Caterpillar

Add Equipment

Select equipment to view parts that fit your equipment.
No Suggested Results

Select Store

Caterpillar

Add Equipment

To find the parts that fit.To find the parts that fit.
Search for part number or name

Select Store

Add Equipment

HomeHardware, Seals, & ConsumablesSeals, Gaskets, & O-RingsO-Rings270-6438: 5.7 x 66.6mm 75A NBR O-Ring
HomeHardware, Seals, & ConsumablesSeals, Gaskets, & O-RingsO-Rings270-6438: 5.7 x 66.6mm 75A NBR O-Ring
270-6438: 5.7 x 66.6mm 75A NBR O-Ring

O-Ring

Brand: Cat

Product Images
270-6438: 5.7 x 66.6mm 75A NBR O-Ring
270-6438: 5.7 x 66.6mm 75A NBR O-Ring
270-6438: 5.7 x 66.6mm 75A NBR O-Ring
270-6438: 5.7 x 66.6mm 75A NBR O-Ring
270-6438: 5.7 x 66.6mm 75A NBR O-Ring

O-Ring

Brand: Cat

Warranty Information
Return Policy
DiagramDescriptionSpecificationsCompatible Models
Specifications for part number 270-6438

Units of Measure

USMetric
Cross Section Diameter (mm): 5.7
Cross Section Diameter (in): 0.224
Inside Diameter (mm): 66.6
Inside Diameter (in): 2.622
Material: NBR (75),NBR - Nitrile,NBR (Nitrile butadiene),Nitrile / NBR / HNBR / XNBR Rubber
Polymer: Nbr (nitrile Butadiene)
Material Hardness: 75a
View More
Compatible Models for part number 270-6438

MINI HYD EXCAVATOR

303ECR 304E2 CR 303E CR 304E 303.5E2 CR 303.5E

View More
KeyKey
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