VRO Fuel Pump Rebuild Kit – Fits Johnson/Evinrude 3-Cylinder 60-70 HP & V4 Crossflow Motors (Replaces 3CV4)

VRO Fuel Pump Rebuild Kit – Fits Johnson/Evinrude 3-Cylinder 60-70 HP & V4 Crossflow Motors

This fuel pump rebuild kit fits specific Johnson/Evinrude 60-70 HP 3-cylinder engines and V4 crossflow motors. It is designed as a direct replacement for pre-1984 VRO (Variable Ratio Oiling) pump systems, converting the engine to a pre-mix fuel setup.

This component is a direct replacement for HeuroFosh/IBSPOT 3CV4, QuickMarine 3CV4 VRO, and QMOTOM fuel pump kits.

• Installation Method: Direct replacement for original VRO systems.
• Fuel Compatibility: For use with gasoline pre-mixed with 2-stroke oil at a 50:1 ratio.
• Complete Kit: Includes the pump, bracket, gasket, extra hose, bolts, and zip ties for installation.

Part Number Cross-Reference

Use this table to confirm equivalent part numbers across OEM and aftermarket brands.

Compatible Engine Models

Confirm your engine model/year in the table below. For Johnson/Evinrude owners, here’s a guide to help you identify your engine’s serial/model: Johnson/Evinrude Serial Number Guide.

Technical Specifications

Package Contents

• 1 x Pre-1984 fuel pump with custom bracket
• 1 x Gasket
• 1 x Extra length of hose
• 4-6 x Bolts (quantity varies by brand)
• 6 x Zip ties
• 1 x Installation instructions

Installation Guide

1. Safety First: Disconnect the battery and ensure the work area is well-ventilated. Relieve any pressure in the fuel system.
2. Access the Pump: Locate the old VRO pump. It is often mounted on the silencer cover or engine block.
3. Disconnect Lines: Carefully disconnect the fuel inlet, fuel outlet, and oil lines from the pump. Note their positions.
4. Remove Old Pump: Unbolt and remove the old VRO pump assembly and its gasket.
5. Prepare Surface: Clean the mounting surface on the engine, ensuring it is free of old gasket material or debris.
6. Install New Gasket & Pump: Place the new gasket onto the engine block and mount the new fuel pump assembly using the provided bolts.
7. Connect Hoses: Attach the main fuel inlet and outlet hoses. Since this is a pre-mix pump, the original oil line and wiring for the VRO system must be properly capped or removed as per your service manual's instructions.
8. Secure Lines: Use the included zip ties to secure the fuel lines and prevent them from kinking or chafing.
9. Prime and Test: Prime the fuel system using the primer bulb until firm. Start the engine and carefully check for any fuel leaks around the pump and connections.

Troubleshooting & FAQ

Q: How do I confirm this kit fits my engine?
A: Check your engine model, horsepower, and year. This kit is specifically for pre-1984 Johnson/Evinrude 60-70 HP 3-cylinder and V4 Crossflow motors that used the 3CV4 style pump before the full VRO system was introduced. Refer to the "Compatible Engine Models" table and cross-reference your part number.

Q: Is this a direct replacement for my VRO pump?
A: Yes, this is a conversion kit designed to replace and bypass the original VRO (Variable Ratio Oiling) system. After installation, you must switch to pre-mixing your fuel and oil at a 50:1 ratio. The pump does not perform oil injection.

Q: What does "pre-mix" mean?
A: Pre-mix means you must manually mix 2-stroke outboard oil with gasoline before filling your fuel tank. The correct ratio is 50:1, which is equivalent to 1 pint of oil for every 6 gallons of gasoline.

Q: What are common signs that my old fuel pump is failing?
A: Symptoms of a failing fuel pump include difficulty starting the engine, intermittent stalling, rough idling, hesitation during acceleration, and a general loss of power, particularly at higher RPMs.

Q: OEM vs. Aftermarket?
A: This listing is an aftermarket replacement part (not an OEM component). We build to OEM specifications using comparable-grade materials. Production is done in an ISO9002-certified facility, and each batch is inspected for consistent performance.

Q: How fast do you ship and how much does it cost?
A: We offer fast global shipping—typically 5–15 days worldwide—and standard shipping is free. Expedited options are available at checkout depending on your location.

Q: What is your warranty and return policy?
A: This product includes a 1-year warranty against manufacturing defects under normal use. If something goes wrong, contact our support team with your order details. Returns are accepted within our standard return window (unused & in original condition); please see our policy page or reach out for instructions.

Important Notes

• Verify that the product images and specifications match your original part. If discrepancies exist—even if your model is listed—do not proceed with the purchase.
• This product is an aftermarket replacement part and is not an OEM component.
• Professional installation is recommended to ensure safety and optimal performance.

Why Choose JLM MARINE?

• Quality Assured: As a trusted manufacturer for over 20 years, we supply top marine brands globally.
• Fast Global Shipping: Free delivery worldwide in 5–15 days.
• Direct from Manufacturer: Competitive pricing without compromising quality.