Quicksilver Water Pump Assembly for MerCruiser V6 and V8 Sterndrive Engines, Black Housing Complete Kit

Quicksilver 8M0113734 is a complete water pump assembly with housing and gaskets engineered to replace the cooling pump on specified MerCruiser V6 and V8 sterndrive engines.

This kit supplies the core cooling component needed when servicing older General Motors–based MerCruiser sterndrive engines (V6 and V8 models listed). It includes the pump, the housing, and the necessary seals so you can restore proper coolant circulation through the engine block and help maintain operating temperatures under load. Quicksilver parts are built to match OEM specifications and are intended to simplify repairs with a direct-fit replacement.

Will this water pump fit my MerCruiser engine?

Compatibility is specific: the assembly fits V6 MerCruiser engines with serial numbers at or below the listed range and V8 engines in 305, 350, and 377 CID configurations. Always cross-check your engine serial and model against the owner or service manual to confirm fitment before purchase.

• Designed for select V6 engines (serial numbers up to the specified cutoff)
• Fits V8 305, 350, and 377 cubic-inch MerCruiser sterndrives
• Direct-fit replacement to reduce modification or machining
• Refer to your engine’s documentation for precise application details

What does the kit include and how does it simplify installation?

The package arrives as a full assembly: pump impeller and shaft, machined housing, and factory-matched gaskets. Receiving a complete unit cuts down parts sourcing, reduces the chance of missing seals, and typically shortens installation time compared with ordering individual pieces.

• Complete water pump rotor and shaft already installed
• Matched housing engineered for correct alignment and sealing
• Included gaskets for a reliable leak-resistant fit
• OEM-level dimensions to streamline bolt-up and alignment

How durable and reliable is this Quicksilver replacement?

Quicksilver manufactures parts to meet or mirror the original equipment's design and tolerances, using materials and machining suited to marine conditions. While no part prevents all failures, this pump is produced to the same standards that many service technicians expect from OEM-class replacements.

• Engineered to the same fit specifications as original Mercury parts
• Materials selected for corrosion resistance in marine environments
• Produced and inspected to support dependable operation under load
• Sold by a brand with decades of marine parts experience

Who is this for? This Quicksilver water pump and housing kit is aimed at boat owners, marine mechanics, and restoration specialists who maintain MerCruiser sterndrive engines built on General Motors V6 or V8 platforms listed above. Choose this assembly when you need a straightforward, OEM-dimension replacement that includes gaskets and reduces parts hunting. For best results, have the installation performed or verified by a qualified marine service technician and consult your engine’s service manual for torque specs, sealant recommendations, and break-in procedures.