Gasket, Cover – Fits Yamaha 225-250HP V6 4-Stroke (Replaces 6P2-1131B-00-00)

$15.69 $25.00

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Gasket, Cover – Fits Yamaha 225-250HP V6 4-Stroke (Replaces 6P2-1131B-00-00) is backordered and will ship as soon as it is back in stock.

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You may return most new, unopened items within 7 days of delivery for a full refund. We'll also pay the return shipping costs if the return is a result of our error (you received an incorrect or defective item, etc.).

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Delivery and Shipping

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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 high-quality Gasket, Cover is engineered for a precise fit on Yamaha 225-250HP V6 4-Stroke engines, including the F225 and F250 series. It creates a reliable seal, preventing leaks and ensuring optimal engine performance.

It serves as a direct interchange for Yamaha OEM part number 6P2-1131B-00-00.

Installation: Direct replacement for a hassle-free fit.
Material: Manufactured to meet or exceed OEM material specifications for durability.
Purpose: Seals the engine cover to prevent oil leaks and protect internal components.

Part Number Matrix

Use this matrix to confirm equivalent references across OEM and aftermarket.

Brand	Part Number
Yamaha	6P2-1131B-00-00

Engine & Model Compatibility

Confirm your engine model/year in the table below.

This part is designed for a range of Yamaha V6 four-stroke outboard motors.

Brand	Model	Rated HP	Stroke	OEM Part No.	Notes
Yamaha	F200	200	4-Stroke	6P2-1131B-00-00	V6 Engine
Yamaha	FL200	200	4-Stroke	6P2-1131B-00-00	V6 Engine
Yamaha	F225	225	4-Stroke	6P2-1131B-00-00	V6 Engine
Yamaha	FL225	225	4-Stroke	6P2-1131B-00-00	V6 Engine
Yamaha	F250	250	4-Stroke	6P2-1131B-00-00	V6 Engine
Yamaha	FL250	250	4-Stroke	6P2-1131B-00-00	V6 Engine

Technical Specs

Product Type: Cover Gasket
Installation: Direct replacement
Material: OEM specification
Dimensions: 33.0" L x 6.6" W x 0.1" H
Weight: 11 ounces (0.31 kg)
OEM Part Number: 6P2-1131B-00-00

What’s in the Box

1 x Gasket, Cover (6P2-1131B-00-00)

Installation Notes

Ensure the engine is off and completely cool before starting.
Disconnect the battery as a safety precaution.
Remove the engine cover and any other components blocking access to the gasket area.
Carefully remove the old cover gasket. Use a plastic scraper to gently remove any stuck-on residue.
Thoroughly clean both mating surfaces with a suitable degreaser to ensure they are free of oil, debris, and old gasket material.
Align the new gasket correctly on the surface, ensuring all bolt holes line up perfectly.
Reinstall the cover, tightening the bolts in the sequence and to the torque values specified in your engine's service manual.
Reconnect the battery, start the engine, and carefully inspect for any leaks around the newly sealed area.

Troubleshooting & FAQ

How do I know if my cover gasket needs replacing?

Common signs of a failing cover gasket include visible oil leaks around the engine cover, a smell of burning oil, or the gasket material appearing hardened, cracked, or brittle upon inspection.

Is any sealant required with this gasket?

This gasket is typically designed for a dry installation. However, always consult your specific engine's service manual, as some applications may recommend a thin layer of a specific sealant.

What is the difference between this gasket and the OEM version?

Our aftermarket gasket is designed to meet or exceed original equipment manufacturer (OEM) specifications for fit, form, and function. It is made from comparable high-quality materials to ensure a reliable, long-lasting seal at a competitive price.

What happens if I install the gasket incorrectly?

Improper installation can lead to an inadequate seal, resulting in oil leaks that can damage other engine components or lead to engine failure. It's critical to ensure surfaces are clean and bolts are torqued to spec.

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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