YAMAHA OEM XTO 425 450 XF450 XF425 V8 5.6L Outboard 05W30 4M Full Synthetic Oil Change Kit Engine Drain Gasket Lower Unit Gear Case HD Lube w/Drain Fill Gaskets Maintenance Kit N26-13440-02-00

Maximize performance and protection on your Yamaha XTO 425 / XF425 / 450 (5.6L V8) 4-stroke outboard (2018+) with this premium full synthetic maintenance kit. Engineered for these extreme offshore V8 engines, it features Yamalube 4M Full Synthetic 5W-30 FC-W oil—Yamaha's top-tier marine formula—for superior lubricity, reduced friction (potentially improving fuel economy), exceptional cold-start flow, all-climate protection, and resistance to corrosion/fuel dilution in harsh marine environments.

This all-in-one kit handles complete engine oil changes, lower unit HD gear lube services, and drain/fill gasket replacements using genuine Yamaha OEM parts. Ideal for 100-hour/annual maintenance or high-demand use, it helps ensure peak power, reliability, and longevity.

Kit Includes (Genuine/OEM Where Specified):

• 9 Quarts Yamalube 4M FC-W 5W-30 Full Synthetic Outboard Engine Oil — NMMA FC-W certified full synthetic with enhanced marine additives for lower friction, better fuel economy potential, superior cold-start protection, and unmatched corrosion/wear resistance.
• 1 Genuine Yamaha Oil Filter (N26-13440-02-00 or supersession) — OEM precision filtration for clean oil and extended engine life.
• 1 Genuine Yamaha Engine Oil Drain Gasket — Leak-proof seal for reliable draining.
• 2 Quarts Yamalube HD SAE 90 Lower Unit Gear Lube — Heavy-duty protection for gears, bearings, and water resistance in demanding offshore conditions.
• 3 O-Rings / Lower Unit Drain/Fill Gaskets — Durable seals to prevent leaks after service.
• 1 PWCParts Gear Lube Quart Pump — Supports clean, efficient filling (compatible with in-water changes on XTO models).
• 1 PWCParts Oil Change Reminder Decal — Easy tracking for service intervals.
• 1 PWCParts Disposable Funnel — Spill-free oil addition for convenience.

Applications: Fits ALL Yamaha 2018 and newer XTO 425 / XF425 / 450 / F450 5.6L V8 4-stroke outboards (including XF425, related variants; also compatible with XTO 450 where specs align). (Note: Confirm your exact model, serial number, and year before purchase. Not for earlier non-XTO models or different displacements.)

Why Choose This Kit?

• Delivers 100% genuine Yamaha OEM parts (oil, filter, gaskets) with full synthetic 5W-30 advantages for high-performance V8s.
• Comprehensive bundle saves time/money vs. separate purchases.
• HD gear lube upgrade provides extra durability for heavy offshore loads.
• Includes user-friendly tools for a mess-free, professional-grade DIY service (leverages Yamaha's in-water gear change convenience).
• Promotes optimal power, efficiency, cold-weather starts, and long-term engine health.

Important Notes: Engine oil capacity is approximately 7.8L / 8.24 US quarts (with filter change)—9 quarts ensure a full refill with reserve (fill gradually, run engine, and check level). Lower unit capacity is around 1.95–2.06 quarts—2 quarts HD cover complete service. Always consult your Yamaha owner's manual for precise procedures, level checks (engine warm/level), capacities, and intervals. Professional service recommended for V8 models if unsure. Verify fitment or contact us with questions prior to ordering.

Order today to keep your Yamaha XTO V8 running at peak offshore performance with full synthetic protection!