Complete Wet End Replacement for Pentair 357149 — WhisperFlo & IntelliFlo, 0.5–2 HP, 56Y Square Flange

This Complete Wet End Replacement Kit is an aftermarket assembly compatible with Pentair WhisperFlo and IntelliFlo pool pumps rated 0.5 to 2 HP (replaces the wet end associated with Pentair 357149). It rebuilds the pump's entire water-handling section in one kit — housing, seal plate, diffuser, basket, lid, and all hardware — so you can fix a cracked, leaking, or worn wet end without replacing the motor or buying parts one at a time.

Key Features

• Compatible replacement for Pentair 357149: Engineered to match the fit and function of the OEM wet end at a lower cost.
• Complete rebuild in one kit: No hunting for individual part numbers — everything for the wet end is included.
• Fits 0.5–2 HP WhisperFlo & IntelliFlo: Compatible with IntelliFlo VS/VF models 011018, 011055, and 011056 and WhisperFlo 0.5–2 HP.
• Reinforced construction: Housing and seal plate built to withstand system pressure, pool chemicals, and continuous-use applications.
• Keeps your motor: Reuse your existing working motor — a fraction of the cost of a whole new pump.
• Includes hi-temp unions: 2" hi-temp unions make installation and future service faster.

What's Included

• Pump housing / volute (equivalent to 350015)
• Seal plate (074564) with PS-1000 shaft seal
• Diffuser with O-ring (072928 / 072927)
• Strainer basket (070387Z)
• Lid with O-ring (357151) and locking clamp ring (357199)
• Motor foot base / support inserts (070927 / 070929)
• Drain plugs with O-rings (071131), diffuser screws, and complete hardware kit
• 2" hi-temp unions

Not Included

• Motor — reuse your existing motor
• Impeller — impellers are specific to your pump's horsepower and are sold separately

Specifications

• Type: Complete wet end replacement kit (aftermarket)
• Compatible With: Pentair WhisperFlo & IntelliFlo, 0.5–2 HP; IntelliFlo VS/VF 011018, 011055, 011056
• Part Reference: 357149
• Material: Reinforced thermoplastic housing; corrosion-resistant hardware
• Note: Aftermarket replacement — not a Pentair OEM component; brand names are for compatibility reference only

Frequently Asked Questions

Which pumps does this fit?

Pentair WhisperFlo and IntelliFlo pumps rated 0.5 to 2 HP, including IntelliFlo VS/VF models 011018, 011055, and 011056. For 3 HP pumps, order the 3 HP version instead. Always verify your pump model before ordering.

Does it include the impeller?

No. The impeller is HP-specific and sold separately — using the impeller matched to your pump's horsepower is essential for correct performance. The motor is also not included; you reuse your existing one.

Is this a genuine Pentair part?

No — it's a quality aftermarket replacement designed to be compatible with the Pentair 357149 wet end. It matches the fit and function of the OEM assembly at a lower price.

What exactly comes in the kit?

The full wet end: housing/volute, seal plate with shaft seal, diffuser with O-ring, strainer basket, lid with O-ring, locking ring, foot base inserts, drain plugs, complete hardware, and 2" hi-temp unions. See the "What's Included" list above.

How is this different from the 3 HP version?

Horsepower and internal sizing. This kit fits 0.5–2 HP pumps; the 3 HP version is built for 3 HP pumps. They are not interchangeable — match the kit to your pump's HP.

Should I replace the shaft seal too?

It's already included (PS-1000) — and you should always install the fresh seal that comes with the kit to prevent repeat leaks. Professional installation is recommended.