WSM Complete 159mm Jet Pump Assembly for Sea-Doo 1503 4-Tec 2004-2009 – Full Pump with Wear Ring, Cone, Shaft, Bearings & Seals – 003-721K

WSM Complete 159mm Jet Pump Assembly for Sea-Doo 1503 4-Tec Models 2004-2009 – Part # 003-721K

Restore full performance to your Sea-Doo with this complete ready-to-install 159mm Jet Pump Assembly from WSM. This high-quality replacement pump is designed for 2004–2009 Sea-Doo models equipped with the 1503 4-Tec engine (including naturally aspirated and supercharged versions up to 430 HP).

The WSM 003-721K comes fully assembled with all critical components, making it a convenient and reliable solution when your original jet pump is worn, damaged, or leaking. It helps eliminate vibration, restore lost top speed, improve acceleration, and deliver smooth, consistent thrust.

What’s Included in the 003-721K Kit:

• Complete 159mm Jet Pump Housing
• Wear Ring
• Pump Cone
• Impeller Shaft
• High-quality Bearings
• Seals

Note: This is a 159mm inner diameter jet pump assembly. It is designed for Sea-Doo 1503-powered boats and personal watercraft from 2004–2009.

Key Features & Benefits

• Fully assembled 159mm jet pump – ready to bolt in
• Direct replacement for worn or damaged factory pumps
• Includes wear ring, cone, shaft, bearings, and seals for a complete repair
• Improves acceleration, top speed, and overall handling
• Built to withstand high horsepower and harsh marine conditions
• Excellent value compared to OEM jet pump assemblies

Vehicle Fitment (2004–2009 Sea-Doo 1503 4-Tec Models)

This WSM jet pump assembly fits a wide range of Sea-Doo models, including:

• GTX Series: GTX 215, GTX LTD 215, GTX LTD SCIC, GTX SCIC
• RXT Series: RXT 1503, RXT SCIC, RXT X 255
• RXP Series: RXP 1503, RXP S/C, RXP X 255, RXP 155 S/C, RXP BVIC
• Challenger Series: Challenger SE 215/255/430, Challenger S/C 215, Challenger Wake 430, Challenger SP 215, Challenger Wake S/C 215
• Speedster Series: Speedster 200/215/255/430, Speedster Wake 215/430, Speedster Wake S/C 215
• Wake Series: Wake 215/255
• Utopia / Islandia: Utopia SE 215/430, Islandia SE 215/430
• Sportster S/C 215

Important: This assembly is specifically for 2004–2009 models with the 1503 engine and 159mm pump diameter. Always confirm your exact model/year and pump specifications before ordering.

If your Sea-Doo is showing signs of jet pump issues — such as vibration, reduced top speed, poor acceleration, or water entering the hull — this complete WSM 159mm jet pump assembly is an ideal solution. It offers strong performance and durability at a fraction of the cost of OEM.