Skip to Content
  • 2 Day Quick Delivery! 2 Day Quick Delivery!
  • 365 Day Return Policy! 365 Day Return Policy!
  • 15 million satisfied customers 15 million satisfied customers
  • Over 2.1 Million Parts In Stock Over 2.1 Million Parts In Stock
  • Repair ForumFree Tech Support!
  • Google Trusted Store Google Trusted Store

5-40-10 Parts

Some parts shown may not be for your model. To see parts for your model only, select it from "Matching Model Numbers" list on the left.

More
Kit-Needle Valve
Genuine Midwest Engine part
By: Midwest Engine
Part Number: 845290

 

More
$9.97
Compare At:
$10.97
You Save:
$1.00

Out Of Stock

Usually ships within 4 - 14 days

Add to Cart
Kit-Screw/Washer
Genuine Midwest Engine part
By: Midwest Engine
Part Number: 845300

 

More
$3.37
Compare At:
$3.71
You Save:
$0.34

Out Of Stock

Usually ships within 4 - 14 days

Add to Cart
Elbow-Intake
Genuine Midwest Engine part
By: Midwest Engine
Part Number: 845505

 

More
$47.75
Compare At:
$52.52
You Save:
$4.77

Out Of Stock

Usually ships within 4 - 14 days

Add to Cart
Head-Cylinder
Genuine Midwest Engine part
By: Midwest Engine
Part Number: 845588

 

More
$193.42
Compare At:
$212.76
You Save:
$19.34

Out Of Stock

Usually ships within 4 - 14 days

Add to Cart
Spring-Valve
Genuine Midwest Engine part
By: Midwest Engine
Part Number: 845589

 

More
$4.58
Compare At:
$5.04
You Save:
$0.46

Out Of Stock

Usually ships within 4 - 14 days

Add to Cart
Head-Cylinder
Genuine Midwest Engine part
By: Midwest Engine
Part Number: 845590

 

More
$193.42
Compare At:
$212.76
You Save:
$19.34

Out Of Stock

Usually ships within 4 - 14 days

Add to Cart
Solenoid-Starter
Genuine Midwest Engine part
By: Midwest Engine
Part Number: 845757

 

More
$152.70
Compare At:
$167.97
You Save:
$15.27

Out Of Stock

Usually ships within 4 - 14 days

Add to Cart
Nut
Genuine Midwest Engine part

Nut

By: Midwest Engine
Part Number: 845758

 

More
$1.54
Compare At:
$1.69
You Save:
$0.15

Out Of Stock

Usually ships within 4 - 14 days

Add to Cart
Elbow-Intake
Genuine Midwest Engine part
By: Midwest Engine
Part Number: 845920

 

More
$57.32
Compare At:
$63.06
You Save:
$5.73

Out Of Stock

Usually ships within 4 - 14 days

Add to Cart
Pump-Oil
Genuine Midwest Engine part
By: Midwest Engine
Part Number: 845983

 

More
$87.71
Compare At:
$96.48
You Save:
$8.77

Out Of Stock

Usually ships within 4 - 14 days

Add to Cart
Shield-Carburetor
Genuine Midwest Engine part
By: Midwest Engine
Part Number: 846006

 

More
$13.85
Compare At:
$15.23
You Save:
$1.38

Out Of Stock

Usually ships within 4 - 14 days

Add to Cart
Knob-Air Cleaner Cove
Genuine Midwest Engine part
By: Midwest Engine
Part Number: 846008

 

More
$8.92
Compare At:
$9.81
You Save:
$0.89

Out Of Stock

Usually ships within 4 - 14 days

Add to Cart
Shield-Carburetor
Genuine Midwest Engine part
By: Midwest Engine
Part Number: 846013

 

More
$22.97
Compare At:
$25.26
You Save:
$2.29

Out Of Stock

Usually ships within 4 - 14 days

Add to Cart
O Ring-Oil Gallery
Genuine Midwest Engine part
By: Midwest Engine
Part Number: 846027

 

More
$4.48
Compare At:
$4.92
You Save:
$0.44

Out Of Stock

Usually ships within 4 - 14 days

Add to Cart
Gasket-Crankcase 015
Genuine Midwest Engine part
By: Midwest Engine
Part Number: 846037

 

More
$35.63
Compare At:
$39.19
You Save:
$3.56

Out Of Stock

Usually ships within 4 - 14 days

Add to Cart
Washer Set-Friction
Genuine Midwest Engine part
By: Midwest Engine
Part Number: 846156

 

More
$19.80
Compare At:
$21.78
You Save:
$1.98

Out Of Stock

Usually ships within 4 - 14 days

Add to Cart
  • Over 2.1 Million Parts In Stock Over 2.1 Million Parts In Stock
  • 2 Day Quick Delivery! 2 Day Quick Delivery!
  • 365 Day Return Policy! 365 Day Return Policy!
  • Repair ForumFree Tech Support!
  • Google Trusted Store Google Trusted Store