The initial replacement of the engine oil is to be done after the first month or 20 hours of operation. After the first month, the engine oil should be replaced every 6 months or 100 hours. The spark plug should be changed every 6 months or 100 hours.
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Yamaha, Inverter Generator, Surge Watts 4500, Rated Watts 4000, Voltage 120, Model# EF45ISEZ

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- Owner's Manual, Tool Kit, Battery
- Protection - The EF4500ISE Inverter Generator with CO Sensor – Engine shuts off if a high level of carbon monoxide is detected.
- Power - RV Ready – 30-amp RV outlet for all your high power needs.
- Reliability - The EF4500iSE offers a 3 Year Limited Warranty for your peace of mind.
- Ease of Operation - The EF4500ISE comes standard Electric Start – Effortless turn the key to start.
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Description
Key Specs
Reviews
Q & A
Warranty
Compare
Product Summary
What's Included
- (1) Inverter Generator, Owner's Manual, Tool Kit, Battery

Features + Benefits
- Owner's Manual, Tool Kit, Battery
- Protection - The EF4500ISE Inverter Generator with CO Sensor – Engine shuts off if a high level of carbon monoxide is detected.
- Power - RV Ready – 30-amp RV outlet for all your high power needs.
- Reliability - The EF4500iSE offers a 3 Year Limited Warranty for your peace of mind.
- Ease of Operation - The EF4500ISE comes standard Electric Start – Effortless turn the key to start.
- Maximum AC Output – 4500 Watts.
- Overload Indicator – Dual 20A Outlets.
- Low Oil Warning System – Shuts the engine off to protect the engine if the oil level drops.
- Durable Yamaha MZ360 Engine – Designed for long life.
- Noise Block Sound Reduction System – Very quiet 58-60 decibels.
- Automatic Choke – Easy starting even in cold climates.
- Pure Sine Wave (Pulse Width Modulation) Inverter System — Run electronic equipment, appliances, variable-speed power tools and computers
- Power Meter – Easy to read meter indicates the amount of power being used and the amount that’s available.
- Fuel Gauge – Indicates amount of gasoline to indicate refueling interval.
- 50 state legal – EPA & CARB
- Ground Earth Terminal – Prevents electric shock.
- Yamaha Extended Service — Additional 1, 2 or 3 years of Y.E.S. is available
Key Specs
| Attribute | Specification |
|---|---|
item# | 4894646 |
Brand | Yamaha |
Manufacturer's Warranty | 3 year limited warranty |
Ship Weight | 249.0 LB |
Surge Watts | 4,500 |
Rated Watts | 4,000 |
Voltage | 120 |
Max. Amps | 37.5 |
Fuel Type | Gasoline |
Engine Brand | Yamaha |
Engine Model | Yamaha MZ360 |
Engine Displacement | 357 cc |
Noise Level | 58 dB |
Enclosure Material | Molded Plastic |
Start Type | Electric |
Fuel Capacity | 4.5 Gal |
Full Load Fuel Consumption | 8 GPH |
| Attribute | Specification |
|---|---|
Half-Load Run Time | 11 hr |
Number of Outlets | 3 |
Outlet Type | Duplex & Twistlock |
Battery Required | Yes |
Battery Included | Yes |
Auto Shutdown | No |
Overload Protection | Yes |
Low Oil Shutdown | Yes |
Hour Meter | Yes |
Hertz | 60 |
Engine Cooling | Air |
Built-in Inverter | Yes |
Total Harmonic Distortion | <2.5 |
CARB Compliant | Yes |
Product Weight | 194.0000 lb |
Dimensions L x W x H (in.) | 30.7 x 24.3 x 27.2 in |
Reviews
Questions & Answers
Questions
-
· 3 years ago
How often to Service or Replace oil and Spark Plug?
1 answer-
ProductExpert11· 3 years ago
Helpful?
-
Warranty
Manufacturer's Warranty
3 year limited warranty
Extend Your Warranty Coverage with a Northern Protection Plan (NPP)
Repair Plan — 1 Year
A Northern Protection Plan is available after adding the product to your shopping cart.
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Item # 4894646
Shipping: Sold Out
- $2299.99
Shipping:
Free shipping (lower 48 states) - Factory shippedHeavy/large item. Lift gate service available.
Store Pickup:
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- $1599.99
Shipping:
Free shipping (lower 48 states) - Factory shippedHeavy/large item. Lift gate service available.
Store Pickup:
Not available - online only
- $4999.00
Shipping:
Free shipping (lower 48 states) - Factory shippedHeavy/large item. Lift gate service available.
Store Pickup:
Not available - online only
Specifications
4,500
8,500
900
16,000
4,000
700
7,250
13,000
120
120/240
120/240
120/240
37.5
70.8
75
108.32
Gasoline
Dual Fuel - Natural Gas and Propane
Tri Fuel - Gasoline, Propane, and Natural Gas
Gasoline and Propane
Yamaha
OEM
OEM
DuroMax
Yamaha MZ360
Champion 420cc
Champion 420cc
XP16000iH
357 cc
420 cc
420 cc
744 cc
58 dB
61 dB
72 dB
66.9 dB
Molded Plastic
Thermoplastic Polyurethane
Thermoplastic Polyurethane
Metal
Electric
Electric and Recoil
Electric and Recoil
Recoil, Electric and Remote
4.5 Gal
5.3 Gal
4.3 Gal
10.5 Gal
8 GPH
-
-
1.95 GPH
11 hr
-
-
10.5 hr
3
-
-
6
Duplex & Twistlock
-
-
120/240
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
No
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
-
60
60
60
60
Air
Air
Air
Air
Yes
Yes
Yes
Yes
<2.5
Less than 3%
Less than 3%
3%
Yes
Yes
Yes
Yes
194.0000 lb
213.9000 lb
156.6000 lb
368.0000 lb
30.7 x 24.3 x 27.2 in
33.4 x 26.0 x 29.1 in
26.6 x 25.4 x 25.5 in
38.3 x 30.8 x 34.4 in
-
6,300
6,525
12,350
-
8,500
9,000
15,200
-
-
5,875
-
-
-
9,000
-
-
-
-
54.17



