LYCOMING S1A22618-75277 Aircraft Engines Pump Oil Body S1A22618/75277

( Brand: Lycoming ), ( Manufacturer Part Number: S1A22618/75277 ), ( Part Type: Oil Engine Pump )

Review LYCOMING S1a22618/75277 Aircraft Engines Deep Pump Oil Body #s1a22618/75277

The **Lycoming S1A22618/75277 Aircraft Engine Oil Pump Body** is a critical, high-performance component engineered specifically for Lycoming s line of fuel-injected, horizontally opposed, air-cooled aircraft engines, including the iconic IO-360, IO-470, and IO-540 series. Crafted from precision-machined aluminum alloy, this robust pump body houses the internal mechanisms responsible for circulating lubricating oil throughout the engine s critical moving parts, ensuring optimal temperature regulation, wear reduction, and prolonged component life. The design incorporates a tightly sealed, pressure-tolerant housing that integrates with the engine s oil pump assembly, featuring precision-machined oil passages, mounting flanges, and alignment bores to guarantee seamless integration with the crankshaft-driven pump mechanism. This component is essential for maintaining the engine s operational integrity, as it directly influences oil flow rate, pressure, and distribution, which are vital for preventing metal-to-metal contact in the bearings, cylinders, and camshafts under high-RPM and high-load conditions. Built to withstand the demanding stresses of aviation environments including temperature fluctuations, vibration, and exposure to moisture this pump body is often paired with a gerotor or rotary vane oil pump mechanism, delivering consistent lubrication even during aggressive maneuvers or prolonged flight hours. Whether installed in a general aviation aircraft, a light utility plane, or a specialized training aircraft, this oil pump body exemplifies Lycoming s commitment to reliability and performance, ensuring that pilots and operators can depend on their engines for safe, efficient, and trouble-free operation across diverse flight profiles.

### **Pros and Cons of Buying a Lycoming S1A22618/75277 Aircraft Engine Oil Pump Body**

1. **Compatibility and Reliability** The Lycoming S1A22618/75277 engine is a well-established model used in many general aviation aircraft, including the Cessna 172, 182, and other piston-engine aircraft. The oil pump body is a critical component, and a genuine or high-quality replacement ensures proper lubrication, preventing engine failure due to oil starvation.

2. **Aftermarket Availability** While Lycoming parts can be expensive, there are reputable aftermarket suppliers that offer remanufactured or refurbished oil pump bodies at a lower cost than OEM (Original Equipment Manufacturer) parts. This can be a cost-effective solution for owners on a budget.

3. **Easier Maintenance and Replacement** The oil pump body is a relatively straightforward component to replace, especially with the right tools and mechanical knowledge. Many aircraft mechanics and DIY enthusiasts can perform the replacement without needing specialized equipment.

4. **Prevents Major Engine Damage** A failing oil pump can lead to catastrophic engine failure, including seizing or complete destruction. Replacing a worn or damaged oil pump body is a preventive measure that extends engine life and avoids costly repairs.

5. **Standardized Design** Lycoming engines share many common components across different models, meaning the oil pump body for the S1A22618/75277 may also be compatible with other similar engines, increasing flexibility in sourcing parts.

6. **Potential for Remanufactured Parts** Some suppliers offer remanufactured oil pump bodies that undergo rigorous testing and refurbishment, providing a balance between cost and reliability. These parts often come with warranties, offering peace of mind.

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1. **High Cost of Genuine Parts** New OEM oil pump bodies from Lycoming (now owned by Textron Aviation) can be expensive, sometimes costing hundreds of dollars. This expense can be a barrier for owners looking for a budget-friendly solution.

2. **Limited Aftermarket Options** While there are aftermarket suppliers, not all are equally reliable. Some may sell counterfeit or poorly remanufactured parts that fail prematurely, leading to further engine issues. Due diligence is required when purchasing from non-OEM sources.

3. **Potential for Counterfeit Parts** The aviation parts market has seen instances of counterfeit components, including oil pump bodies. These can fail unexpectedly, risking engine damage. Buyers must verify the authenticity and quality of the part before installation.

4. **Installation Complexity** While the replacement itself is manageable, improper installation (e.g., incorrect torque, misalignment, or sealing issues) can lead to leaks or reduced performance. This requires careful attention to detail or professional assistance.

5. **Aging Aircraft and Wear Concerns** Older aircraft may have other worn components (e.g., seals, bearings) that could fail around the same time as the oil pump. Replacing just the pump body may not fully address underlying issues, potentially leading to recurring problems.

6. **Warranty and Liability Risks** Some aftermarket parts may not come with warranties, leaving the owner liable for any failures. OEM parts typically include warranties, but they come at a higher cost.

7. **Time and Labor Costs** Even if the part itself is affordable, the labor cost for replacement can be significant, especially if professional mechanics are required. DIYers must also account for the time and effort involved in the repair.

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The decision to buy an oil pump body for a Lycoming S1A22618/75277 engine depends on balancing cost, reliability, and risk. Genuine OEM parts offer the highest assurance of quality and compatibility but at a premium price. Aftermarket or remanufactured options can be cost-effective, provided they are sourced from reputable suppliers with proper warranties and testing. The key is to weigh the immediate savings against the potential risks of failure, which could lead to much more expensive repairs or engine damage.

- **Verify the source** of the part (preferably from a trusted aviation parts dealer or OEM).

- **Consider remanufactured options** if budget is a concern, but ensure they meet industry standards.

- **Inspect other related components** (seals, filters, oil lines) to avoid future issues.

- **Document the replacement** and maintain proper records for maintenance logs.

Ultimately, **prioritizing reliability over cost savings is critical** in aviation maintenance, where failure can have severe consequences.

If budget allows, **purchase a genuine Lycoming oil pump body** to ensure compatibility and reliability. If cost is a concern, **choose a high-quality remanufactured part from a well-reviewed supplier** (such as Aircraft Spruce, Universal Avionics, or other reputable aviation parts dealers). Always verify the part s authenticity, check for warranties, and consider professional installation if mechanical expertise is lacking. Regularly inspect the oil system to catch any signs of wear before they lead to critical failures.

Details:

THIS IS A USED VERY CLEAN DEEP OIL PUMP BODY #75277 FROM TURBO CHARGED LYCOMING SIX 6 CYLINDER ENGINE USING TWO 2 SEPARATE MAGNETOS. BUYER TO DETERMINE AIRWIRTHINESS FITS MOST SIX 6 CYLINDER ENGINES.

part #: s1a2261875277 prices

• $49.00-$250.00

specifications engineaviatio:

• brand: Lycoming
• mpn: S1a22618/75277
• part type: Oil Engine Pump

seller engineaviatio:

• # reviews: 408
• city: Redlands, California
• rating: 100.0%

returns engineaviatio:

• paid by: Buyer
• time: 30 Days
• policy: Returns Accepted

shipping engineaviatio:

• class: Expedited
• cost: $17.00
• carrier: USPS
• transit: 5-11 Days
• type: Fixed
• service: USPS Priority Mail

offer engineaviatio:

• started: April 12, 2026
• availability: In Stock
• sold: 0
• quantity: 1
• options: Ship-to-home
• best offers: True

payments engineaviatio:

• credit card: Mastercard
• other
• wallet: Apple-pay

general engineaviatio:

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

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