The head gasket in your engine's cylinder has the main job of keeping any combustion gases from getting into the cooling system. Head gasket located between the cylinder head and the engine block. When the head gasket breaks, coolant can leak into the combustion chamber and mix with the engine oil, causing significant damage to the engine. Sierra's 18-3804 Head Gasket is designed for use with Mercury/Mariner Model 30A engines (serial number code 689)The reliable HEAD GASKET (1) 18-3804 by Sierra prevents engine overheating.
Key Features
The exact fit minimizes the labor required for installation.
Designed for use with Mercury/Mariner Model 30A engines (serial number code 689)
Made to exceed OEM specifications in quality and performance
Replaces 689-11181-02, 689-11181-02-00, 689-W0001-A1, 689-W0001-A1-00, 47-3804, GLM33880, 27-84733M, 27-19138M, 3099931655, 30999316554, 9-63960, 92-33880
Perfect replacement parts that meet or exceed the original equipment specifications it replaces
One gasket per package
Specifications
BRAND: SEASTAR SOLUTIONS
SKU:18-3804
UPC: 030999316554
Weight:0.13 LBS
For: Model 30A (S/N code 689)
We can ship to virtually any address in the US. Note that there are restrictions on some products, and some products cannot be shipped to international destinations.
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You may return most new, unopened items within 30 days of delivery for a full refund. We'll also pay the return shipping costs if the return is a result of our error (you received an incorrect or defective item, etc.)
You should expect to receive your refund within four weeks of giving your package to the return shipper, however, in many cases you will receive a refund more quickly. This time period includes the transit time for us to receive your return from the shipper (5 to 10 business days), the time it takes us to process your return once we receive it (3 to 5 business days), and the time it takes your bank to process our refund request (5 to 10 business days).
If you need to return an item, please Contact Us with your order number and details about the product you would like to return. We will respond quickly with instructions for how to return items from your order.
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