One New Aftermarket Replacement Piston Ring Set Fits John Deere 6404A/6404T Diesel Engines

This standard-bore piston ring set is a single-cylinder replacement for the Fits John Deere 6.404A and 6.404T diesel engines found in a wide range of Fits John Deere tractors, combines, harvesters, and construction equipment. Each set includes two Keystone Torsional Chrome compression rings and one chromed cast iron oil ring with coiled spring expander, providing durable cylinder sealing and oil control during engine rebuild or overhaul.

Specifications

• Ring Size: Standard
• Bore Diameter: 4.250"
• Coverage: (1) One Cylinder
• Compression Rings per Piston: (2) at .156" - Keystone Torsional Chrome, 15 Degree
• Top Groove Size: .156" | Style: Keystone Torsional Chrome 15 Degree
• 2nd Groove Size: .156" | Style: Keystone Torsional Chrome 15 Degree
• Oil Ring per Piston: (1) at .188" - Chromed Cast Iron with Coiled Spring Expander
• 3rd Groove Size: .188" | Style: Chromed Cast Iron Oil / Coiled Spring

Compatible Models

Fits John Deere Tractors: 4320, 4430, 4520, 4620, 4630, 7020

Fits John Deere Combines: 6600, 6602, 7700

Fits John Deere Harvesters/Forage Harvesters: 5200, 5400, 5440, 5460

Fits John Deere Construction and Industrial: 644A, 646, 646B, 690, 690A, 690B, 693B, 740

Fits John Deere Engines: 6404A, 6404T

Replaces Part Number(s):

AR51741

New aftermarket replacement part - not remanufactured, not used.