Sierra 18-2399 Retaining Spring - Replaces 324369 for V-4 & V-6 Outboard Gearcase

The Sierra 18-2399 Retaining Spring is a small precision-machined spring used in the gearcase of V-4 & V-6 outboard engines. It is designed to hold internal gearcase components securely in place, and it is built to meet or exceed the quality of the original equipment part it replaces. This retaining spring is sold as a package of 2, so buyers rebuilding or servicing a gearcase get both springs needed for the job in a single purchase.

Because retaining springs are precision-fit components, using the correct part number matters for proper seating and long-term reliability inside the gearcase. The Sierra 18-2399 is manufactured with a machined finish for a consistent, accurate fit, and it directly replaces OEM part number 324369 on applicable V-4 & V-6 outboard engines.

Specifications

• Brand: Sierra
• Manufacturer Part Number: 18-2399
• Product Type: Retaining Spring
• Fitment: V-4 & V-6 outboard engines
• Package Quantity: 2 (priced per package)
• Weight: 0.01 pounds
• Product Dimensions: 0.39 x 0.39 x 0.39 inches
• Finish: Machined
• UPC: 808282243616
• OEM Cross-Reference: 324369

Fitment

• V-4 & V-6 outboard engines

Replaces (OEM)

• 324369

Frequently Asked Questions

What engines does the Sierra 18-2399 retaining spring fit? The Sierra 18-2399 is designed for V-4 & V-6 outboard engines and is not the same part used on 2 & 3 cylinder engines.

What OEM part number does the 18-2399 replace? It replaces OEM part number 324369, which is the original retaining spring used in the gearcase of V-4 & V-6 outboard engines.

How many springs come in one package of part number 18-2399? Two retaining springs are included, since the Sierra 18-2399 is priced and sold per package of 2.

What is the Sierra 18-2399 retaining spring made from or finished with? The 18-2399 has a machined finish, giving it a precise, consistent fit inside the gearcase.

How much does the Sierra 18-2399 weigh? This retaining spring weighs 0.01 pounds.

What are the dimensions of the Sierra 18-2399 retaining spring? The part measures 0.39 x 0.39 x 0.39 inches, reflecting its small, compact size as a gearcase retaining spring.

Is the Sierra 18-2399 an aftermarket part or genuine OEM? The 18-2399 is a Sierra-manufactured replacement part built to meet or exceed the quality of the original equipment retaining spring it replaces, rather than a genuine OEM-branded part.

Will the 18-2399 work on a 2 or 3 cylinder outboard gearcase? No, the Sierra 18-2399 is intended for V-4 & V-6 outboard engines; a different Sierra retaining spring is used for 2 & 3 cylinder applications.

What is included when I order the 18-2399? Ordering the Sierra 18-2399 gets you a package of 2 retaining springs sized for V-4 & V-6 outboard gearcases.

Is the UPC 808282243616 associated with this retaining spring? Yes, UPC 808282243616 corresponds to the Sierra 18-2399 retaining spring.

Does the 18-2399 require any modification to install? The Sierra 18-2399 is a direct-fit retaining spring for V-4 & V-6 outboard gearcases and replaces OEM part 324369 without modification.