Wet End Kit, After Market, 48 Frame, 1.0HP, SD, 2″MBT

Item #: 77709-BYP

This is the 1.0 HP after-market wet end of the Wavemaster 4000 jet pump. The jet pump is comprised of two main components: the electric motor and the “wet end”.

This part can be found on
Hot Spot TX from 2019 to 2019 • TX from 2011 to 2018 • TX from 2011 to 2020 • TX from 2022 to 2022 • Y, YQ, ZQ from 1998 to 2002.
Solana X from 2000 to 2002.

View Diagrams & Part Compatibility

  • Add Bleedline Nipple? Hot Spring/Solana/Hot Spot (32267):

  • Add 2 Compression Fitting O-rings?:

  • Add Bleedline Nipple? (33732):

View OEM
SKU: 77709-BYP Categories: , Tags: , , ,


What’s Included: Volute, volute cover, volute o-ring, volute stainless steel screws, wear ring, impeller and the shaft seal.

Description: This is the 1.0 HP after-market wet end for the Wavemaster® 4000 jet pump. This wet end is exclusively for LX model pumps that have a vendor code of “3536”. Your Wavemaster 4000 (1.0 HP) jet pump is comprised of two main components: the electric motor and the “wet end”. In some cases, this entire “wet end kit” is needed. Perfect remedy if your ‘wet end” has cracked due to a severe freeze since neither of the two halves are available individually. The shaft seal and impeller are still available. 

Installation: All “wet end kits” come pre-assembled from the factory. To install this kit you’ll disassemble it and re-assemble it one piece at a time onto your existing pump motor. The typical assembly time for this kit is two hours for the non-service tech.

Important information for replacement parts:
Please check vendor code, horsepower, voltage, and speed on your pump before ordering replacement parts.

Vendor Code: 3536
Model: 39575-03 or 37334-03
Wet End Impeller Shaft Seal Wear Ring
77709-BYP* IMP-77709 77363 n/a

*Stamped on volute: GF30 & B653-11
**For volute-oring, see item 48WUA-V

View Diagrams & Part Compatibility

Ref. Diagram
# 16 XP2/LX Jet Pump, Wavemaster (Hot Spot 2019 - 2019) View Diagram
# 2 Jet Pump, Wavemaster XP2/LX (Hot Spot 2011 - 2018) View Diagram
brand model years
Hot Spot TX (TX) 2022
Solana X (Indoor Only) (X) 2000, 2001, 2002
Hot Spot TX (TX) 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2018
Hot Spot Hotspot 2 (Y) 1998, 1999, 2000, 2001, 2002
Hot Spot SLX (YQ) 1998, 1999, 2000, 2001, 2002
Hot Spot RLX (ZQ) 1998, 1999, 2000, 2001, 2002

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