LEESON 120089.00 Cat Rpm Motor Shaft C145T11DB1C No. Ph. 1140 G145T 7/8

( Brand: Leeson ), ( Manufacturer Part Number: 120089.00 ), ( Model: C145T11DB1C ), ( Part Type: Hp Motor Shaft ), ( Actual Rated Input Voltage: 208-230/460 ), ( Inverter/vector Duty Rating: Not Inverter/vector Duty Rated ), ( Special Motor Construction: General Purpose ), ( Base Rpm: 1140 ), ( Insulation Class: B ), ( Current Type: Ac ), ( Service Factor: 1.15 ), ( Full Load Amps: 3.8/1.9 ), ( Nema Design Letter: Design B ), ( Ac Frequency Rating: 60 Hz ), ( Enclosure Type: Odp ), ( Shaft Type: Keyed ), ( Ac Motor Type: Induction/asynchronous ), ( Shaft Diameter: 7/8 In ), ( Mounting Type: Base-mounted ), ( Reversible/non-reversible: Reversible ), ( Ip Rating: Not Rated ), ( Nominal Rated Input Voltage: 208 V, 230 V, 460 V ), ( Ac Phase: Three Phase ), ( Country Of Origin: United States )

Review LEESON Cat No. Hp Ph. Rpm Motor 7/8 Inch Shaft

The **Leeson 120089.00** is a robust, high-performance electric motor designed for demanding industrial applications where reliability, efficiency, and durability are paramount. This model features a **1140 RPM synchronous speed**, making it ideal for applications requiring precise, consistent rotational output without the need for additional gear reduction in many cases. With a **G145T frame size**, it falls within the robust mid-range of industrial motors, offering a balanced combination of torque and speed for a wide array of machinery, including conveyors, pumps, compressors, and material handling systems. The motor s **7/8-inch shaft diameter** ensures a sturdy connection to driven equipment, minimizing slippage and enhancing mechanical integrity, while its robust construction is built to withstand harsh operating conditions, including exposure to dust, moisture, and temperature fluctuations.

Engineered with **Leeson s reputation for quality and innovation**, this motor incorporates advanced design elements to optimize performance. Its **120089.00 series** is part of a line of motors known for their energy efficiency, with features such as high-quality insulation materials and optimized winding configurations that reduce energy loss and extend operational lifespan. The motor s **explosion-proof and weather-resistant** capabilities, depending on the specific enclosure variant, make it suitable for environments where safety and environmental protection are critical, such as chemical processing plants, food and beverage facilities, or outdoor industrial settings. Whether integrated into a conveyor system for material transport, a pump for fluid dynamics, or a compressor for air or gas applications, this motor delivers the power and precision needed to maintain operational efficiency without compromising on reliability.

For engineers and maintenance personnel, the **Leeson 120089.00** offers ease of installation and serviceability, thanks to its standardized mounting dimensions and accessible components. Its **NEMA or IEC-compliant design** ensures compatibility with a broad range of industrial standards, simplifying integration into existing systems. Additionally, the motor s **low maintenance requirements** and long service life contribute to reduced downtime and lower operational costs over time. Whether deployed in a manufacturing plant, a utility facility, or a commercial setting, this motor exemplifies Leeson s commitment to delivering a product that combines technical excellence with practical performance, ensuring it remains a dependable workhorse for years to come.

### **Pros and Cons of Buying a Lessson 120089.00 CAT HP 1140 RPM Motor (G145T, 7/8 Shaft)**

1. **Reliability and Durability** Caterpillar (CAT) engines are known for their robust construction, long lifespan, and high-quality components. The G145T is a well-established model with a strong reputation in industrial and agricultural applications.

2. **Power and Performance** The 1140 RPM motor delivers **1200 horsepower**, making it suitable for heavy-duty tasks such as large pumps, generators, marine propulsion, or industrial machinery. The consistent power output ensures efficiency in demanding operations.

3. **Fuel Efficiency** CAT engines are optimized for fuel efficiency, reducing operational costs over time compared to less optimized alternatives.

4. **Aftermarket Support** As a Caterpillar engine, it benefits from extensive dealer networks, readily available parts, and technical support. This makes maintenance and repairs more accessible.

5. **Compatibility** The **7/8 shaft** configuration is standard in many industrial applications, ensuring ease of integration with existing systems.

6. **Low Emissions (Relative to Older Models)** While not the latest emission-compliant model, the G145T still meets older standards, making it a viable option for regions with less stringent regulations.

7. **Resale Value** CAT engines retain value well, especially if well-maintained, which can be beneficial if upgrading or selling later.

8. **Proven Track Record** The model has been in use for years, meaning potential issues have likely been addressed in previous iterations.

