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SpaShopper makes it easy to find quality hot tub and spa replacement parts without the frustration. From spa pumps and heaters to control boards, jets, filters, and plumbing components, we stock parts that fit a wide range of popular spa brands. Whether you’re fixing a heating issue, replacing a worn pump, or upgrading aging components, SpaShopper helps you get your spa running again quickly and confidently.

Watkins Complete 10 Amp Wet End 39577-03 Vendor Code 3536 56FR 77712

SpaShopper

MSRP: $159.99
$134.99
(You save $25.00 )
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SKU:
WE-LPAEESILVERWatkins-1
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Independent Supplier & Replacement Part Notice

We are an independent parts supplier and are not affiliated with, sponsored by, or endorsed by Watkins, Hot Spring, Caldera, Tiger River, or Solana. These names and their part numbers are used only to identify compatibility.

We offer replacement parts as alternatives to spa-branded parts. When this listing identifies a part as the same original-manufacturer replacement, it is supplied under the component manufacturer’s branding and part number, which may differ from the Watkins or spa-brand label and number. Other compatible alternatives are identified in the individual product listing. Please review the listed specifications, fitment details, and any installation differences before ordering.

This Complete Wet End fits a 39577-03 Vendor Code 3536 10 Amp 56 Frame Pump 77712..

It is about 7 1/4"" across the face of the pump, it measures about 7 3/8" from the bottom to the top of the pressure side of the volute, it also measures 4 13/16" from the back to front edge. The Suction and Pressure side thread fittings are called 2" x 2" but measure 3" from the edge of the thread to the edge of the thread. 

NOTE: This Wet End looks a lot like an Aqua-Flo and a CMP Wet End but they do not interchange! 

olts and unscrew the impeller. There are time where you will have to disassemble the motor in order to loosen the impeller because they get stuck when they leak. 
Note: We offer parts for this wet end and complete pumps in our store. 
 
If you need a Bleeder Barb for this Pump there are 2 Possible Sizes They can be found here:
 
 
 
 
 

IMPORTANT MOTOR VARIATION NOTICE

Due to ongoing changes in the hot tub pump industry since COVID, motor appearance and configuration may vary, even when the part number is the same. While the pump wet end will be correct, the motor may differ in areas such as capacitor location, labeling, or housing.

If you have a specific motor requirement (clearance, capacitor position, orientation, etc.), you must contact us before ordering so we can verify availability. Do not order first and contact us after delivery due to appearance differences.

Motor variations are outside of our control and may change week to week. Appearance differences do not constitute an incorrect item if specifications are met.