BRIGGS AND STRATTON 85781 Fortress Aircraft Magneto Control Switch B-29

( Brand: Briggs And Stratton ), ( Manufacturer Part Number: 85781 ), ( Part Type: Control Switch Magneto ), ( Warranty: 60 Day ), ( Compatible Make: Avionics ), ( Compatible Model: Briggs And Stratton 85781 ), ( Country Of Origin: United States )

Review BRIGGS AND STRATTON B-29 Super Fortress Aircraft Magneto Control Switch Part Vintage

The Briggs & Stratton 85781 B-29 Fortress Aircraft Magneto Control Switch is a crucial component for aviation enthusiasts and pilots restoring or operating vintage aircraft with Briggs & Stratton engines. This authentic B-29 Fortress switch is designed to provide reliable and precise control over the ignition system, ensuring optimal engine performance.

This Magneto Control Switch is meticulously crafted to match the original OEM specifications. With a robust and durable construction, it boasts a high-quality, anodized aluminum housing, making it both attractive and long-lasting. The switch features six illuminated push-to-start buttons, each one corresponding to a specific magneto. The clear, blue-tinted lenses on the buttons enhance the switch's vintage aesthetic while also providing clear indication of the ignition status.

The switch also comes equipped with a set of six amber-colored, pilot-selectable position indicator lights, located above the corresponding magneto buttons. These lights help pilots identify which magneto is currently selected and active, providing essential information for safe and effective engine operation.

This Briggs & Stratton B-29 Fortress Aircraft Magneto Control Switch is a direct replacement for the original switch in vintage aircraft models using Briggs & Stratton engines. It is designed to fit seamlessly into the existing wiring harness, minimizing installation time and effort. The switch includes all necessary mounting hardware and comes pre-wired with a standard 18-inch lead.

In summary, the Briggs & Stratton 85781 B-29 Fortress Aircraft Magneto Control Switch is an essential accessory for aviation enthusiasts and pilots restoring or operating vintage aircraft with Briggs & Stratton engines. Its authentic design, robust construction, and ease of installation make it a valuable addition to any vintage aircraft cockpit.

Pros and Cons of Buying Briggs & Stratton 85781 B-29 Fortress Aircraft Magneto Control Switch

The Briggs & Stratton 85781 B-29 Fortress Aircraft Magneto Control Switch is a critical component for aircraft owners, particularly those who use Briggs & Stratton engines. This switch enables pilots to control the ignition systems of their engines, ensuring smooth and reliable engine operation. In this analysis, we will weigh the pros and cons of purchasing this magneto control switch.

1. Reliability: Briggs & Stratton is a well-known brand in the engine industry, and their products are recognized for their durability and reliability. This switch is designed specifically for their engines, ensuring a perfect fit and optimal performance.

2. Easy Installation: The 85781 B-29 Fortress Aircraft Magneto Control Switch is designed to be easy to install. It comes with clear instructions, and the process typically does not require extensive mechanical knowledge or expertise.

3. Safety: A malfunctioning magneto control switch can lead to serious safety concerns, particularly during flight. By investing in a reliable replacement like the Briggs & Stratton 85781, pilots can ensure their aircraft's ignition systems are functioning correctly, reducing potential risks.

4. OEM Part: Using an Original Equipment Manufacturer (OEM) part like the 85781 ensures that the magneto control switch is manufactured to the same standards as the engine itself. This can result in better performance, longer lifespan, and fewer potential issues.

1. Cost: Compared to aftermarket alternatives, OEM parts like the Briggs & Stratton 85781 can be more expensive. However, the potential benefits in terms of reliability, ease of installation, and safety may outweigh the cost difference for some aircraft owners.

2. Availability: Depending on the specific model of the aircraft and engine, the Briggs & Stratton 85781 B-29 Fortress Aircraft Magneto Control Switch may not always be readily available. This could result in a longer wait time for repairs or replacements.

3. Limited Compatibility: The 85781 is specifically designed for use with Briggs & Stratton engines. This limits its compatibility with other engine types, so it may not be the best choice for aircraft owners using different engine brands.

The Briggs & Stratton 85781 B-29 Fortress Aircraft Magneto Control Switch offers several advantages for aircraft owners, including reliability, easy installation, safety, and OEM quality. However, it comes with some drawbacks, such as cost, availability, and limited compatibility. Ultimately, the decision to purchase this magneto control switch depends on an aircraft owner's specific needs, budget, and engine configuration. If reliability, ease of installation, and safety are top priorities, the 85781 could be an excellent investment. However, for those seeking more affordable alternatives or broader compatibility, aftermarket parts may be a better fit.

