The Milwaukee 34-40-0900 is a genuine OEM replacement O-Ring designed for use in compatible Milwaukee power tool assemblies. This precision-sized elastomeric sealing ring provides reliable static and dynamic sealing to prevent lubricant leakage from gear cases, block moisture and debris ingress through tool body interfaces, and maintain proper internal pressure in pneumatic and hydraulic tool components. Manufactured to Milwaukee's exact material and dimensional specifications, this O-Ring ensures the correct elastomer compound, durometer, inside diameter, and cross-sectional diameter for its intended sealing groove. Replace this component whenever the existing O-Ring exhibits compression set, cracking, swelling, or physical damage to restore full tool sealing performance.
Features
Genuine Milwaukee OEM O-Ring with correct dimensions and elastomer for the specific tool application
Restores lubricant containment and debris/moisture exclusion sealing function
Correct material, diameter, and cross-section critical for effective sealing performance
Replace when O-Ring shows compression set, cracking, swelling, or physical damage
Verify tool model and serial number at milwaukeetool.com before ordering to confirm compatibility
Specifications
Brand: Milwaukee Tool
Part Number: 34-40-0900
Type: O-Ring Sealing Component
Material: Rubber
Color: Black
Compatible Tools: Milwaukee Power Tools (verify model and serial number)
UPC: 045242097623
Includes
(1) Milwaukee O-Ring (34-40-0900)
Shipping
- We will usually ship your order in 1 to 2 business days! Orders purchased before 2:00 pm EST may be shipped the same day.
- Your order must have a subtotal of $199 or more to be eligible for free shipping.
- The delay of your order will depend on your location and from which warehouse your order is shipped from. We will always ship your order from the closest available warehouse. Based on our experience, we estimate the transit time to be between 1 to 3 business days across Canada (excluding NWT, Yukon and Nunavut) and 2 to 5 business days to USA.
- All orders will be shipped from Canada.
- You may pick up your order at one of our warehouses, Monday to Friday, from 8 am to 5 pm. Pickup orders are usually ready within 4 hours.
Returns
We are offering a 30-day money-back guarantee!
If you are not satisfied with your purchase within 30 days of receiving the product, you can ship it back to us for a refund or exchange.
Before returning the item, kindly send us a request using the Self-Serve Return option or contact our customer support team to get your return authorization. You may contact us by email at support@mprtools.com, phone at 1-800-905-0410, or chat through our website. We are available Monday to Friday from 8 am to 5 pm ET.
We want to guarantee your experience with us will be outstanding. Here are just a few of the reasons why mprtools.com is the go-to company to get your tools from:
1-Year Price Match Guarantee
We work very hard to ensure we offer the absolute best prices online. If you find it at a lower price somewhere else within 365 days of purchasing, please message us, and we’ll credit you back the difference right away.
30-Day Money-Back Guarantee
It's our duty to provide superior quality tools you can trust to get the job done. If you're not fully satisfied with your order, you can request a return for a complete reimbursement.
