For Mercruiser 454 EFI, MAG MPI, 502 EFI, MAG MPI engines with the Delco HEI ignition systems. Sierra aftermarket parts are manufactured to meet or exceed OEM requirements.
Wire Lengths:
Interchangeable with:
California Residents: 
WARNING
Cancer and Reproductive Harm -
P65Warnings.ca.gov
Sierra 18-8802-1 Premium 8 Cyl Spark Plug Wire Set For 8 cylinder GM based engines with conventional ignition systems. Key Features: Kit includes coil wire. Kevlar core for maximum durability...
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Sierra 18-8803-2 Premium 8 Cyl Spark Plug Wire Set Sierra 18-8803-2 Premium Spark Plug Wire set is for 8 cylinder engines with conventional ignition systems. Used on Mercruiser and OMC V8 GM...
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Sierra 18-8822-1 Spark Plug Wire Set Sierra replacement spark plug wire set for Delco HEI engines. Ignition Type: Delco HEI Wire Lengths: 2 Spark Plug Wires 27.5" 2 Spark Plug Wires 30.5" 2...
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Sierra 18-8806-1 Wiring Plug Set Interchangeable with: Mallory 9-28026
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Sierra 18-5281 Tune Up Kit Delco Est V8 Used on Mercruiser, Indmar and Pleasurecraft Marine engines. GM V-8 Delco EST Fits 1996-2005 Indmar Monsoon, MCX, RPT & Hammerhead...
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Sierra 18-5354 Distributor Cap - Delco V8 Ignitions Sierra 18-5354 Distributor Cap fits new GM style "module in cap" distributors with V-8 applications except MPI engines with ECM 555. Use...
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OMC Stern Drive 0503752 Spark Plug Wire Set Genuine OEM Johnson/Evinrude/OMC part. Application: 5.0L / 5.7L / 283 / 307 / GM V8 (1967 - 1994) Special Order Item.
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Sierra 18-8801-1 Premium 6 Cyl. Spark Plug Wire Set For 6 cylinder GM based engines with conventional ignition systems. Features: Kit includes coil wire. Kevlar core for maximum durability and...
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Champion RV15YC4 Copper Plus Marine Spark Plug Champion marine spark plugs are quality OEM replacements. The Champion RV15YC4 Spark Plug features a copper core electrode that provides increased...
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