1T0550 Pin Spring Fits Caterpillar Models

One New Aftermarket Replacement Pin Spring for Caterpillar (Cat) Equipment

This aftermarket replacement Pin Spring (Caterpillar part 1T0550) is a small but essential fastening component used across a wide range of Caterpillar construction and engine-powered equipment. Pin springs secure and retain pins in assemblies throughout the machine, including flywheel housings and other drivetrain and structural connection points. This part interchanges with Caterpillar OEM numbers 4H1440 and 0950888.

Specifications

• Weight: 0.01 lbs.
• Part type: Spring pin (slotted/roll-type retaining pin)

Compatible Models

Caterpillar Motor Graders: 12F, 12G, 120G, 130G, 140G, 160G, 16G, 14G

Caterpillar Mining Trucks: 784B, 784C, 785, 785B, 785C, 785D, 789, 789B, 789C, 789D, 793, 793B, 793C, 793D, 793F

Caterpillar Pipelayers: 583K, 589

Caterpillar Off-Highway Trucks / Large Equipment: 65

Caterpillar Backhoe Loaders: 416, 426, 436, 446, 446B

Caterpillar Wheel Scrapers: 24H

Caterpillar Engines (Machine-Powered): 3508, 3508C, 3512, 3516

Note: 1T0550 fits a broad range of Cat equipment. Confirm your model and serial number before ordering.

Replaces Part Number(s):

1T0550

Aftermarket Interchange Numbers

4H1440, 4H-1440, 0950888, 095-0888

New aftermarket replacement part - not remanufactured, not used.