SWELL Wakesurf Creator Johnson F6B Impeller Replacement Kit 09-812BT MC97 Neoprene — Fits Indmar/Malibu/Axis 1996+

SWELL Wakesurf Creator Johnson 09-812BT is an OEM replacement impeller kit made from MC97 neoprene designed to fit most Indmar engines and Johnson F6B raw water pumps on Malibu, Axis and other boats from 1996 to present.

Keeping your boat's cooling system reliable starts with a correctly sized impeller. The 09-812BT impeller service kit from SWELL Wakesurf Creator is built to Johnson (SPX) OEM standards to match fit and flow specifications used across many Indmar-powered boats, including Malibu and Axis models, plus other brands that use the Johnson F6B pump. Regular replacement prevents overheating and reduces the chance of breakdowns while on the water.

Which engines and boats will this impeller fit?

This kit covers a wide range of Indmar engines and applications through model year updates. It fits virtually all Malibu boats with Indmar engines from 1996 onward and engines using the Johnson F6B raw water pump, including Axis Wake and compatible Volvo Penta installations.

• Direct OEM replacement for Indmar part numbers S685007 / 685007 and related cross-references.
• Works with Indmar Monsoon, Hammerhead, Raptor 6.2L families, and many Vortec/MerCruiser-derived marine blocks.
• Compatible with 2019–2022+ Malibu/Axis M5/M6 models if housing matches updated design.

What are the physical specs and materials of the impeller?

The impeller is manufactured from MC97 neoprene, chosen for a balance of flexibility and wear resistance suited to both fresh and closed cooling systems. Dimensions and splines match OEM Johnson F6 pump requirements so replacement is straightforward.

• Outer diameter: 57.1 mm (2.25 in).
• Width: 48.2 mm (1.90 in); splined inner bore to fit Johnson F6B shafts.
• Material: SPX Johnson MC97 neoprene for consistent flow and life span.

How often should I replace the impeller and what maintenance tips help avoid failures?

Manufacturers recommend servicing the impeller annually or every 100 hours of operation—more frequently under heavy use or abrasive conditions. Carrying a spare impeller aboard and visually inspecting the housing and fittings during winterization or spring commissioning helps avoid surprises.

• Replace at least once per season or every 100 operating hours.
• Inspect for torn blades, hardening, or missing sections before use.
• Keep a spare impeller on board to prevent tows and downtime.

Will this kit replace other part numbers and aftermarket equivalents?

Yes—this service kit is intended as an OEM-matching substitute for many common replacements and cross-references used by dealers and mechanics. It’s specified to replace multiple Jabsco, PCM, Sierra, Mallory, Globe and JMP numbers when those engines or pump housings are present.

• Cross-references include Jabsco 13554-0001, PCM RP061018, Sierra 18-3306 and more.
• Designed to meet engine manufacturer flow requirements used by professional shops.
• Suitable for both freshwater and closed-cooled setups listed in compatibility notes.

Who is this for? If you own or maintain a Malibu, Axis, or other boat powered by an Indmar engine—or any engine using a Johnson F6B raw water pump—and you want a dependable, OEM-equivalent impeller made from high-quality neoprene, this SWELL Wakesurf Creator 09-812BT service kit is a direct-fit, service-grade choice. It's ideal for owner-mechanics, marine technicians, and fleet maintainers who prioritize correct fit, manufacturer-level materials, and predictable cooling performance.