3858967

The Ra-Auto Fuel Pressure Regulator, part number 3858967, is a crucial component for maintaining optimal fuel pressure in Volvo Penta Mercruiser 4.3, 5.0, and 5.7 engines. Designed specifically for these engine models, this regulator ensures the consistent delivery of fuel to the engine for smooth and efficient operation.

Constructed from high-quality materials, this fuel pressure regulator boasts a robust and durable design. The regulator body is made from heavy-duty brass, which provides excellent resistance to corrosion and wear. The internal components, including the diaphragm and spring, are made from stainless steel for superior strength and longevity.

The Ra-Auto Fuel Pressure Regulator features a precise, adjustable design that allows you to fine-tune the fuel pressure to meet the specific needs of your engine. The regulator is equipped with a 3/8 NPT threaded inlet and outlet, making it easy to install and connect to your fuel system.

This regulator is designed to maintain a consistent fuel pressure of around 3.5 to 5 psi, depending on the engine model and operating conditions. The regulator's adjustment range is from 2.5 to 7 psi, providing you with the flexibility to make adjustments as needed.

The Ra-Auto Fuel Pressure Regulator is also designed with ease of use in mind. It features a convenient external adjustment knob that allows you to make adjustments quickly and easily, without the need for special tools.

In addition to its superior performance and durability, this fuel pressure regulator is also designed to be leak-free. The regulator's seals and gaskets are made from high-quality materials that provide an airtight seal, preventing fuel leaks and minimizing the risk of engine damage.

Overall, the Ra-Auto Fuel Pressure Regulator, part number 3858967, is an essential component for maintaining the optimal fuel pressure in Volvo Penta Mercruiser 4.3, 5.0, and 5.7 engines. Its robust design, adjustable functionality, and leak-free construction make it an excellent choice for boat owners and mechanics looking for reliable and long-lasting fuel pressure regulation.

The Ra-Auto Fuel Pressure Regulator (part number 3858967) is a potential solution for Volvo Penta Mercruiser 4.3/5.0/5.7 engines with fuel pressure issues. Let's examine the pros and cons of purchasing this regulator.

1. OEM Replacement: This regulator is an original equipment manufacturer (OEM) replacement, ensuring a perfect fit and function for Volvo Penta engines.

2. Improved Performance: A functioning fuel pressure regulator is crucial for optimal engine performance. This part can help improve fuel economy, reduce emissions, and prevent engine damage.

3. Easy Installation: The regulator is designed for easy installation, allowing most DIY enthusiasts to complete the task without professional assistance.

4. Affordable: Compared to some aftermarket alternatives, the Ra-Auto regulator is reasonably priced, making it a cost-effective solution.

1. Potential Shipping Delays: Ra-Auto is known for having occasional shipping delays, which may cause inconvenience for those requiring the part urgently.

2. No Warranty Information: There is no clear mention of a warranty on the Ra-Auto website for this specific part.

3. Availability: Ra-Auto parts may not always be readily available at local retailers, requiring online purchases and potential shipping wait times.

In conclusion, the Ra-Auto Fuel Pressure Regulator (part number 3858967) offers several advantages, including OEM fit and function, improved engine performance, easy installation, and affordability. However, potential disadvantages include shipping delays, lack of clear warranty information, and availability concerns.

Based on the information provided, I would recommend considering the Ra-Auto Fuel Pressure Regulator as a potential solution for your Volvo Penta Mercruiser engine if you're willing to accept the potential shipping delays and lack of clear warranty information. If these concerns are significant, it may be worth exploring alternative options from reputable aftermarket manufacturers.

Details:

Package included. Direct replacement: replaces Volvo Penta 3858967 and Mercruiser part numbers 2149831, 885174, 21491831. Wide marine compatibility: direct-fit replacement for Volvo Penta engines 4.3l, 5.0l, 5.7l and Mercruiser model's, including moi 4.3 6.2l setups, ensuring perfect integration. Regulate pressure, boost performance: maintains optimal fuel pressure to prevent hard starts, rough idling, and excessive consumption.

Designed to match oem specs precisely for seamless functionality. Easy DI installation: plug-and-play unit with direct-fit design. Allows fast installation without leaks or adjustments needed. 1 fuel pressure regulator replacement.

Restored throttle response and smoother engine performance. Fuel pressure regulator for Volvo Penta and Mercruiser 4.3, 5.0, 5.7 engines, replaces 3858967, 2149831 885174 21491831.

specifications inboardfuel:

• for models: Mercruiser
• for makes: Volvo, Penta
• brand: Ra-auto
• mpn: 3858967
• type: Fuel Pressure Regulator Replacement
• manufacturer warranty: 1 Year
• unit type: Unit
• fitment: For Volvo Penta 3858967 And Mercruiser 4.3, 5.0, 5.7 Engines
• material: Plastic, Steel, Rubber
• replacement 1: Replaces Volvo Penta 3858967
• replacement 2: Replaces Mercruiser Part Numbers 2149831, 885174, And 21491831
• features: Durable, Easy To Install
• compatible model: Design To Match Oem Specs Precisely For Seamless Functionality

payments inboardfuel:

• wallet: google-pay
• credit card: visa
• other

offer inboardfuel:

• sold #: 13
• options: ship-to-home
• availability: in stock
• in stock #: 5
• started: october 11, 2025
• prices: $25.00–$316.95
• item condition:
  • New
  • New other (see details)

returns inboardfuel:

• paid by: seller
• time: 60 days
• policy: returns accepted

general inboardfuel:

• category: Boat Parts > Inboard Engines Components > Intake Fuel Systems

shipping inboardfuel:

• class: standard
• type: fixed
• carrier: usps
• service: usps first class
• tRansit: 6-12 days

seller inboardfuel:

• Rating: 100.0%
• city: walton, kentucky
• # reviews: 357