Case IH 674 Tractor Parts
674 parts and accessories
The Case IH 674 tractor, manufactured from 1972 to 1975, was a reliable workhorse on farms across North America. Powered by a robust 58 horsepower diesel engine, and boasting around 52 PTO horsepower, the 674 offered a balance of power and economy. Its simple design and dependable performance made it a favorite for various agricultural tasks, contributing significantly to its popularity among farmers.
The Case IH 674 was introduced in 1972 as a successor to the International Harvester 674, continuing the legacy of reliable utility tractors. Production spanned until 1975. The tractor features a 58 horsepower International Harvester D-239 3.9L 4-cylinder diesel engine, known for its durability and fuel efficiency. Transmission options included a gear-type transmission with 8 forward and 4 reverse speeds. The 674 delivered approximately 52 PTO horsepower at 540 RPM, suitable for powering a range of implements. Its hydraulic system provided around 8.5 GPM flow, sufficient for operating hydraulic remotes and the Category II 3-point hitch with a lift capacity of around 3,300 lbs. This model was commonly used for row crop operations, haying, livestock management, and light tillage tasks. The Case IH 674 distinguished itself with its simple mechanics, ease of maintenance, and a comfortable operator platform relative to other tractors of its era.
Specifications
| Engine | International Harvester D-239 58 HP 239ci Diesel |
|---|---|
| PTO HP | 52 HP @ 540 RPM |
| Transmission | Gear Type, 8 Forward / 4 Reverse |
| Hydraulics | 8.5 GPM, 2 remotes (optional) |
| 3-Point Hitch | Category II, 3300 lbs lift capacity |
| Fuel Capacity | 16 gallons |
| Weight | 5,160 lbs |
| Years Produced | 1972-1975 |
Maintenance Tips
- Change engine oil and filter every 150-200 hours using a high-quality oil specified for diesel engines.
- Regularly inspect and clean the fuel system, including fuel filters, to prevent contamination and ensure optimal performance.
- Check hydraulic fluid levels and inspect hoses for leaks. Replace hydraulic filters according to the manufacturer's recommendations.
- Before seasonal storage, drain fluids, add fuel stabilizer, and grease all lubrication points to prevent corrosion and maintain functionality.
History & Background
The Case IH 674 marked a transition in the International Harvester lineup, continuing the popular '64' series with enhanced features. While not undergoing major redesigns during its short production run, its impact was significant due to its reliability and versatile performance. It's a tractor that is still being used by farmers today.
Frequently Asked Questions
What engine is in the Case Ih 674?
The Case IH 674 is powered by an International Harvester D-239 4-cylinder diesel engine, producing 58 horsepower and having a displacement of 239 cubic inches.
What is the PTO horsepower on a 674?
The Case IH 674 has a PTO horsepower rating of approximately 52 HP at 540 RPM.
What oil filter fits the 674?
The Case IH 674 typically uses a Fram PH2870A or equivalent oil filter. Cross-references include Wix 51258 and Baldwin B2.
What are common parts needed for the 674?
Common wear parts for the Case IH 674 include engine oil filters, fuel filters, hydraulic filters, fan belts, hydraulic seals, steering components (tie rod ends, kingpins), clutch disc and pressure plate, and PTO seals.

3136430R95 - Engine Oil Pump
SKU: 3136430R95
11 in stock

3136066R12 - VERTICAL EXHAUST MANIFOLD
SKU: 3136066R12
2 in stock

3136044R42 - Flywheel w/ 60883H Ring Gear
SKU: 3136044R42
26 in stock

3132895R93 - Balancer Assembly
SKU: 3132895R93
7 in stock

3132434R1 - Exhaust Manifold Gasket
SKU: 3132434R1
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3132018R2 - Connecting Rod Bushing
SKU: 3132018R2
395 in stock

3118299R1 - Thermostat Burner Heater Plug
SKU: 3118299R1
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3057781R11 - Connecting Rod (.030") Bearing
SKU: 3057781R11
2 in stock

3056879R11 - Connecting Rod (.020") Bearing
SKU: 3056879R11
273 in stock

3056834R11 - Connecting Rod (.010") Bearing
SKU: 3056834R11
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3055351R91 - Connecting Rod (Std) Bearing
SKU: 3055351R91
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3055215R3 - Rear Main Housing Gasket
SKU: 3055215R3
91 in stock

3055161R3 - Pan Gasket
SKU: 3055161R3
33 in stock
3055130R21 - Main Std Bearing
SKU: 3055130R21
23 in stock
3055129R21 - Main Std Bearing
SKU: 3055129R21
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3055060R1 - Valve Spring
SKU: 3055060R1
151 in stock

3055057R91 - Valve Keeper
SKU: 3055057R91
144 in stock

3055056R2 - Exhaust Valve
SKU: 3055056R2
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3055055R2 - Intake Valve
SKU: 3055055R2
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3055022R2 - Valve Guide
SKU: 3055022R2
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17C52 - Fuel Sediment Bowl & Gasket
SKU: 17C52
26 in stock

17C51 - Fuel Bowl
SKU: 17C51
176 in stock

17C31-10 - FUEL FILTER; Pack/10 SCREEN
SKU: 17C31-10
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K961268 - SWITCH W/KEYS
SKU: K961268
102 in stock
