MIKUNI 776-39005 Top Carburetor Cover HSR42/45

( Brand: Mikuni ), ( Type: Carburetor ), ( Manufacturer Warranty: No Warranty ), ( Manufacturer Part Number: 776-39005 ), ( Country Of Origin: Japan )

Review MIKUNI Hsr42/45 Carburetor Top Cover #776-39005 fits HSR42

The Mikuni 776-39005 HSR42/45 Carburetor Top Cover is a critical component for the proper functioning of your Mikuni HSR42 or HSR45 carburetor. This top cover is meticulously engineered to provide an airtight seal to the carburetor, ensuring optimal engine performance.

The top cover is manufactured from high-quality, durable materials, including a lightweight yet robust aluminum alloy for the main body and a resilient rubber gasket for the seal. The anodized finish on the aluminum adds an elegant touch to your engine components while providing superior corrosion resistance.

The Mikuni 776-39005 HSR42/45 Carburetor Top Cover features a compact design that allows for easy installation and removal. It is designed to fit securely onto the carburetor body, with precise machining ensuring that all threads and mounting points align correctly. The cover's smooth, polished surface not only enhances the visual appeal of your engine but also reduces air turbulence for improved carburetor efficiency.

This top cover is ideal for various applications, including motorcycles, go-karts, and small engine applications. Its compatibility with Mikuni HSR42 and HSR45 carburetors makes it a versatile choice for enthusiasts seeking high-performance components.

Installing the Mikuni 776-39005 HSR42/45 Carburetor Top Cover is a straightforward process. Simply remove the old cover, clean the mounting surfaces, apply a thin layer of threadlocker to the threads, and securely fasten the new cover in place using the included hardware.

In summary, the Mikuni 776-39005 HSR42/45 Carburetor Top Cover is a must-have for anyone looking to maintain or upgrade their Mikuni carburetor system. Its durable construction, precise fit, and airtight seal ensure optimal engine performance, making it an essential component for any high-performance engine application.

The Mikuni HSR42/45 carburetor top cover, model number 776-39005, is a commonly used replacement part for various motorcycles and small engines. Here are some potential pros and cons of purchasing this top cover.

1. OEM (Original Equipment Manufacturer) replacement: This top cover is manufactured by Mikuni, ensuring a perfect fit and compatibility with the original carburetor.

2. Durable construction: The top cover is made of high-quality materials that are resistant to wear and tear, providing long-lasting performance.

3. Easy installation: The replacement process is straightforward, making it a convenient solution for DIY enthusiasts.

4. Improves engine performance: A new top cover can help restore the engine's carburetor to its optimal condition, resulting in improved fuel efficiency and power delivery.

1. Cost: Compared to aftermarket alternatives, OEM replacement parts can be more expensive.

2. Availability: Depending on the specific application and location, finding this top cover might be challenging.

3. Limited compatibility: This top cover is designed specifically for Mikuni HSR42/45 carburetors, so it won't work with other carburetor models.

In conclusion, purchasing the Mikuni 776-39005 HSR42/45 carburetor top cover offers several benefits, including OEM quality, durability, ease of installation, and improved engine performance. However, the higher cost and limited compatibility are potential drawbacks. If you own a Mikuni HSR42/45 carburetor and need a replacement top cover, this part is an excellent choice. For those on a tighter budget or who use a different carburetor model, exploring aftermarket alternatives may be a better option.

part # 77639005 prices

• $17.23-$22.52

specifications iodacarb:

• for models: Hsr42
• brand: Mikuni
• type: Carburetor
• manufacturer warranty: No Warranty
• manufacturer part number: 776-39005
• country of origin: Japan

returns iodacarb:

• policy: No Returns

seller iodacarb:

• rating: 100.0%
• # reviews: 134

offer iodacarb:

• sold: 0
• options: Ship-to-home
• quantity: 1
• best offers: True
• started: March 23, 2026
• availability: In Stock

shipping iodacarb:

• carrier: USPS
• service: USPS Ground Advantage
• type: Calculated
• class: Standard
• cost: $5.45
• transit: 4-10 Days

general iodacarb:

• Motorcycle Scooter Parts Accessories > Air Intake Fuel Delivery > Carburetors
• condition: Used

payments iodacarb:

• wallet: Paypal
• credit card: Diners-club
• other
• money order

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