REPLACEMENTKITS.COM Valve Stem Seal Kit 4-Pack for Kawasaki FH/FR/FS/FX Engines — Viton Oil & Heat Resistant

REPLACEMENTKITS.COM Valve Stem Seal (4 pack) is a direct-fit replacement for Kawasaki engines and select John Deere mowers, made from durable Viton for long-lasting sealing performance.

If you service small engines, lawn tractors, or zero-turn mowers, this 4-pack of valve stem seals is engineered to match OEM fit and function for many Kawasaki FH, FR, FS and FX series engines and John Deere applications. Each seal replaces Kawasaki part number 92049-7001 (and older numbers 92049-7011, 92049-7009) as well as John Deere M138389. These seals are molded from Viton material to resist oil breakdown and temperature exposure common in pushrod and overhead-valve small engines.

Which engines and mower models will these valve stem seals fit?

These seals cover a wide range of Kawasaki engine codes used in residential and commercial mowers. The catalog includes many FH, FR, FS and FX series engines and a comprehensive list of John Deere lawn and ZTrak models that use equivalent parts.

• Compatible Kawasaki engine models: FH381V, FH430V, FH451V, FH480V, FH500V, FH541V, FH580V, FH601V/601D, FH641V, FH680V, FH721V, FH770D, FR651V, FR691V, FS730V, FX651V, FX691V, FX730V, FX921V.
• Common John Deere mower fits: 325, 335, 345, GT245, GX255, GX355, X320, X324, X340, X360, X465, X500, X530, X534 and many ZTrak models like 647, 657, 667, 717, 727, 737, 757, Z445, Z465, Z810A, Z820A.
• Direct replacements for Kawasaki 92049-7001 and John Deere M138389; replaces older 92049-7011 and 92049-7009.

How does Viton construction help in real-world use?

Viton is a fluoroelastomer known for resisting oil, fuel, and heat better than many standard rubbers. That makes these seals more robust against common failure modes such as hardening, cracking, or rapid wear when exposed to engine oils and high operating temperatures.

• Improved oil resistance helps reduce seepage past the valve guides during operation.
• Greater temperature tolerance maintains seal shape under engine heat cycles.
• Durable elastomer extends service intervals versus lower-grade materials.

What should I expect during installation and maintenance?

Installation is straightforward for anyone familiar with cylinder head disassembly and valve train service. Replace seals while inspecting valve guides, springs, and retainers; use the 4-pack to service one head or keep spares for the future.

• Requires basic small-engine tools and head/valve access.
• Clean valve stems and guides before fitting new seals for best sealing.
• Use one seal per valve—four seals cover four valves or provide spares.

Are these aftermarket seals a reliable alternative to OEM parts?

REPLACEMENTKITS.COM supplies aftermarket components engineered to match OEM dimensions and performance where possible. The seals are manufactured to replace the listed part numbers and are offered with a satisfaction guarantee from an American-owned company that focuses on high-quality small-engine replacement parts.

• Manufactured to match OEM part fitment and form factors.
• Backed by a 100% satisfaction guarantee from the brand.
• Sold as a 4-pack to keep spares on hand for routine maintenance.

Who is this for: This 4-pack of REPLACEMENTKITS.COM valve stem seals is designed for DIY mechanics, lawn care professionals, and fleet managers who maintain Kawasaki-powered equipment or compatible John Deere mowers and need a durable, oil-resistant replacement option. Choose these seals if you want an economical, Viton-based aftermarket part that replaces Kawasaki 92049-7001 and John Deere M138389 while keeping a spare set on hand for routine engine service.