Flotec
Water Pump

Model # FP4150 Official Flotec well pump

Here are the diagrams and repair parts for Official Flotec FP4150 well pump, as well as links to manuals and error code tables, if available.

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Model diagram and schematic

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Showing 7 of 7 parts  |

Seal & O-ring Kit (includes Key #'s 2,4,10,16) RPK-35

#NI01

All parts diagram

Seal & o-ring kit (includes key #'s 2,4,10,16)

Part #RPK-35

The manufacturer no longer makes this part, and there's no substitute part

Pressure Switch Tubing (includes Key #'s 6(3),7) FPASFK

#NI07

All parts diagram

Pressure switch tubing (includes key #'s 6(3),7)

Part #FPASFK

The manufacturer no longer makes this part, and there's no substitute part

Overhaul Kit 1 Hp (fp4150) (includes Key #'s 1a,2,4,5,8,9,10,11(3),12(3),13,14) RPK-210SW

#NI04

All parts diagram

Overhaul kit 1 hp (fp4150) (includes key #'s 1a,2,4,5,8,9,10,11(3),12(3),13,14)

Part #RPK-210SW

The manufacturer no longer makes this part, and there's no substitute part

Body Pump Assembly (313) (incl. Key #'s 2,6,10,15,16,1/4" Npt Plug(2), 1/2" Npt Plug/(312)(incl. Key #'s 2,6,13,14,15,1/4" Npt Plug(2), 1/2" Npt Plug) R176-73

#NI05

All parts diagram

Body pump assembly (313) (incl. key #'s 2,6,10,15,16,1/4" npt plug(2), 1/2" npt plug/(312)(incl. key #'s 2,6,13,14,15,1/4" npt plug(2), 1/2" npt plug)

Part #R176-73

The manufacturer no longer makes this part, and there's no substitute part

Overhaul Kit 3/4 Hp (fp4157) (includes Key #'s 1a,2,4,5,8,9,10,11(3),12(3),13,14) RPK-207SW

#NI03

All parts diagram

Overhaul kit 3/4 hp (fp4157) (includes key #'s 1a,2,4,5,8,9,10,11(3),12(3),13,14)

Part #RPK-207SW

The manufacturer no longer makes this part, and there's no substitute part

Overhaul Kit 1/2 Hp (fp4155) (includes Key #'s 1a,2,4,5,8,9,10,11(3),12(3),13,14) RPK-205SW

#NI02

All parts diagram

Overhaul kit 1/2 hp (fp4155) (includes key #'s 1a,2,4,5,8,9,10,11(3),12(3),13,14)

Part #RPK-205SW

The manufacturer no longer makes this part, and there's no substitute part

Pressure Switch (30-50)(includes Key #3) TC2151

#NI06

All parts diagram

Pressure switch (30-50)(includes key #3)

Part #TC2151

The manufacturer no longer makes this part, and there's no substitute part

Symptoms for gas walk-behind mowers

Choose a symptom to see related walk-behind mower repairs.

Main causes: damaged cutting blade, loose cutting blade, damaged flywheel key, engine needs tune up…

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Main causes: engine needs tune up, dirty or clogged carburetor, damaged flywheel key…

Main causes: drive control cable failure, worn or broken drive belt, bad transmission, broken drive wheel…

Main causes: stale gas, engine needs tune up, bad spark plug, dead battery, bad recoil starter, faulty safety switch, ba…

Main causes: dirty carburetor, bad spark plug, clogged air filter, engine choke problems, clogged gas cap vent…

Repair guides for gas walk-behind mowers

These step-by-step repair guides will help you safely fix what’s broken on your walk-behind lawn mower.

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How to rebuild a lawn mower carburetor

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How to replace a lawn mower recoil starter on an OHV engine

How to replace a lawn mower recoil starter on an OHV engine

Replace the recoil starter if it doesn't move when you pull the starter rope.…

Repair difficulty
Time required
 15 minutes or less
How to replace a lawn mower wheel

How to replace a lawn mower wheel

Learn how replace a damaged wheel on a walk-behind lawn mower—it's a quick, easy fix.…

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Time required
 15 minutes or less

Articles and videos for gas walk-behind mowers

Use the advice and tips in these articles and videos to get the most out of your walk-behind lawn mower.

How to remove a lawn mower blade using a removal tool

How to remove a lawn mower blade using a removal tool

Learn how a blade removal tool makes replacing the blade easier and safer…

How to sharpen a lawn mower blade

How to sharpen a lawn mower blade

A dull blade leaves grass tips tattered. Sharpen it several times a season. Here's how.…

Lawn mower won't start troubleshooting video: can't pull recoil pull cord

Lawn mower won't start troubleshooting video: can't pull recoil pull cord

A blade obstruction, bad recoil starter or locked-up engine can prevent the pull cord on your mower from working. See ho…