrier, protecting sensitive suspension components from road debris and contaminants. By retaining vital lubricants, it ensures smooth trunnion movement and reduces friction, extending the service life of your parts.



Fortpro Logo

Fortpro is a trusted leader in the development and manufacturing of premium-quality truck parts designed to meet the demands of semi-trucks and heavy-duty trucks. Renowned for innovation, durability, and reliability, Fortpro products are engineered to enhance performance, safety, and efficiency across a wide range of trucking applications.

Whether you're seeking OEM replacement parts or upgrades, Fortpro provides a diverse selection of components backed by a global reputation for quality and innovation. Trust Fortpro for the parts you need to keep your vehicles on the road longer and stronger.

Basic Part Information5 attributes
Basic Part Information
Product LineChassis & Suspension
Category NameTrunnion Seal for Mack
Part TypeOil Seal
Alternate Part NameOil Bath Seal
OEM Part Number88AX449
Application/Fitment Attributes3 attributes
Application/Fitment Attributes
Application TypeHeavy Duty Trucks, Semi-Trucks
Outside Diameter (O.D.)5.625 in.
VMRS Code016-005-000
Dimensional/Physical Attributes3 attributes
Dimensional/Physical Attributes
MaterialNitrile (NBR)
Inside Diameter (ID)4.375 in.
Width0.562 in.
Technical/Performance Attributes1 attribute
Technical/Performance Attributes
Seal Design TypeTrunnion Seal
Packaging / Logistics Attributes:1 attribute
Packaging / Logistics Attributes:
Net Weight0.22 lb.
Intended Application
Intended Application
  • Compatible with Mack Walking Beam SW/SWW Rear Suspensions, Mack 4 Spring SS44/SWS57 Rear Suspensions, and Mack 44,000 lb Rear Suspensions.
  • Always compare with your OEM part number prior to purchase to confirm full compatibility.
  • Automann: MX301
  • Dayton Parts: 334-445
  • Euclid: E-3187
  • Mack: 88AX244, 88AX446, 88AX449, 25624681
  • Meritor: R303187
  • PAI: FOS-4473
Dimensions Not Available.