Mercury – 808483K2 Distributor Cap and Rotor Kit | GM Marinized V8 Engines | Delco HEI Ignition | 808483K2

Overview

When you turn the key on a well-tuned MerCruiser, you can feel it — that instant spark, that steady rumble that lets you know the ignition system is doing its job. The Mercury 808483K2 Distributor Cap and Rotor Kit keeps that spark strong and reliable, delivering the consistency your V8 depends on every time you head out on the water.

Designed specifically for marinized GM V8 engines equipped with Delco HEI ignition systems, this OEM Mercury kit restores the clean spark distribution your engine was built for. From early morning runs to long cruises, it’s made to handle heat, vibration, and moisture without breaking down or misfiring — just dependable, factory-grade ignition performance, day after day.

Key Features

• Purpose: Maintains proper spark timing and distribution in GM-based marine V8 engines for smooth starts and efficient combustion.
• Fitment: For marinized GM V8 engines with Delco HEI ignition systems commonly found in MerCruiser inboards and sterndrives.
• Construction: Cap molded from a PBT/PET composite for added strength, stiffness, and resistance to heat warpage.
• Electrical Components: Solid brass inserts provide clean conductivity, resisting corrosion and electrical pitting for long service life.
• OEM Engineering: Designed, tested, and approved by Mercury Marine for precise fit, lasting durability, and reliable ignition performance.

Engine & Boat Compatibility

• Marinized GM V8 engines with Delco HEI ignition systems
• Commonly used in MerCruiser sterndrives and inboard powerboats
• Suitable for both freshwater and saltwater applications

Performance & Practical Benefits

The 808483K2 kit delivers the crisp, even spark your engine needs for consistent performance across the RPM range. Its precision-molded housing holds tight tolerances, keeping the rotor perfectly aligned for accurate spark timing. The solid brass terminals ensure low resistance and excellent conductivity, even after long periods in damp or high-humidity environments.

You’ll notice easier starts, steadier idle, and cleaner acceleration — all signs that your ignition system is working efficiently. Whether you’re idling in the marina or pulling hard at wide-open throttle, this kit keeps your ignition system running at its best.

Why Buy OEM

With ignition components, precision and materials matter. Mercury’s OEM distributor cap and rotor kits are engineered to handle marine heat cycles, vibration, and moisture that generic automotive parts can’t. The PBT/PET blend resists deformation and cracking, while Mercury’s brass terminals outlast typical aluminum or coated contacts.

Choosing OEM means getting parts that fit perfectly, perform flawlessly, and last longer — protecting your engine investment and ensuring it fires up reliably every time you’re ready to go boating.

FAQ

Q1: Which engines does the Mercury 808483K2 fit?
A: It’s made for marinized GM V8 engines using Delco HEI ignition systems, found in many MerCruiser inboards and sterndrives.

Q2: What’s the difference between 808483K1 and 808483K2?
A: The 808483K1 fits older GM/MerCruiser V8s (1997 and earlier), while the 808483K2 is designed for later marinized GM V8 applications with Delco HEI systems.

Q3: Can I install this kit myself?
A: Yes. With basic tools and mechanical experience, most boat owners can replace the cap and rotor during routine tune-ups.

Q4: How long does this cap and rotor last?
A: With proper maintenance, Mercury’s OEM components typically last several seasons before showing wear or corrosion.

Q5: Is this part suitable for saltwater boats?
A: Absolutely. The corrosion-resistant materials are specifically engineered to handle saltwater and humid marine environments.