25700378 Primary Cover Gasket for Harley-Davidson
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The 25700378 Primary Cover Gasket is a high-quality OEM-compatible sealing solution designed for Harley-Davidson Touring and Trike models equipped with Milwaukee-Eight and late Twin Cam drivetrains. This gasket provides a precise sealing surface between the primary cover and engine case, preventing oil leakage while ensuring stable primary chaincase lubrication and pressure performance.
Manufactured by Osaka Marine Industrial Co., Ltd., using premium oil-resistant composite materials, this gasket is engineered for durability under high heat, vibration, and continuous riding conditions.
Ideal for primary system servicing, clutch maintenance, and complete engine rebuild applications.
✔ OEM-Compatible Replacement Gasket
✔ Prevents Primary Oil Leakage
✔ Maintains Chaincase Lubrication Stability
✔ Heat & Vibration Resistant Composite Material
✔ Designed for Touring & Trike Models
⚙️ Product Specifications:
Item Number: 25700378
Product Name: Primary Cover Gasket
Application: Primary Drive System Sealing
Material: Oil-resistant composite fiber/elastomer blend
????️ Compatible Harley-Davidson Models:
Electra Glide Ultra Classic (FLHTCU) 2017–2019
Freewheeler (FLRT) 2017–2022
Road Glide (FLTRX / FLTRXS / FLTRU) 2018–2022
Product Direct Links: https://www.osakamarine.com/buy/main_products.php?pid=4760
???? Supplied by OSAKA MARINE INDUSTRIAL CO., LTD
Reliable global supplier of aftermarket motorcycle & marine engine parts.
???? Contact Us for Wholesale Pricing:
Email: [email protected]
WhatsApp: +886-984252201
Website: www.osakamarine.com
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+886-984252201 
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