SKU: 71172869155

805227A1 Fuel Pressure Regulator Assembly for Mercury Mercruiser | JLM Marine

Sale price$35.06 Regular price$38.95
Save 10%

Pay in installments of $9.74 with ShopPay, AfterPay and Klarna

Shipping Estimate
USA
  • USA
  • CAN

Ships within 48 hours · Estimated delivery Aug 14 - Aug 19

Promo Codes Available:

For Your Every Summer RSVP, with Code: SUMMER15

Description

805227A1 Fuel Pressure Regulator Assembly for Mercury Mercruiser | JLM MarineFuel Pressure Regulator Assembly for Mercury Mercruiser 7. 4L 8. 2L 502MAG 454 EFI Stern Drive Engines This Fuel Pressure Regulator Assembly is engineered for MerCruiser stern drive engines including 7. 4L LX MPI, 454 & 502 Mag MPI, and 8. 2L MPI models. It ensures precise fuel pressure regulation for optimal engine performance and reliability in Electronic Fuel Injection (EFI) systems. This assembly directly replaces Mercury Mercruiser OEM part

Fuel Pressure Regulator Assembly for Mercury Mercruiser 7.4L 8.2L 502MAG 454 EFI Stern Drive Engines

This Fuel Pressure Regulator Assembly is engineered for MerCruiser stern drive engines including 7.4L/LX MPI, 454 & 502 Mag MPI, and 8.2L MPI models. It ensures precise fuel pressure regulation for optimal engine performance and reliability in Electronic Fuel Injection (EFI) systems.

This assembly directly replaces Mercury Mercruiser OEM part number 805227A1, providing a reliable aftermarket solution for your stern drive maintenance needs.

  • Complete regulator assembly ready for installation
  • Designed for EFI fuel system applications
  • Ensures proper fuel pressure for smooth engine operation

Part Number Cross-Reference

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

Brand Part Number
Mercury Mercruiser 805227A1

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.

Brand Model
MerCruiser MCM/MIE 7.4L/LX MPI
MerCruiser 454 Mag MPI
MerCruiser 502 Mag MPI
MerCruiser 8.2L MPI

Technical Specifications

Specification Value
OEM Part Number 805227A1
Application MerCruiser Stern Drive Engines (EFI)
Component Type Fuel Pressure Regulator Assembly

Package Contents

This package contains the following component:

  • 1 × Fuel Pressure Regulator Assembly

Installation Guide

  1. Disconnect the battery to prevent electrical hazards during installation.
  2. Relieve fuel system pressure by following your engine manufacturer's procedure to prevent fuel spray.
  3. Locate the existing fuel pressure regulator on your MerCruiser stern drive engine.
  4. Disconnect fuel lines from the regulator carefully, using a rag to catch any residual fuel.
  5. Remove mounting hardware securing the old regulator to the engine.
  6. Remove the old regulator assembly and set aside.
  7. Position the new regulator assembly in place, ensuring proper alignment with mounting points.
  8. Secure with mounting hardware, tightening bolts to manufacturer specifications.
  9. Reconnect fuel lines to the new regulator, ensuring all connections are secure and properly seated.
  10. Check all fittings and connections for tightness to prevent fuel leaks.
  11. Reconnect the battery and turn the ignition to prime the fuel system (do not start yet).
  12. Inspect for leaks, then start the engine and verify proper fuel pressure and smooth operation.

Troubleshooting & FAQ

Q: How do I confirm this fuel pressure regulator fits my MerCruiser engine?
A: Verify your engine model against the compatibility table above (7.4L/LX MPI, 454/502 Mag MPI, or 8.2L MPI). Cross-reference your existing part number with 805227A1, or consult your engine's parts diagram using the links provided.

Q: What are the signs that my fuel pressure regulator needs replacement?
A: Common symptoms include rough idle, poor acceleration, fuel leaks near the regulator, black smoke from exhaust, or difficulty starting. If you notice fuel pressure irregularities or engine performance issues, inspect the regulator.

Q: Can I install this regulator myself or do I need a professional?
A: If you have mechanical experience and can safely relieve fuel system pressure, you may install it yourself. However, due to the fire hazard of working with fuel systems, professional installation is recommended for safety and warranty purposes.

Q: How often should I replace the fuel pressure regulator?
A: Fuel pressure regulators typically last many years under normal conditions. Replace when you notice performance issues, fuel leaks, or during major fuel system overhauls as preventive maintenance.

Q: Is this an OEM part or 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.
Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. Standard Shipping : 3-10 business days
  • If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
  • Please click here for more details>>> Return & Exchange Policy
SKU: 71172869155

Discover Niche Categories That Outsell

Top-Converting Item to Boost Your Average Order

4.1 ★★★★★
Based on 28 reviews
Sort
Highest Rating
Newest First
Oldest First
Product Reviews
B
Verified Purchase
Barbara
Pawtucket, US
★★★★★ 5
Nice!
Size: Medium, Color: Bright Blue
My husband loves these. He’s got black, navy, bright blue, burgundy, grey…. and I’m sure I may be missing some! They hold up nicely after repeated washings in cold water in the machine and I always hang to dry. For golf they are fabulous because they are non constricting and comfortable while playing in the hot Florida sun which he does on a daily basis. They run very true to size….he takes his usual medium and they fit perfectly. Highly recommend!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on February 21, 2026
C
Verified Purchase
Cartripa
Lake Worth, US
★★★★★ 5
nice fit
I am thoroughly impressed with this Amazon Essentials white shirt. For the price, the quality is outstanding. The fabric feels soft, breathable, and has a good weight to it
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on June 12, 2026
R
Verified Purchase
rms
San Leandro, US
★★★★★ 5
Nice shirt, great price.
Fit Type: Regular Fit, Color: White, Size: Medium
Worn it twice and I find it very comfortable. I wear it outside and casually to protect my arms and neck from the sun and find it more comfortable than a long sleeve t-shirt. The price is comparable. If I was to wear it to the office it would have to be ironed. I bought one shirt to try it and I will be buying more.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 8, 2026
A
Verified Purchase
Anthony Carabello
Los Angeles, US
★★★★★ 4
Nice shirt!
Fit Type: Regular Fit, Color: White, Size: X-Large
I added one of these shirts to another order just to see if they were any good. I was pleasantly surprised by the quality. It fits perfectly and looks pretty nice for a low cost casual dress shirt. Materials seem decent quality. Comfortable, soft fabric. Didn’t shrink too much in the washer and dryer. We’ll see how it holds up long term but so far so good
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on November 12, 2025
M
Verified Purchase
madison
Phoenix, US
★★★★★ 5
nice quality
Fit Type: Regular Fit, Color: White, Size: Small
nice quality shirt. bought this just so i had at least one nice white button down and it's great. fits well and is a nice white color.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 11, 2026

recommand products