Sierra 18-3207 Impeller Repair Kit - Replaces Mercury 47-89983T2, 47-89983Q1

The Sierra 18-3207 Impeller Repair Kit is a complete water pump rebuild kit designed to restore cooling system performance on applicable Mercury outboard engines. Rather than replacing a single worn component, this kit bundles the impeller and the gaskets needed to properly reseal the lower water pump housing during a rebuild, so the job can be completed in one pass without hunting down individual parts. Sierra engineers and manufactures its products to meet or exceed the quality of the original equipment part being replaced, and this kit is built to the same standard.

Inside the box, the kit includes a replacement impeller (Sierra 18-3007, O.E. 47-89983), two drain gaskets (Sierra 18-2945, O.E. 12-20260 and 12-19183), and a lower water pump base to face plate gasket (Sierra 18-2823). Together these components address the parts that typically need renewal whenever a water pump impeller is serviced, helping ensure a proper seal and reliable coolant flow after installation. The kit cross-references directly to Mercury part numbers 47-89983T2 and 47-89983Q1, making it a straightforward match for engines that call for those OEM numbers.

Specifications

• Brand: Sierra
• Manufacturer Part Number: 18-3207
• Product Type: Impeller Repair Kit
• UPC: 030999237187
• Weight: 0.14 pounds
• Product Dimensions: 8 x 5 x 2 inches
• Kit Contents: Impeller (18-3007), Drain Gasket x2 (18-2945), Lower Water Pump Base to Face Plate Gasket (18-2823)
• OEM Cross-Reference: 47-89983T2, 47-89983Q1

Fitment

• Designed for use with Mercury water pump applications calling for OEM numbers 47-89983T2 or 47-89983Q1.

Replaces (OEM)

• 47-89983T2
• 47-89983Q1

Frequently Asked Questions

What does the Sierra 18-3207 Impeller Repair Kit include? The 18-3207 kit includes an impeller (Sierra 18-3007, O.E. 47-89983), two drain gaskets (Sierra 18-2945, O.E. 12-20260 and 12-19183), and a lower water pump base to face plate gasket (Sierra 18-2823).

Which OEM part numbers does the 18-3207 kit replace? This kit replaces Mercury OEM numbers 47-89983T2 and 47-89983Q1.

Is a genuine impeller included, or just gaskets? Yes, the Sierra 18-3207 kit includes the actual impeller (part 18-3007, O.E. 47-89983) along with the gaskets needed to reseal the water pump during the same service.

How much does the 18-3207 Impeller Repair Kit weigh? The kit weighs 0.14 pounds.

What are the dimensions of the packaged kit? The Sierra 18-3207 kit measures 8 x 5 x 2 inches as packaged.

How many drain gaskets come in the kit? Two drain gaskets (Sierra 18-2945, O.E. 12-20260 and 12-19183) are included in the 18-3207 kit.

Does this kit meet original equipment quality standards? Sierra manufactures the 18-3207 kit to meet or exceed the quality of the original Mercury equipment it replaces.

What is the UPC for the Sierra 18-3207 kit? The UPC for this kit is 030999237187.

Is the lower water pump base to face plate gasket included? Yes, the Sierra 18-2823 lower water pump base to face plate gasket is included in the 18-3207 kit.

Can this kit be used for a complete water pump service? The 18-3207 kit provides the impeller and gaskets commonly needed when servicing the lower water pump assembly on applicable Mercury engines.