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Spark Plug Wire Set for Mercruiser V8 Thunderbolt Delco EST Replaces 84-816608Q61

Free shipping on orders over $29.99

$36.99

$ 19 .99 $19.99

In Stock
  • ★WORKS WITH - For Mercruiser V8 Thunderbolt, Delco EST system.
  • ★REPLACES - Mercruiser 84-816608Q61
  • ★FITS ENGINE - For all small block (5.0-5.7L) and big block (7.4)L engines with Thunderbolt ignition except for the 454 Hi Performance
  • ★QUALITY ASSURED - Direct replacement for a proper fit and easy installation, quality materials used, 100% tested before shipping.
  • ★TECH SPECS - 8mm premium quality wires with stainless steel core.



Product Description

Auto and motorcycle repair parts
1390
1390

Compatible with - Compatible with for Mercruiser V8 Thunderbolt,Delco EST systems

Substitute - For Mercruiser 84-816608Q61

Fits Engines - Fits all for small (5.0-5.7L) and large (7.4)L engines with thunderbolt ignition, except 454 High Performance


Dennis
Reviewed in the United States on August 5, 2024
They look good but they were not for my 5.7 liter engine some were to short others were too long and hanging.
Michigan
Reviewed in the United States on August 25, 2023
4 wires not long enough, cannot use, waited to long to send back.
Shiva Dayal
Reviewed in Canada on August 22, 2023
I purchased this for my small block 5.7L mercruiser. I was able to replace 6 out of the 8 wires. 2 of them are far too short. You have advertised this part falsely as it clearly does not fit on a 5.7L. Please correct this and accurately let customers know what product this will fit, 5.7L mercruiser should not be included and I imagine this certainly will not fit a big block. Many people seem to have the same complaint as I read through the reviews so save yourself the hassle.
Conrad
Reviewed in the United States on June 4, 2023
Handsome blue. Wire lengths are good. Boots fit tight...maybe just a little too tight but fine. Only disappointment is the wire from distributor to coil. They give you 2 but neither fit on the coil end. Left my original in place. Wires work great.
Don Pew
Reviewed in the United States on June 29, 2023
The wires are too short so I had to reuse some old wires to complete the job would not order again.
Kenneth S.
Reviewed in the United States on May 25, 2023
matched OEM set that I was replacing . Looks like good quality set.
Raúlmg
Reviewed in the United States on January 31, 2023
Se los puse a mi bote y funciona muy bien son resistentes al agua
Shane
Reviewed in the United States on December 11, 2022
Solved the misfire issue
Dan
Reviewed in the United States on September 5, 2020
I asked for a return last week. These are nice plug wires but they are way too short for a Mercruiser 454. Guessing I was sent the wrong ones. Still waiting on a response to return them. I already bought another set from someone else. They fit great and are the right length.
Stephan
Reviewed in Canada on September 28, 2020
The wires are made out of high quality materials and seem to be better than the original wires that came on the boat.4 stars strictly because I literally had to take the wires off 1 by 1 to find the wires to fit the length due to all wires were different in sizes. And none of them were labeled so it was frustrating to figure out which wire had to go where.I bought 2 sets and none of the wires were same size. (2 engines inboard)
taylor shaw
Reviewed in Canada on September 17, 2020
This product does not fit a standard 7.4 merc big block. Not even close, Good thing I bought two sets as I needed the 4 longest wires from each set to make only one of my engines run for the weekend. Big fail! Do not buy
Paul B. Nemethy
Reviewed in Canada on August 16, 2020
High quality and perfect fit for the V8 Mercruisier
don boissonneault
Reviewed in Canada on July 17, 2020
Great quality, never heard of the name, but they are a sturdy wire..