Pentair 474063 Tube Sheet Coil Kit - Full Kit with Finned Coil Insulation O-Rings Gaskets and Sealant
Pentair 474063 MasterTemp 250HD tube sheet coil assembly kit, side profile of the finned coil loop and header plate
Pentair 474063 MasterTemp 250HD tube sheet coil assembly kit, header plate view with brass tube ends and finned coil stack
Pentair 474063 MasterTemp 250HD tube sheet coil assembly kit, eight O-rings with the metal clamp assembly plate included

Pentair MasterTemp 250HD Tube Sheet Coil Assembly Kit 474063

$1,649.99
$1,649.99 $1,805.87
Share
Product Description

Pentair MasterTemp 250HD Tube Sheet Coil Assembly Kit 474063

Restore heat to your Pentair MasterTemp 250HDNA and 250HD-LP heavy duty heaters (250,000 BTU) with the genuine OEM 474063 tube sheet coil assembly kit. When the heat exchanger coil leaks or scales up, this kit replaces the finned coil and tube sheet together with fresh O-rings, insulation, gaskets, and sealant, so a failed exchanger does not mean replacing the whole heater.

🚩 PRO TIP: Heat-exchanger work is for a qualified technician only — isolate the gas and water, drain the heater, replace every O-ring and gasket in the kit, and pressure- and leak-test the reassembled heater before returning it to service. Match the part number on your existing coil kit before ordering.

PRODUCT FEATURES & SPECIFICATIONS:

  • Brand: Pentair
  • MPN: 474063
  • UPC: 788379792015
  • Type: Pool Heater Parts
  • Part: Tube sheet coil assembly kit (New Tub Design) with O-rings
  • Includes: Finned tube-sheet coil with header plate, coil/tubesheet sealing O-ring kit, clamp assembly, insulation kit (top and bottom), gaskets, and silicone tube
  • Fits: Pentair MasterTemp 250HDNA and 250HD-LP heavy duty heaters (250,000 BTU HD series, manufactured after January 2009)
  • Cross-Reference: Standard (non-HD) MasterTemp 250 kit is 474059 — not interchangeable with this HD kit
  • Weight: 33.3 lb

FREQUENTLY ASKED QUESTIONS:

  • Which heaters does the Pentair 474063 fit? The Pentair 474063 fits Pentair MasterTemp 250HD heavy duty heaters (250HDNA and 250HD-LP); the standard non-HD MasterTemp 250 kit is a different part (474059).
  • What is included in the Pentair 474063 kit? The Pentair 474063 kit includes the finned tube-sheet coil with header plate, the coil/tubesheet sealing O-ring kit, clamp assembly, insulation kit, gaskets, and silicone sealant.
  • Will the Pentair 474063 fix a leaking heater? If the leak is in the heat exchanger coil itself, yes — the Pentair 474063 replaces the coil and tube sheet with fresh seals; leaks at unions or the manifold alone are separate parts.

WHY SHOP WITH AL'S COOL POOL STORE?:

  • ✅ Fast, reliable shipping on every order
  • ✅ Genuine OEM and top-brand parts only
  • ✅ Knowledgeable pool & spa experts ready to help
  • ✅ Hassle-free returns and satisfaction guarantee