Line Brake
| Machine | Model | Years / S/N |
|---|---|---|
| Tractor | 570MXT | — |
| Tractor | U80B | — |
| Tractor | U80 | — |
| Tractor | LV80 | — |
| Backhoe | 590SM | — |
| Backhoe | 580L | — |
| Backhoe | 580SL | — |
| Backhoe | 590SL | — |
OEM Line Brake Lh Brake Left-Hand Replaces: P/N 276743A1 #309978A1 - OEM Hydraulic Hose Replacement for Case Construction Equipment Repair This OEM part is intended for maintenance replacement in situations involving hydraulic leaks, pressure loss, and cracked or worn fluid lines, including symptoms like burst hose risk, worn outer cover, pressure drop, and oil leakage. Targeted to service work involving OEM hydraulic hose replacement, hydraulic leak repair, fluid line service, and pressure-loss maintenance on Case equipment.
More Details
Part Number: 309978A1
Application: Typical repair use: Hydraulic hose or line replacement used to repair leaks, pressure loss, abrasion damage, cracked tubing, and fluid-transfer failures.
Key Features:
- OEM replacement for leaking, cracked, or abrasion-damaged hydraulic lines
- Helps restore fluid containment, pressure retention, and dependable hydraulic flow
- Direct-fit hose or tube service part for repair and maintenance installation
Fits Case Models: Compatible with various Case construction equipment models - verify fitment before ordering
Replaces: Refer to manufacturer cross-reference if applicable
WARNING:For California residents — Cancer and Reproductive Harm. www.P65Warnings.ca.gov
- Manufacturer part number
- 309978A1
- Brand
- Case Construction
- Condition
- OEM, new
- Category
- Braking System
- Weight
- 0.35 lb
Ships nationwide. In-stock parts ordered before 2:30 PM ET ship the same business day. Your exact shipping cost and delivery estimate are calculated at checkout from your ZIP code and the part’s size and weight; oversized and truck-freight items may need extra transit time and freight charges.
Free branch pickup is also available across Ohio, Indiana, Michigan, and Kentucky — just choose it at checkout.
30-day returns. New, unused parts in original packaging may be returned within 30 days. Some items — including electrical, special-order, and direct-from-supplier parts — are non-returnable. See our full return policy.