Polaris 39-200 3900 Sport gearbox assembly, underside viewPolaris 3900 Gearbox Assembly 39-200 In stock$20099
Polaris 39-200 3900 Sport gearbox assembly, underside view
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Polaris 3900 Gearbox Assembly 39-200

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$20099
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Quick overview

  • Complete gearbox the whole assembly with every internal gear and bearing already in place.
  • Fits 3900 Sport and P39 the Polaris 3900 Sport and the Polaris P39.
  • Genuine Polaris Zodiac Polaris OEM part 39-200, not a rebuilt or aftermarket box.
  • The drive of the cleaner the gearbox turns water pressure into wheel drive, so a worn box means a slow or stalled cleaner.
  • No press work swapping the assembly avoids pulling individual gears and bearings.
  • Pair with wear parts check the chain guard (POL-201-3220) and wheels while the drive is apart.
Full description and specifications ↓

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Product details

The Polaris 39-200 is the complete gearbox assembly for the Polaris 3900 Sport and P39 pressure cleaners. It is the genuine Zodiac Polaris part, and it ships as a full unit with every internal gear and bearing already in place.

What it does

The gearbox is the drive of the cleaner. Water pressure spins the turbine, and the gearbox turns that into wheel drive. When the gears or bearings wear, the cleaner slows down, stalls when it climbs, or grinds even with good pressure at the wall fitting and a clean in line filter. Replacing the whole assembly puts a fresh drive under the cleaner in one step, with no individual gears or bearings to press.

While it is apart

Look at the chain guard (POL-201-3220) and the wheels. If the cleaner has enough hours to need a gearbox, those are often due as well, and the 3900 Sport rebuild kit (POL-201-3900) covers the rest of the common wear parts.

Specifications
Brand Polaris
Manufacturer part number 39-200
UPC 738919066939
Type Gearbox assembly
Included Gearbox with all internal gears and bearings
Fits Polaris 3900 Sport, Polaris P39
Shipping weight 1 lb
Ships Parcel

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Questions and answers

What people ask about this product, answered by our pool techs.

Which cleaners use this gearbox?
The Polaris 3900 Sport and the Polaris P39 pressure cleaners.
Does it come with the gears and bearings?
Yes. The 39-200 is the complete assembly with all internal gears and bearings installed.
How do I know the gearbox is the problem?
A 3900 that crawls, stalls under load or grinds with good water pressure at the wall and a clean in line filter usually has worn gears or bearings in the box.
Is this the genuine Polaris part?
Yes. It is the original Zodiac Polaris part number 39-200.
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