Sierra Distributor 18-5313-1, Conventional Ignition for GM 305/350/454 V8 Marine Engines

The Sierra 18-5313-1 is a conventional (points-type) ignition distributor built for GM 305, 350, and 454 cubic-inch V8 marine engines. It is designed as a direct fit for these inboard/sterndrive V8 applications, delivering the ignition timing and spark distribution these engines require for reliable starting and smooth running. As a conventional distributor, it works with a traditional points-and-condenser ignition setup rather than an electronic ignition module, making it a straightforward replacement for boat owners maintaining an original-style ignition system.

This distributor is cataloged for GM 305, 350, and 454 cid V8 engine applications across two documented model ranges: 1976-82 and 1983-88. Confirm your engine displacement and model year against your boat's engine tag before ordering, since distributor fitment is specific to engine family and year range.

Specifications

• Brand: Sierra
• Manufacturer Part Number: 18-5313-1
• Product Name: Conventional Ignition Distributor
• Weight: 3.58 pounds
• UPC: 808282349752
• Engine Fitment: GM 305, 350, 454 cid V8 engines
• Application Years: 1976-82, 1983-88
• Ignition Type: Conventional (points-type)

Fitment

• 1976-82, 8-cylinder, 305/350/454 cid engine
• 1983-88, 8-cylinder, 305/350/454 cid engine

Frequently Asked Questions

What engines does the Sierra 18-5313-1 distributor fit? The Sierra 18-5313-1 is cataloged for GM 305, 350, and 454 cubic-inch V8 marine engines, covering 1976-82 and 1983-88 model year applications.

Is the 18-5313-1 a conventional or electronic ignition distributor? It is a conventional, points-type ignition distributor, designed for engines running a traditional points-and-condenser ignition setup rather than electronic ignition.

How much does the Sierra 18-5313-1 distributor weigh? The Sierra 18-5313-1 distributor weighs 3.58 pounds.

Will this distributor work on a 1980 model year GM 305 or 350 V8 marine engine? Yes, the Sierra 18-5313-1 is cataloged for the 1976-82 model range for GM 305, 350, and 454 cid V8 engines, which covers a 1980 model year application.

Does the 18-5313-1 fit a 454 cid engine as well as the 305 and 350? Yes, Sierra part number 18-5313-1 is listed for GM 305, 350, and 454 cubic-inch V8 engine applications in both the 1976-82 and 1983-88 ranges.

What is included when I order the 18-5313-1? You receive one Sierra 18-5313-1 conventional ignition distributor unit; points, cap, rotor, and condenser are not documented as included with this part number.

Is the Sierra 18-5313-1 a direct OEM replacement? The 18-5313-1 is Sierra's part number for this conventional ignition distributor application on GM 305/350/454 V8 marine engines; verify your existing distributor's application before ordering to ensure a correct match.

What is the UPC for the Sierra 18-5313-1 distributor? The UPC for the Sierra 18-5313-1 conventional ignition distributor is 808282349752.

Can I use the 18-5313-1 on a Ford marine V8 engine? No, the Sierra 18-5313-1 is cataloged specifically for GM 305, 350, and 454 cid V8 engine applications, not Ford engines.

What ignition system type does this distributor use? The 18-5313-1 uses a conventional points-and-condenser ignition system, as opposed to a breakerless electronic ignition design.