PAI part description

Features & Benefits

  • Durable medium carbon steel construction
  • Direct replacement for OE part 551KC220
  • Mack Multiple Engine Application
  • Genuine Original Equipment Manufactured part; includes OEM 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 Medium Carbon Steel
Thread Size 5/16-18
Bolt Type Flanged 12-Point
Class 8
Drive Type External 12-Point
Fully Threaded Yes
Length 1 in
Notes SCREW, 5/16-18 x 1-1/8, 12 pt., Grade 8

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 840016 Cross Reference

We have 3 alternatives for the 840016 by PAI:

Don't know your part number?

Take a photo and we'll identify it!

Recommended Products

More from PAI (Browse all)