245-6839 Hydraulic Cylinder Seal Kit for Caterpillar D8T, D8R, and D8GC
245-6839 is a hydraulic cylinder seal kit used in selected Caterpillar track-type tractors, mainly including Caterpillar D8T, Caterpillar D8R, D8R II, D8GC, and D8N. It is designed for hydraulic cylinder resealing during maintenance, helping reduce oil leakage and restore cylinder sealing performance.
What Is 245-6839 Used For?
245-6839 belongs to the hydraulic cylinder seal kit category. This type of kit is typically used when a hydraulic cylinder shows leakage, pressure loss, or reduced operating stability.
For repair shops and equipment owners, replacing worn seals during cylinder overhaul helps reduce downtime and avoid repeated disassembly.
Compatible Machine Models
Confirmed compatible models currently include:
- D8T
- D8R
- D8R II
- D8GC
- D8N
- D8
These models are listed in official compatibility references for 245-6839.
Why Part Number Search Matters in Hydraulic Repair
Many buyers search directly by part number because hydraulic seal kits often look similar externally.
Searching by exact number, such as 245-6839, helps:
- reduce ordering errors
- improve fit confirmation
- shorten procurement time
- simplify communication with suppliers
This is especially important for overseas distributors and repair workshops handling multiple machine brands.
When Customers Usually Replace 245-6839
Typical replacement situations include the following:
- hydraulic cylinder oil leakage
- cylinder pressure instability
- seal aging after long service hours
- scheduled cylinder overhaul
For maintenance buyers, seal kits are often ordered together with other hydraulic repair parts to reduce machine downtime.
Aftermarket Supply Considerations for Bulk Buyers
For distributors and service companies, buyers usually focus on:
- stable material quality
- complete seal kit configuration
- clear part number identification
- repeat supply availability
For aftermarket procurement, consistent packaging and part traceability are often more important than a low unit price.
