John Deere L120 Riding Mower Parts
The John Deere L120 riding mower, known for its reliability and ease of use, was a popular choice for homeowners. Typically manufactured between 2003 and 2005, it features a powerful Kawasaki engine ranging from 18 to 20 HP. Offered with a 48-inch deck, the L120 provided efficient cutting performance for medium to large lawns.
The John Deere L120 was introduced as part of the L-series lineup, offering a balance of power and features for residential lawn care. It was equipped with a Kawasaki engine, typically ranging from 18 to 20 horsepower, and engine displacement around 603cc. A hydrostatic transmission provided smooth and easy operation. The L120 featured a 48-inch mower deck, suitable for efficiently mowing larger lawns. Key features included an electric PTO for easy blade engagement, cruise control, and a comfortable seat. While primarily designed for residential use, its robust construction and powerful engine made it capable of handling moderate acreage. The L120 distinguished itself from other models in the L-series with its larger deck size and correspondingly increased engine power, offering greater productivity and cutting capacity than smaller models like the L100 and L110.
Specifications
| Engine | Kawasaki 18-20 HP 603cc V-Twin |
|---|---|
| Transmission | Hydrostatic |
| Deck Size | 48 inches |
| Ground Speed | 0-5.5 mph |
| Fuel Capacity | 2.4 gallons |
| Weight | 520 lbs |
| Years Produced | 2003-2005 (approx.) |
Maintenance Tips
- Belt Replacement: Inspect belts regularly for wear and tear. Replace deck belts every 200-300 hours of use or as needed, and drive belts every 400-500 hours.
- Blade Sharpening: Sharpen mower blades every 25 hours of use or more frequently if you notice reduced cutting performance. Dull blades tear grass, making it susceptible to disease.
- Filter Changes: Change the engine oil and filter every 50 hours of use or at least once a year. Replace the air filter every 100 hours to maintain optimal engine performance.
- Seasonal Storage: Before storing the mower for the winter, stabilize the fuel, change the oil, lubricate all grease fittings, and disconnect the battery. Store the mower in a dry, sheltered location.
History & Background
The John Deere L120 was introduced as a mid-range model within the L-series, offering a step up in power and cutting capacity from the smaller L-series mowers. There were no major redesigns during its production run. It provided a dependable mowing solution for homeowners with larger lawns.
Frequently Asked Questions
What size deck does the John Deere L120 have?
The John Deere L120 is equipped with a 48-inch mower deck.
What engine is in the John Deere L120?
The John Deere L120 typically uses a Kawasaki 18-20 HP V-Twin engine.
What belt do I need for my John Deere L120?
The John Deere L120 uses a 48-inch deck belt. Refer to your John Deere parts manual for the correct OEM part number. Drive belt part numbers also vary, so check your manual.
What blades fit the John Deere L120?
The John Deere L120 requires two 24-inch blades to fit the 48-inch deck.

B1OF280 - Oil Filter
SKU: B1OF280
10504 in stock

B1FF100B - In Line (qty 20) Fuel Filter
SKU: B1FF100B
73 in stock

MIU14388 - Regulator
SKU: MIU14388
40 in stock

B1CL19424 - PTO CLUTCH
SKU: B1CL19424
33 in stock

AUC15346 - Solenoid
SKU: AUC15346
295 in stock

MIU14395 - JOHN DEERE
SKU: MIU14395
44 in stock

MIU11515 - JOHN DEERE
SKU: MIU11515
33 in stock

B1SB7726 - Prefilter Air Filter
SKU: B1SB7726
13 in stock

B1SB2808 - Air Filter
SKU: B1SB2808
11 in stock

B1AF336 - Air Filter
SKU: B1AF336
22 in stock

B1AF231 - Prefilter Air Filter
SKU: B1AF231
22 in stock

B1AF218 - Prefilter Air Filter
SKU: B1AF218
55 in stock

B1AF123 - Prefilter Air Filter
SKU: B1AF123
33 in stock

B1AF113 - Air Filter
SKU: B1AF113
44 in stock

B1AF104 - Prefilter Air Filter
SKU: B1AF104
55 in stock

B1PD5044 - 11/16" 17" PRED BLADE-MOWER
SKU: B1PD5044
55 in stock

B1JD6014 - 13/32" 17" XHT BLADE-MOWER
SKU: B1JD6014
33 in stock

M82538 - JOHN DEERE
SKU: M82538
61 in stock

M155885 - JOHN DEERE
SKU: M155885
48 in stock

M155452 - JOHN DEERE
SKU: M155452
82 in stock

GY20571 - JOHN DEERE
SKU: GY20571
351 in stock

GX20305 - Platform Drive Belt
SKU: GX20305
351 in stock

GX20006 - Mower Traction Drive Belt
SKU: GX20006
791 in stock

GXH47846 - JOHN DEERE
SKU: GXH47846
83 in stock
