Power Steering Cylinder Seal Kit – Fits Mercury Verado L6 Engines
This aftermarket Power Steering Cylinder Seal Kit is engineered to fit Mercury Verado L6 outboard engines, ensuring reliable performance and restoring proper steering function. Designed to match OEM specifications, this seal kit provides a cost-effective solution for maintaining your power steering system.
This kit directly replaces Mercury Marine OEM part numbers 8M0045604 and 896173A01, offering seamless compatibility with your existing steering cylinder assembly.
- Complete seal kit for Mercury Verado L6 power steering cylinders
- Includes all necessary seals and components for a full rebuild
- Direct replacement for OEM parts, ensuring proper fit and function
Part Number Cross-Reference
Use this table to confirm equivalent part numbers across OEM and aftermarket brands.
| Brand |
Part Number |
Notes |
| Mercury Marine |
8M0045604 |
Primary OEM part number |
| Mercury Marine |
896173A01 |
Cross-reference OEM part number |
| Quicksilver |
8M0045604 |
Mercury service parts brand |
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 |
Notes |
| Mercury |
Verado L6 |
All L-6 Verado power steering cylinders |
Technical Specifications
| Specification |
Value |
| Manufacturer PN |
8M0045604 |
| Internal Code |
710-8M0045604 |
| Application |
Mercury Verado L6 Power Steering Cylinder |
| Part Type |
Seal Kit (Complete rebuild kit) |
Package Contents
This Power Steering Cylinder Seal Kit includes:
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1x Complete Seal Kit (The package contains all the parts shown in the picture)
Installation Guide
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Preparation: Disconnect the battery and relieve any hydraulic pressure in the steering system before beginning work.
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Remove Cylinder: Disconnect the steering cylinder from the tilt tube and engine mounting points, taking care to mark orientation for reassembly.
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Disassembly: Carefully disassemble the steering cylinder, noting the position of each component. Clean all metal parts thoroughly with solvent and inspect for damage or wear.
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Remove Old Seals: Use appropriate seal removal tools to extract old O-rings, seals, and gaskets without scratching cylinder walls or piston surfaces.
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Inspect Components: Check cylinder bore and piston rod for scoring, pitting, or corrosion that could compromise new seals. Replace cylinder if damage is found.
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Install New Seals: Lubricate new seals with clean hydraulic fluid or assembly grease before installation. Install seals carefully in the correct orientation as shown in the kit diagram.
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Reassemble Cylinder: Reinstall all components in reverse order of disassembly, ensuring proper alignment and torque specifications per Mercury service manual.
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Reinstall Cylinder: Mount the steering cylinder back to the engine and tilt tube, reconnecting all hydraulic lines securely.
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Bleed System: Fill the power steering reservoir with Mercury-approved hydraulic fluid and bleed the system according to manufacturer procedures.
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Test Operation: Reconnect the battery and start the engine. Turn the steering wheel lock-to-lock several times to verify smooth operation and check for leaks.
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Final Inspection: After initial testing, recheck all connections and fluid level. Monitor for leaks during the first few hours of operation.
Troubleshooting & FAQ
Q: How do I know if my steering cylinder seals need replacement?
A: Common signs include hydraulic fluid leaks around the cylinder, difficulty steering or stiff steering response, unusual noises when turning, or visible fluid on the cylinder body. If you notice any of these symptoms, inspect the seals and replace if worn or damaged.
Q: Can I use this seal kit on all Mercury Verado models?
A: This seal kit is specifically designed for L-6 Verado power steering cylinders. Always verify your engine model and compare part numbers before ordering to ensure proper fitment.
Q: Do I need special tools to install this seal kit?
A: While basic hand tools will handle most of the job, seal installation tools and a torque wrench are recommended for proper installation. You'll also need clean hydraulic fluid for lubrication and bleeding the system after reassembly.
Q: How often should I replace my steering cylinder seals?
A: Seal replacement is typically based on condition rather than a fixed interval. Inspect seals annually or whenever you notice steering performance issues. Operating in harsh conditions (saltwater, extreme temperatures) may require more frequent inspection and replacement.
Q: What's the difference between OEM and aftermarket seal kits?
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?
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Quality Assured: As a trusted manufacturer for over 20 years, we supply top marine brands globally.
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Fast Global Shipping: Free delivery worldwide in 5–15 days.
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Direct from Manufacturer: Competitive pricing without compromising quality.