This engine uses an F7RTC spark plug, but will also work with an F6RTC spark plug.
NorthStar c180 Horizontal OHV Engine with Recoil Start, 179cc, 3/4in. x 2-7/16in. Shaft

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- OHV overhead valve design
- CDI ignition system with recoil start featuring compression release for first pull starts
- Bolt circle: 3 5/8in.
- Mounting base: 6.378in.L x 3.15in.W (approx.)
- Cast-iron cylinder sleeve reduces bore wear to extend engine life and reduce emissions and oil consumption
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Description
Key Specs
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Q & A
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Product Summary
Replacement compatibility may vary based on engine shaft, mounting plate, dimensions, and other specifications. Always verify specifications prior to purchase. Please see product manual for additional information.
What's Included
- (1) 179cc horizontal OHV engine (1) Spark plug wrench
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Features + Benefits

- OHV overhead valve design
- CDI ignition system with recoil start featuring compression release for first pull starts
- Bolt circle: 3 5/8in.
- Mounting base: 6.378in.L x 3.15in.W (approx.)
- Cast-iron cylinder sleeve reduces bore wear to extend engine life and reduce emissions and oil consumption
- Easy-to-install model for small engine needs
- Heavy-duty 3.3L metal fuel tank
- USDA forestry approved
- Spark Arrestor
- Forged-steel crankshaft for superior strength in high-torque PTO applications
- Dual ball bearings reduce friction and wear, delivering smooth operation and longer life
- Internal oil splash enhancement system delivers extra lubrication
- Sound pressure balanced muffler
- Black aluminum alloy cylinder head cover
- All-metal camshaft
- Upgraded deep-groove ball bearing
- Low oil shutdown turns engine off if it runs low on oil, preventing serious damage or failure
- Pleated paper air filter and foam pre-cleaner for superior protection from harmful debris
- Side air ports limit debris entry
- 5-year limited warranty
Key Specs
| Attribute | Specification |
|---|---|
item# | 114654 |
Brand | NorthStar |
Manufacturer's Warranty | 5 year limited warranty |
Ship Weight | 45.0 LB |
Engine Displacement | 179 cc |
Engine Type | OHV |
Shaft Diameter | 3/4 in |
Shaft Diameter Metric | 19.05 mm |
Shaft Length | 2.43 in |
Shaft Length Metric | 61.7 mm |
Start Type | Recoil |
Shaft Keyway | 1-51/64 in |
Net Torque | 9.5 ft-lbs. |
Crankshaft | SAE J609EXT3 Straight Key W/shaft Dia.: 19.050mm (0.750in.) - Nominal |
PTO Height | 4.17 in |
Cylinders (qty.) | 1 |
Cylinder Bore | 2.56 |
Net Power Output | 3.7 HP |
Compression Ratio | 8.5:1 |
Fuel Tank | Yes |
Fuel Tank Capacity | 3.49 qt |
| Attribute | Specification |
|---|---|
Oil Capacity | 0.58 qt |
Low Oil Shutdown | Yes |
Low Oil Alert | Yes |
Shaft Rotation (From PTO Shaft Side) | Counter Clockwise |
Governor System | Yes |
Ignition System | Transitorical Configuration |
Carburetor | Carburated |
Lubrication System | Splash |
Bearing Type | Ball |
Auto Compression Release | Yes |
Cooling System | Air |
Bore | 2.55 in |
Stroke | 2.125 in |
Air Cleaner Type | Foam+paper |
Choke Control | Manual |
Throttle Control | Adjustable |
Charging System Amps | No |
Muffler Included | Yes |
Bolt Circle | 3.625 in |
Mounting Base Length | 6.378 in |
Mounting Base Width | 3.15 in |
Reviews
Questions & Answers
Questions
-
· 6 months ago
What type of Spark plug does this motor use?
1 answer-
NorthstarExpert12· 6 months ago
Helpful?
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· 7 months ago
Where are these engines manufactured?
1 answer-
NorthstarExpert12· 7 months ago
This engine is manufactured to our specifications in China.
Helpful?
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· 10 months ago
What size bolt is the output shaft threaded for?
1 answer-
NorthstarExpert12· 10 months ago
The engine shaft includes a 5/16"-24 UNF 2B threaded hole with a tap depth of 15.4 mm (0.64").
Helpful?
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· a year ago
How many hp is it.
1 answer-
NorthstarExpert12· a year ago
The net power output of this engine is 3.7 HP.
Helpful?
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· a year ago
Does this motor have a 6 to 1 reduction
1 answer-
NorthstarExpert12· a year ago
At this time, we do not offer a NorthStar engine with a 6:1 gear reduction.
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Warranty
Manufacturer's Warranty
5 year limited warranty
Extend Your Warranty Coverage with a Northern Protection Plan (NPP)
Replacement Plan — 1 Year
A Northern Protection Plan is available after adding the product to your shopping cart.
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Specifications
179 cc
270 cc
270 cc
688 cc
OHV
GX Series OHV Commercial-duty
GX Series OHV Commercial-duty
GX Series OHV V-twin Commercial-duty
3/4 in
1 in
1 in
1 in
19.05 mm
-
-
-
2.43 in
3.23 in
3.23 in
2.9 in
61.7 mm
-
-
-
Recoil
Recoil
Electric and Recoil
Electric
1-51/64 in
-
0.25 in
0.25 in
9.5 ft-lbs.
14.1 ft-lbs.
14.1 ft-lbs.
35.6 ft-lbs.
SAE J609EXT3 Straight Key W/shaft Dia.: 19.050mm (0.750in.) - Nominal
H-type
H-type
Q-type
4.17 in
5.25 in
5.25 in
5.25 in
1
1
1
2
2.56
Cast Iron
Cast Iron
Integrated
3.7 HP
8.5 HP
8.5 HP
20.8 HP
8.5:1
8.5:1
8.5:1
9.3:1
Yes
-
-
No
3.49 qt
5.6 qt
5.6 qt
-
0.58 qt
1.16 qt
1.16 qt
2 qt
Yes
-
-
-
Yes
-
-
Yes
Counter Clockwise
Counter Clockwise
Counter Clockwise
Counter Clockwise
Yes
Centrifugal Mechanical
Centrifugal Mechanical
Mechanical
Transitorical Configuration
Electronic
Electronic
Electonic, Digital CDI W/variable Ignition Timing
Carburated
Float, External Vent
Float, External Vent
2-barrel, Fuel Cut Solenoid, Inner Vent
Splash
Splash
Splash
Full Pressure
Ball
-
-
-
Yes
-
-
-
Air
Air
Air
Air
2.55 in
3 in
3 in
3.1 in
2.125 in
2.3 in
2.3 in
2.8 in
Foam+paper
Dual Element
Dual Element
Dual Element
Manual
Manual
Manual
Remote
Adjustable
Manual
Remote
Remote
No
-
-
20
Yes
-
-
No
3.625 in
-
-
-
6.378 in
-
-
-
3.15 in
-
-
-
-
Yes
Yes
-
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