Other Piston Components

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Factory Fit

This part is designed to fit your Cat equipment based on the manufacturer’s specifications.

Any changes to the manufacturer’s configuration might result in the product not fitting your Cat equipment. Please consult your Cat Dealer before purchasing to ensure that this part is appropriate for your Cat equipment in its current condition and assumed configuration. This indicator cannot guarantee compatibility for all parts.

Remanufactured

Non-Returnable

Kit

Replaced

Remanufactured

Non-Returnable

Kit

Replaced

Piston Rings

Heat treatment and proper fit ensure long life and less wear

Heat treatment provides maximum hardness, which extends life

Rings fit precisely into piston ring grooves, reducing ring band wear

Plasma-coated top ring

Caterpillar randomly tests competitive parts to determine quality differences. These comparisons consistently reveal the following shortcomings about competitive pistons and rings:

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Factory Fit

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To find the parts that fit.

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To find the parts that fit.

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Factory Fit

Specifications

Bolt Length (in)

Bolt Type

Class or Grade

Coating

Cross Section Diameter (in)

Diameter (in)

Height (in)

Inside Diameter (in)

Length (in)

Outer Diameter (in)

Outside Diameter (in)

Overall Length (in)

Overall Width (in)

Pin Diameter (in)

Pin Type

Rod Diameter (in)

Thickness (in)

Type

Width (in)

Pistons

Piston Rings

Competitive pistons

Competitive rings

107-7330: 144.45mm Outer Diameter Connecting Rod Bearing

0R-9737: Cat® 3516 Reman Upgrade-to-New (UTN) Crankshaft

227-2902: 228.40mm Outside Diameter Connecting Rod Bearing

0R-9739: Cat® 3512B Reman Upgrade-to-New (UTN) Crankshaft

149-6031: 171.15mm OD Needle Roller Thrust Bearing

556-0701: Cylinder Liner

7N-2405: 9/16-18 Thread 124mm Long Bolt

0R-9738: Cat® 3516B Reman Upgrade-to-New (UTN) Crankshaft

7C-6209: 11.8mm Thick Crankshaft Thrust Plate

317-8766: 131.29mm OD Steel Backed Copper Lead Main Bearing

129-4054: 268mm Outer Diameter Crankshaft Bearing

144-0725: 380mm Center Distance Connecting Rod

230-2520: Steel Backed Aluminum Connecting Rod Bearing

253-1752: 5.73mm Thick Crankshaft Thrust Plate

261-3450: 104.50mm Outer Diameter Connecting Rod Bearing

566-5490: 300mm Outer Diameter Intermediate Piston Ring

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Specifications

Bolt Length (in)

Bolt Type

Class or Grade

Coating