PAI part description

Product Description

Features & Benefits

  • Durable EPDM construction
  • Direct replacement for OE part 4019274
  • Multiple Engine Applications
  • Genuine PAI product including a factory 2-Year Warranty
  • Quality You Can Trust - PAI has established themselves as the leading supplier of aftermarket heavy duty diesel parts, with quality standards that always meet or exceed OE standards

Product Attributes

Material EPDM
Inside Diameter 5.859 IN
Inside Diameter 148.82 MM
As568 Standard Size Dash Number -257
Color/Finish Black Peroxide Cured
Cross Section 0.139 IN
Cross Section 3.53 MM
Durometer 75
Notes O-Ring 0.139 in C/S x 5.859 in ID 3.53 mm C/S x 148.82 mm ID EPDM 75, Peroxide Cured Series # -257

Part Interchanges

Backed by 40 years of part manufacturing experience, PAI Industries® has been providing the heavy-duty truck industry with high-quality service parts for the engine, gearing, exhaust, suspension, and electrical systems. This brand has been manufacturing its products in the USA since 1973, and it owes its worldwide success to its dedicated and experienced employees. PAI takes pride in being an ISO 9001:2015-certified auto and truck parts manufacturer, operating in a 54,000 square feet facility that is equipped with state-of-the-art machinery. PAI’s technicians also perform 100% testing and inspection in its oil pump, water pumps, gear, synchronizer, and cylinder head to ensure durability and reliable performance.

PAI 121389 Cross Reference

We have 3 alternatives for the 121389 by PAI:

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