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Sundance® Spa Theraflo, Theramax, Aqua-Flo "XP" Series Pump Components

Determining whether your motor is a 48 or 56 Frame Motor.

The spa and pool industry use various "Frame" sizes to mount their "wet end" or pump to. A bracket mount motor has a welded base for mounting. These motors can be a 48 or 56 Frame. Other types of motors such as the "C" Frame or Round Face and the Square Flange are all 56 Frame.

There are several ways to figure out the Frame size. One is to look at the spec sheet where it says Frame (FR) it might have some letters with it but will have 48 or 56 as the frame size. The other way to determine is to measure the thru bolts (the 4 bolts that run thru the length of the motor and screw onto the wet end or volute of the pump). Measure the distance between the thru bolts. DO NOT measure diagonally but from one bolt to the next bolt.

  • 48 FRAME distance between the 2 bolts is 3 5/8 inch (Less than 4 inches)
  • 56 FRAME distance between the 2 bolts is 4 1/8 inch* (Over 4 inches)

If your bolt pattern is under 4 inches you have a 48 Frame and if your bolt pattern is over 4 inches you have a 56 Frame. Because all manufactures do not call all things the same this is the best way to tell the Frame size. But see the Exception below to the above measurements:

*PLEASE NOTE: AQUA-FLO FMXP FRAME Wet ends, have two different sizes on their 56 Frame Motors. They used 2 different motor manufactures, Emerson and Magnetek which can be different sizes.

Sundance® Spas Exception: On some Sundance® Spas, they used some Emerson Motors that was a 56 Frame but had a thru bolt spacing of 4 inches (used between 1997-1998 on their Theramax II Pump). These pumps are the 6.1 diameter
56 Frame Wet Ends that we reference.

You must measure the distance between the thru bolts to determine the correct pump wet end for your spa.

How to Determine Spa Plumbing Size
Pump plumbing sizes are nominal, and not actual outside diameter (OD) of the threaded intake and/or discharge. Use a tape measure and check your old pump thread size against the sizing table

