New OEM Genuine Caterpillar, Diode A - Part # 4W2187

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All parts in our OEM collections are guaranteed to be genuine, original factory products unless clearly stated otherwise. Each item is available at publication with at least one unit in stock.

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Our diverse collection spans over 850,000 products, all genuine and in stock. This includes everything from simple screws to complex components such as wire harnesses, hoses, trim, and body panels.

Assurance in Quality

Every product in our inventory is a brand-new, authentic OEM component, sourced directly from the original equipment manufacturer. Most items arrive in their original sealed packaging, ensuring their authenticity and quality.

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