Heurofosh Power Steering Pump for MerCruiser 4.3–8.2L (16792A39) — Direct-fit OEM Replacement, Restores Steering

Heurofosh 16792A39 is a direct-fit replacement power steering pump engineered for MerCruiser gasoline engines from 4.3L through 8.2L, restoring hydraulic steering performance on Alpha and Bravo drive setups.

Designed to match OEM fitment numbers including 16792A1, 16792A39, 16792A33 and 18-7508, this pump is intended for a range of MerCruiser V6 and V8 marine engines. It’s built to mount and function like the original unit in popular models such as the 4.3L 262 V6, 5.7L 350 V8, 7.4L 454 V8 and others listed by MerCruiser. Before ordering, confirm your existing pump’s return hose orientation and part number to ensure compatibility; contact the seller with your engine model for help if uncertain.

How will this pump improve steering feel on my boat?

Replacing a worn or failing pump with this Heurofosh unit brings back consistent hydraulic pressure, which translates to smoother, more responsive steering. It reduces steering effort and restores predictable wheel feedback, especially at low speeds or while maneuvering in tight spaces.

• Replaces leaking or low-pressure OEM pumps.
• Restores steady hydraulic flow for easier wheel turns.
• Reduces noise and vibration linked to failing pumps.

Which MerCruiser engines and OEM numbers does it fit?

This pump is compatible with a wide set of MerCruiser gasoline engines across the V6 and V8 lineup and supports common Alpha and Bravo drive configurations. Verify fit by matching the OEM part number stamped on your old pump or by checking the return hose exit orientation.

• Fits engines: 4.3L 262 V6, 5.0L 305 V8, 5.7L 350 V8, 5.8L 357, 6.2L 377 V8, 6.3L 383/385, 7.4L 454 V8, 8.2L 502 V8.
• Accepts OEM numbers: 16792A1, 16792A39, 16792A33, 18-7508.
• Confirm return hose exits bottom of reservoir for correct orientation.

What symptoms indicate I should replace my pump now?

Several unmistakable signs point to pump trouble: persistent whining or squealing from the engine bay, stiff or unresponsive steering, and unusual knocking or vibrations when turning the wheel. Addressing these symptoms early helps prevent further steering system wear and can avoid sudden loss of hydraulic assist while underway.

• Unpleasant whining or loud squeal during steering.
• Stiff or rigid steering wheel with delayed response.
• Knocking noises or inconsistent hydraulic feel when turning.

How do I confirm compatibility before purchase?

Double-check the part number on your old pump and visually inspect the reservoir return hose location. If your pump’s return hose exits the bottom of the reservoir and the part numbers match one of the accepted OEM references, this Heurofosh pump is likely correct. When in doubt, provide your engine model to the seller for confirmation.

• Compare your existing pump’s part number with 16792A39/16792A1/16792A33/18-7508.
• Verify the reservoir return hose exits from the bottom as shown in product photos.
• Contact seller with engine model for fitment assistance.

Who is this for: Boat owners, marine mechanics and fleet operators running MerCruiser-powered vessels who need a reliable, drop-in replacement pump for Alpha or Bravo drive systems. It suits anyone restoring steering performance on 4.3L–8.2L MerCruiser gas engines who wants OEM-compatible fitment and clear guidance on confirming part orientation before installation.