Sierra 18-57824 Marine Oil Filter – MasterCraft & Ilmor GM LS V8 Remote Mount

Sierra 18-57824 Marine Oil Filter

Part Number: 18-57824  |  SKU: 47-57824
Brand: Sierra
Product Type: Spin-On Marine Engine Oil Filter
System: Engine Lubrication – Remote-Mount Oil Filter Configuration
UPC: 808282342289

Overview

The Sierra 18-57824 is a specialized marine engine oil filter engineered specifically for MasterCraft and Ilmor GM LS-series V8 small-block engines equipped with a remote-mounted oil filter system. It is Sierra’s direct replacement for the Ilmor OEM filter MV8V1021 and is also cross-referenced as Mallory 9-57824. Built for demanding marine inboard service, it features a heavy-wall steel canister, corrosion-resistant epoxy coating, and high-efficiency filtration media designed to meet or exceed OEM filtration requirements.

Specifications

• Sierra Part Number: 18-57824
• SKU: 47-57824
• Filter Style: Spin-on, remote-mount configuration
• Canister: Heavy-wall epoxy-coated steel
• Weight: Approx. 227 g (0.5 lb)
• System: Engine lubrication – remote-mount
• UPC: 808282342289

Compatible Applications

• MasterCraft V8 GM LS-series small-block marine engines with remote-mounted oil filter systems
• Ilmor V8 GM LS-series small-block marine engines with remote-mounted oil filter systems

Fitment Notice: This filter is specifically for the remote-mount filtration configuration used on MasterCraft and Ilmor LS V8 applications. Other GM LS-based marine engines may use a different filter or mounting arrangement. Always confirm the existing filter number, engine model, and serial number before ordering.

OEM & Cross-Reference Numbers

• Sierra: 18-57824
• Ilmor OEM: MV8V1021
• MasterCraft Reference: 4MV8V1021
• Mallory: 9-57824
• SKU: 47-57824

Service Interval

Replace at every engine oil change, following the interval specified by MasterCraft or Ilmor for your engine. Consistent filter replacement removes contaminants from the lubrication system and helps maintain proper oil circulation and engine protection.

Installation

1. Shut down the engine and allow it to cool per the manufacturer’s service procedure.
2. Remove the old filter from the remote-mount housing and inspect the mounting surface — confirm the old gasket did not remain attached.
3. Clean the sealing surface thoroughly.
4. Lightly coat the new filter gasket with clean engine oil.
5. Install by hand and tighten per the engine manufacturer’s specification.
6. After starting the engine, carefully inspect the remote filter housing and all hose connections for leaks.
7. Recheck oil level after shutdown.

Related Filters

• Sierra 18-7824-2 – Marine Oil Filter (GM MerCruiser, Volvo Penta, OMC, Crusader & Indmar)
• Sierra 78761 – Oil Filter (GM/Chevy Long)
• Sierra 78242 – Oil Filter (GM/Chev Short)

Parts Desk Insights

Best Use Case: This is a purpose-built filter for MasterCraft and Ilmor LS V8 inboard engines with remote-mount oil filter systems — it is not interchangeable with the common Sierra 18-7824 used on standard GM marine applications. If your boat has a MasterCraft or Ilmor LS V8 with a remote-mount filter setup, this is the correct filter.

Common Questions: Customers occasionally confuse the 18-57824 with the standard 18-7824 GM marine filter. The key difference is the remote-mount configuration. Matching the Ilmor number MV8V1021, the MasterCraft reference 4MV8V1021, or the existing Sierra 18-57824 on your engine is the most reliable way to confirm you have the right filter. If you’re unsure, contact us with your engine make, model, and serial number.