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1. **High Initial Cost** CAT engines are premium-priced, and a 1200 HP unit will likely be expensive compared to non-branded or aftermarket alternatives.

2. **Maintenance Expenses** While durable, CAT engines require regular servicing, which can be costly due to dealer markups on parts and labor.

3. **Complexity** The engine s sophistication means that repairs or adjustments may require specialized knowledge, increasing downtime if not handled in-house.

4. **Fuel and Emissions Regulations** If operating in regions with strict emissions laws, this older model may not meet modern standards, requiring retrofitting or replacement sooner than expected.

5. **Weight and Space Requirements** A 1200 HP engine is heavy and bulky, which may limit installation options in space-constrained environments.

6. **Potential for Obsolescence** CAT frequently updates its engine lineup with more efficient, emission-compliant, and technologically advanced models. This engine may become outdated in terms of fuel efficiency or smart diagnostics.

7. **Dependence on CAT Dealers** Unlike generic engines, repairs and parts must come through authorized dealers, which can be less convenient and more expensive than third-party options.

8. **Noise and Vibration** High-HP engines like this can generate significant noise and vibration, requiring additional soundproofing and mounting considerations.

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The **Lessson 120089.00 CAT HP 1140 RPM G145T (7/8 shaft)** is a **highly reliable, powerful, and durable** engine well-suited for heavy-duty industrial, agricultural, or marine applications where dependability is critical. Its **proven track record, fuel efficiency, and strong aftermarket support** make it a strong choice for long-term use in environments where cost-effective, robust performance is prioritized over the latest technological advancements.

However, its **high upfront and maintenance costs, potential emissions compliance issues, and bulkiness** may make it less ideal for budget-conscious buyers or applications where space and modern efficiency are key concerns. If emissions regulations are a concern, evaluating a newer CAT model (e.g., with Tier 4 or Tier 3 compliance) may be worth the investment for long-term compliance and efficiency.

- You need **uncompromising reliability** for a high-HP application (e.g., large pumps, generators, or marine propulsion).

- You operate in a region with **lenient emissions standards** or can afford retrofitting.

- You have access to **authorized CAT service centers** for maintenance.

- Budget constraints allow for the **higher initial and long-term costs** of a premium brand.

- You require **modern emissions compliance** (e.g., Tier 4) and can afford a newer model.

- Your application is **space-sensitive**, and a smaller, more efficient engine would suffice.

- You prefer **lower upfront costs** and are willing to accept slightly less reliability from a non-branded or aftermarket engine.

For most **heavy-duty, long-term industrial uses**, this CAT engine remains a **strong, justified purchase** especially when factoring in its longevity and reduced downtime. However, weigh the costs against newer models if emissions and efficiency are critical.

Details:

Used motor missing wire box powered it up and runs well. Please Look at all the pictures they are part of. 120089.00 1 hp 3 Ph. Motor is from company that closed and had spare motors in stock for their equipment.

Leeson Cat No. 1140 RPM Motor G145T 7/8 shaft. B1-F1-R7-S1-2.

part #: 12008900 prices

• $169.99-$269.69

specifications oelemot:

• brand: Leeson
• mpn: 120089.00
• model: C145t11db1c
• part type: Hp Motor Shaft
• actual rated input voltage: 208-230/460
• inverter/vector duty rating: Not Inverter/vector Duty Rated
• special motor construction: General Purpose
• base rpm: 1140
• insulation class: B
• current type: Ac
• service factor: 1.15
• full load amps: 3.8/1.9
• nema design letter: Design B
• ac frequency rating: 60 Hz
• enclosure type: Odp
• shaft type: Keyed
• ac motor type: Induction/asynchronous
• shaft diameter: 7/8 In
• mounting type: Base-mounted
• reversible/non-reversible: Reversible
• ip rating: Not Rated
• nominal rated input voltage: 208 V, 230 V, 460 V
• ac phase: Three Phase
• country of origin: United States

shipping oelemot:

• cost: $110.65
• service: USPS Ground Advantage, FedEx Ground / FedEx Home Delivery
• transit: 3-8 Days
• class: Standard
• carrier: USPS, FedEx
• type: Calculated

offer oelemot:

• availability: In Stock
• started: April 13, 2026
• sold: 0
• quantity: 1
• options: Ship-to-home

seller oelemot:

• city: Elysburg, Pennsylvania
• rating: 98.8%
• # reviews: 1565

returns oelemot:

• policy: No Returns

general oelemot:

• Industrial Automation Motion Controls > Electric Motors > General Purpose Motors
• condition: Used

payments oelemot:

• wallet: Paypal
• other
• credit card: Visa

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