LYCOMING HONEYWELL 1-300-015-04 Turbine Engine Bearing T-53

( Brand: Lycoming Honeywell ), ( Manufacturer Part Number: 1-300-015-04 ), ( Part Type: Bearing Engine ), ( Compatible Make: Lycoming Honeywell T-53 Series ), ( Compatible Model: Lycoming T-53 Turbine Engines ), ( Country Of Origin: United States )

Review LYCOMING HONEYWELL T-53 Turbine Engine Main Bearing Pn#

The **Lycoming-Honeywell T-53-L-701 Series Turbine Engine Bearing (Part Number 1-300-015-04)** is a precision-engineered, high-performance component designed exclusively for the robust and reliable **Lycoming T-53-L-701 turboshaft engine**, a workhorse powerplant widely utilized in military helicopters such as the Bell UH-1 Huey, Boeing Vertol CH-47 Chinook, and other specialized aircraft applications. This bearing is a critical part of the engine s **accessory gearbox and main transmission system**, where it plays a pivotal role in maintaining optimal rotational efficiency, reducing friction, and ensuring the longevity of the turbine s internal components. Manufactured to exacting aerospace-grade specifications, the **1-300-015-04** is constructed from **high-strength, corrosion-resistant alloy steel**, often treated with **nitriding or carburizing processes** to enhance durability and withstand the extreme stresses of continuous high-speed operation under demanding flight conditions. Its **ball or roller bearing design** (depending on the exact application within the engine) is engineered to handle axial and radial loads with minimal wear, providing smooth and consistent performance even in the most arduous environments, such as high-altitude operations, rapid takeoffs, or prolonged hover cycles. The bearing s **precision-machined raceways and hardened rolling elements** ensure low friction and high load-bearing capacity, which is essential for maintaining the engine s power output and fuel efficiency while minimizing the risk of catastrophic failure. Additionally, this component is designed to operate within the **extreme temperature ranges** encountered in turbine engines, typically between **-65 F and 350 F**, without compromising structural integrity or lubrication performance. Whether serving in military, commercial, or specialized aviation applications, the **1-300-015-04** exemplifies the reliability and engineering excellence synonymous with Lycoming-Honeywell s legacy of powering some of the world s most critical aircraft systems. Proper installation, regular lubrication, and adherence to maintenance schedules are paramount to ensuring its optimal function and extending the operational life of the T-53 engine.

### **Pros and Cons of Buying a Lycoming Honeywell IO-300-015-04 (T-53 Turbine Engine Bearing)**

1. **Compatibility with T-53 Engines** This bearing is specifically designed for the Lycoming T-53-L-13B turbine engine, which is commonly found in military helicopters like the Bell UH-1 Huey. If you have a T-53 engine, this part is a direct fit, reducing the need for modifications.

2. **High-Quality Manufacturing** Lycoming (now part of Honeywell Aerospace) is a well-established manufacturer with a reputation for durable aviation components. The bearing is built to withstand the high stresses of turbine engine operation.

3. **Availability of Technical Support** Since this is a legacy but still widely used part, there are likely service manuals, repair guides, and technical support resources available, especially from aviation maintenance forums or military surplus suppliers.

4. **Potential Cost Savings** If the engine is already in use (e.g., in a restored Huey or other T-53-powered aircraft), purchasing a used or refurbished bearing may be cheaper than a new one, depending on availability.

5. **Long-Term Reliability** The T-53 engine is a proven design with decades of operational history. If properly maintained, the bearing should last for many hours of service.

6. **Ease of Installation** Since it is a standard component for the T-53, installation should follow established procedures, reducing the risk of compatibility issues.

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1. **Age and Obsolescence** The T-53 engine is a Cold War-era design, and while it remains in use, parts like bearings may be harder to source than newer engine models. Honeywell no longer actively produces new T-53 components, meaning you may rely on aftermarket or refurbished parts.

