LYCOMING LW12949 Intake Valve

( Brand: Lycoming ), ( Manufacturer Part Number: LW12949 ), ( Part Type: Intake Valve )

Review LYCOMING New Intake Valve O-360 fits IO-360

The Lycoming LW12949 Intake Valve is a crucial component of the IO-360 and O-360 engines, designed to optimize the combustion process for superior engine performance. This intake valve is meticulously engineered to meet the highest standards of quality and reliability.

The valve features a compact, yet robust design with a diameter of approximately 1.57 inches (39.9 mm) and a thickness of 0.25 inches (6.4 mm). It is made from heat-treated, high-strength steel, ensuring durability and resistance to wear and tear. The valve seat is precision-machined to provide a tight seal and minimize air leakage, resulting in improved combustion efficiency and increased power output.

The intake valve is equipped with a hollow, spherical stem that facilitates smooth valve operation and reduces friction. The stem also features a hollow design, which not only reduces weight but also allows for efficient cooling of the valve. Additionally, the valve is outfitted with a hardened, steel valve tip, ensuring optimal sealing and durability.

The Lycoming LW12949 Intake Valve is designed to work seamlessly with other engine components, including the camshaft, lifters, and rocker arms. It is important to note that this intake valve is intended for use in Lycoming IO-360 and O-360 engines and should not be installed in engines from other manufacturers.

In summary, the Lycoming LW12949 Intake Valve is a high-performance, reliable component engineered for the IO-360 and O-360 engines. Its compact design, high-strength materials, and spherical stem provide optimal sealing, efficient cooling, and smooth operation. This intake valve is a valuable investment for anyone looking to enhance their engine's performance and longevity.

Pros and Cons of Buying Lycoming LW12949 Intake Valve for IO-360 and O-360 Engines

The Lycoming LW12949 intake valve is a popular replacement option for the IO-360 and O-360 engines. This valve is designed to provide improved performance and durability compared to the original equipment. In this article, we will discuss the pros and cons of buying a Lycoming LW12949 intake valve to help you make an informed decision.

1. Improved Performance: The Lycoming LW12949 intake valve is designed with a larger diameter and longer stem than the original equipment. This results in better airflow and improved engine performance.

2. Enhanced Durability: The LW12949 intake valve is made from high-quality materials that are designed to withstand the rigors of aviation use. This valve is known for its longevity and can help reduce the need for frequent replacement.

3. Reduced Engine Wear: By improving the intake airflow, the LW12949 intake valve can help reduce engine wear and tear. This can lead to longer engine life and fewer maintenance costs.

4. Easy Installation: The LW12949 intake valve is designed to be a direct replacement for the original equipment. This means that installation is typically straightforward and can be done by a skilled mechanic or an experienced homebuilder.

1. Cost: The Lycoming LW12949 intake valve is more expensive than the original equipment. This can be a deterrent for some buyers, especially those on a tight budget.

2. Availability: The LW12949 intake valve may not be readily available from all aviation parts suppliers. This can make it difficult for some buyers to find and purchase the valve when they need it.

3. Complexity: While the installation of the LW12949 intake valve is generally straightforward, it does require a certain level of mechanical expertise. This can be a concern for homebuilders or those without access to a skilled mechanic.

The Lycoming LW12949 intake valve offers several advantages over the original equipment, including improved performance, enhanced durability, reduced engine wear, and easy installation. However, it also comes with some disadvantages, such as a higher cost, limited availability, and the requirement for a certain level of mechanical expertise. Ultimately, the decision to buy the LW12949 intake valve depends on your specific needs, budget, and availability of alternative options.

If you are looking for improved engine performance, durability, and reduced wear and tear, the Lycoming LW12949 intake valve is a worthy investment. However, if you are on a tight budget or have limited access to aviation parts suppliers, you may want to consider alternative options or wait until the valve becomes more widely available. Ultimately, it is important to weigh the pros and cons carefully and consult with a qualified mechanic before making a purchase.

Details:

Part was incorrectly described as New, New Old Stock, Overhauled or Serviceable. Unless specified, part does not come with an official SERVICEABLE tag or certificate. Part did not come with paperwork or certification when none was mentioned in listing. Part, no matter the condition, has been dismantled, opened, modified, repair attempted,has damaged, marked, used or is otherwise not in same condition as originally sold.

These parts are sold for overhaul or to be used as only. As-Removed AR: Part is being sold in the condition it was removed from aircraft, and has not been overhauled or repaired. Core / For Parts CR FP: are explicitly non-functional, damaged, or missing components and not serviceable beyond economic repair. Serviceable SV.

Part was described as-Is, Repairable, Core / For Parts and missing components or parts. New Old Stock NOS: Part is new, but has been sitting as surplus or unused for some time. Part may or not come with paperwork traceability. May come with an official REPAIRABLE tag if specified.

Part may come with certification or paperwork if available. Incorrect part number or model on listing. This unit is in excellent condition. Parts may have internal, hidden or undiscovered damage, missing pieces, significant wear, damage corrosion.

New NE: Part is outright new from the manufacturer and usually comes with manufacturers tag/certificate, packaging, has never been used or installed. These parts either have never been used, or installed but saw no significant use may shelf-wear. Part was described as-Is, Repairable, Core / For Parts and is not functional or cannot be repaired. As-Is AS: Part is being sold as it presented or photographed, with no guarantee, warranty assurance that the part functional, whole complete, usable correct model number.

Lycoming Intake Valve IO-360, O-360 P/N: LW12949 Alternate NPN This unit is being sold as NEW OLD STOCK. Buyer purchased incorrect part for their aircraft make/ model. Testing was agreed upon before hand and failed inspection, provided no repair attempts were made.

part #: lw12949 prices

• $175.00-$200.00

specifications aviationpar:

• for models: Io-360
• brand: Lycoming
• mpn: Lw12949
• part type: Intake Valve

seller aviationpar:

• rating: 99.7%
• # reviews: 1450
• city: Sanford, Florida

returns aviationpar:

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

payments aviationpar:

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

shipping aviationpar:

• class: Standard
• type: Fixed
• transit: 4-7 Days
• service: Standard
• cost: $7.99

general aviationpar:

• condition: New
• Parts Accessories > Aviation Parts Accessories > Parts

offer aviationpar:

• availability: In Stock
• sold: 0
• started: February 6, 2026
• quantity: 3
• best offers: True
• options: Ship-to-home

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