OEM Raypak UG Bypass Assembly Kit 018758F is a genuine replacement part designed for use in Raypak pool heaters, specifically models 336 through 408. This assembly ensures stable water flow and precise temperature control within the heater, protecting internal components and improving overall heating efficiency. Built from heat- and corrosion-resistant materials, the kit includes all required hardware for a complete installation. Replacing a faulty bypass assembly with this OEM kit helps maintain your heaterÕs reliability and long-term performance under demanding pool conditions.

• Exact OEM Fit: Designed for Raypak pool heaters 336 through 408 for reliable integration and trouble-free performance.

• Improves Flow Regulation: Maintains optimal water flow and stable temperatures to prevent overheating and prolong component life.

• Complete Kit Contents: Includes all necessary parts for proper installation and quick restoration of heater function.

• Durable Construction: Made from high-quality, heat-resistant materials that withstand pressure and pool chemical exposure.

• Supports System Efficiency: Helps preserve heater performance by restoring correct water bypass operation using original Raypak components.

• Raypak Digital ASME 336-408 Pool Heaters

Heater Overheating or Inconsistent Temperature

raypak 408 heater shutting off due to overheating

water temperature not stable Ñ bypass assembly issue

heater too hot to touch Ñ need new 018758F bypass

pool not heating evenly Ñ bypass valve might be stuck

fix heater temp problems with walk-in part replacement

Part Cracked or Not Regulating Water Flow

bypass assembly cracked Ñ leaking water in heater

flow sensor errors showing on raypak digital panel

heater not firing Ñ governor bypass stuck

install 018758F to fix low flow or thermal shutdown

bring your heater model in to match the right part

In-Store Pickup for Quick Repair

buy 018758F bypass assembly kit in store today

walk in to get bypass part for raypak 336-408 heater

part available locally for same-day heater repair

in-stock kit includes everything needed for install

fix heater flow and temperature today Ñ visit store