Pentair Tank Body V Clamp Assembly with Nut | C119-37S
Pentair
SKU: C119-37S
Pentair / Sta-Rite Tank Body V-Clamp (Service Clamp) | C119-37S (5056-12A)
The Pentair / Sta-Rite C119-37S is a replacement tank body V-clamp used to secure the wet-end (tank/volute) joint on select Sta-Rite pumps. It clamps the pump housing sections together evenly to maintain a tight, leak-free seal and proper internal alignment. Replace the clamp if the original is corroded, bent, cracked, stripped, or won’t tighten evenly.
Compatibility
- Sta-Rite Dura-Glas inground pool & spa pumps (where the parts diagram specifies C119-37S)
- Sta-Rite Max-E-Glas inground pool & spa pumps (where the parts diagram specifies C119-37S)
- Tip: Confirm your exact pump model and parts diagram—wet-end revisions can vary.
Key Features
- Restores secure wet-end clamping to help prevent drips at the tank body seam.
- Helps maintain prime by reducing air leaks caused by uneven or damaged clamps.
- OEM-fit replacement clamp for the specified Sta-Rite pump assemblies.
- Service-friendly—ideal when rebuilding a wet end or replacing the seal plate / volute O-ring.
Specifications
- Brand: Pentair / Sta-Rite
- Part Number: C119-37S
- Common Cross Reference: 5056-12A
- Part Type: Tank body V-clamp / band clamp
- Approx. Size Listing (varies by catalog): 11-1/2" L x 11-1/2" W x 1" H
- Quantity: Sold individually
What’s Included
- Tank body V-clamp assembly
Important Note
- Some setups require a separate clamp knob/nut depending on your pump version and what you’re replacing. A commonly referenced clamp knob is WC36-22 (sold separately if needed).
- If you’re replacing the clamp due to leakage, inspect/replace the matching tank/volute O-ring at the same time.
Common Reasons to Replace
- Clamp is rusted/corroded or seized and won’t tighten smoothly
- Clamp band is bent or won’t sit evenly around the housing seam
- Stripped threads or damaged tightening hardware
- Recurring seepage at the wet-end seam after replacing O-rings
Installation Notes
- Turn off power at the breaker and relieve system pressure before opening the pump.
- Clean the clamp seating area and housing seam—debris can prevent even clamping and cause leaks.
- Seat the O-ring properly (if applicable), then tighten the clamp evenly—avoid over-tightening.
- After restart, inspect closely for drips and air bubbles in the pump basket.
Related Products
- Search Aqua Pool Supply for C119-37S
- Search Aqua Pool Supply for 5056-12A
- Clamp Knob / Nut (WC36-22)
- Tank Body / Volute O-Ring (5056-06)
- Sta-Rite Dura-Glas pump parts
- Sta-Rite Max-E-Glas pump parts
- Pump seal kits
Maintenance Tips
- When servicing the wet end, replace worn O-rings at the same time—new clamps can’t seal against flattened or nicked seals.
- Support plumbing to reduce stress on the pump housing; misalignment can contribute to leaks and clamp distortion.
- If you see recurring air bubbles in the pump basket, re-check clamp seating and the tank O-ring condition.
- Winterize properly—freeze expansion can distort housings and lead to clamp and seal damage.
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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