Welcome Offer : Use Code WELCOME5 for 5% OFF!
Free Shipping on Most USA Orders
Welcome Offer : Use Code WELCOME5 for 5% OFF!
Free Shipping on Most USA Orders
Welcome Offer : Use Code WELCOME5 for 5% OFF!
Free Shipping on Most USA Orders
Welcome Offer : Use Code WELCOME5 for 5% OFF!
Free Shipping on Most USA Orders
Welcome Offer : Use Code WELCOME5 for 5% OFF!
Free Shipping on Most USA Orders
Welcome Offer : Use Code WELCOME5 for 5% OFF!
Free Shipping on Most USA Orders
Welcome Offer : Use Code WELCOME5 for 5% OFF!
Free Shipping on Most USA Orders
Welcome Offer : Use Code WELCOME5 for 5% OFF!
Free Shipping on Most USA Orders
Welcome Offer : Use Code WELCOME5 for 5% OFF!
Free Shipping on Most USA Orders
Welcome Offer : Use Code WELCOME5 for 5% OFF!
Free Shipping on Most USA Orders
⚠️ California Proposition 65 Warning : Some products sold on this website may expose you to chemicals known to the State of California to cause cancer, birth defects, or other reproductive harm.
For more information, visit www.P65Warnings.ca.gov.
The Thunderbolt kit seems solid for my Mercruiser 5.7, but I noticed it didn't have one of the screws I needed for installation. I had to run to the hardware store. Otherwise, it works well and my engine is running like new!
E
Emily Chen
Excellent quality parts
I was impressed with the quality of the Thunderbolt distributor cap and rotor kit. It fit my Mercruiser 5.0L perfectly, and the gasket sealed well. It’s great to have reliable parts that boost performance. Would buy again!
L
Liam Anderson
Great fit for my Mercruiser
I bought this Thunderbolt distributor cap and trigger wheel rotor kit for my Mercruiser 5.0, and it fit perfectly. The gasket and screws included made installation a breeze. My motor runs smoother now, and I can really feel the difference in power!
J
Jamal Williams
Arrived damaged, needed replacement
Unfortunately, the Thunderbolt kit arrived with a cracked cap. I had to contact customer service for a replacement. The new one works fine, but the shipping issue was a bit disappointing. My Mercruiser 5.7 still runs well now, though!
R
Raj Patel
Installation was tricky
I’m not the most mechanical person, so putting this Thunderbolt kit on my Mercruiser 7.4 took longer than expected. The instructions could use some clarity. Once it was installed, though, it improved my engine performance significantly.
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FAQs
Have a question ? We are here to help.
Is the shipping free?
Yes, we offer free standard shipping on all orders within the United States.
When will I receive my item?
Domestic orders typically arrive within 3-5 business days. Delivery times are estimated and may vary depending on your location, weather conditions, or other unforeseen factors.
Can I change or return my item?
We hope you love your purchase, but if you need to make a change or return your item, we’ve got you covered! You can initiate a return or exchange within 30 days of receiving your order. Please ensure the product is in its original condition and packaging. For more information on our return policy, please visit our Returns & Exchanges page.