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MerCruiser Thunderbolt I - $5 (Stevens Point)
condition:
fair
make / manufacturer:
MerCruiser Thunderbolt
model name / number:
V-HEI IGNITION COIL
QR Code Link to This Post
Price: $5
Location: [Your city / area] – Will ship anywhere
Description:
Used (cosmetically scuffed but 100% functional) ignition coil for MerCruiser Thunderbolt IV and Thunderbolt V HEI systems (NOT points ignition).
Direct replacement for:
392-805570A1 • 392-805570A2 • 392-7803A4 • 18-5438 • Sierra 18-5438 etc.
Pulled from a strong-running 5.7L boat
Tested on the engine and again on the bench – throws a big, consistent blue spark
No cracks, no corrosion inside the tower, terminals clean
Ready to bolt on and fire right up
Price: $5 (that’s it) + whatever actual shipping costs.
Usually $8–$11 USPS First Class or Priority Mail in a small box (I’ll give you the exact amount once I have your zip code). PayPal Goods & Services, Venmo, Zelle, or cash if local.
No trades, no holds without payment.
First one who pays gets it – these go fast at five bucks.
Text or message [your phone number / email] with your zip code and I’ll tell you the total landed price.
If the ad is still up, it’s still available.
Thanks!