Polaris 3900 Sport Chain Tensioner Kit

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Polaris SKU: 39-120
Polaris 3900 Sport Chain Tensioner Kit - ePoolSupply
Polaris 3900 Sport Chain Tensioner Kit - ePoolSupply
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Polaris 3900 Sport Chain Tensioner Kit

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Polaris SKU: 39-120
Regular price $36.95 Sale price $24.95 Save 32%
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Polaris 3900 Sport Chain Tensioner Kit (39-120)

The chain tensioner kit was designed by Polaris for the 3900 Sport pressure side cleaner. It is made from the same high-quality material as the original factory part. Making it a genuine OEM product.

These parts were designed to aid in the maneuverability of the 3900 Sport and its purpose is to apply force or maintain tension for the chain. This is important because the chain is what rotates the wheel sprockets and wheels themselves giving the cleaner the ability to move and cover the entirety of your pool's surface. If the chain is loose in any way it more than likely will fall off its tracks taking the cleaner's ability to move away.

This tensioner is black and has a spring attached to it that helps apply the tension needed to keep the chain in place. It is located near the front of the cleaner on the frame near the first wheel sprocket where the chain is held. Making it easy to locate and replace if damaged or worn.

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· Most Orders Ship Free "Standard" To USA Domestic Mailing Addresses.

· We proudly ship with FedEx, USPS, UPS, and OnTrac. ***

· Certain items may be upgraded for shipping…ON US!

· Orders above $300 could be required to have signature confirmation

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· Some Expedited Shipping will incur additional handling time if Pre-Order status is displayed ****

***Shipping Carrier is determined upon delivery speed needed for each order. Paid Expedited Shipping will be shipped at the speed requested but Carriers are subject to change without notice.

**** Handling time varies with inventory and availability. Please reach out with any questions or concerns regarding the inventory of your item.


USPS First Class Mail and Priority Mail shipping is NOT GUARANTEED. Displayed transit times are estimates and not Guarantees.

Expedited Shipping via FedEx/UPS: Monday-Friday before 1:00 PM Arizona Time

We do NOT allow changes in address with Carriers after items are shipped.


Weekend deliveries are the future, and we are striving to meet all the needs of our customers. However, the carriers are attempting on rolling the processes on certain zip codes throughout the mainland 48 states only. Restrictions do apply.

Standard and expedited shipping methods through all carriers cannot guarantee Saturday deliveries due to restrictions to certain carrier zoning.