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9920287-1-M-Walbro-21-145-1-Cover Mtrg Diaphragm
Part Location Diagram of 21-145-1 Walbro Cover Mtrg Diaphragm
See part 4 in the diagram
( Grid squares measure 1x1 inch )
9920287-1-S-Walbro-21-145-1-Cover Mtrg Diaphragm Part Location Diagram of 21-145-1 Walbro Cover Mtrg Diaphragm
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Cover Mtrg Diaphragm 21-145-1

 Fits your WS-5!
$ Price Match
OEM badge Official OEM
$ 6.51
  Special Order
 Fits your WS-5!
PartSelect Number PS9920287
Manufacturer Part Number 21-145-1
Manufactured by Walbro for Walbro, Briggs and Stratton

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Why buy the real thing?

OEM stands for Original Equipment Manufacturer. Simply put, this means that the company who made your appliance is also supplying the replacement part for it.

  • OEM from PartSelect
  • Genuine brand name
  • Guaranteed to fit
  • Superior quality and durability
  • 1 year warranty
  • Generic
  • Unknown manufacturer
  • No fit guarantee
  • Inconsistent quality and lifespan
  • Limited warranty and support
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Troubleshooting
This part works with the following products:
  • Engine
Part# 21-145-1 replaces these:
21-145, 21-145-1, 21-495
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Questions and Answers

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Model Cross Reference
This part works with the following models:
PartSelect Number: PS9920287
Manufacturer Part Number: 21-145-1
Brand
Model Number
Description
Briggs and Stratton
141300
Engine - Engine
Briggs and Stratton
141300SERIES
Engine - Engine
Briggs and Stratton
142300
Engine - Engine
Briggs and Stratton
142300SERIES
Engine - Engine
Briggs and Stratton
143300
Engine - Engine
Briggs and Stratton
143300SERIES
Engine - Engine
Walbro
RWJ-4-1
Engine - Walbro Small Engine Model RWJ-4-1 (RWJ41, RWJ 4 1) Parts
Walbro
RWJ-4B-1
Engine - Walbro Small Engine Model RWJ-4B-1 (RWJ4B1, RWJ 4B 1) Parts
Walbro
SDC-30-1
Engine - Carburetor
Walbro
SDC-45-1
Engine - Carburetor
Walbro
WB-26-1
Engine - Carburetor
Walbro
WB-34-1
Engine - Carburetor
Walbro
WJ-1-1
Engine - Carburetor
Walbro
WJ-10-1
Engine - Carburetor
Walbro
WJ-100-1
Engine - Carburetor
Walbro
WJ-106-1
Engine - Carburetor
Walbro
WJ-12-1
Engine - Carburetor
Walbro
WJ-13-1
Engine - Carburetor
Walbro
WJ-18-1
Engine - Carburetor
Walbro
WJ-19-1
Engine - Carburetor
Walbro
WJ-2-1
Engine - Carburetor
Walbro
WJ-20-1
Engine - Carburetor
Walbro
WJ-21-1
Engine - Carburetor
Walbro
WJ-23-1
Engine - Carburetor
Walbro
WJ-24-1
Engine - Carburetor
Walbro
WJ-26-1
Engine - Carburetor
Walbro
WJ-27-1
Engine - Carburetor
Walbro
WJ-28-1
Engine - Carburetor
Walbro
WJ-3-1
Engine - Carburetor
Walbro
WJ-32-1
Engine - Carburetor
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Customer Service Representative

Get in touch, we're here to help!

1-866-319-8402 Monday to Saturday
8am - 8pm EST

Contact Customer Service
Cover Mtrg Diaphragm
$ 6.51
  Special Order
✖
Stock Status
 In Stock

Item is in stock and is estimated to be delivered in 2-3 business days via Standard Shipping.

 On Order

Item is not in stock and usually ships 3-5 business days from the time you place your order.

 Special Order

Item is not in stock and usually ships 10-15 business days from the time you place your order.

 NLA - No Longer Available

This item is no longer being made by the manufacturer, and cannot be added to your shopping cart.