Case IH MX120 Tractor Parts
MX120 parts and accessories
The Case IH MX120 tractor, manufactured from 1997 to 2002, was a popular choice for farmers needing a reliable and versatile machine. Powered by a Cummins 5.9L diesel engine producing approximately 120 horsepower, and boasting a robust PTO, the MX120 provided ample power for a variety of agricultural tasks. Its comfortable cab and ease of operation made it a favorite for both row crop and livestock operations.
The Case IH MX120 was introduced as part of the MX series, a line of tractors designed to offer enhanced performance and operator comfort compared to previous models. Production ran from 1997 to 2002. Under the hood lies a Cummins 5.9L 6-cylinder diesel engine, generating around 120 horsepower. This powerplant delivers robust performance for demanding tasks. The transmission is typically a partial powershift, offering smooth gear changes under load. The MX120 features a 100 PTO horsepower rating, available with both 540 and 1000 RPM options. Hydraulic capacity is rated at approximately 27.7 GPM, with options for multiple remote valves. The 3-point hitch is a Category II, offering a lift capacity of around 6,700 lbs. Common applications for the MX120 include row crop work such as planting and cultivating, hay production with balers and mowers, livestock feeding and material handling, and light tillage operations. The MX120 distinguished itself with its comfortable cab, reliable engine, and versatile capabilities, making it a valuable asset for farmers across various agricultural sectors.
Specifications
| Engine | Cummins 5.9L 120 HP Diesel |
|---|---|
| PTO HP | 100 HP @ 540/1000 RPM |
| Transmission | Partial Powershift, 16 Forward / 12 Reverse |
| Hydraulics | 27.7 GPM, 2-3 remotes |
| 3-Point Hitch | Category II, 6700 lbs |
| Fuel Capacity | 44 gallons |
| Weight | 13,420 lbs |
| Years Produced | 1997-2002 |
Maintenance Tips
- Check engine oil and filter regularly, replacing them every 250-300 hours or as recommended by the manufacturer. Use the correct oil type specified for Cummins diesel engines.
- Inspect hydraulic fluid levels and filter condition frequently, replacing the hydraulic filter at recommended intervals to prevent contamination and maintain optimal hydraulic system performance.
- Use high-quality fuel and add a fuel stabilizer during seasonal storage to prevent fuel degradation and injector clogging. Change fuel filters regularly.
- Before storing the tractor for the off-season, thoroughly clean it, grease all fittings, and disconnect the battery to prevent corrosion and maintain its condition.
History & Background
The Case IH MX120 was launched in 1997 as part of the MX series, representing a significant upgrade in terms of operator comfort and performance. There were no major redesigns during its production run, with minor updates focusing on refinements rather than fundamental changes. The MX120's enduring popularity highlights its reliability and versatility in the agricultural landscape.
Frequently Asked Questions
What engine is in the Case Ih MX120?
The Case IH MX120 is equipped with a Cummins 5.9L 6-cylinder diesel engine, producing approximately 120 horsepower.
What is the PTO horsepower on a MX120?
The PTO horsepower of the Case IH MX120 is approximately 100 HP, and it offers both 540 and 1000 RPM PTO speed options.
What oil filter fits the MX120?
The Case IH MX120 typically uses a Fleetguard LF3349 or equivalent oil filter. Cross-references include Wix 51791 and Fram PH3976A. Always verify with your parts supplier for the most up-to-date information.
What are common parts needed for the MX120?
Common parts needed for the Case IH MX120 include engine oil filters, fuel filters, hydraulic filters, air filters, belts for the engine and accessories, hydraulic seals for cylinders and valves, steering components (tie rod ends, ball joints), and clutch components for tractors with manual transmissions.

OK2764F6 - Major Engine Overhaul Kit (0.50 MM) .020"- Fracture Split Conn Rod
SKU: OK2764F6
Out of stock

OK27646 - Major Engine Overhaul Kit (0.50 MM) .020"
SKU: OK27646
Out of stock

OK2747F6 - Major Engine Overhaul Kit (Std.) - Fracture Split Conn Rod
SKU: OK2747F6
Out of stock

OK27476 - Major Engine Overhaul Kit (Std.)
SKU: OK27476
Out of stock

J958258 - Dampener Pulley
SKU: J958258
6 in stock

J937404 - Engine Oil Pump
SKU: J937404
14 in stock

J929490 - Fuel Injector
SKU: J929490
33 in stock

J905427 - Flywheel Ring Gear
SKU: J905427
22 in stock

J900267 - Seal (1ea)
SKU: J900267
272 in stock

J802770 - Turbocharger
SKU: J802770
31 in stock
IK2764F6 - In-Frame Engine Overhaul Kit (0.50 MM) .020"- Fracture Split Conn Rod
SKU: IK2764F6
Out of stock

IK27646 - In-Frame Engine Overhaul Kit (0.50 MM) .020"
SKU: IK27646
Out of stock
IK2747F6 - In-Frame Engine Overhaul Kit (Std.) - Fracture Split Conn Rod
SKU: IK2747F6
Out of stock
IK27476 - In-Frame Engine Overhaul Kit (Std.)
SKU: IK27476
Out of stock

87648717 - Fuel Lift Pump
SKU: 87648717
Out of stock

87473338 - Fuel Pump
SKU: 87473338
33 in stock

87420952 - Fuel Shutoff (12V) Solenoid Valve
SKU: 87420952
105 in stock

87416028 - Oil Cooler
SKU: 87416028
10 in stock

87319987 - Fuel Lift Pump
SKU: 87319987
143 in stock

8604802 - Hydraulic Oil Filter Restrict Pressure Switch
SKU: 8604802
92 in stock

84602136 - Locking w/ 2 Keys Fuel Cap
SKU: 84602136
169 in stock

84385969 - Fuel Cap
SKU: 84385969
327 in stock

84145405 - Connecting Rod
SKU: 84145405
8 in stock

3118299R1 - Thermostat Burner Heater Plug
SKU: 3118299R1
240 in stock
