Distributor cap for Thunderbolt V8 EFI, MD805759Q01

• Distributor cap for Thunderbolt V8 EFI, MD805759Q01

Distributor cap for Thunderbolt V8 EFI, MD805759Q01 is a distributor cap for marinized GM V8 engines with Thunderbolt IV or Thunderbolt V HEI ignition system.

It is intended for MerCruiser V8s with Thunderbolt electronic ignition and is used without a breaker.

Suitable for the following models:

• MerCruiser GM V8 with Thunderbolt IV HEI
• MerCruiser GM V8 with Thunderbolt V HEI
• V8 EFI and MPI applications with suitable distributor design

Technical information:

• Thunderbolt distributor cap for V8
• for electronic HEI ignition systems
• cap only without rotor

Replaces the following reference numbers:

• MerCruiser 16457A4
• MerCruiser 43557
• MerCruiser 43557A1
• MerCruiser 805759A1
• MerCruiser 805759A2
• MerCruiser 805759A5
• MerCruiser 805759Q01
• MerCruiser 805759Q3
• MerCruiser 805759T1
• MerCruiser 805759T2
• MerCruiser 805759T3
• MerCruiser 90746A1
• Sierra 18-5385

FAQ for this article:

For which ignition system is this cap designed?
For MerCruiser V8 with Thunderbolt IV and V HEI ignition.

What must be checked before selection?
The V8 version, Thunderbolt system and the existing reference number must be checked.