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Water Pump Kit w/Housing 6H3-W0078-00 for Yamaha 50 60 70HP 2/4-Stroke - size: 18-3461

Water Pump Kit w/Housing 6H3-W0078-00 for Yamaha 50 60 70HP 2/4-Stroke - size: 18-3461

Regular price $58.08 USD
Regular price Sale price $58.08 USD
Sale Sold out
Taxes included.

About this item

  • Complete Water Pump Kit WITH Housing (Not Housing-Less 6H3-W0078-00)​ Complete Water Pump Kit WITH Housing (Not Housing-Less 6H3-W0078-00)​ Direct aftermarket replacement for Yamaha lower-unit pump service kits. Replaces 6H3-W0078-00-00, 6H3-W0078-A0-00, 6H3-44311-00-00​ and crosses Sierra 18-3461 (with housing) / 18-3466 / 18-3428-1. Kit includes impeller 6H3-44352-00, housing 6H3-44311-00, insert cup 663-44322-00, wear plate 6H3-44323-00, 3 gaskets, O-ring 93210-46044, woodruff key 90280-03M03, 2× M8 bolts 97095-08045/08055. Match old housing stamp before ordering—this is the WITH-HOUSING version; housing-less 6H3-W0078-00 alone will not include the nylon cup.
  • For Yamaha 2-Stroke 60-70HP & 4-Stroke High-Thrust 50-60HP​ Engineered for 2-stroke 60F / C60 / E60 / P60 / 70 / 70B / C70​ and 4-stroke high-thrust T50 / FT50B/C/G/J / T60 / FT60B/D/G. (Exact model-code/year — 60F 1997-2003, 70B 1997-2003, FT50B 1997-2002, FT60G 2013-up
  • 50/60/70HP Shaft Family Only — NOT 40HP C40/F40, NOT V6 90-150​ Critical:​ 6H3-W0078-00 fits the 50/60/70HP 3-cyl 2-stroke & 4-stroke high-thrust​ lower unit with the 6H3-series driveshaft diameter. It does NOT​ fit 40HP C40/F40 (uses 6E5/63V pump family), nor 75-90HP (6R5/63Y), nor V6 115-150HP. Verify your engine decal reads 60F / 70B / FT50 / FT60​ before ordering.
  • Fixes Overheat, No Tell-Tale Stream & Milkshake Gear Lube​ Resolves weak tell-tale stream, sudden overheat alarm, melted impeller chunks in the housing, and water seeping past the pump seal into gearcase (milky lube). New neoprene impeller, SS316 wear plate/cup, and fresh gaskets restore 4-6 GPM cooling flow. Grease the shaft lightly and clock vanes clockwise on install.
  • Lower-Unit Pull, 25-Minute Service​ Drop lower unit (4× 10mm mid-section bolts + trim tab), unstack old housing/plate/gaskets, seat woodruff key, drop impeller on shaft (vanes bend clockwise), stack new gaskets per diagram, torque housing bolts to 8 ft-lb in cross pattern, rehang lower unit, refill gear lube. Run on flushing muffs 3 min to confirm tell-tale before launch.

Overview

  • Brand: FREPURDO
  • Item Weight: 10.56 ounces
  • Color: balck
  • Material: Metal
  • Engine Type: 2 Stroke
Quantity

Low stock: 10 left

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    The products were easy to browse, and the specifications helped me compare the options before ordering. Everything arrived as expected and worked well for my garage project. I would shop with WrenchVanta again when I need more parts or tools.

  • ⭐⭐⭐⭐⭐

    Marcus Bennett — Phoenix, Arizona

    I ordered several maintenance items and was pleased with the overall experience. The product information was clear, the items were packaged securely, and everything fit the needs of my project. A practical store for automotive and garage essentials.

  • ⭐⭐⭐⭐⭐

    Olivia Turner — Tampa, Florida

    WrenchVanta offers a useful range of products without making the shopping process feel complicated. I found what I needed for routine vehicle maintenance, and the order arrived in good condition. The entire process was straightforward and convenient.

  • ⭐⭐⭐⭐⭐

    Daniel Foster — Sacramento, California

    I picked up a few tools and replacement parts for an ongoing garage project. The products matched their descriptions and have been useful so far. I especially appreciated being able to find different types of automotive supplies in one place.

FAQ

How can I confirm that a part will fit my vehicle?


Review the fitment information, dimensions, specifications, part numbers, and compatibility notes shown on the product page before ordering. Vehicle requirements can vary by year, make, model, engine, trim, and configuration. If you are unsure, consult a qualified mechanic or contact us before placing your order.

Do you sell products for motorcycles and ATVs?


Yes. WrenchVanta carries products for motorcycles and ATVs, including selected body, engine, drivetrain, brake, suspension, electrical, lighting, exhaust, storage, and protective accessories. Always check the product description to confirm its intended application.

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Once tracking information becomes available, it will be sent to the email address provided at checkout. Tracking activity may take some time to appear after the carrier receives the shipment. You may also contact us if you need help locating your tracking details.

Can items from the same order arrive separately?


Yes. Products may be stored or fulfilled from different locations, so an order containing multiple items may arrive in separate packages and on different dates. When available, separate tracking information will be provided for each shipment.

Can I change or cancel an order after placing it?


Contact us as soon as possible if you need to change or cancel an order. We will try to accommodate your request, but changes and cancellations cannot be guaranteed once processing or shipment has begun.

What should I do if my order arrives damaged, defective, or incorrect?

Contact us promptly at nuaialmvauaoama@gmail.com with your order number, a description of the issue, and clear photographs of the item, packaging, shipping label, and any visible damage. Keep the product and original packaging until we provide further instructions.

What is your return and refund process?


Return eligibility depends on the item’s condition, return reason, and the requirements stated in our Return & Refund Policy. Contact us before returning any product to request instructions. Items sent back without authorization may not be accepted.

Do you provide installation services or technical advice?


WrenchVanta does not provide installation services. Product information is offered for general shopping purposes and should not replace professional mechanical advice. Safety-critical, electrical, performance, or technically demanding components should be inspected and installed by a qualified professional.

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Some oils, fluids, paints, aerosols, batteries, and chemical products may be restricted in certain locations or require special shipping methods. Availability and delivery options may depend on the product, destination, and carrier regulations. Any applicable restrictions will be handled during order processing.

How can I contact WrenchVanta?

You can email us at nuaialmvauaoama@gmail.com or call +1 (936) 260-5549. Please include your order number when contacting us about an existing purchase so we can assist you more efficiently.