GRS® 901 Piston V3

Upgrade your existing 901 handpiece with this advanced piston. The 901 Piston V3 is included standard in these handpieces manufactured beginning April 2009.  Photo shows piston from both sides. Item is sold individually.

How is the 901 PISTON V3 Better?

1. Permanently lubricated construction using an advanced composite sleeve for the outside of the piston. This sleeve has proprietary solid lubricants in it. The previous 901 piston was lubricated by a thin coating which would wear out in time. This new design will not.

2. Mass centralization. By using a heavy metal insert inside the composite sleeve, total piston mass is the same as the original piston. However, the heavy insert is about 3 times as dense as steel. This concentrates the piston mass in the center of the piston which helps it run smoother.

3. New design spring pocket. One end of the handpiece spring fits inside a bored pocket in the piston. In the original design, this pocket was hardened stainless steel. In the new design, this spring pocket is the new lubricated composite. As a result, there is less spring wear and noticeably smoother operation.

4. Lower air pressure and less air consumption. Although this new V3 piston is a drop-in replacement for the original one, it is designed to operate at a slightly lower air pressure (about 2 psi less). But our tests show it still has the same maximum power as the original design. This means lower air consumption (less wear on your compressor) and a lower pressure source of compressed air may be used. In fact, a 30 psi source of compressed air is usually sufficient now. This opens up many different types of air compressors.

5. Cleaner operation. Less frequent cleaning is needed because piston wear is practically zero.

Item shows 2 pieces to show back and front. This item comes individually.

Warranties are issued by the manufacturer of an item and not our store. If an item you bought is defective within the 30 days of your purchase date, we will gladly replace it for you if a receipt is present. Otherwise, we will be more than happy to help you obtain any information you need in order to properly communicate with the manufacturer of your item. Please note that if you choose to have us correspond with the manufacturer regarding your item, there will be a shipping fee and/or a repair charge if the item's warranty is deemed to be expired. 

We want you to be happy with your purchase and would like to be transparent with our returns policy.

ONLINE returns are accepted within 30 days of the purchase date. All items must be unused and in their original packaging. To return an item, please contact us by e-mail or by phone to obtain an RMA number. We will gladly refund you in the original form of payment. Shipping costs for returns are paid for by customers unless item(s) are deemed to be defective or shipped incorrectly by us. Items that do not have a receipt will be issued a store credit if and when approved for return within the 30 days period. Please note, special orders are non-refundable and non-exchangeable.

STORE returns are accepted within 7 days of the purchase date but will be credited with a store credit. There are no cash returns on items purchased in store. Returns of damaged or defective items will be considered within 30 days of the purchase date.

Please note, any purchases made specifically for Trade Shows will not be authorized for return or exchange.