8M0095953 Motor Fitting Assembly for Mercury MerCruiser 4.5L MPI 250 Alpha Bravo | JLM Marine

Motor Fitting Assembly – Fits Mercury MerCruiser 4.5L MPI 250 HP Alpha Bravo Stern Drive Engines

This Motor Fitting Assembly is engineered for Mercury MerCruiser stern drive engines, specifically the 4.5L MPI 250 HP models equipped with Alpha and Bravo drive systems. Designed to meet the demanding requirements of marine propulsion systems, this fitting ensures reliable performance and proper fuel system integration.

This component serves as a direct replacement for OEM part numbers 8M0095953 and 8M0133716, offering seamless compatibility with most MerCruiser 4.5L MPI 250 stern drive configurations.

• Precision-engineered for MerCruiser 4.5L MPI stern drive applications
• Compatible with both Alpha and Bravo drive systems
• Direct fit replacement for simplified 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 Mercury owners, here's a guide to help you identify your engine's serial/model: Mercury Serial Number Guide. You can also review exploded diagrams to verify part numbers: Mercury Parts Diagrams & Catalog.

Technical Specifications

Package Contents

This package includes:

• 1 × Motor Fitting Assembly

Installation Guide

1. Disconnect the battery and relieve fuel system pressure before beginning work. Ensure the engine is cool and the work area is well-ventilated.
2. Locate the existing motor fitting on your MerCruiser stern drive engine. Take a photo or note the orientation and connection points for reference.
3. Using appropriate wrenches or sockets, carefully disconnect fuel lines or hoses attached to the old fitting. Have a container ready to catch any residual fuel.
4. Remove the mounting hardware securing the motor fitting to the engine block. Keep all fasteners organized for reinstallation.
5. Inspect the mounting surface and sealing area for corrosion, debris, or damage. Clean thoroughly with a suitable solvent and lint-free cloth.
6. Position the new motor fitting assembly in place, ensuring correct alignment with mounting holes and fuel line ports.
7. Install new gaskets or O-rings as required (if included or available separately). Do not reuse old seals.
8. Hand-tighten all mounting bolts first to ensure proper threading and alignment. Then torque to manufacturer specifications in a cross-pattern sequence.
9. Reconnect fuel lines to the new fitting, ensuring hose clamps are properly seated and tightened to prevent leaks.
10. Double-check all connections and fasteners for tightness. Verify that no hoses are kinked or interfering with moving parts.
11. Reconnect the battery and turn the ignition to the "on" position (without starting) to pressurize the fuel system. Inspect all connections for leaks.
12. Start the engine and allow it to idle while monitoring for fuel leaks or abnormal operation. Correct any issues immediately before operating the vessel.

Troubleshooting & FAQ

Q: How do I confirm this motor fitting will fit my MerCruiser engine?
A: Verify that your engine is a 4.5L MPI 250 HP stern drive with either an Alpha or Bravo drive system. Cross-reference your existing part number with 8M0095953 or 8M0133716. You can also consult the Mercury parts diagrams linked above to confirm fitment visually.

Q: What are the signs that my motor fitting needs replacement?
A: Common indicators include visible fuel leaks around the fitting, corrosion or cracking of the fitting body, difficulty maintaining fuel pressure, or engine performance issues such as rough idling or stalling. Any fuel leak should be addressed immediately for safety.

Q: Can I reuse the old gaskets or seals when installing this fitting?
A: No, always use new gaskets, O-rings, or seals during installation to ensure a proper seal and prevent leaks. Reusing old seals can lead to fuel leaks and compromised engine performance.

Q: Is this an OEM part or an aftermarket replacement?
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.