Yanmar Cylinder Head Assembly 728170-11700 - Marine Diesel Engine
Free returns on all eligible orders
You have 30 days to request a return. All sale items are final sale.
Genuine Yanmar Cylinder Head Assembly - Professional Marine Engine Component
OEM complete cylinder head assembly designed for Yanmar marine diesel engines. Precision-engineered casting that houses valves, valve seats, valve guides, and combustion chambers, providing the critical sealing surface for optimal compression and engine performance.
Key Features:
- Genuine Yanmar OEM part (728170-11700)
- Complete cylinder head assembly ready for installation
- Precision-machined combustion chambers and valve seats
- Marine-grade cast iron or aluminum construction
- Includes valve train components as specified
- Direct OEM replacement for reliable performance
- Critical component for engine compression and power
Applications:
Compatible with specific Yanmar marine diesel engine models. Essential engine component that seals the combustion chamber, houses the valve train, and provides coolant and oil passages for proper engine operation.
Performance Benefits:
Factory-assembled cylinder head ensures proper valve seating, optimal compression ratios, and correct combustion chamber geometry. Critical for maintaining engine power, fuel efficiency, and emissions compliance.
Installation Note:
Verify compatibility with your specific engine model. Follow Yanmar torque specifications and head bolt tightening sequence. Use new head gasket and head bolts during installation. Professional installation recommended.
Quality Assurance:
Backed by Yanmar's engineering excellence and reputation for reliable marine propulsion systems. Professional-grade component for commercial and recreational vessels requiring major engine repair or rebuild.
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
Returns & Satisfaction Guarantee
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.
We are serious about product integrity — and equally serious about taking care of our customers. If there is ever a product issue, contact us immediately so we can make it right.
For return authorization, please contact our support team before shipping anything back.