159-7782 Swivel Joint Seal for Caterpillar Excavators 320D 330D 336D 349D

159-7782 Swivel Joint Seal – High-Quality Aftermarket Replacement for Caterpillar Excavators

Ensure leak-free rotation in your Caterpillar excavator’s swivel joint with this premium aftermarket 159-7782 swivel joint seal. Engineered as a direct OEM replacement, it provides reliable sealing in the center joint, preventing hydraulic fluid leaks and contamination for smooth upper structure rotation in demanding digging conditions.

Key Benefits for Contractors and Operators

• Prevents Hydraulic Leaks: Durable seal maintains pressure in the swivel joint, reducing fluid loss and contamination for safe, efficient operation.
• Direct Fit Installation: Matches genuine Cat specs for quick, no-modification replacement – minimize downtime during center joint maintenance.
• Built Tough for Heavy Duty Use: High-grade material resists pressure, wear, and harsh conditions for longer service life.
• Cost-Effective Alternative: OEM-level performance 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 swivel joint seal is commonly used in center joint assemblies for models including (verify your machine’s parts manual for exact fit):

• 311B, 311C, 311D LRR, 311F LRR
• 312B, 312B L, 312C, 312C L, 312D, 312D L, 312D2, 312D2 GC, 312D2 L, 312E, 312E L
• 313B, 313D, 313D2, 313D2 LGP
• 314C, 314D CR, 314D LCR, 314E CR, 314E LCR
• 315B L, 315C, 315D L
• 316E L
• 317B LN
• 318B, 318C, 318D L, 318D2 L, 318E L
• 319C, 319D, 319D L, 319D LN
• 320B, 320C, 320C FM, 320C L
• 320D, 320D FM, 320D FM RR, 320D GC, 320D L, 320D LN, 320D LRR, 320D RR
• 320D2, 320D2 GC, 320D2 L
• 320E, 320E L, 320E LN, 320E LRR, 320E RR
• 321C, 321D LCR
• 322B, 322B L, 322B LN, 322C, 322C FM
• 323D L, 323D LN, 323D SA, 323D2 L, 323E L
• 324D, 324D FM, 324D FM LL, 324D L, 324D LN
• 324E, 324E L, 324E LN
• 325B, 325B L
• 325C, 325C FM
• 325D, 325D FM, 325D FM LL, 325D L, 325D MH
• 326D L
• 328D LCR
• 329D, 329D L, 329D LN
• 329E, 329E L, 329E LN
• 330B, 330B L
• 330C, 330C FM, 330C L, 330C MH
• 330D, 330D FM, 330D L, 330D LN, 330D MH
• 336D, 336D L, 336D LN
• 336D2, 336D2 L
• 336E, 336E H, 336E L, 336E LH, 336E LN, 336F L
• 340D L, 340D2 L
• 345B, 345B II
• 345B L I MH
• 345B L
• 345C, 345C L, 345C MH
• 345D, 345D L, 345D L VG
• 349D, 349D L
• 349E, 349E L, 349E L VG, 349F L
• 568 FM LL
• Logger: 322C
• Mobile Hyd Power Unit: 323D L, 324D LN, 325D, 325D L, 329D L, 329E, 330C, 330D, 330D L, 336D L, 345C L
• Shovel Logger: 345C
• Undercarriage: OEMS
• Wheeled Excavator: W330B, W345B II, W345C MH

Specifications

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