United Ignition Wire GMESTV8 Distributors Electronic spark timing EST style replacement ignition kit for GM small and big block marine engine applications. Fits GM V8 5.0, 5.7, 7.4, and 8.2-liter marine engines Kit includes Billet aluminum EST distributor assembly, distributor mounting gasket, ignition coil, sparkplug wires, wiring harnesses, and instructions for installation It is ideal for upgrading from point-style ignition systems or for replacing obsolete distributors Original equipment marine GM Delco ignition module installed Electronic spark timing features no springs or weights Marine ignition module curve 8mm United Ignition Wire plug wires have 90-degree boots on both ends SAE J1171 certified for use in marine applications Replaces Crusader 22752K Replaces Marine Power 481111 Normalized SKU: GMESTV8

Crusader RA107039D Distributors Original equipment Crusader EST V8 electronic distributor Used on both carbureted and EFI Crusader GM small and big block marine engines SAE J1171 certified ignition protected and use in marine applications Replacement distributor cap RA108006, rotor R103008 and cap & rotor kit RP173081 Replacement ignition module R116014 and pick-up coil R105003 Used along with ignition coil R117005 Replaces Crusader 7243740 & RA107039E Replaces Indmar 55-6024 Replaces Mercury/Mercruiser 805222A1 Replaces OMC/Johnson/Evinrude 3857400 Replaces Pleasurecraft Marine RA107039D Replaces Volvo Penta 3857400 Normalized SKU: RA107039D

Sierra 18-5497-1 DistributorsDesigned for 12 Volt Negative ground systems, the Sierra YLM Series Marine distributors replace original equipment marine distributors with modern, high performance technology. This complete, self-contained ignition system combines the triggering device and amplifier into a single unit that sits inside the distributor housing. A self-contained module/pickup assembly has no moving parts to wear out. Sierra’s time tested reliability you need in extreme marine conditions. A simple wiring hook up allows this system to fit a wide variety of marine applications. This ignition system drives both original equipment and high performance coils. Improved performance and combustion efficiency Improved spark plug life Accurate spark timing Reduced maintenance Easy installation OEM Interchange:MERCURY MARINE: YLM579AVIgnition: DistributorFits Chrysler V8 273, 318 (67 & UP) 340, 360 CID "LA" Engines (Conventional Rotation).Sierra Electronic Distributor #18-5497-1Normalized SKU: 1854971UPC Code: 808282259389

United Ignition Wire MD-HVS6 Distributors Complete billet aluminum replacement HVS distributor assembly with cap and rotor for GM 4.3-liter marine engines using the high voltage switch ignition system. Replaces United Marine 9363M Normalized SKU: MDHVS6

United Ignition Wire MD-EST8 Distributors Complete billet aluminum replacement EST distributor with cap and rotor for GM V8 engines using throttle body or multi-port fuel injection equipped with Delco EST ignition. Replacement billet aluminum V8 EST electronic distributor Includes cap, rotor, EFI ignition module, and pick-up coil Fits 5.0L, 5.7L, 7.4L and 8.2L engines SAE J1171 approved ignition protection Replaces Crusader RA107039D Replaces Indmar 556024 Replaces OMC 38574000 Replaces Volvo Penta 3857449 Replaces Mercury 805222A1 Replaces PCM ra107039D Replaces Sierra 18-5484-1 Replaces United Marine 9366-3M Normalized SKU: MDEST8

Pertronix D209800 Distributors Pertronix's billet marine distributor (#D209800) delivers precision ignition timing for reverse-rotation Chevy marine engines. Constructed from aerospace-grade billet aluminum, this distributor resists corrosion and vibration while maintaining accurate spark delivery under demanding marine conditions. The reverse-rotation design ensures proper firing sequence for inboard installations, supporting reliable cold starts and consistent performance across throttle ranges. Built for serious marine mechanics and engine builders seeking OEM-quality ignition control. Non-vented distributor cap with stainless steel fasteners keeps the distributor cap firmly in place Triple screen spark arrestor offers added protection Marine-approved distributors are designed to meet or exceed SAE J1171 standards Normalized SKU: D209800UPC Code: 694342533243

