The hydraulic boom seal kits offer reliable sealing to prevent leaks and enhance the performance of hydraulic systems. Designed for heavy machinery, these kits provide long-lasting durability and ensure optimal efficiency in tough work environments.
The 3981893 hydraulic boom seal kit is an aftermarket replacement sealing solution designed for excavators, track feller bunchers, and hydraulic power units. It helps restore cylinder sealing performance, reduce oil leakage, and maintain stable hydraulic pressure during continuous heavy-duty operation.
This seal kit is suitable for multiple CAT-compatible models, including 324D, 325C, 325D, 329D, 329E, 541, 551, 552, 1390, 2590, 521B, and 522B. With optional seal brands such as NOK, SKF, CFW, HALLITE, HRDA, and JSP, it supports flexible maintenance needs.
For hydraulic cylinders suffering from leakage, pressure loss, or reduced working efficiency, the 3981893 seal kit provides a practical replacement solution. It helps extend cylinder service life, lower maintenance costs, and keep excavators and forestry machines operating reliably in tough environments.
| Kits Number | Rod x Bore | Kits Number | Rod x Bore | Kits Number | Rod x Bore |
| 0860174 | 75*100 | 1261887 | 90*130 | 1697826 | 75*110 |
| 0919842 | 45*90 | 1261937 | 85*120 | 1697827 | 60*90 |
* All manufacturer's names, part numbers, and descriptions are used for reference purposes only. We do not imply that any part shown is the product of these manufacturers.
We ship worldwide via DHL, FedEx, UPS, TNT, and EMS for small orders, and by sea freight for bulk orders. Standard delivery time is 5–7 working days for small orders and 15–30 days for sea freight.
All products are carefully packaged in neutral packaging with foam protection to prevent damage during transit. Custom packaging with your branding is available for OEM orders.
We accept multiple payment methods for your convenience. For new customers, we typically require 100% advance payment for small orders. For established partnerships, we offer flexible terms including 30% deposit with balance before shipping.
