High-Quality RE524453 Piston Ring Set for John Deere 4045 and 6068 Engines – Piston Ring Set Engine Parts

Proper piston ring function is essential for engine compression, oil control, and heat transfer. For the John Deere 4045 and 6068 engine families, the RE524453 piston ring set is a precision-engineered replacement component that restores factory performance during an overhaul. This ring set includes top compression ring, intermediate compression ring, and oil control rings, all manufactured to OEM specifications. Whether you are rebuilding a 4045 in a skid steer or a 6068 in a large tractor, this piston ring set ensures proper sealing, reduced blow-by, and long engine life.

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Engineered for John Deere 4045 and 6068 Engines

The John Deere 4045 is a 4-cylinder, 4.5L diesel engine, and the 6068 is a 6-cylinder, 6.8L diesel engine – both part of the PowerTech series. The RE524453 piston ring set is designed for these engines and features a top compression ring (often chrome or nitrided steel for wear resistance), an intermediate compression ring (cast iron or ductile iron with a tapered face), and a three-piece oil control ring assembly (two rails and an expander). These rings meet John Deere specifications for bore diameter (typically 106mm for 4045 and 106mm for 6068, but verify), ring gap, tension, and material.

Typical Specifications (Verify for your application):

• Bore Diameter: 106mm (4.17 inches) – typical for 4045/6068

• Ring Type: Top ring – keystone or rectangular, chrome or PVD coated

• Second ring: Tapered or napier cast iron

• Oil ring: 3-piece (two rings + expander)

Compatibility: John Deere Engine Models

This piston ring set is compatible with the following engine families (verify ring size and configuration for your specific engine):

• John Deere 4045 (4.5L, 4-cylinder):
  4045HF285, 4045TF270, 4045HF275, 4045HF280, 4045T270, 4045AFM85, 4045DF150, 4045EF150, 4045HLT01, 4045HLT02, 4045HRT01, 4045HFE01, 4045TFE01

• John Deere 6068 (6.8L, 6-cylinder):
  6068HF285, 6068TF270, 6068HF280, 6068T270, 6068AFM85, 6068DF150, 6068EF150, 6068HLT01, 6068HLT02, 6068HRT01, 6068HFE01

Compatible John Deere Equipment – Detailed Model List:

• Agricultural Tractors (4045):
  5075E, 5085E, 5090E, 5090EL, 5100E, 5100EL, 5115M, 6110M, 6120M, 6130M, 6140M, 6150M, 6170M, 6190M, 6210M

• Agricultural Tractors (6068):
  7130M, 7140M, 7150M, 7210M, 7230M, 7250M, 7270M, 7290M, 7310M, 7330M, 7350M, 7410M, 7430M, 7450M, 7470M, 7490M, 7510M, 7530M, 7550M, 7570M, 7590M, 7610M, 7630M, 7650M, 7670M, 7690M, 7710M, 7730M, 7750M, 7770M, 7790M, 7810M, 7830M, 7850M, 7870M, 7890M

• Skid Steers & Compact Track Loaders (4045):
  316GR, 318G, 320G, 323G, 325G, 326G, 328G, 329G, 330G, 331G, 332G, 333G, 334G

• Backhoe Loaders (4045):
  310L, 310SL, 410L, 410SL

• Wheel Loaders (4045 & 6068):
  444K, 524K, 544K, 624K, 724K, 744K, 824K, 844K

• Motor Graders (4045 & 6068):
  4045R, 672G, 672GP, 772G, 772GP, 872G, 872GP

• Articulated Dump Trucks (6068):
  250D, 260D, 370D, 410D

• Industrial & Generator Sets:
  John Deere 4045 and 6068 power units, generator drive engines (45-200 kW range), irrigation pumps, compressors, crushers

What’s Included in the RE524453 Piston Ring Set?

A typical complete piston ring set includes (for one piston):

• Top compression ring (chrome or steel)

• Second compression ring (cast iron or ductile iron)

• Oil ring assembly (3-piece: two rails + expander)

Important: This set is for a single piston. For a full engine rebuild, order one set per cylinder (4 sets for 4045, 6 sets for 6068).

Why Choose This Piston Ring Set?

1. OEM Specifications: Meets John Deere requirements for ring gap (typically 0.35-0.55mm for top ring), side clearance, and tension.

2. Durable Materials: Top ring often features chrome or PVD coating for wear resistance; oil rings are stainless steel for corrosion protection.

3. Proper Seal: Reduces blow-by, oil consumption, and increases compression.

4. Cost-Effective: Purchasing a complete set per piston is more economical than individual rings.

Signs You Need a New Piston Ring Set

• Excessive oil consumption (blue smoke from exhaust)

• Loss of compression (hard starting, poor power)

• Blow-by gases from crankcase breather

• Oil fouling of spark plugs (on gas engines) or injector coking (diesel)

• Low cylinder pressure during compression test

• High oil consumption without external leaks

Installation Recommendations (Summary)

• Hone the cylinder bore to create a proper crosshatch pattern for ring seating.

• Check ring end gap in the cylinder bore (file-fit if necessary).

• Install rings on piston using proper ring expander pliers – avoid scratching piston.

• Stagger ring gaps as per John Deere specification (typically 120° apart, not aligned with piston pin or thrust side).

• Lubricate rings and cylinder wall with clean engine oil before installation.

• Use a ring compressor to install piston into cylinder.

Conclusion

The RE524453 piston ring set for John Deere 4045 and 6068 engines is a critical component for any engine rebuild. Whether you are overhauling a 6190M tractor, a 333G skid steer, a 544K wheel loader, or a 260D articulated truck, this high-quality ring set ensures proper compression and oil control.

Order your RE524453 piston ring sets today and restore your John Deere engine’s performance.