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FLASHSALE26

Outboard Engine – Fits Yamaha F250 Series (Replaces Yamaha F250XSB, F250XCB, F250TXR)

Regular price $42.50

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Delivery and Shipping

Orders are typically processed within 1–2 business days.


U.S. orders usually arrive within 6–15 days, depending on stock location and destination.


International delivery times may vary due to customs processing.


Tracking information will be provided once your order ships.

If you have any questions, feel free to email us at info@sierramarines.com, and we’ll get back to you within 20–36 hours.

Product Details

This product is a Yamaha 250 HP Four-Stroke Outboard Engine, suitable for the Yamaha F250 V6 series manufactured from 2006 to the present. It delivers robust and reliable power for various marine applications, serving as a complete replacement motor.

No verified direct cross-brand replacement information was found in available sources for this engine.

  • Available in 25", 30", and 35" shaft lengths to fit different transom heights.
  • Offered with Digital Electronic Control (DEC) for precise, smooth throttle and shift actuation.
  • Engineered to run efficiently on 87 octane gasoline with a maximum ethanol blend of 10%.

Engine & Model Compatibility

Confirm your engine model/year in the table below.

Brand Model Rated HP Stroke Years OEM Part No. Notes
Yamaha F250XSB 250 4-Stroke 2021–Present F250XSB Digital Electronic Controls, 25" Shaft
Yamaha F250XCB 250 4-Stroke 2006–Present F250XCB Digital Electronic Controls, 25" Shaft
Yamaha F250TXR 250 4-Stroke 2006–Present F250TXR 25" Shaft
Yamaha F250 250 4-Stroke 2006–Present Various Available in multiple shaft lengths
Yamaha VF250 (V MAX SHO) 250 4-Stroke 2006–Present VF250XA, VF250LA Sport High Output version

Technical Specs

Product Type
V6 Four-Stroke Outboard Engine
Displacement
4.2L (256 cubic inches)
Bore x Stroke
96 x 96mm (3.78 x 3.78 in)
Full Throttle RPM Range
5000–6000 rpm
Alternator Output
50–70 Amp
Compression Ratio
10.3:1
Fuel Induction System
Electronic Fuel Injection (EFI)
Weight
255–288 kg (562–635 lbs) depending on shaft length and controls
Recommended Fuel
87 Octane (minimum)
Engine Oil Capacity
6.3L/6.0L with filter
Cooling System
Thermostatic Control
Ethanol Blend Limit
10% Maximum
Gear Ratio
1.75:1
Gear Shift
Forward, Neutral, Reverse
Shaft Length Options
25" (X), 30" (U), 35" (F250 DEC Only)
Degree of Tilt
DES: 69°, Mechanical 70°
Degree of Trim
-3° through +16°
Warranty
3-Year Limited (Pleasure/Government), 1-Year (Commercial)

What’s in the Box

This listing describes the complete outboard motor. Ancillary components needed for installation (such as controls, propellers, and rigging kits) are typically sold separately. Please confirm all included items with the seller.

  • 1 x Yamaha 250 HP Four-Stroke Outboard Engine

Installation Notes

Professional installation by a certified marine technician is essential for safety, peak performance, and to ensure warranty validity. The following steps are a general guide and not a substitute for the official service manual.

  1. Verify the boat's transom is rated to support the engine's weight (255–288 kg) and horsepower.
  2. Use a proper lifting hoist to carefully position and mount the engine on the transom.
  3. Secure the engine with high-grade mounting bolts, torqued to the manufacturer's precise specifications.
  4. Connect all fuel lines, electrical harnesses, and control cables (throttle, shift, steering).
  5. Install the appropriate propeller for your boat's hull and intended use.
  6. Fill the engine with the specified amount and type of engine oil (approx. 6.0L-6.3L).
  7. Perform a thorough pre-launch inspection of all systems, connections, and fluid levels before starting the engine.

Troubleshooting & FAQ

How do I choose the correct shaft length for my boat?

Shaft length depends on your boat's transom height. 25" (X) and 30" (U) are common for offshore boats. Measure the vertical distance from the top of your transom to the bottom of the hull to determine the appropriate size. Consult your boat's manual for recommendations.

What is the benefit of Digital Electronic Control (DEC)?

DEC replaces traditional mechanical control cables with a digital signal, resulting in significantly smoother, quicker, and more precise throttle and shift operation. It eliminates cable binding and provides a more responsive feel at the helm.

What are common signs that my current outboard engine may need replacement?

Key indicators include a noticeable loss of power, increased fuel or oil consumption, persistent overheating, water in the oil, or loud mechanical noises like knocking or grinding from the powerhead or lower unit.

What is the recommended maintenance schedule?

Follow the service intervals outlined in the Yamaha owner's manual. A typical schedule includes an oil and filter change every 100 hours or annually, along with regular inspections of the fuel system, spark plugs, and anodes.

Can I use fuel with a higher ethanol content than 10%?

No. Using fuel with more than 10% ethanol (E10) is not recommended and can cause damage to the fuel system components, leading to poor engine performance and costly repairs. Always use fuel from a reputable source.

Is a propeller included with the engine?

Typically, propellers are sold separately to allow the owner to select the ideal pitch and diameter for their specific boat and application, which is critical for achieving optimal performance and fuel efficiency.

OEM vs. Aftermarket?

This listing is an aftermarket replacement (not OEM). Built to OEM-level specifications with comparable materials. Manufactured in an ISO 9002 facility, batch-inspected for consistency.

Shipping speed & cost

We ship worldwide quickly—typical transit 5–15 days. Standard shipping is free; expedited options appear at checkout where available.

Warranty & returns

Covered by a 1-year warranty against manufacturing defects under normal use. If issues arise, contact support with your order details. Returns are accepted within our standard window (unused & in original condition). See our policy page or reach out for instructions.

Safety & Important Info

  • Verify images/specifications vs your original part. If anything differs—even if your model appears compatible—do not purchase.
  • This is an aftermarket replacement, not an OEM component.
  • Professional installation is recommended for safety and performance.

About Sea Sierra

  • Pro-Grade Standards — We supply marine parts engineered to OEM-level tolerances and tested for real-world conditions.
  • Fast Global Fulfillment — Free standard delivery to most regions in 5–15 days.
  • Manufacturer-Direct Value — Fair pricing without compromising on materials or QC.

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