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Fuel Injector – Fits Mercury 4.5L & 6.2L MPI (Replaces 8M0057686, 8M6000652, 8M6002428)
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Fuel Injector – Fits Mercury 4.5L & 6.2L MPI (Replaces 8M6002428)
This is a direct replacement fuel injector for Mercury MerCruiser 4.5L (200-250 HP) and 6.2L (300-350 HP) MPI sterndrive engines, series 2A441953 & Up and 2A456613 & Up respectively. It is also compatible with select Mercury 4-Stroke EFI outboards from 65 to 115 HP (serial 2B095049 & Up).
This component directly replaces Mercury part numbers 8M0057686, 8M6000652, and 8M6002428, along with Quicksilver part number 8M6002428. Constructed with a corrosion-resistant metal housing and precision-machined internal components, it features an 8-hole nozzle designed for efficient fuel atomization.
- Installation: Direct bolt-on replacement for specified models.
- Fuel Compatibility: Designed for gasoline, including ethanol blends.
- In the Box: Includes one fuel injector and a new seal kit.
Part Number Cross-Reference
Use this table to confirm equivalent part numbers across brands.
| Brand | Part Number |
|---|---|
| Mercury | 8M0057686 |
| Mercury | 8M6000652 |
| Mercury | 8M6002428 |
| Quicksilver | 8M6002428 |
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.
Mercury Marine
| Brand | Model | Rated HP | Stroke | Years | OEM Part No. | Notes |
|---|---|---|---|---|---|---|
| Mercury | 4.5L MPI 200 Alpha/Bravo | 200 | 4-Stroke | 2A441953 & Up | 8M6002428 | Current active part |
| Mercury | 4.5L MPI 200 Alpha/Bravo EC | 200 | 4-Stroke | 2A441953 & Up | 8M6002428 | Current active part |
| Mercury | 4.5L MPI 250 Alpha/Bravo | 250 | 4-Stroke | 2A441953 & Up | 8M6002428 | Current active part |
| Mercury | 4.5L MPI 250 Alpha/Bravo EC | 250 | 4-Stroke | 2A441953 & Up | 8M6002428 | Current active part |
| Mercury | 6.2L MPI 300 | 300 | 4-Stroke | 2A456613 & Up | 8M6002428 | Current active part |
| Mercury | 6.2L MPI 300 EC | 300 | 4-Stroke | 2A456613 & Up | 8M6002428 | Current active part |
| Mercury | 6.2L MPI 350 | 350 | 4-Stroke | 2A456613 & Up | 8M6002428 | Current active part |
| Mercury | 6.2L MPI 350 EC | 350 | 4-Stroke | 2A456613 & Up | 8M6002428 | Current active part |
Mercury Outboard (4-Stroke)
| Brand | Model | Rated HP | Stroke | Years | OEM Part No. | Notes |
|---|---|---|---|---|---|---|
| Mercury | 65 JET | 65 | 4-Stroke | 2B095049 & Up | 8M6002428 | Current active part |
| Mercury | 75 EFI | 75 | 4-Stroke | 2B095049 & Up | 8M6002428 | Current active part |
| Mercury | 80 EFI | 80 | 4-Stroke | 2B095049 & Up | 8M6002428 | Current active part |
| Mercury | 80 JET | 80 | 4-Stroke | 2B095049 & Up | 8M6002428 | Current active part |
| Mercury | 90 EFI | 90 | 4-Stroke | 2B095049 & Up | 8M6002428 | Current active part |
| Mercury | 100 EFI | 100 | 4-Stroke | 2B095049 & Up | 8M6002428 | Current active part |
| Mercury | 115 EFI | 115 | 4-Stroke | 2B095049 & Up | 8M6002428 | Current active part |
Technical Specifications
| Specification | Value |
|---|---|
| Product Type | Fuel Injector |
| Installation | Direct replacement, bolt-on |
| Fuel Type | Gasoline (compatible with ethanol blends) |
| Connection | Standard electrical connector |
| Housing Material | Corrosion-resistant metal |
| Housing Color | Black with green O-ring |
| Dimensions | 6.20" L x 4.60" W x 1.90" H (157.5 x 116.8 x 48.3 mm) |
| Weight | 0.13 lbs (59 g) |
| Fitting Type | Multi-port injection (MPI) |
| Working Pressure | 43 PSI (290 kPa) |
| Operating Temperature | 160-180°F (71-82°C) |
| Warranty | One Year |
| Other Technical Attributes | 8-hole nozzle design, precision-machined components |
Package Contents
- 1 x Fuel Injector (8M6002428)
- 1 x Seal Kit (25-879150A09)
Installation Guide
- Disconnect the negative battery terminal and safely relieve the fuel system pressure according to your engine's service manual.
