Polaris 39-126 genuine OEM driver chain for the 3900 Sport pool cleanerPolaris Genuine OEM Chain (3900), 39-126 In stock$9499
Polaris 39-126 genuine OEM driver chain for the 3900 Sport pool cleaner
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Polaris Genuine OEM Chain (3900), 39-126

Ask a questionMPN 39-126
$9499
In stock
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Quick overview

  • Genuine Polaris OEM Part 39-126, the factory driver chain rather than an aftermarket length.
  • For the 3900 Sport The drive chain used on the Polaris 3900 Sport pool cleaner.
  • Drives the wheels Carries drive from the gearbox to the wheels, which is what moves the cleaner across the pool.
  • A stretched chain skips Once the chain wears, it jumps the sprockets and the cleaner crawls or stalls.
  • Check the tensioner too The chain tensioner is a separate Polaris part and usually wears alongside the chain.
  • Sprockets wear in pairs Worn sprockets chew a new chain quickly, so look at them while the cleaner is open.
Full description and specifications ↓

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Product details

The Polaris 39-126 is the genuine OEM driver chain for the 3900 Sport pressure pool cleaner. It carries drive from the gearbox out to the wheels, so it is the link between the cleaner having power and the cleaner actually going anywhere.

What a worn chain looks like

Chains stretch. As the pitch grows, the chain no longer sits down properly on the sprocket teeth and starts to skip under load. On the pool floor that shows up as a cleaner that crawls, wanders off its pattern, or stops moving while the jets are still working. If you can pull the chain visibly clear of the sprocket, replacement is overdue.

Do the job once

While the cleaner is open, look at the chain tensioner and the wheel sprockets. Both are separate Polaris parts and both wear on the same schedule as the chain. Fitting a new chain onto worn sprockets simply wears the new chain out early.

Specifications
Brand Polaris
Manufacturer part number 39-126
UPC 738919065246
Type Driver chain
Part type Pool cleaner part
Fits Polaris 3900 Sport pool cleaner
Shipping weight 0.1 lb
Ships Parcel

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Questions and answers

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

Which cleaner does this chain fit?
The Polaris 3900 Sport. It is the genuine OEM driver chain, part 39-126.
How do I know the chain is worn?
A worn chain has stretched, so it sits slack, skips over the sprocket teeth and makes the cleaner crawl, wander or stall. If you can lift it well clear of the sprocket, it is done.
Should I replace anything else at the same time?
Look at the chain tensioner and the wheel sprockets while the cleaner is apart. Both are separate Polaris parts, and worn sprockets will wear a fresh chain quickly.
Is this a genuine Polaris part?
Yes. It is Polaris OEM part 39-126, not a generic chain cut to length.
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