Plumbing Size Pump Thread OD (Approx)
1-1/2 in 2-3/8 in
2 in 3 in
2-1/2 in 3-5/8 in
Displaying products 1 - 15 of 15 results
Spa Pump Wet End for Sundance® Spas - 4.2/2.5 Hp, 48 Frame
Spa Pump Wet End for - 4.2/2.5 Hp, 48 Frame
Sale Price: Ouf of Stock No ETA
Sundance® Spas
Spa Pump Wet End for - 4.2/2.5 Hp, 48 Frame
Complete Wet end for Sundance Spas Emerson 48 Frame motors used up to 2009. Contains front and rear housing, impeller, o-ring, seal and screws. Comes fully assembled.
free shipping
Spa Pump Wet End for Sundance® Spas 1.5 HP, 48 Frame
Spa Pump Wet End for 1.5 HP, 48 Frame
Sale Price: $178.00
Sundance® Spas
Spa Pump Wet End for 1.5 HP, 48 Frame
SUNDANCE SPAS wet end for 1.5 Hp Pump. Can be used on all SUNDANCE SPAS Pumps from 1998-2004/2009. 2 inch Suction and Discharge. (3 inch OD). 48 Frame. See More Info!
free shipping
Spa Pump Wet End for Sundance® Spas 4.0/2.0 HP, 48 Frame
Spa Pump Wet End for 4.0/2.0 HP, 48 Frame
Sale Price: $179.00
Sundance® Spas
Spa Pump Wet End for 4.0/2.0 HP, 48 Frame
Complete Wet end for Sundance Spas Emerson 48 Frame motors used up to 2009. Contains front and rear housing,impeller, o-ring, seal and screws. Comes fully assembled.
free shipping
91694200, Impeller 2Hp FMXP/FMXP2, 6000-048
6000-048, 91694200 Impeller 2HP FMXP/FMXP2
Sale Price: $34.87 1 In stock at this price
Aqua-flo by Gecko
6000-048, 91694200 Impeller 2HP FMXP/FMXP2
91694200, Impeller, 2Hp, 1997-1999 SUNDANCE SPAS Theraflo/Theramax Pump
free shipping
6500-232, Pump Union, Pumps 1997-2008
Sale Price: $29.87
Sundance® Spas
6500-232, Pump Union, Pumps 1997-2008
Fits all SUNDANCE SPAS Theraflo, Theramax Pumps. Comes with Oring.
free shipping
6570-023 Motor Mount insulator .75" (Quantity 2)
Sale Price: $29.87
Sundance® Spas
6570-023 Motor Mount insulator .75" (Quantity 2)
Motor Mount Insulator for SUNDANCE SPAS pumps. Please not the More Info for details on this product
free shipping
6570-070 Spa Wet End Screws (8-Pack)
List Price: $22.87
Sale Price: $19.87
Sundance® Spas
6570-070  Spa Wet End Screws (8-Pack)
SUNDANCE SPAS Wet End Screws. Self tapping: 10-12x1.0. Quantity of 8
free shipping
91041622-000, Gecko Aqua-Flo FMXP2 Wet End
91041622-000, Gecko Aqua-Flo FMXP2 Wet End, 2.0 HP, 56 Frame 6.1 inch Diameter
List Price: $150.00
Sale Price: Out of stock
Aqua-flo by Gecko
91041622-000, Gecko Aqua-Flo FMXP2 Wet End, 2.0 HP, 56 Frame 6.1 inch Diameter
Aqua-Flo Wet End, 2.0 HP 2", 6.1"Diameter. 56 Frame FMXP2. Has a 4 inch spacing between thru bolts. Replacement Wet End for SUNDANCE SPAS Original Aqua-Flo Theramax Pump 1997-1999 with 4 inch thru bolt pattern. See MORE INFO!
free shipping
91041623-000, Aqua-Flo FMXP2 Wet End, 2.5 HP
91041623-000, Aqua-Flo FMXP2 Wet End, 2.5 HP, 56 Frame, 6.1 inch Diameter
List Price: $162.45
Sale Price: $109.87
Aqua-flo by Gecko
91041623-000, Aqua-Flo FMXP2 Wet End, 2.5 HP, 56 Frame, 6.1 inch Diameter
Aqua-Flo Wet End, 2.5 HP 2", 6.1"Diameter. 56 Frame FMXP2. Has a 4 inch spacing between thru bolts. Replacement Wet End for SUNDANCE SPAS Original Aqua-Flo Theramax Pump 1997-1999 with 4 inch thru bolt pattern. See MORE INFO!
free shipping
91041820-000
91041820-000 Gecko Aqua-Flo XP Wet End, 2HP, 48 Frame
List Price: $150.00
Sale Price: $109.87
Aqua-flo by Gecko
91041820-000 Gecko Aqua-Flo XP Wet End, 2HP, 48 Frame
Aqua-Flo Wet End, 2Hp, 2" Unions, Side Discharge. 48 Frame FMXP. Thru Bolt spacing: 3 5/8 inch. Old part number: 91041610. Discontinued, new part number is 91041820-000
free shipping
91041825-000
91041825-000 Gecko Aqua-Flo XP2, XP2E Wet End, 2.5HP, 48 Frame
List Price: $150.00
Sale Price: $109.87
Aqua-flo by Gecko
91041825-000 Gecko Aqua-Flo XP2, XP2E Wet End, 2.5HP, 48 Frame
Aqua-Flo Wet End, 2.5Hp,2"MBT Side Discharge. For 48 Frame Pumps with a 3 5/8 thru bolt spacing. If your pump says 56 Frame (found on ID tag under Frame)see More Info.
free shipping
91694251 Impeller, Aqua-Flo
91694251 Impeller, Aqua-Flo, 2.5Hp FMXP/FMXP2 6000-036
List Price: $65.52
Sale Price: $44.87
Sundance® Spas
91694251  Impeller, Aqua-Flo, 2.5Hp FMXP/FMXP2  6000-036
Impeller, 2.5Hp, 1997-1999 SUNDANCE SPAS Theraflo/Theramax Pump. Aqua-Flo Pump. Aqua-Flo FMXP/FMXP2
free shipping
Gecko Aqua-Flo Cover: 91231606, XP2, 2 inch Suction, 6000-151
List Price: $48.78
Sale Price: Out of Stock No ETA
Aqua-flo by Gecko
Gecko Aqua-Flo Cover: 91231606, XP2, 2 inch Suction,  6000-151
Faceplate, Gecko AquaFlo XP2, 2 inch. 2-5/8" ID on back side to receive impeller wear ring.
free shipping
91694150 Impeller 1.5HP FMXP/FMXP2
Impeller 1.5HP FMXP/FMXP2: 91694150
Sale Price: $44.87
Aqua-flo by Gecko
Impeller 1.5HP FMXP/FMXP2: 91694150
91694150, Impeller, 1.5 Hp 1997-1999 SUNDANCE SPAS Theraflo/Theramax Pump
free shipping
6500-447 Viton Pump Seal Assembly
PS-3867 (6500-447) Viton Pump Seal Assembly
List Price: $29.95
Sale Price: $28.87
U.S. Seal
PS-3867 (6500-447) Viton Pump Seal Assembly
SUNDANCE SPAS Viton Pump Seal Assembly . See More Info for Complete list. Used on Aquaflo XP Series, SUNDANCE SPAS Theraflo/Theramax 1997-1999, Sundance 6500-901, 902 and 903 Pumps, SUNDANCE SPAS part number 6500-447.
free shipping
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