This Sierra Marine Manifold Mounting Kit is engineered for Chrysler LM318, M340, and M360 marine engines equipped with log-style exhaust manifolds using stud-style fasteners.
The kit provides all necessary hardware for a secure, vibration-resistant manifold installation, ensuring proper sealing and long-term corrosion protection in marine environments.
It replaces OEM OSC 826-MK-SS and cross-references to 9-40372, offering a direct fit for Chrysler small-block marine V8 engines.
Constructed from marine-grade, corrosion-resistant materials, this hardware kit is designed to meet or exceed OEM durability standards for both freshwater and saltwater applications.
Product Features
- Manufacturer: Sierra Marine
- Application: Chrysler LM318, M340, and M360 marine engines
- Type: Exhaust manifold mounting hardware kit (stud style)
- Manifold Style: Log style
- Replaces OEM #: OSC 826-MK-SS
- Cross Reference #: 9-40372
- Manufacturer Item #: 18-8527
- Includes: Complete set of studs, washers, and mounting hardware
- Condition: 100% brand-new Sierra Marine replacement component
- Warranty: Backed by Sierra’s limited marine parts warranty
Additional Information
Note: Specifically designed for Chrysler small-block marine engines using stud-style log manifolds.
If you require matching riser gaskets, manifold gaskets, or complete riser assemblies, please email or fill out the contact form and we will help you find all compatible parts.
Shipping Information
SHIPPING: Additional shipping fees to Alaska, Hawaii, U.S. Territories, or international destinations will be calculated after checkout.
You will receive an email and a PayPal money request for the additional shipping charges at the email address provided.
(Some items are excluded from international shipping.)
Customer Support
For questions or to confirm compatibility, please email customerservice@marinepartswarehouse.com .
Please include your engine model or serial number to help confirm proper fitment before ordering.
