Full product description

<h2>Product Overview</h2><p>This Mercury water pump impeller kit is compatible with Mercury 9.9, 10, 15, and 20 HP 4-stroke outboards and references part number 8M0135821. It is a water pump repair component for Mercury outboard applications. The kit is intended for marine equipment maintenance where the listed engine rating and part number match.</p><h2>Key Features & Performance</h2><p>• Water pump impeller kit</p><p>• For Mercury outboard engines</p><p>• Compatible with listed 9.9, 10, 15, and 20 HP 4-stroke applications</p><p>• References part number 8M0135821</p><p>• Intended for water pump service and repair</p><h2>Fitment & Compatibility</h2><p>• For Mercury 9.9 HP 4-stroke outboards</p><p>• For Mercury 10 HP 4-stroke outboards</p><p>• For Mercury 15 HP 4-stroke outboards</p><p>• For Mercury 20 HP 4-stroke outboards</p><h2>Common Uses</h2><p>• Water pump maintenance on Mercury outboards</p><p>• Impeller replacement during outboard service</p><p>• Marine engine cooling-system repair applications</p><h2>Technical Specifications</h2><p>Product Type: Water pump impeller kit</p><p>Brand Compatibility: Mercury</p><p>Model Compatibility: 9.9, 10, 15, and 20 HP 4-stroke outboards</p><p>Part Number(s): 8M0135821</p><p>Application: Mercury outboard water pump repair</p><h2>Frequently Asked Questions</h2><p>Q: Which engines are listed for this water pump impeller kit? A: The title lists Mercury 9.9, 10, 15, and 20 HP 4-stroke outboards.</p><p>Q: How should fitment be verified? A: Compare part number 8M0135821 and the engine rating and type with the existing part and your Mercury outboard details before purchase.</p><p>Product appearance and specifications may vary slightly by batch. Compatibility may vary by serial number, model year, or existing part number. Verify fitment before purchase.</p>