J 912883 (HSA) Crankshaft Gear – Case 580 K – 4-390 / 4T-390 Engine Timing Gear

Product Description (English)

The J 912883 Crankshaft Gear (HSA) is a high-quality timing gear designed for the 4-390 / 4T-390 engine used in the Case 580 K backhoe. This gear plays a critical role in controlling engine timing by transferring rotation from the crankshaft to the camshaft and other internal components.

Compatible Model:

• Case 580 K
  (4-390 / 4T-390 Engine)

Manufactured with durable HSA-grade steel, this crankshaft gear provides excellent strength, precise gear engagement, and long-lasting performance for engine rebuilding and timing repair work.

Key Features:

• High-strength HSA crankshaft timing gear

• Designed for 4-390 / 4T-390 engine

• Ensures accurate and stable engine timing

• Precision-machined gear teeth for smooth rotation

• Ideal for engine overhaul and timing system repair

产品说明（中文）

**J 912883 曲轴齿轮（HSA）**专为 Case 580 K 所使用的 4-390 / 4T-390 引擎设计，是发动机正时系统中非常重要的组件，用于将曲轴动力准确传递至凸轮轴和其他内部机构。

适用型号：

• Case 580 K
  （4-390 / 4T-390 引擎）

采用 HSA 高强度钢材制造，齿形精密、耐磨损，适合用于发动机大修与正时系统维护。

产品特点：

• HSA 高强度曲轴正时齿轮

• 适用于 4-390 / 4T-390 引擎

• 确保正时准确、运转顺畅

• 精密齿形、耐用可靠

• 适合发动机维修与正时系统重建