PAI part description

Features & Benefits

  • Durable construction
  • Direct replacement for OE part 1807351
  • Caterpillar C15 / C16 Engine 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

Bore 5.4 IN
Bore 137.16 MM
Compression Ratio 18:1
Height 5.17 in
Height 131.32 MM
Notes Piston Crown 18.0 Compression Ratio Caterpillar C15 / C16 application
Oversized No
Ring Grooves 3

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 311149 Cross Reference

We have 5 alternatives for the 311149 by PAI:

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