Insulation Disc Bottom, 30″ OD x 5″ ID Hotsy

SKU 8.717-437.0 Category
  • 30″ OUTER Diameter
  • 5″ INNER Diameter
  • Refractory Grade Ceramic
  • Retains heat inside coil for fuel efficiency and paint protection



Part Number: 8.717-437.0
Cross Reference Part Number(s): 268016, 7-01426, 801687174130

This 8.717-437.0 Hotsy bottom coil insulation is commonly referred to as the coil base or pancake insulation. It measures 16 inches Outer Diameter x 4.5 inches Inner Diameter and is installed on a large number of Hotsy hot water pressure washers below the heating coil to protect the pressure washer and burner components from high heat damage.

This insulation for use on the following Hotsy hot water pressure washers:

• 5730ss • 5733ss
• HSS-653569E • HSS-952569E
• HSDS-653569E • HSDS-952569E
• HSS-803069E • HSS-102589E
• HSDS-803069E • HSDS-102589E

NOTE: Coil insulation is designed for specific brands and models of pressure washers and is NOT interchangeable.  Please consult your Operator’s Manual to verify you are purchasing the correct part, or feel free to call us for assistance.


30 in.

Inner Diameter

5 in.

Memorial Day Observance

In honor of the Memorial Day weekend, Shop Pressure Washer Parts will be operating at limited capacity on Friday, May 24th, 2024, and will be closed on Monday, May 27th.

As a result, orders placed after 12:00pm (PDT) on May 24th may not be processed until Tuesday, May 28th. 

If you have any questions, please feel free to call us during our regular business hours, 7:30a-4:00p (PDT), at (888) 269-0172 and we will be happy to help!

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