7C-2431 Piston Body for 3508 3512 3516 Engine | Ref 4W7402 8N7808 2W3189

7C-2431 Piston Body for 3508 3512 3516 Engine | Ref 4W7402 8N7808 2W3189

$299.00
$299.00
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7C-2431 Piston Body for 3508 3512 3516 Engine | Ref 4W7402 8N7808 2W3189
  • 7C-2431 Piston Body for 3508 3512 3516 Engine | Ref 4W7402 8N7808 2W3189
  • 7C-2431 Piston Body for 3508 3512 3516 Engine | Ref 4W7402 8N7808 2W3189
  • 7C-2431 Piston Body for 3508 3512 3516 Engine | Ref 4W7402 8N7808 2W3189
  • 7C-2431 Piston Body for 3508 3512 3516 Engine | Ref 4W7402 8N7808 2W3189
  • 7C-2431 Piston Body for 3508 3512 3516 Engine | Ref 4W7402 8N7808 2W3189
  • 7C-2431 Piston Body for 3508 3512 3516 Engine | Ref 4W7402 8N7808 2W3189
  • 7C-2431 Piston Body for 3508 3512 3516 Engine | Ref 4W7402 8N7808 2W3189
  • 7C-2431 Piston Body for 3508 3512 3516 Engine | Ref 4W7402 8N7808 2W3189
7C-2431 Piston Body for 3508 3512 3516 Engine | Ref 4W7402 8N7808 2W3189

7C-2431 Piston Body for 3508 3512 3516 Engine | Ref 4W7402 8N7808 2W3189

$299.00
$299.00

Product Overview

The 7C-2431 Piston Body Assembly (Body As-Piston) is a critical internal combustion component designed for high-displacement Caterpillar 3500 series engines. This high-strength eutectic aluminum alloy piston is engineered to withstand the extreme cylinder pressures and temperatures characteristic of industrial, marine, and power generation environments. It is a direct-fit replacement for several legacy Caterpillar part numbers.

Part Numbers & Cross-Reference

This piston assembly replaces and is interchangeable with the following Caterpillar (CAT) part numbers:

  • Main Part Number: 7C-2431 / 7C2431
  • Legacy / Superseded Numbers: 4W-7402 (4W7402)  |  8N-7808 (8N7808)  |  2W-3189 (2W3189)  |  4W-4746 (4W4746)
  • Related Reman Number: 0R-3841
  • Condition: Brand New Aftermarket Replacement

Technical Specifications

  • Material: Premium Eutectic Aluminum Alloy (high thermal stability)
  • Compression Ratio: 13.0:1 (Standard for 3500 series diesel applications)
  • Dimensions: Height approx. 9.36 in; Diameter approx. 9.1 in
  • Weight: Approx. 11.6 – 15.3 lbs (varies by packaging)
  • Features: Dual-insert ring groove design for durability; anti-friction coating for break-in protection

Applications & Engine Compatibility

Specially designed for Caterpillar's 3500 engine platform:

  • Compatible Engine Models: CAT 3508, 3508B, 3512, 3512B, 3516, 3516B
  • Marine: Commercial propulsion engines and marine generator sets
  • Power Generation: SR4 Diesel Generators, standby power modules
  • Mining & Earthmoving: 785 / 789 / 793 Mining Trucks, 994 Wheel Loaders
  • Industrial: Heavy-duty pumping units and locomotive applications

B2B Export Advantage

  • OEM Specification Match: Manufactured to meet or exceed original dimensions and metallurgical standards.
  • Ready for Export: Available for bulk wholesale orders with specialized anti-corrosion export packaging.
  • Global Logistics: Fast shipping via air (DHL / FedEx / UPS) or sea freight to support international engine rebuild centers.

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