Thunderbolt Ignition Sensor for MerCruiser V6 V8 4.3-7.4L 87-861780A2
Thunderbolt Ignition Sensor for MerCruiser V6 V8 4.3-7.4L 87-861780A2
Product Overview
Thunderbolt ignition sensor for MerCruiser V6 and V8 sterndrive engines. Fits 4.3L, 5.5L, 5.7L, and 7.4L models with Thunderbolt ignition systems. Critical component for proper ignition timing and engine performance.
OEM Part Numbers
- Mercruiser: 87-861780A2, 892150Q02
Compatible Engines
- Mercruiser 4.3L V6
- Mercruiser 5.5L, 5.7L V8
- Mercruiser 7.4L V8
Package Includes
- 1 x Ignition Sensor
Before You Buy
Please verify your engine model and ignition system type. Contact us for fitment confirmation.
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Boat Owners' Review
Before You Buy
Frequently Asked Questions
What is your refund policy?
We offer a 14-day hassle-free return on all products. Items must be unused and in original packaging. Every XRmarine part is also covered by our 1-year warranty against manufacturing defects. If something is not right, email us at info@xrmarineparts.com — replacement or full refund, your choice.
See our full Refund Policy for complete details.
How does shipping work?
Free international shipping on every order — no minimums. We ship from our global warehouse network (US, Germany, UK, Australia). Typical delivery: 10-20 business days. Tracking included.
See our full Shipping Policy.
How do you keep prices fair?
We cut out the middlemen. XRmarine sources directly from quality manufacturers and sells at honest prices. Same OEM-quality parts, no dealership markup. Every order comes with free shipping, real expert support, and a 1-year warranty.
Learn more on our About Us page.
What payment methods do you accept?
We currently accept PayPal — a fast, secure way to pay online. Credit card payments (Visa, Mastercard, American Express) and Shopify Payments are being set up and will be available soon. We appreciate your patience.