6J4003 Piston Wear Ring for Caterpillar Equipment

6J4003 is a piston wear ring used in Caterpillar equipment, including track-type tractors, skidder machines, autograders, multifunctional loaders, wheel-type loaders, wheeled tractor-scrapers and track loaders. This is a new aftermarket spare part manufactured by CTP (Costex Tractor Parts).

The part is identified by the Caterpillar number format 6J-4003 and is listed for the equipment models and machine series below.

Fitment

• Track-type tractors:
  • 4
  • 4A
  • 4P
  • 4S
  • 54
  • 55
  • D4H
  • D4H III
  • D4H XL
• Skidding machines on wheels (skidders):
  • 528
  • 528B
  • 530B
  • FB518
• Autograders:
  • 16G
• Multifunctional loaders with attachment kits:
  • IT18
  • IT28
  • IT28B
• Wheel-type loaders:
  • 916
  • 920
  • G916
• Wheeled tractor-scrapers:
  • 615
  • 615C
• Track loaders:
  • 951B
  • 951C
• Skidding Caterpillar tractors:
  • 4P
  • 517
  • 527
  • D4HTSK II
  • D4HTSK III

Cross-reference numbers

• 6J4003
• 6J-4003

Part number 6J4003 is the unhyphenated format used for the same reference identified as 6J-4003 in Caterpillar equipment parts catalogs and application data.

Specifications

• Part type: Piston wear ring
• Category: Piston Ring Sets
• Application: Caterpillar equipment listed in the fitment section
• Inner diameter, B: 3.99 in, tolerance ±0.08 in
• Width, A: 1.25 in, tolerance ±0.03 in
• Outside diameter: 4.25 in
• Weight: 0.4 lb
• Length: 15.24 cm
• Width: 20.32 cm
• Depth: 2.54 cm