Polaris 3900 Sport & P39 Gearbox Assembly Replacement | 39-200

Polaris 3900 Sport & P39 Gearbox Assembly Replacement | 39-200

Marsoni

M251S

$158.99

Get it in 3 business days with 1 day shipping. Friday, May 29

Polaris 3900 Sport & P39 Gearbox Assembly Replacement | 39-200The genuine Polaris 39 200 Gearbox Assembly is the mechanical heart of the Polaris 3900 Sport and P39 pressure side pool cleaners, responsible for translating water pressure into the wheel driven movement that propels your cleaner across every pool surface. This complete assembly arrives with all internal gears and bearings pre installed, ready to drop into place between the cleaner's frame and bottom housing. Once seated, it connects to the drive

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We offer a 30-day return/exchange service after receiving.
Final sale items are not eligible for returns or exchanges.
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I’m really impressed with the 10 Gauge Wire Translucent Power Ground Cable! The quality is top-notch—it’s sturdy, durable, and the translucent coating makes it easy to see the wire inside. This cable is perfect for all my electrical projects, and it’s been working flawlessly for powering up systems and grounding connections. It’s flexible enough to handle various setups without being too stiff. Whether you're working on automotive, DIY, or power systems, this wire is a great choice. Highly recommend for anyone in need of reliable and high-quality wiring!

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Reviewed in the United States on January 11, 2025

Verified Purchase

circuitbored

Boise, US

★★★★★ 5

Quality, Pliable Low Voltage Wire

Size: 25FT, Color: Black+Red

Quality, pliable low voltage wire. Used to replace golf cart charging wire from the charger to the golf cart on a 36v cart. Has worked great, stays cool while charging, easy to work with.

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Reviewed in the United States on September 23, 2025

Verified Purchase

Charles Darwin

Lowell, US

★★★★★ 5

Perfect for your Alpha

This kit had every single piece needed for my Alpha water pump - and many I didn't need. I guess it fits basically all the different versions out there. I remember when the single kits cost more and had much less. This is a good high-quality alternative. Stock up on them now - you'll need one eventually.

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Reviewed in the United States on July 28, 2025

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Austin Williams

Massapequa, US

★★★★★ 5

Great bang for your buck!

Swapped out my old impeller and this helped fix my overheating issue. Super high quality, fit like a glove. If you know what you’re doing it’ll take you an hour tops. Super solid for the price! Fit into my 1990 alpha one gen 1 outdrive on my 4.3 Mercruiser.

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Reviewed in the United States on June 22, 2025

Verified Purchase

Jesse Simpson

Los Angeles, US

★★★★★ 4

Decent Kit

It's a pretty decent kit. Comes with all the lower unit options whether yours needs that particular part or not.

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Reviewed in the United States on June 22, 2025