Generally, warranty for parts purchased on Parts.Cat.Com is 12 months from the invoice date as defined in the Caterpillar Limited Warranty. Parts Warranty covers defects in material and workmanship throughout the Warranty period once it has been installed. For complete Warranty detail contact your local Cat Dealer.
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Return Policy
Return Policy Information
Unless otherwise noted by a non-returnable part
icon, most parts can be returned to your authorized Cat® dealer under their return policy.
Need More Help? Contact Us
Find a DealerEmail
Warranty Information
Warranty Information
Generally, warranty for parts purchased on Parts.Cat.Com is 12 months from the invoice date as defined in the Caterpillar Limited Warranty. Parts Warranty covers defects in material and workmanship throughout the Warranty period once it has been installed. For complete Warranty detail contact your local Cat Dealer.
Need More Help? Contact Us
Find a DealerEmail
Return Policy
Return Policy Information
Unless otherwise noted by a non-returnable part
icon, most parts can be returned to your authorized Cat® dealer under their return policy.
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
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Parts diagram for 171-4358
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Description for part number 171-4358
Description: O-Rings are used in static sealing and some dynamic applications.
Attributes: Cat® O-Rings are made from materials that are matched to the fluids, temperatures and pressures found in Cat engines and machines. The materials resist wear and extrusion, and provide superior resistance to seal compression set. In addition, certain Cat O-Rings are coated with PTFE to minimize seal twisting and cutting during seal installation.
Dimensions of our O-Rings are consistently held to tight tolerances to ensure they fit properly into seal grooves with the necessary seal compression.
With over 2500 O-Rings in different sizes and materials, Cat O-Rings are your best solution for your Cat and other mobile equipment O-Ring needs.
Cat Sealing systems protect more expensive parts from leaks and contamination. Protect your investment with Genuine Cat Seals.
Applications: O-Rings are used in many static and dynamic joints throughout Cat machines and engines.
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Warning:This product can expose you to chemicals including Carbon black (airborne, unbound particles of respirable size), which is known to the State of California to cause cancer, and Perfluorooctanoic acid (PFOA), which is known to the State of California to cause birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.
Material Description: EPDM rubber is capable of service temperatures of -55 to 121C and is resistant to air, water and glycol based fluids such as engine coolant and diesel exhaust fluid. EPDM rubber is not recommended in applications that require resistance to fuel oils, gasoline, diesel fuel and lubricants.
Notes: Dimensions and material descriptions provided for reference only.
Polymer: EPDM (Ethylene-propylene diene)
Applications: Ebullient cooled engine cooling systems
Material Hardness: 70A
Not Compatible With: Aromatic fuels; Diester lubricants; Petroleum fluids
Compatible With: Alcohols; Automotive brake fluids; Hot, cold water; Ketones; Ozone and sunlight; Phosphate ester fluids; Silicone fluids; Some dilute acids; Steam (200 Degree C max); Steam (400 Degree F max)
Dash Size: 329
Seal/O-Ring Type: Standard
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Compatible Models for part number 171-4358
GEN SET ENGINE
G3516B
WHEEL TRACTOR
637E 631E
POWER MODULE
PM3456
INDUSTRIAL ENGINE
C18 C15
LOCOMOTIVE ENGINE
C18
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DiagramDescriptionSpecificationsCompatible Models
Parts diagram for 171-4358
View Detailed Parts Diagrams
Add Your Equipment
Description for part number 171-4358
Description: O-Rings are used in static sealing and some dynamic applications.
Attributes: Cat® O-Rings are made from materials that are matched to the fluids, temperatures and pressures found in Cat engines and machines. The materials resist wear and extrusion, and provide superior resistance to seal compression set. In addition, certain Cat O-Rings are coated with PTFE to minimize seal twisting and cutting during seal installation.
Dimensions of our O-Rings are consistently held to tight tolerances to ensure they fit properly into seal grooves with the necessary seal compression.
With over 2500 O-Rings in different sizes and materials, Cat O-Rings are your best solution for your Cat and other mobile equipment O-Ring needs.
Cat Sealing systems protect more expensive parts from leaks and contamination. Protect your investment with Genuine Cat Seals.
Applications: O-Rings are used in many static and dynamic joints throughout Cat machines and engines.
View More
Warning:This product can expose you to chemicals including Carbon black (airborne, unbound particles of respirable size), which is known to the State of California to cause cancer, and Perfluorooctanoic acid (PFOA), which is known to the State of California to cause birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.
Material Description: EPDM rubber is capable of service temperatures of -55 to 121C and is resistant to air, water and glycol based fluids such as engine coolant and diesel exhaust fluid. EPDM rubber is not recommended in applications that require resistance to fuel oils, gasoline, diesel fuel and lubricants.
Notes: Dimensions and material descriptions provided for reference only.
Polymer: EPDM (Ethylene-propylene diene)
Applications: Ebullient cooled engine cooling systems
Material Hardness: 70A
Not Compatible With: Aromatic fuels; Diester lubricants; Petroleum fluids
Compatible With: Alcohols; Automotive brake fluids; Hot, cold water; Ketones; Ozone and sunlight; Phosphate ester fluids; Silicone fluids; Some dilute acids; Steam (200 Degree C max); Steam (400 Degree F max)