Recmar REC817377 Distributors Fits 3.0L GM 4-stroke engines (1990–2019) with 3 liters, 4 cylinders, and 181 cubic inch displacement (CID). Also compatible with 3.0L MPI EC 4-stroke engines and 3.0L TKS PLUS 4-stroke engines, each featuring 3 liters and 4 cylinders. Additionally fits 3.0LX GM 4-stroke engines (1990–1998) with 3 liters, 4 cylinders, and 181 CID. Constructed with a durable aluminum housing for enhanced strength and corrosion resistance Engineered as a direct-fit replacement for late-model GM EST distributors Complies with or surpasses SAE J1171 marine ignition standards Features a steel gear compatible with both flat tappet and hydraulic roller camshafts Delivers dependable ignition performance with a high signal strength trigger system Ball bearing and bushing assembly ensures superior timing stability and extended service life 4-cylinder Delco EST distributorReplaces Mercruiser 300-8M6005801, 817377, and 817377TReplaces Marine Power 480133 This product replaces: 817377, 817377T, 8M6005801 Normalized SKU: REC817377

Recmar REC805185A3 DistributorsV6 Distributor This product replaces:805185A15, 805185A26, 805185A27, 805185A3, 805185A36, 805185A37, 805185A43, 805185A45, 805185A5, 862057A4, 90747A15, 90747A26, 90747A28, 90747A8Normalized SKU: REC805185A3

Recmar REC40005334 Distributors Complete replacement HVS distributor assembly with cap and rotor for GM 4.3L marine engines using the high voltage switch ignition system. Flat cap V-6 HVS distributor Replaces Volvo part numbers 3861988 and 40005334 Replaces Mercruiser part numbers 88751A02, 888751A02,  and 888751A03 This product replaces: 88751A02, 888751A02, 888751A03, 888751A1 / 3861988, 40005334 Normalized SKU: REC40005334

MSD 83663 Distributors GM late-model performance enthusiasts will be happy to see this Pro-Billet Distributor. The distributor, PN 83663, is a drop-in replacement for GM V8s using the small cap distributor with a dual connector coil found in cars from 1987-1993 and trucks from 1987-1995. The entire housing is CNC-machined to exact tolerances for incredible strength (not to mention cool looks). For improved lubrication, there is an extra oil tract machined into the bottom of the housing that delivers oil directly to the cam and distributor gears. Inside, a polished steel shaft receives guidance from a sealed ball bearing, and an extra-long sintered bushing adds stability. This 0.500" shaft also receives a QPQ coating for increased friction reduction and corrosion resistance. A factory-style ignition module is supplied with the distributor, so your factory wiring will plug directly in. Triggering this module is the responsibility of a high-output magnetic pick-up. Topping it all off is a heavy-duty rotor and a red MSD cap with brass terminals to ensure full spark delivery. For late-model engine swaps or bolt-on strength, this distributor is the answer. Features: Drop-in billet replacement for GM distributors with the small cap and external coil Factory-style ignition module accepts factory wiring CNC-machined billet aluminum housing and billet aluminum base Magnetic pickup and precision reluctor create stable trigger signals throughout the rpm range Oversized steel shaft is QPQ coated and guided by a sealed ball bearing and an extra-long sintered bushing Special oil tract improves lubrication to the distributor and cam gear O-ring seals can be added to modified blocks to improve oil pressure control Supplied with a late-model distributor cap and rotor Legal to install in all 50 states Marine UL Certified Normalized SKU: 83663UPC Code: 085132836635

MSD 83607 Distributors MSD's Ready-to-Run Marine Distributors are the perfect upgrade for boats that are relying on worn-out breaker points or weak ignition systems. Built off our tried and true billet marine distributors, the 6061-T6 aluminum housing is now hard anodized with a sleek black finish for great looks. This module produces a stout inductive spark that will improve combustion of the fuel mixture for better drivability.  Beneath the durable bolt-down, injection-molded cap, a maintenance-free magnetic pickup produces accurate trigger signals while an oversized shaft is guided by a sealed ball bearing. An easy-to-adjust mechanical advance allows you to custom-tailor a timing curve to match your application. The Ready-to-Run distributors are a breeze to install. Simply drop it into the engine and connect three wires, and you're ready-to-run across the lake! Supplied with a cap, rotor, gear, and weathertight wiring harness. Features: Black anodized for great looks and corrosion resistance Only three wires to connect for a simple installation High output ignition module produces quick starts, smooth idle, and improved mid-range performance Accurate and maintenance-free magnetic pick-up never needs adjustment Easily adjust the mechanical advance with the supplied springs and stop bushings to fit your boat’s needs Now includes built-in rev limiter Normalized SKU: 83607UPC Code: 085132836079

United Ignition Wire MD-RTRC8 Distributors Replaces United Ignition Wire MD-93606 Normalized SKU: MDRTRC8

Recmar REC805222A1 DistributorsThis product replaces:RA107039E / 805222A1, 8M6001253 / RA107039E / 3857449, 3862014Normalized SKU: REC805222A1UPC Code: 8435422128827

Pertronix D500700 DistributorsPertronix Module Pertronix Billet Distributor #D500700Normalized SKU: D500700