Filter O-Ring Seal for Case IH 1620, 1640, 1660, 1670, 1680 Combines

Description

You’re changing your hydraulic filter and notice the old O-ring is cracked or pinched—that’s a problem waiting to happen. This Buna-N compound maintains its flexibility and sealing ability even after thousands of pressure cycles and tough conditions like heat cycles, chemical exposure from fluids, and constant pressure changes. This replacement O-ring keeps your filter sealed tight so your combine’s hydraulic system stays clean and leak-free.

What You’re Getting

• Precision-sized 5-3/4″ outside diameter and 5-15/32″ inside diameter with 9/64″ thickness for exact fit
• 70 durometer rating provides the right balance of flexibility for sealing and firmness for durability
• Buna-N compound specifically chosen for hydraulic applications because it maintains its flexibility and sealing ability
• Quality construction that resists oil, hydraulic fluid, and the chemicals your equipment encounters

Built for Real Farm Work

This O-ring is designed specifically for the hydraulic filter system on Case IH 1620, 1640, 1660, 1670, and 1680 combines. These machines work long days in dusty fields, and their hydraulic systems power everything from the header lift to the cleaning system. A proper seal on your hydraulic filter keeps contaminants out and maintains the pressure your combine needs to keep running.

Made to Last

Combine hydraulic systems see high pressure, temperature swings, and constant use during harvest season. This Buna-N compound is specifically chosen for hydraulic applications because it maintains its flexibility and sealing ability even after thousands of pressure cycles. The material won’t crack in cold weather or get brittle from heat and hydraulic fluid exposure.

Installation Notes

Success starts with using the right size – both diameter and cross-section must match exactly. Clean sealing surfaces thoroughly and lubricate O-rings with compatible hydraulic fluid before installation to prevent rolling or tearing. This is a direct replacement that fits with the Baldwin PT268 filter—no modifications needed.