34312-00080 Crankshaft Rear Oil Seal for Caterpillar Excavators E320B E320C E320D S6K Engine

34312-00080 Crankshaft Rear Oil Seal – High-Quality Aftermarket Replacement for Caterpillar Engines

Prevent oil leaks at the rear crankshaft in your Caterpillar S6K engine with this premium aftermarket 34312-00080 crankshaft rear oil seal. Engineered as a direct OEM replacement, it provides reliable sealing to retain lubricant, block contaminants, and protect bearings in high-vibration heavy-duty applications.

Key Benefits for Contractors and Operators

• Prevents Costly Oil Leaks: Keeps lubricant in and dirt out, reducing bearing wear and avoiding expensive engine damage.
• Direct Fit Installation: Matches genuine Cat specs for quick, no-modification replacement – easy to install during engine service.
• Built Tough for Heavy Duty Use: High-grade material resists abrasion, heat, and pressure for long-lasting reliability on job sites.
• Cost-Effective Alternative: OEM-level sealing at aftermarket pricing – ideal for fleet maintenance and budget-conscious operations.
• Fast Shipping: In stock and ready to ship within 1-3 days.

Compatible Caterpillar Models

This crankshaft rear oil seal is commonly used in S6K engines for excavators including (verify your engine’s parts manual for exact fit):

• E320B
• E320C
• E320D
• E311B, E311C, E312B, E312C, E312D, E314C

Specifications

Questions? Contact us for fitment confirmation or bulk pricing. We stand behind our parts with fast shipping and easy returns.