Cummins 5.9 Piston Rings

Cummins 5.9 Piston Rings

We carry piston ring sets for Cummins 3.9 and 5.9 liter engines. For your convenience, you can access our inventory through the product links listed below.
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Product Details

Cummins 5.9 Piston Rings Cummins B Series Piston Ring Set | 4BT 3.9 | 6BT 5.9

We carry piston ring sets for Cummins 3.9 and 5.9 liter engines. For your convenience, you can access our inventory through the product links listed below.

A piston ring is a metallic split ring that is attached to the outer diameter of a piston in an internal combustion engine or steam engine.

The main functions of piston rings in engines are:

  1. Sealing the combustion chamber so that there is minimal loss of gases to the crank case.

  2. Improving heat transfer from the piston to the cylinder wall.

  3. Maintaining the proper quantity of the oil between the piston and the cylinder wall

  4. Regulating engine oil consumption by scraping oil from the cylinder walls back to the sump.

Most piston rings are made from cast iron or steel.

Piston Rings Achieve the chamber sealing, piston heat transfer, and oil consumption regulation you seek with high performance piston rings from Summit Racing.

Top compression rings (upper compression rings) control combustion chamber gases allowing the piston to transfer the energy of the expanding combustion gases, to the crankshaft. These rings also play a major role in the heat transfer process between the piston and cylinder wall.

Part No.

Part Name

Part No.

Part Name

3802050

6BT Piston Ring

3971297

ISDe Piston Ring

3802230

6BT Piston Ring

4955169

ISDe Piston Ring

3802421

6BT Piston Ring

4955641

ISDe Piston Ring

3802790

6BT Piston Ring

3948412

ISLe Piston Ring

3802831

6BT Piston Ring

4089644

ISLe Piston Ring

3802951

6BT Piston Ring

5297914

ISLe Piston Ring

3900286

6BT Piston Ring

5320276

ISLe Piston Ring

3902401

Cummins 6BT

3014149

NT855 Piston Ring

3902286

Cummins 6BT

3801755

NT855 Piston Ring

3903384

Cummins 6BT

3801056

NT855 Piston Ring

3904531

Cummins 6BT

3803358

NT855 Piston Ring

3918315

Cummins 6BT

3803471

NT855 Piston Ring

3938177

Cummins 6BT

3804500

Cummins NT855

3607358

6CT Piston Ring

4089488

Cummins NT855

3607359

6CT Piston Ring

4089810

Cummins NT855

3802258

6CT Piston Ring

4089811

Cummins NT855

3802429

6CT Piston Ring

4295801

Cummins NT855

3919918

6CT Piston Ring

4089500

KT19 Piston Ring

3922686

Cummins 6CT

4955976

KT19 Piston Ring

3992150

Cummins 6CT

3077354

ISM/QSM11 Piston Ring

4025290

Cummins 6CT

3102367

ISM/QSM11 Piston Ring

4089351

Cummins 6CT

3161808

ISM/QSM11 Piston Ring

3921919

6LT Piston Ring

3803705

ISM/QSM11 Piston Ring

3928294

6LT Piston Ring

3803977

ISM/QSM11 Piston Ring

3964073

6LT Piston Ring

3893752

ISM/QSM11 Piston Ring

As for driving it with bad rings... The only thing it's going to do is smoke and possibly score up the cylinder walls bad enough to where you have to over bore your sleeves.


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