2001-04 Honda GL1800 Radiator Cap ~ Genuine Honda 19045-MZ1-621

Name: 2001-04 Honda GL1800 Radiator Cap ~ Genuine Honda 19045-MZ1-621
Brand: Goldwingparts.com
SKU: 99-5475
Price: 59.95 USD
Availability: InStock

PART #: 99-5475

$59.95

In stock Available to order

Fits select Honda Gold Wing models View complete fitment below ↓

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Product Description

Radiator Cap - Genuine Honda 19045-MZ1-621. This radiator cap seals and pressurizes the cooling system at its rated pressure so coolant can circulate without boiling over prematurely.

Fitment / Compatibility

Fits Honda:

Honda GL1800 (2001-04)

Product Details

Use area: Cooling system.
OEM/reference number: 19045-MZ1-621.

Before Ordering

Confirm component location, hoses, connectors, and mounting.
Check coolant level and leaks after service.

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We focus exclusively on the Honda Gold Wing lineup, supporting classic touring models like the GL1000, GL1100, and GL1200, as well as modern favorites including the GL1500 and GL1800. Whether you're restoring a vintage Gold Wing or maintaining a long-distance touring motorcycle, we’re continually expanding our inventory to better serve riders across every generation.

From engine components and carburetor parts to electrical systems, suspension, brakes, body panels, lighting, and touring accessories, our catalog is built specifically around the needs of Gold Wing owners. We understand that reliability, comfort, and performance matter when you’re putting serious miles on your bike.

We’re riders serving riders — committed to dependable parts, competitive pricing, and fast, reliable shipping to keep your Honda Gold Wing on the road where it belongs.

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