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  • 1994-95 Honda CB1000 Genuine Honda Thermostat ~ OEM 19300-MG9-000 / 19300-MZ0-003
Honda CB1000 Honda thermostat 19300-MG9-000
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60-day returnsEligible unused parts Free ground shippingUSA & Canada over $50
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Honda CB1000 Honda thermostat 19300-MG9-000

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1994-95 Honda CB1000 Genuine Honda Thermostat ~ OEM 19300-MG9-000 / 19300-MZ0-003

99-5080
$74.95 USD
In stock Usually ships the same or next business day
Check model fitment View fitment
Questions about this part? Contact us 4.8/5 1,330 store reviews
Secure checkoutProtected payment
60-day returnsEligible unused parts Free ground shippingUSA & Canada over $50
Browse all parts
1994-95 Honda CB1000 Genuine Honda Thermostat ~ OEM 19300-MG9-000 / 19300-MZ0-003
$74.95 USD
Description

Upgrade or restore your classic Honda motorcycle cooling system with this Genuine Honda Thermostat — precision‑engineered and quality made in Japan. This authentic replacement fits and replaces OEM #19300‑MG9‑000 and #19300‑MZ0‑003, helping maintain proper engine operating temperature and efficient cooling. Whether you’re repairing worn cooling components or completing a restoration project, trust genuine Honda parts for reliable performance and accurate factory‑fit functionality.

Key Features
• Genuine Honda OEM thermostat — replaces 19300‑MG9‑000 and 19300‑MZ0‑003
• Helps regulate engine temperature for optimal performance
• Precision‑engineered to Honda specifications
• Quality made in Japan for durability and long service life
• Our Part Number: 99‑5080

Fitment / Compatibility
• CB1000R (1994)
• CB1000S (1995)

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Check the listed model and year, then read any fitment notes in the description.

Make Model Year
Honda CB1000R 1994
Honda CB1000S 1995

Free ground shipping over $50

To the USA & Canada. In-stock orders usually ship from our own warehouse the same or next business day.

Estimated ground delivery after your order ships
DestinationDelivery time
USA4–7 business days
Canada2–6 business days

Ground shipping includes tracking, emailed when your order ships. Need it sooner? Express options are available at checkout.

See full shipping details

60-day returns on eligible parts

No restocking fees. Eligible parts must be unused, uninstalled, unaltered and complete. The 60-day window starts when your order is delivered.

Electrical parts are excluded from standard returns. Check return eligibility.

Start your return below. Wait for our instructions before mailing a part back.

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Other shipping options

Canada Post Economy: Available at checkout for select small items. Allow 1–3 weeks for delivery. No tracking or insurance is included.

Outside the USA & Canada: Delivery times vary by destination and shipping method. Buyers are responsible for applicable duties, taxes and import fees. We cannot mark orders as gifts.

Frequently Asked Questions

What is included with Honda thermostat 19300-MG9-000 / 19300-MZ0-003?

One genuine Honda thermostat replacing OEM 19300-MG9-000 and 19300-MZ0-003 is included for the 1994-1995 CB1000. The housing seal or O-ring is not included.

Should the thermostat seal be replaced at the same time?

Inspect the housing seal or O-ring and replace it with the correct part if flattened, hardened or damaged. Do not substitute sealant where Honda specifies a formed seal.

What cooling-system work follows thermostat replacement?

Refill with the specified coolant mixture, bleed trapped air by the Honda procedure, inspect for leaks and confirm normal warm-up and fan operation. Never open a hot pressurized cooling system.

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