Quicksilver 808483Q1 Distributor Cap Kit

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Part Number: 710-808483Q 1

Quicksilver 808483Q1 Distributor Cap Kit

Keep your ignition system sharp and dependable with the Quicksilver 808483Q1 Distributor Cap Kit. Designed as a genuine OEM replacement for Mercury MerCruiser engines, this kit restores clean spark distribution and helps eliminate common issues like misfires, hesitation, and rough idle.

Built for engines equipped with Thunderbolt IV and Thunderbolt V ignition systems, this cap and rotor set ensures proper timing and consistent spark delivery across all cylinders. It’s a simple but critical maintenance upgrade that helps your engine start easier, run smoother, and maintain peak performance.

Constructed with durable, marine-grade materials, the cap is designed to resist heat and moisture, while corrosion-resistant terminals help maintain strong electrical contact over time. As a direct replacement, installation is straightforward and requires no modification on compatible engines.


Common Engine & Boat Fitments

The 808483Q1 kit is widely used on MerCruiser V6 and V8 carbureted and early EFI engines, including 4.3L, 5.0L, and 5.7L platforms with Thunderbolt ignition systems.

Common applications include boats such as:

  • Sea Ray 180 Bowrider, 190 Bowrider, and 210 Sundeck
  • Bayliner 175 Bowrider, 185 Bowrider, and Capri series
  • Chaparral 1830 SS, 1930 SS, and 2130 SS
  • Four Winns Horizon 180, 190, and 200
  • Rinker Captiva 186 and 192
  • Larson LXI and SEi series

This ignition setup is also found on some Indmar-powered crossover applications, making it compatible with select models from Supra and Moomba using similar GM-based engine configurations.

Fitment can vary by engine serial number and ignition type, so confirming compatibility with part number 808483Q1 is recommended before ordering.


Key Features

  • Genuine Quicksilver OEM distributor cap and rotor kit
  • Designed for Thunderbolt IV and V ignition systems
  • Compatible with 4.3L, 5.0L, and 5.7L MerCruiser engines
  • Helps restore smooth idle and reliable starting
  • Durable construction for long-term marine use

If your engine is running rough or struggling to start, worn ignition components are often the cause. The Quicksilver 808483Q1 Distributor Cap Kit is an easy, effective way to bring your engine back to smooth, dependable operation.