Pentair Diffuser Screw Set 4-40 x 1-1/8 WFE Stainless Steel | 071660Z
Pentair
SKU: 071660Z
Pentair 071660Z Set Screw – 4-40 × 1-1/8″
Part Number: 071660Z
Description
A stainless-steel socket-cap set screw sized 4-40 thread x 1-1/8″ length, designed for secure fastening in Pentair pump assemblies and related equipment.
Compatibility & Fitment
- Fits Pentair IntelliFlo® VF/VS, WhisperFlo®, IntelliPro® VS+SVRS and similar pump models specifying a 4-40 x 1-1/8″ screw.
- Use when the original screw is stripped, corroded, missing, or fails to hold the component securely.
- Direct replacement for systems listing part number 071660Z.
Features & Specifications
- Thread size: 4-40 (UNF).
- Length: 1-1/8″ (approx. 1.125″).
- Head style: Socket cap (requires hex key/Allen wrench).
- Material: 18-8 stainless steel for corrosion resistance in pool environments.
- Single unit screw (sold individually).
Installation Notes
Isolate electrical power and ensure equipment shutdown before servicing. Remove the existing set screw and clean the screw hole and mating thread. Insert the new 071660Z screw and tighten to the manufacturer’s torque specification. After installation, confirm the component is secure and the pump system operates without vibration or loosening.
Maintenance Tip
During annual service, inspect set screws for signs of corrosion, thread wear or slack. Replace any screw that shows damage or fails to maintain tightness to ensure safe and reliable equipment operation.
Questions about returns? View our return policy.
Hours Of Operation:
Monday - Friday: 7:00 am to 5:00 pm Phoenix Time
Saturday: 8:00 am to 2:00 pm
Sunday: Closed
- We do not ship on Saturday or Sunday.
- Orders totaling more than $300 will require signature confirmation upon delivery.
- We process and prepare orders for shipment within 1 business day. Please note that many other pool supply retailers require 3–5 days of handling time before shipping.
- Orders placed after 1:00 pm Phoenix Time may not be eligible for same-day shipment.
- Expedited shipping options are available at checkout.
Return Policy:
- Products that are received damaged will receive a refund in store credit.
- Most products are eligible for return within 30 days of receipt, except where noted below.
- To initiate a return, please complete an RMA form prior to sending your item back.
- Original shipping costs are non-refundable and will be deducted from the return credit.
- Items returned missing accessories or original packaging, or that are not in the same condition as received, may be subject to a restocking fee of up to 100% depending on the condition of the item upon return.
- Some returns will be charged an automatic 15% restocking fee.
- We are unable to issue refunds for items that have been damaged or rendered inoperable due to installer error.
- Please complete the return form to receive your RMA number and return shipping label.
- Chemical products are not eligible for return under any circumstances.
- The Pentair Colorsync 618031 is not eligible for return.
- Pool cleaners are not eligible for return.
- Opened seals and o-rings are not eligible for return.
- Capacitors are not eligible for return.
- Plastic popup tools are not eligible for return.
- Automation components and circuit boards are not eligible for return.
- If a light is returned due to a reported malfunction and is found to be fully operational upon testing, return shipping costs and a restocking fee will be deducted from the refund.
- Orders refused at the time of delivery will be subject to the original shipping costs being deducted from the refund.
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