SIERRA GM V8 Thunderbolt IV/V Rotor and Trigger Wheel – 18-5431

Description

SIERRA GM V8 Thunderbolt IV/V Rotor and Trigger Wheel – 18-5431

The SIERRA 18-5431 combines the distributor rotor and trigger wheel required by compatible GM V8 MerCruiser Thunderbolt IV/V ignition systems.

• Integrated rotor and trigger-wheel assembly for the specified electronic distributor system
• Designed for GM V8 Thunderbolt IV and Thunderbolt V marine ignition
• Used on selected MerCruiser 5.0L, 5.7L and 7.4L V8 applications
• Verify the OEM part number and physical configuration before installation.
• Replaces selected MerCruiser 13524-series, 19405A3 and 90576A2 rotor/trigger-wheel references

Specifications

• Ignition System: Thunderbolt IV / Thunderbolt V
• Engine Configuration: GM V8
• Common Engine Sizes: 5.0L, 5.7L, 7.4L