MOOSE OFFROAD 811585 Gasket & Oil Seal Kit Suzuki DR-Z400 Kawasaki KLX400 2000-2025

The Ultimate "Master" Engine Rebuild Kit

When it’s time for a total engine transformation, don't settle for incomplete sets. The MOOSE OFFROAD Complete Gasket and Oil Seal Kit, available at Moto-House MX, is the most comprehensive sealing solution for your 400cc powerplant. This kit goes beyond standard sets by combining every necessary internal gasket with a full suite of genuine OEM-style oil seals. Whether you are splitting the cases on a high-mileage Suzuki DR-Z400 or a Kawasaki KLX400, the 811585 kit provides the total confidence required for a professional-grade rebuild.

Every component in this kit is engineered for durability and an accurate, leak-free fit. Proudly made in the USA, the set includes all gaskets and oil seals necessary to rebuild the entire engine and transmission. Unlike many other "complete" kits, this master set includes the essential valve seals and the formed rubber valve cover gaskets that often cost a premium at the dealership. By choosing MOOSE OFFROAD, you get high-tech performance and unmatched reliability at a fraction of the OEM cost, ensuring your machine stays on the trail and out of the shop.

Top Features: MOOSE OFFROAD 811585 Master Kit

• Total Sealing Package: Includes all engine and transmission gaskets PLUS all necessary oil seals in one convenient SKU.
• OEM Quality Seals: Features genuine OEM-style replacement oil seals for the countershaft, shifter, and other critical engine exits.
• Includes Valve Cover Gasket: Comes with the thick, molded rubber head cover gasket—no need to purchase separately.
• Valve Seals Included: Provides the high-temperature seals needed to refresh your cylinder head and prevent oil consumption.
• Made in the USA: All gaskets are manufactured in the United States to meet the highest industry standards.
• 2025 Ready: Fully compatible with the newest 2025 Suzuki DR-Z4S and DR-Z4SM models.

Expert Pro-Tip

This is the most complete kit MOOSE OFFROAD offers for the 400cc platform. However, please note that the mechanical water pump seal is not included. We recommend pairing this master kit with a dedicated water pump rebuild kit if your cooling system is showing signs of wear or leaking from the weep hole.

Fitment List

Year Range	Vehicle Brand	Vehicle Model & Size
2025	Suzuki	DR-Z4S / DR-Z4SM
2000-2024	Suzuki	DR-Z400 / S / SM / E / K
2003-2004	Kawasaki	KLX400 / R / SR

Frequently Asked Questions

Q: Does this kit include every seal for the engine?
A: It includes all internal and external oil seals and gaskets. The only notable exception is the mechanical water pump seal, which is a specialized component usually sold in cooling-specific kits.

Q: Why is this better than buying gaskets and seals separately?
A: This kit is designed to save you money and ensure part compatibility. Buying the gaskets, valve seals, and oil seals individually can cost nearly double the price of this all-in-one kit.

Q: Are the head and base gaskets included?
A: Yes, this kit includes the head gasket, base gasket, and every other internal engine and transmission gasket required for a full teardown.

Recommended Pairings: MOOSE OFFROAD Water Pump Rebuild Kits & High-Performance 4-Stroke Engine Oil.

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