DIAMOND DA4-5221-00-00 Passenger Door Key DA-40 P/n 0526-420

( Brand: Diamond ), ( Manufacturer Part Number: DA4-5221-00-00 ), ( Part Type: Door ), ( Warranty: 30 Day )

Review DIAMOND Passenger Door P/n No Key fits 2004

The Diamond DA4-5221-00-00 04 DA-40 passenger door key 0526-420 is a crucial component for gaining access to the passenger door of a DA-40 Diamond Aircraft. This key is meticulously engineered to ensure a secure and reliable connection with the door locking system.

The key itself is made from high-quality materials, designed to withstand the rigors of frequent use. Its sleek, ergonomic design fits comfortably in the hand, making it easy to use even in challenging conditions. The keyhead is intricately cut with precise detail, ensuring that it can easily engage with the door lock's mechanisms.

The 0526-420 key is specifically designed for the DA-40 Diamond Aircraft series, and it is essential for gaining access to the passenger door of this aircraft model. It is important to note that using an incorrect or non-genuine key may damage the door lock or even result in the door failing to open, potentially compromising safety.

To install the key, simply insert it into the keyhole of the passenger door and turn it to the right to unlock the door. Once the door is open, you can use the key to securely lock it again by turning the key to the left. The key's robust design and precise engineering ensure that it can be used reliably over countless entries and exits.

In summary, the Diamond DA4-5221-00-00 04 DA-40 passenger door key 0526-420 is a vital accessory for the DA-40 Diamond Aircraft series. Its high-quality materials, ergonomic design, and precise engineering make it a reliable and essential component for securing and accessing the passenger door of your aircraft.

The Da4-5221-00-00 04 DA-40 passenger door key p/n 0526-420 is a specific part used in the Da40 aircraft model for the passenger door. Here are some potential pros and cons of buying this part:

1. OEM Part: This key is an original equipment manufacturer (OEM) part, which means it is designed and manufactured by the original manufacturer of the Da40 aircraft. Using an OEM part can ensure a proper fit, function, and compatibility with the aircraft.

2. Enhanced Security: A key specific to the Da40 model and door ensures that only authorized individuals can access the aircraft. This can be important for safety and security reasons.

3. Potential for Longer Lifespan: OEM parts are often designed to last longer than aftermarket parts due to their higher quality and standardized manufacturing processes.

1. Cost: OEM parts are generally more expensive than aftermarket parts because they are made by the original manufacturer. This may not be a concern for those who prioritize quality and compatibility over cost.

2. Limited Availability: This specific key may not be readily available at local aviation parts stores or through generic online retailers. It may need to be ordered directly from the Da40 manufacturer or an authorized dealer.

The Da4-5221-00-00 04 DA-40 passenger door key p/n 0526-420 is an essential part for ensuring the proper function and security of the passenger door on a Da40 aircraft. While it may be more expensive than aftermarket alternatives, its OEM design and potential for longer lifespan can offer peace of mind and reliability. However, its limited availability may require some additional effort to source and order.

If you are an owner or operator of a Da40 aircraft and need a passenger door key, it is recommended to purchase the Da4-5221-00-00 04 DA-40 passenger door key p/n 0526-420 from a trusted Da40 dealer or the aircraft manufacturer to ensure the part's authenticity, compatibility, and function.

Details:

Depending on dimensions, it may ship UPS. Removed in good condition from a parted out 2001 Diamond DA-40-180 N544DS, S/N 40.044. TTAF 2,744.8. Free shipping is usually USPS.

Diamond DA-40 Passenger Door. Window tinted gray. P/N DA4-5221-00-00 04, DA4-5221-20-00. Guaranteed to pass inspection or your money back.

part #: da452210000 prices

• $196.00-$5455.00

specifications aviationpar:

• for years: 2004
• brand: Diamond
• mpn: Da4-5221-00-00
• part type: Door
• warranty: 30 Day

seller aviationpar:

• rating: 100.0%
• city: Middletown, Ohio
• # reviews: 12441

shipping aviationpar:

offer aviationpar:

• options: Ship-to-home
• sold: 0
• started: June 11, 2026
• availability: In Stock
• best offers: True
• quantity: 1

returns aviationpar:

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

payments aviationpar:

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

general aviationpar:

• condition: Used
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