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John Deere D125 Maintenance
The
John Deere D125 lawn tractor was manufactured from 2014 to 2017. The JD D125
powerline components: Briggs and Stratton 40R877 4-cycle V-twin cylinder OHV
air-cooled gasoline engine and Tuff Torq T40 belt-driven hydrostatic
transmission with infinite forward and reverse gears.
A 40.1 cubic inches (655 cc) engine has a cylinder bore of 2.97" (75
mm), piston stroke of 2.89" (73 mm), and rated power of 20 hp (14.9 kW).
Max. forward speed - 5.5 mph (8.8 km/h), maximum reverse speed - 3.2 mph
(5.1 km/h).
The John Deere D125 is equipped with a manual steering system, disc
brakes, 15x6.00-6 front tires, and 20x8.00-8 rear tires. The wheel base
is 49" (1240 mm). The lawn tractor is compatible with the following
attachments: 42" mid-mount 2-blade mower deck with cutting height of
1-4" (25-102 mm), 43.25" front-mount 2-stage snowblower with clearing
height of 18" (450 mm), and 46" front blade with mechanical lift system.
Engine oil capacity, qts (L) |
2.0 (1.9) |
Transmission fluid capacity, qts (L) |
2.45 (2.3) |
Fuel tank capacity, gal (L) |
2.4 (9.1) |
Recommended Oil and Fluid |
Engine oil type |
Turf-Gard, Plus-4, SAE 10W-30, 10W-40, 5W-30. API Service category CH or higher |
Transmission fluid type |
SAE 10W-30, 5W-50 Synthetic Oil |
Check fuel level |
Every 10 hours |
Check engine oil level |
Every 10 hours |
Clean air intake screen |
Every 10 hours |
Check tire pressure and brakes |
Every 10 hours |
Check and tighten loose hardware |
Every 10 hours |
Lubricate front axle pivot |
Every 25 hours |
Lubricate front wheel spindles and wheel bushings |
Every 25 hours |
Check transmission fluid |
Every 25 hours |
Change engine oil |
Every 50 hours |
Replace engine oil filter |
Every 50 hours |
Clean air filter precleaner (if equipped) |
Every 50 hours |
Check air filter element |
Every 50 hours |
Clean engine cooling fins |
Every 50 hours |
Replace fuel filter |
Every 50 hours |
Clean spark plug |
Every 50 hours |
Check and clean battery terminals |
Every 50 hours |
Sharpen or replace mower blades |
Every 50 hours |
Check and adjust mower drive belt |
Every 50 hours |
Clean mower deck |
Every 50 hours |
Check and level mower deck |
Every 50 hours |
Lubricate mower pivot points |
Every 50 hours |
Replace spark plug |
Every 100 hours |
Charge battery |
Every 100 hours |
Check engine idle speeds |
Every 100 hours |
Check carburetor adjustment |
Every 100 hours |
Replace air filter precleaner (if equipped) |
Every 200 hours |
Replace air filter element |
Every 200 hours |
Change transmission fluid |
Every 200 hours |
Check and adjust valve clearance |
Every 200 hours |
Engine oil filter part number |
AM125424 |
Engine fuel filter part number |
AM116304 |
Engine air filter part number |
MIU13963 |
Spark plug part number |
M78543, MIU11020 |
Mower blade part number |
GX22151 |
Traction drive belt part number |
GX20006 |
Mower drive belt part number |
GX20072 |
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Lawn and Garden Tractors Technical Specs |