PAI part description

Product Description

Features & Benefits

  • Durable steel construction
  • Direct replacement for OE part 673GB222
  • Mack V8 E9/E6-2 Valve/4 Valve/E7/E-Tech/ASET Engines Application
  • 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 Carbon Steel
Color/Finish Gray
Notes Starter Ring Gear Mack V8 E9/E6-2 Valve/4 Valve/E7/E-Tech/ASET Engines Application
Tooth Count (outer) 118

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 3990 Cross Reference

We have 4 alternatives for the 3990 by PAI:

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