Mercury MerCruiser OptiMax Linkage Retaining Clip - 54-475451
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The Mercury MerCruiser Quicksilver 54-475451 is a genuine Mercury Marine OEM retaining clip used in select Mercury, Mariner, and MerCruiser linkage, hose, and component-routing locations. This clip is used where the factory parts diagram calls for 475451 / 54-475451, helping secure small linkage rods, cable-related components, tubing, or routed lines so they stay correctly positioned under engine vibration and normal operating movement.
Key Features
- Genuine Mercury Marine factory OEM retaining clip.
- Mercury/MerCruiser part number: 54-475451.
- Manufacturer part number: 475451.
- Component class: Mercury 54-series clamp, clip, and retaining hardware.
- GTIN/UPC: 745061492387.
- Listed shipping weight: 0.05 lb.
- Listed shipping dimensions: 1.38 in. W x 1.00 in. L x 0.75 in. H.
- Used in select control linkage, hose-routing, oil-system, and engine-mounted retaining locations where specified by Mercury diagram.
Application Compatibility
Common application context includes select Mercury and MerCruiser assemblies by serial number and diagram location, including:
- Select Mercury OptiMax / DFI outboard applications where specified
- Select 225 Sport XS, 225XS, 250 Sport XS, 250XS, and 300XS outboard assemblies where specified
- Select 3.0L DFI and 3.2L DFI outboard oil-system, linkage, or routing locations where specified
- Select MerCruiser 8.1L Inboard, 8.1L Inboard H.O., and 8.1L TowSport assemblies where specified
- Throttle, shift, oil-line, hose-retention, and routing positions that call for 54-475451 / 475451
Use this clip only where the Mercury/MerCruiser parts diagram specifically calls for 54-475451 / 475451.
Fitment Notice
Confirm fitment by engine serial number, system diagram, and exact clip location before ordering. Mercury uses many similar clips, retainers, clamps, and routing fasteners across outboard and inboard assemblies, and the correct part depends on the linkage, hose, tube, or harness position shown in the factory diagram.
When This Part Needs Replacement
Replace this clip if it is missing, cracked, stretched, corroded, loose, distorted, or no longer holds the linkage or line securely. A worn or missing retaining clip can allow a rod, cable, hose, or oil line to move out of position, which may cause binding, chafing, leaks, poor throttle/shift response, or service issues under vibration.
Installation Notes
Install this clip in the exact position shown in the Mercury/MerCruiser diagram. Inspect the related linkage rod, cable end, hose, tube, bracket, grommet, fitting, or routing channel while the clip is removed. Make sure the retained component is fully seated and moves freely where movement is required. For oil-system or fuel-adjacent routing locations, confirm the line is not kinked, rubbed, pinched, or routed against heat or moving parts.
Alternate/Superseded Part Numbers
- 54-475451 — Mercury/MerCruiser formatted part number
- 475451 — Manufacturer part number
Parts Desk Insight
Small retaining clips are easy to overlook, but they are often what keeps a linkage rod, hose, or oil line in the correct working position. When replacing one, inspect the surrounding bracket and retained component as well, because a missing clip may be a sign of vibration, incorrect routing, or previous service damage.
Shipping: Ships same or next day for fast Canada wide shipping. ⚓
Shipping information
In-stock and OEM parts: ship same or next business day.
Locally warehoused items: ship within 3–4 business days.
Special-order items: timeline confirmed after order.
Returns & warranty
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We stand firmly behind the quality of every product we sell. Your confidence matters to us — and we back it with a straightforward 30-Day Satisfaction Guarantee.
If you are not fully satisfied, you may request a return within 30 days of delivery. All returns must receive pre-approval prior to being sent back. Unauthorized returns will not be accepted.
To qualify for a return:
Item must be in new, unused condition
Product must be in its original packaging
All parts, components, hardware, manuals, and accessories must be included
Packaging must be undamaged and suitable for resale
Important:
Electronics are strictly inspected. No returns on open-box electronics. Exceptions may apply only with prior written approval. Any electronic unit that has been installed, powered, activated, or altered may not be eligible for return.
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