- Unplug the electrical connector from the fuel injector you intend to replace.
- Clean the area around the fuel rail to prevent debris from entering the engine.
- Remove the bolts securing the fuel rail to the intake manifold.
- Carefully lift the fuel rail assembly away from the engine just enough to access the injector.
- Remove the retaining clip and gently pull the old injector from the fuel rail.
- Lightly lubricate the new O-rings with clean engine oil and press the new injector firmly into the fuel rail.
- Reinstall the retaining clip and ensure the injector is secure.
- Carefully reseat the fuel rail, ensuring all injectors are properly aligned, and torque the retaining bolts to the manufacturer's specification.
- Reconnect the electrical connector, re-attach the battery terminal, prime the fuel system, and check thoroughly for any leaks before starting the engine.
Troubleshooting & FAQ
Q: How do I confirm this injector fits my Mercury engine?
A: Check your engine's serial number. This injector fits 4.5L MPI sterndrives with serials 2A441953 & Up, 6.2L MPI sterndrives with serials 2A456613 & Up, and 4-stroke outboards (65-115 HP) with serials 2B095049 & Up. The most reliable method is to cross-reference the OEM part number (e.g., 8M6002428) with your engine's parts diagram.
Q: What are the signs of a failing fuel injector?
A: Common symptoms include rough idling, frequent engine misfires (which may trigger a check engine light), difficulty starting, poor acceleration, a decrease in fuel economy, or a noticeable smell of unburnt gasoline around the engine.
Q: Is this a direct bolt-on part?
A: Yes, this is designed for a direct, bolt-on installation with no modifications required for the compatible models listed. It uses the standard electrical connector and comes with the necessary seals for a complete replacement.
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.
We can ship to virtually any address in the world with free shipping available for most regions.
For our typical US and Canadian customers , our shipping timeframes are as follows:
- Amazon FBA: orders will be delivered within 1-5 business days after placing the order (during certain special periods such as major promotions, Christmas, etc., the delivery time of Amazon FBA may be affected).
- US warehouse shipment: orders will be delivered within 5 days after placing the order.
- China warehouse shipment: orders will be delivered about 12 days after placing the order.
When you place an order, we will estimate shipping and delivery dates for you based on the availability of your items and the shipping options you choose. Depending on the shipping provider you choose, shipping date estimates may appear on the shipping quotes page.
Please also note that the shipping rates for many items we sell are weight-based. The weight of any such item can be found on its detail page. To reflect the policies of the shipping companies we use, all weights will be rounded up to the next full pound.
Founded in 2002, JLM Marine has established itself as a dedicated manufacturer of high-quality marine parts, based in China. Our commitment to excellence in manufacturing has earned us the trust of top marine brands globally.
As a direct supplier, we bypass intermediaries, which allows us to offer competitive prices without compromising on quality. This approach not only supports cost-efficiency but also ensures that our customers receive the best value directly from the source.
We are excited to expand our reach through retail channels, bringing our expertise and commitment to quality directly to boat owners and enthusiasts worldwide.
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