Mercury MerCruiser Quicksilver Power Steering Pump Pulley 8M0150723
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Mercury / MerCruiser Quicksilver Power Steering Pump Pulley — 8M0150723
The Mercury Quicksilver 8M0150723 is a genuine OEM power steering pump pulley used on many MerCruiser sterndrive engines. This pulley is driven by the engine’s serpentine belt system, transferring rotational power from the crankshaft to the power steering pump, allowing smooth steering operation.
Key Specifications
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Part Number: 8M0150723
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Type: Power steering pump pulley
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Drive System: Serpentine belt
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Material: Marine-grade steel
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Diameter: approx. 5-3/4 in (146 mm)
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OEM Brand: Mercury Marine / Quicksilver
Compatible Engines
Commonly used on MerCruiser sterndrive engines with serpentine belt systems, including:
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4.3L V6
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5.0L V8
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5.7L V8
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6.2L V8
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7.4L V8
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8.2L V8
Typical applications span engines produced approximately 1996–2014 depending on configuration.
Superseded / Cross-Reference Numbers
This pulley may also appear under several equivalent numbers:
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861578 (earlier MerCruiser part number)
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Sierra 18-8297 (aftermarket equivalent)
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807731T (cross reference)
Function in the Engine
The pulley is mounted to the power steering pump shaft and allows the serpentine belt to:
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Spin the power steering pump
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Maintain proper hydraulic pressure for steering
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Keep the belt system aligned with other accessories
A worn or damaged pulley can cause belt squeal, belt misalignment, or premature belt wear.
⚠️ Fitment Tip:
Always verify compatibility using the engine serial number. MerCruiser engines with the same displacement can use different accessory layouts depending on the model year and cooling configuration.
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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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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