RPS Thunderbolt Distributor Cap & Rotor Kit for Mercruiser V8 Engines (805759Q3 / 805759T3)
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- £40.92
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Description
xRefresh the ignition heart of your Mercruiser V8
The RPS Thunderbolt Distributor Cap and Rotor Kit is designed for Mercruiser V8 engines that rely on Thunderbolt I and IV systems. This complete upgrade pairs a cap with brass terminals, a precision rotor, a gasket, and installation screws into one durable, value‑driven package. Instead of a full OEM replacement, you get OEM‑quality components at a price that makes maintenance more accessible, helping you keep your marine setup in steady, reliable condition.
Included in the kit
- Cap with brass terminals
- Rotor
- Gasket
- Screws
Key compatibility and fit
- Replaces Part#: 805759Q3, 805759T3, 18-5935
- Fits all GM-based engines with Thunderbolt ignition systems from the early 1980s and newer
- Opt for a straightforward upgrade that aligns with classic and later Thunderbolt configurations
Why this kit stands out
- OEM-quality build without the OEM price tag
- Cap features brass terminals for durable, reliable conductivity
- All essential components included for a complete replacement
Real‑world use scenarios
Whether you’re performing routine maintenance, reviving an aging ignition setup, or gearing up for a new boating season, this kit offers a cohesive upgrade path. The gasket helps shield against moisture in damp engine bays, while the robust cap and rotor support consistent spark delivery under typical marine loads. The included screws ensure a secure, precise fit during installation.
Practical notes
Think of this kit as a practical maintenance option for Thunderbolt I and IV systems. It’s designed to be a clean, straightforward swap that aligns with your Mercruiser V8, helps preserve ignition reliability, and provides a reliable baseline for ongoing service life.
FAQ
Q: What engines is this kit compatible with?
A: Fits Mercruiser V8 engines using Thunderbolt I and IV systems, including 805759Q3, 805759T3, and 18-5935.
Q: What’s included in the kit?
A: Cap with brass terminals, rotor, gasket, and screws—delivered as a complete upgrade.
Shipping & Return
xReturns Policy
You may return most new, unopened items within 30 days of delivery for a full refund. We'll also pay the return shipping costs if the return is a result of our error (you received an incorrect or defective item, etc.).
You should expect to receive your refund within four weeks of giving your package to the return shipper, however, in many cases you will receive a refund more quickly. This time period includes the transit time for us to receive your return from the shipper (5 to 10 business days), the time it takes us to process your return once we receive it (3 to 5 business days), and the time it takes your bank to process our refund request (5 to 10 business days).
If you need to return an item, simply login to your account, view the order using the "Complete Orders" link under the My Account menu and click the Return Item(s) button. We'll notify you via e-mail of your refund once we've received and processed the returned item.
Shipping
We can ship to virtually any address in the world. Note that there are restrictions on some products, and some products cannot be shipped to international destinations.
When you place an order, we will estimate shipping and delivery dates for you based on the availability of your items and the shipping options you choose. Depending on the shipping provider you choose, shipping date estimates may appear on the shipping quotes page.
Please also note that the shipping rates for many items we sell are weight-based. The weight of any such item can be found on its detail page. To reflect the policies of the shipping companies we use, all weights will be rounded up to the next full pound.
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