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LYCOMING 75038 Crankshaft

fits model: 540.

75038 Lycoming 540 Crankshaft

( Brand: Lycoming ), ( Manufacturer Part Number: 75038 ), ( Part Type: Crankshaft )

Review LYCOMING Crankshaft fits 540

The Lycoming 75038 540 crankshaft is a crucial component of the Lycoming IO-540 series aircraft engines, known for their durability and reliability in powering general aviation aircraft. This crankshaft is specifically designed to meet the demanding requirements of these engines, which see extensive use in a variety of aircraft applications.

Measuring 13.7 inches in length, the Lycoming 75038 540 crankshaft is a forged steel component, ensuring both strength and rigidity. Its precision machining allows for a snug fit within the engine, minimizing vibrations and ensuring smooth engine operation. The crankshaft features six counterweights strategically placed along its length to help balance the engine and further reduce vibrations.

The crankshaft's journals are meticulously ground to ensure a perfect fit with the connecting rods and pistons. These journals are also nitrided, a process that enhances their surface hardness and resistance to wear. Additionally, the crankshaft's main journal is oversized to accommodate larger bearing surfaces, further increasing its durability.

The Lycoming 75038 540 crankshaft's fillet radius is carefully designed to minimize stress concentrations and enhance fatigue life. The fillet radius is also critical for proper bearing alignment and ensures the engine runs smoothly.

The crankshaft's propeller flange is designed to accommodate a wide range of propeller sizes and configurations, allowing for flexibility in aircraft design and operation. The flange is also machined to exacting standards to ensure proper propeller blade contact and efficient power transfer.

This Lycoming 75038 540 crankshaft comes with a new O-ring, ensuring a tight seal and preventing oil leakage. It also includes a new main cap gasket, ensuring a proper seal between the crankshaft and the engine block.

Overall, the Lycoming 75038 540 crankshaft is a high-quality, durable component that plays a vital role in the performance and reliability of the Lycoming IO-540 engine series. It is designed to meet the rigorous demands of general aviation applications and is backed by Lycoming's reputation for excellence in engine manufacturing.

Pros and Cons of Buying a Lycoming 75038 540 Crankshaft for an Aircraft Engine

Introduction:

The Lycoming 75038 540 crankshaft is a critical component of the Lycoming O-320 and O-360 series aircraft engines. This crankshaft is known for its durability and reliability, but like any mechanical part, it has its advantages and disadvantages. In this analysis, we will discuss the pros and cons of purchasing a Lycoming 75038 540 crankshaft for an aircraft engine.

Pros:

1. Durability: The Lycoming 75038 540 crankshaft is renowned for its exceptional durability. It is made from high-strength materials and is designed to withstand the rigors of aircraft engine operation.

2. Reliability: The crankshaft's durability translates to reliable performance. It can handle numerous takeoffs and landings without fail, making it an essential component for any aircraft engine.

3. Availability: The Lycoming 75038 540 crankshaft is widely available through aircraft parts suppliers. Its popularity among aircraft engine users ensures that spare parts are readily available in case of failure.

4. Compatibility: This crankshaft is compatible with various Lycoming O-320 and O-360 series engines, making it a versatile option for aircraft owners and operators.

Cons:

1. Cost: The Lycoming 75038 540 crankshaft can be expensive, especially when compared to aftermarket alternatives. However, the cost may be justified by its durability and reliability.

2. Complexity: The Lycoming 75038 540 crankshaft is a complex component with numerous parts. Installing or replacing it requires specialized knowledge and tools, which may add to the cost.

3. Lead Time: Due to its popularity and demand, the lead time for obtaining a new Lycoming 75038 540 crankshaft can be lengthy. This may cause operational downtime for the aircraft.

4. Weight: The crankshaft is a heavy component, which can add weight to the aircraft. Although the weight may be minimal, it can still impact fuel efficiency and overall performance.

Conclusion:

The Lycoming 75038 540 crankshaft is a high-quality, reliable, and durable component for aircraft engines. Its advantages include durability, reliability, availability, and compatibility. However, it also has disadvantages, such as cost, complexity, lead time, and weight. Ultimately, the decision to purchase a Lycoming 75038 540 crankshaft depends on the specific needs, budget, and priorities of the aircraft owner or operator.

Recommendation:

For aircraft owners and operators who prioritize durability, reliability, and availability, the Lycoming 75038 540 crankshaft is an excellent investment. However, for those who are budget-conscious or prefer a lighter component, aftermarket alternatives may be worth considering. Before making a purchase, it is essential to assess the specific needs and requirements of the aircraft engine and consult with a qualified aircraft mechanic.

Details:

part #: 75038 price

  • $14500.00

specifications aviationpar:

  • for models: 540
  • brand: Lycoming
  • mpn: 75038
  • part type: Crankshaft

offer aviationpar:

  • sold: 0
  • availability: In Stock
  • options: Ship-to-home
  • started: February 22, 2026
  • best offers: True
  • quantity: 1

general aviationpar:

  • condition: Remanufactured
  • Parts Accessories > Aviation Parts Accessories > Parts

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shipping aviationpar:

  • carrier: UPS
  • transit: 5-11 Days
  • cost: $95.47
  • service: UPS Ground
  • class: Standard
  • type: Calculated

returns aviationpar:

  • policy: No Returns

seller aviationpar:

  • # reviews: 477
  • rating: 100.0%
  • city: Pompano Beach, Florida
for models: 540, part type: crankshaft,
category: auto parts > aviation parts accessories > parts, sku: 20704981032487603,
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