100557 A1 PLUG - DRAIN ( GENUINE )

The 100557A1 Drain Plug is a genuine CNH original axle housing drain plug, designed for use in the axle housing assembly of Case 580 series backhoe loaders. This component is identified as Item No. 5 in the axle assembly diagram.

The drain plug is used to seal the axle housing drain port, allowing controlled draining of axle oil during routine maintenance, inspection, or overhaul. It ensures a secure, leak-free seal to maintain correct oil level and protect internal axle components from contamination.

Manufactured to OEM specifications, the 100557A1 drain plug provides precise thread fitment, excellent sealing performance, and durability suitable for heavy-duty construction and industrial operating environments.

Key Specifications

• Part Number: 100557A1

• Component Type: Axle Housing Drain Plug

• Application Area: Axle housing

• Diagram Reference: Item No. 5

• Material: High-strength steel

• Fitment: OEM direct replacement

Functions & Benefits

• Seals the axle housing drain port securely

• Prevents oil leakage from the axle assembly

• Allows safe and controlled draining during service

• Helps maintain correct axle oil level

• OEM-quality fit ensures no modification required

Compatible Models

• Case 580 L

• Case 580 Super L

• Case 580 L Series 2

• Case 580 M

• Case 580 Super M

• Case 580 M Series 2

• Case 580 M Series 3

• Case 580 Super M Series 2

• Case 580 Super M Series 3

• Case 580 N

• Case 580 Super N

Brand: CNH Original (Genuine)

How to Identify a Faulty Axle Drain Plug

A worn or damaged axle housing drain plug may cause the following symptoms:

Common Symptoms

• Oil leakage around the axle housing drain area

• Damaged or stripped plug threads

• Plug cannot be tightened securely

• Oil seepage after axle service

When Replacement Is Required

• Threads are worn, damaged, or rounded

• Plug head is damaged or deformed

• Oil leakage persists even after tightening

• During axle service or overhaul

 Note: A damaged drain plug can lead to oil loss and axle damage. Replacement is recommended during maintenance if any defect is found.
 

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• Case 580 L

• Case 580 Super L

• Case 580 L Series 2

• Case 580 M

• Case 580 Super M

• Case 580 M Series 2

• Case 580 M Series 3

• Case 580 Super M Series 2

• Case 580 Super M Series 3

• Case 580 N

• Case 580 Super N

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