Johnson 09-707B-1 Impeller Service Kit – Malibu & Axis M5/M6 Sherwood Pump

Keep your boat engine running cool with the Johnson 09-707B-1 Impeller Service Kit, designed for 2018–mid-2021 Malibu Boats and Axis Wake M5Di and M6Di engines equipped with Sherwood raw water pumps. This replacement marine water pump impeller provides a dependable alternative to the original Sherwood impellers, helping maintain proper cooling water circulation and reduce the risk of engine overheating.

Manufactured by Johnson Pump, this service kit features a durable 12-blade MC97 compound impeller with a key-slotted shaft connection. Designed for compatible Sherwood G1500-series pumps, it includes essential components for routine impeller replacement. Ideal for seasonal boat maintenance, winterization, and servicing Malibu or Axis inboard marine engines.

Key Features:

• Replacement impeller service kit for select Malibu M5Di and M6Di engines
• Designed for 2018–mid-2021 Malibu and Axis boats with Sherwood water pumps
• Compatible with Sherwood G1502 and G1503 series pumps
• Durable 12-blade MC97 compound impeller
• Key-slotted shaft connection for Sherwood pump applications
• Replacement option for Malibu E100090 and Sherwood 15000K
• Recommended replacement every 100 operating hours or annually

Product Specifications:

• Manufacturer: Johnson Pump
• Part Number: 09-707B-1
• Product Type: Raw Water Pump Impeller Service Kit
• Engine Compatibility: Malibu / Axis M5Di and M6Di with Sherwood Pumps
• Model Years: 2018–Mid-2021 (Sherwood-equipped applications)
• Pump Compatibility: Sherwood G1502, G1503, G1503-01, G1503-02, G1503-03
• Impeller Material: MC97 Compound
• Impeller Diameter: 2-9/16"
• Impeller Depth: 2"
• Number of Blades: 12
• Shaft Type: Key-Slotted
• Cross-Reference: Malibu E100090, Sherwood 15000K, SCP-15000K, Cummins 3349198, MerCruiser 47-855126

Kit Includes:

• 1 Replacement Impeller
• 1 O-Ring
• 1 Paper Gasket
• 4 Pump Cover Plate Screws
• Silicone Installation Lubricant
• Installation Instructions

Important Fitment Note: Malibu transitioned from Sherwood to Johnson raw water pumps during the 2021 model year. This key-slotted impeller is only compatible with the specified Sherwood pump applications. Verify your existing pump before ordering. The included paper gasket is not used on Malibu engine applications.

Maintenance Recommendation: Replace your impeller every 100 hours or annually, whichever comes first. The original Sherwood 15000K impeller is not recommended for these Malibu and Axis applications due to reported premature failures.