Details:

B-29 Super Fortress Aircraft Magneto Control Switch. Left Stud is damaged/ see last pics. Part Number: 85781. Switch for engines #1 And #2 is available.

This switch is for engines #3 And #4. FOR COLLECTORS, PROJECTS, MANCAVE,Etc. Briggs And Stratton.

part #: 85781 price

• $299.00

specifications aviationpar:

• brand: Briggs And Stratton
• mpn: 85781
• part type: Control Switch Magneto
• warranty: 60 Day
• compatible make: Avionics
• compatible model: Briggs And Stratton 85781
• country of origin: United States

offer aviationpar:

• quantity: 1
• options: Ship-to-home
• sold: 0
• started: January 23, 2026
• availability: In Stock

general aviationpar:

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

payments aviationpar:

• other
• credit card: Visa
• wallet: Paypal

returns aviationpar:

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

seller aviationpar:

• rating: 100.0%
• # reviews: 1988
• city: OrlAndo, Florida

shipping aviationpar:

• cost: $11.00
• transit: 5-12 Days
• service: USPS First Class
• type: Fixed
• class: StAndard
• carrier: USPS

Briggs And Stratton 85781 Is Similar To:

• 024847263640 Dni Briggs Stratton Oem Replacement Gasket Pack (36.1% similar) Please review all pictures to assess the condition of item. Briggs Stratton oem 4159 replacement gasket 5 pack this part is new. Some parts will come with dirt And grease as we leave in the condition that they were removed...(November 15th, 2018)
• 024847785371 Dni Briggs Stratton Engine Valve Guide Bushing Part (36.5% similar) Some parts will come with dirt And grease as we leave in the condition that they were removed. Briggs Stratton engine valve guide bushing part this is new. Please review all pictures to assess the condition of item...(November 15th, 2018)
• 024847808223 Dni Briggs Stratton Starter Clip (31.4% similar) Briggs Stratton starter clip this part is new. Some parts will come with dirt And grease as we leave in the condition that they were removed. Please review all pictures to assess the condition of item...(October 25th, 2018)
• 270251 Dni Briggs Stratton Air Filter Foam Element (37.2% similar) Briggs Stratton air filter foam element this part is new. Please review all pictures to assess the condition of item. Some parts will come with dirt And grease as we leave in the condition that they were removed...(November 18th, 2018)
• 270447 Dni Nos Briggs And Stratton Oem Elemnet Filter (40.5% similar) nos Briggs And Stratton oem element filter this part is new. Please review all pictures to assess the condition of item. Some parts will come with dirt And grease as we leave in the condition that they were removed...(October 26th, 2018)
• 293962 Briggs Stratton Genuine Kit (32.6% similar) Please review all pictures to assess the condition of item. Some parts will come with dirt And grease as we leave in the condition that they were removed. genuine Briggs Stratton needle seat kit this part is new...(November 18th, 2018)
• 298830 Dni New In The Box Oem Briggs Stratton Exhaust Muffler (28.2% similar) Please review all pictures to assess the condition of item. Some parts will come with dirt And grease as we leave in the condition that they were removed. new in the box oem Briggs Stratton exhaust muffler old this part is...(November 3rd, 2018)
• 299637 Dni Genuine Briggs Stratton Diaphragm Assembly Oem (28.9% similar) Some parts will come with dirt And grease as we leave in the condition that they were removed. genuine Briggs Stratton diaphragm assembly oem packaging-new 719BS1B this part is new. Please review all pictures to assess the condition of item...(October 25th, 2018)
• 391780 Dni Piston Ring Std Briggs Stratton Hp (24.3% similar) Please review all pictures to assess the condition of item. Some parts will come with dirt And grease as we leave in the condition that they were removed. piston ring std Briggs Stratton 18 hp this part is new...(November 17th, 2018)
• 491021 Dni Genuine Briggs Stratton Air Filter (32.9% similar) Some parts will come with dirt And grease as we leave in the condition that they were removed. genuine Briggs Stratton air filter oem packaging-new 719BS1A this part is new. Please review all pictures to assess the condition of item...(October 25th, 2018)
• 491435s Dni Briggs Stratton Filter (27.9% similar) Please review all pictures to assess the condition of item. Some parts will come with dirt And grease as we leave in the condition that they were removed. Briggs Stratton 491435S filter pre-cleaner this part is new...(October 25th, 2018)