💧 Reducer, Pentair PacFab Challenger, 2″mpt x 1-1/2″fpt
Made by PacFab/Pentair, manufacturer part number 552377. It is listed for the equipment shown below, so check the model on your own unit against that list.
📏 Specifications
| Specification | Value |
|---|---|
| Brand | PacFab/Pentair |
| Manufacturer part number | 552377 |
| PVC Pipe Fitting Type | Reducer |
| First Plumbing Connection Size | 1-1/2″, 2″ |
| First Plumbing Connection Type | Female Pipe Thread (fpt), Male Pipe Thread (mpt) |
| Second Plumbing Connection Size | 1-1/2″, 2″ |
| Second Plumbing Connection Type | Female Pipe Thread (fpt), Male Pipe Thread (mpt) |
| Catalog description | Reducer, Pentair PacFab Challenger, 2″mpt x 1-1/2″fpt |
✅ Listed for
- Pentair PacFab Challenger High Flow In-Ground Pump
California Residents WARNING: Cancer and Reproductive Harm
Exploded parts diagram: This part is shown as item #5 on the Pentair PacFab Challenger High Pressure Pump exploded parts diagram.
🔧 Pentair PacFab Challenger High Pressure Pump – exploded parts diagram

The numbered parts below make up this assembly. Parts we stock are linked – click any to view.
| No. | Part |
|---|---|
| – | Volute, Pentair Challenger/Waterfall, Black |
| – | Trap Assembly, Pentair Challenger, Black |
| – | Go-Kit 5, Pac Fab Challenger |
| – | Complete Union, Pentair, 2" Slip x 2" Male Pipe Thread |
| – | Pump O-Ring Kit, Generic Challenger, w/ Seal |
| – | _11201-0154 |
| – | Pump, Pentair Challenger HP, 3hp, 208-230v, 1Spd, TEFC SD |
| – | Pump, Pentair Challenger HP,2.5hp,208-230v,1-Spd,Up Rate,EE |
| – | Pump, Pentair Challenger HP,1.5hp,115/208-230v,1Spd,Up Rate |
| – | Pump, Pentair Challenger HP,2.0hp,115/208-230v,1Spd,Up Rate |
| – | Pump, Pentair Challenger HP,3hp,208-230v,1-Spd,Full Rate,EE |
| – | Pump, Pentair Challenger HP,2hp,208-230v,1-Spd,Full Rate,EE |
| – | Pump, Pentair Challenger HP,1.5hp,208-230v,1Spd,Full Rate,EE |
| – | Pump, Pent Challenger HP,1hp,115/208-230v,1Spd,Full Rate,EE |
| – | Tool, Socket, Quad-Side A/Solar Side B |
| – | Tool, Clamp Knob Socket, 4-Lobe, w/1/4" Socket Bit Adapter |
| – | Trap Assy,Pent Challenger,All Except 3F/5F,Bk,w/Plastic Bskt |
| – | Trap Assy,PentairChallenger High Pressure-3F,Blk,w/ss Basket |
| – | Adapter, Quick Connect, 2" |
| – | Volute, Pentair PacFab Challenger/Waterfall |
| 29d | 34-110-W011K29D |
| 29c | 34-110-W011K29C |
| 29b | 34-110-W011K29B |
| 29a | 34-110-W011K29A |
| 28 | Screw, Pentair PacFab Challenger/Waterfall, Pump Stand |
| 27 | 34-110-W011K27 |
| 26 | 34-110-W011K26 |
| 25 | 34-110-W011K25 |
| 24 | 34-110-W011K24 |
| 23 | 34-110-W011K23 |
| 22 | 34-110-W011K22 |
| 21 | 34-110-W011K21 |
| 20 | Motor Support, Pentair PacFab Challenger |
| 19 | Motor Support, Pentair PacFab Challenger, Tall |
| 18 | 34-110-W011K18 |
| 17 | 34-110-W011K17 |
| 16 | 34-110-W011K16 |
| 15 | 34-110-W011K15 |
| 14 | 34-110-W011K14 |
| 13 | 34-110-W011K13 |
| 12 | Washer, Pentair PacFab, Pump/Filter, 5/16" |
| 11 | Bolt, Pentair PacFab, Pump/Filter, 5/16-18 x 4-1/4" |
| 10 | 34-110-W011K10 |
| 9 | 34-110-W011K9 |
| 8 | Bolt, Pentair PacFab, Challenger/Waterfall, 5/16-18 |
| 7 | 34-110-W011K7 |
| 6 | O-Ring, 1/2" ID, 1/16" Cross Section, Generic |
| 5 | Reducer, Pentair PacFab Challenger, 2"mpt x 1-1/2"fpt ◀ this part |
| 4 | 34-110-W011K4 |
| 3 | 34-110-W011K3 |
| 2 | 34-110-W011K2 |
| 1 | 34-110-W011K1 |
🔧 Exploded diagram and parts
This part belongs to the Pentair PacFab Challenger High Pressure Pump assembly. Everything listed below is something we stock for it, and the numbers match the diagram.