2. **Limited Supplier Options** Finding a reputable supplier for this specific bearing can be challenging. You may need to check military surplus auctions, aviation parts dealers, or specialized turbine engine repair shops, which could drive up costs.

3. **Maintenance and Inspection Requirements** Turbine engine bearings require strict maintenance, including regular lubrication, vibration analysis, and borescope inspections. Failure to follow these procedures could lead to catastrophic engine failure.

4. **Potential for Wear or Damage** If the bearing is used, there is a risk of hidden damage (e.g., scoring, corrosion, or fatigue cracks). A thorough inspection by a qualified turbine engine mechanic is essential before installation.

5. **High Replacement Costs** While the bearing itself may be affordable, labor costs for installation and engine run-up testing could be significant, especially if performed by a specialized turbine engine shop.

6. **Regulatory and Certification Challenges** If the aircraft is not already certified for flight with a T-53 engine, you may need FAA or military approvals for modifications, adding administrative and financial burdens.

7. **Limited Spare Parts Availability** Beyond the bearing, other T-53 components (e.g., seals, shafts, or turbine blades) may also be difficult to source, increasing the risk of engine downtime if multiple parts fail.

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Buying a Lycoming Honeywell IO-300-015-04 (T-53 turbine engine bearing) can be a practical solution if you have a T-53-powered aircraft and need a direct-fit replacement. The bearing s compatibility and durability make it a viable choice for experienced operators who can ensure proper maintenance. However, the challenges of sourcing parts, the age of the engine design, and the need for specialized expertise must be carefully considered.

- You have confirmed the exact model match (IO-300-015-04 is for the T-53-L-13B variant).

- You are working with a reputable supplier (preferably one with military or aviation industry experience).

- You have access to proper inspection and maintenance resources.

- You are prepared for potential higher labor costs associated with turbine engine work.

For newer or more commonly used engines (e.g., PT6, T700), alternative parts may be easier to obtain. If budget and time allow, consider exploring refurbished or remanufactured bearings from trusted aviation suppliers.

- **If you have a T-53 engine and need this bearing urgently**, purchase from a verified military surplus dealer or an aviation parts specialist with a history of servicing turbine engines. Request documentation proving the bearing s condition and compatibility.

- **If possible, verify the bearing s condition** through a borescope inspection or by consulting a turbine engine mechanic before installation.

- **Budget for additional maintenance** this is not a "set and forget" part. Regular inspections and lubrication are critical.

- **Explore alternatives** if the engine is nearing the end of its service life, consider whether a full overhaul or replacement with a more modern engine (if feasible) would be more cost-effective in the long run.

For best results, consult with an aviation mechanic experienced in turbine engines before making a purchase.

Details:

Federal Stock # 3110-00-727-3032, Removed from service during Overhaul Selling in AS-IS Condition. Lycoming Honeywell T-53 Series Turbine Engines, Main #1 Roller Bearing PN# 1-300-015-04.

part #: 130001504 price

• $125.00

specifications engineaviatio:

• brand: Lycoming Honeywell
• mpn: 1-300-015-04
• part type: Bearing Engine
• compatible make: Lycoming Honeywell T-53 Series
• compatible model: Lycoming T-53 Turbine Engines
• country of origin: United States

shipping engineaviatio:

• class: Standard
• transit: 3-9 Days
• cost: $8.65
• service: USPS Ground Advantage
• carrier: USPS
• type: Calculated

payments engineaviatio:

• credit card: Mastercard
• wallet: Paypal
• other

general engineaviatio:

• Aviation Parts Accessories > Engines > Engine Components
• condition: Used

offer engineaviatio:

• quantity: 1
• sold: 0
• started: April 8, 2026
• options: Ship-to-home
• best offers: True
• availability: In Stock

seller engineaviatio:

• # reviews: 1172
• rating: 100.0%
• city: Cleburne, Texas

returns engineaviatio:

• policy: No Returns

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