LYCOMING 74634 Pipe Ar P/n

( Brand: Lycoming ), ( Manufacturer Part Number: 74634 ), ( Part Type: Pipe ), ( Warranty: 30 Day Warranty )

Review LYCOMING P/n Pipe Ar One

The Lycoming P/N 74634 is a crucial component for aviation enthusiasts and professionals who own or work on Lycoming engines. This part is specifically designed as an aftermarket replacement for the pipe assembly used in the cooling system of certain Lycoming engines.

The pipe assembly, also referred to as the Pipe, Air, or Radiator (PAR) assembly, plays a vital role in ensuring the engine stays at an optimal temperature during operation. It is made up of several pipes, fittings, and gaskets that form a sealed system to circulate coolant from the engine to the radiator and back again.

The Lycoming 74634 P/N pipe assembly is manufactured from high-quality materials, ensuring superior durability and resistance to corrosion and fatigue. It is designed to meet or exceed the original equipment manufacturer (OEM) specifications, ensuring a perfect fit and seamless integration with the engine cooling system.

This pipe assembly is compatible with various Lycoming engines, including those with serial numbers starting with IO-360, IO-390, IO-400, IO-435, and IO-540. It is crucial to double-check your engine specifications before purchasing to ensure compatibility.

Installing the Lycoming 74634 P/N pipe assembly is a straightforward process for experienced engine builders or mechanics. However, it is recommended to follow the OEM installation instructions carefully to ensure proper installation and avoid potential issues.

In summary, the Lycoming 74634 P/N pipe assembly is an essential component for maintaining the cooling system of certain Lycoming engines. Its high-quality materials, OEM specifications, and straightforward installation process make it a reliable and efficient solution for aviation enthusiasts and professionals.

Pros and Cons of Buying Lycoming 74634 P/N Pipe AR

The Lycoming 74634 P/N Pipe AR is a crucial component for aviation engines. It is important to weigh the advantages and disadvantages before making a purchasing decision. This analysis will provide an unbiased examination of the pros and cons.

1. High-Quality Material: The Lycoming 74634 P/N Pipe AR is made from high-quality aluminum alloy, ensuring durability and resistance to corrosion.

2. Precision Manufacturing: The pipe undergoes precise manufacturing processes to ensure accurate dimensions and tight tolerances, ensuring proper engine function.

3. OEM Part: This part is a direct OEM (Original Equipment Manufacturer) replacement, ensuring compatibility and reliability.

4. Improved Engine Performance: A well-functioning pipe ensures efficient engine performance, reducing fuel consumption and emissions.

5. Long-Lasting: The Lycoming 74634 P/N Pipe AR is designed to last, reducing the need for frequent replacements.

1. Cost: The Lycoming 74634 P/N Pipe AR can be more expensive compared to aftermarket alternatives.

2. Availability: Due to its OEM status, it may take longer to source and receive the part, compared to aftermarket options.

3. Limited Compatibility: This part is designed specifically for Lycoming engines, limiting its compatibility to other engine types.

The Lycoming 74634 P/N Pipe AR offers several advantages, including high-quality material, precision manufacturing, and improved engine performance. However, its higher cost and limited compatibility may be drawbacks for some. Ultimately, the decision to purchase this part depends on the specific requirements and budget of the aviation maintenance operation.

If budget is a concern, consider researching and evaluating aftermarket alternatives. However, for those who prioritize OEM quality and compatibility, the Lycoming 74634 P/N Pipe AR is a reliable choice. Always consult with a certified aviation mechanic or engine specialist to ensure the correct part is selected for your specific engine model.

Details:

Condition: Used - as removed. Counterweights. We buy and sell inventories of new surplus used TCM Lycoming parts. Connecting Rods.

Price is for one pipe, not a set or lot. Please consider giving us a positive review. Tappet Bodies. P/N: 74634 Lycoming Pipe AR - for one pipe serviceable.

If listing shows quantity available as more than one 1 then item shipped may not be the exact in photo but of equivalent condition. Accessory Cases. If for any reason after receiving an item, you decide that it is not up to your standard. Will also do combined shipping.

Most Items are shipped either UPS or USPS Priority Mail, unless directed otherwise. All parts come with a 30 day warranty.

part #: 74634 prices

• $40.00-$250.00

specifications aviationpar:

• brand: Lycoming
• mpn: 74634
• part type: Pipe
• warranty: 30 Day Warranty

returns aviationpar:

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

payments aviationpar:

• credit card: Visa
• wallet: Paypal
• other

offer aviationpar:

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

shipping aviationpar:

• type: Calculated
• transit: 3-8 Days
• class: Expedited, One-day
• service: USPS Priority Mail, UPS Next Day Air
• cost: $54.85
• carrier: USPS, UPS

seller aviationpar:

• # reviews: 895
• city: McKinney, Texas
• rating: 99.7%

general aviationpar:

• Parts Accessories > Aviation Parts Accessories > Parts
• condition: Used

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