Show the other 24 parts on this diagram we stock
Trap Assys
| Part | Our part number | Availability | Price | ||
|---|---|---|---|---|---|
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Go-Kit 5, Pac Fab Challenger | GO-KIT 5 | 15 in stock | $57.08 | Add to cart |
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Trap Assy,Pent Challenger,All Except 3F/5F,Bk,w/Plastic Bskt | 359507 | Available to order | $300.90 | |
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Volute, Pentair PacFab Challenger/Waterfall | 355302 | Available to order | $166.13 |
Complete tools
| Part | Our part number | Availability | Price | ||
|---|---|---|---|---|---|
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Tool, Clamp Knob Socket, 4-Lobe, w/1/4" Socket Bit Adapter | MT-501 | 1 in stock | $35.79 | Add to cart |
Complete motors
| No. | Part | Our part number | Availability | Price | ||
|---|---|---|---|---|---|---|
| 29 | ![]() |
Motor, Century, 2.0hp, 230V, 1-Spd, 56YFr, SQFL, ODP | B2855 | 15 in stock | $418.69 | Add to cart |
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Motor, Century, 1.0hp, 115v/208-230v, 1-Spd, 56Yfr, SQFL | B2841V1 | 6 in stock | $413.10 | Add to cart | |
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Motor, Pentair, 5.0hp, 230v, 1-Spd, 56Yfr, SQFL | 353319S | 1 in stock | $939.91 | Add to cart | |
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Motor, Century, 2.0hp, 230v, 1-Spd, 56Yfr, SQFL | B2748 | Available to order | $657.64 | ||
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Motor, Century, 1.5hp, 115v/230v, 1-Spd, 56Yfr, SQFL, Full Rate | B2858 | 14 in stock | $515.45 | Add to cart | |
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Motor, Century, 0.75hp, 115v/230v, 1-Spd, 56Yfr, SQFL, Full Rate | B2847 | Available to order | $208.80 | ||
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Motor, Century, 0.5hp, 115v/230v, 1-Spd, 56Yfr, SQFL | B2846 | 25 in stock | $300.91 | Add to cart |
Parts that go with this
| Part | Our part number | Availability | Price | ||
|---|---|---|---|---|---|
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Pump Union, 2"fbt x 2"fpt, qty 2 | PKG 189 | 6 in stock | $61.53 | Add to cart |
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Magic Plastics Fitting 0302-15 | 0302-15 | 238 in stock | $5.43 | Add to cart |
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Magic Plastics Fitting 0302-20 | 0302-20 | 302 in stock | $4.81 | Add to cart |
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Magic Plastics Fitting 0301-20 | 0301-20 | 250 in stock | $6.11 | Add to cart |
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Magic Plastics Fitting 0301-15 | 0301-15 | 204 in stock | $5.67 | Add to cart |


























































