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Replacement Inboard Ignition Coil - Compatible with MerCruiser Thunderbolt IV and V Ignition Systems with HEI - Replaces 18-5438, 392-805570A2, 392-7803A4, 392-805570A1, 72115, 40511
| ASIN | B07GL4TM27 |
| Automotive Fit Type | Vehicle Specific Fit |
| Best Sellers Rank | #34,914 in Automotive ( See Top 100 in Automotive ) #65 in Automotive Replacement Ignition Coils |
| Brand | AA Ignition |
| Brand Name | AA Ignition |
| Compatible with Vehicle Type | Boat |
| Connector Gender | Male-to-Female |
| Customer Reviews | 4.4 out of 5 stars 876 Reviews |
| EU Spare Part Availability Duration | 2 years |
| Installation Type | Plug In |
| Item Dimensions | 20.47 x 16.93 x 7.87 inches |
| Item Weight | 0.6 kg |
| Item dimensions L x W x H | 20.47 x 16.93 x 7.87 inches |
| Manufacturer | AA Ignition |
| Manufacturer Part Number | 18-5438 |
| Manufacturer Warranty Description | 12 Months Warranty |
| Model Number | 18-5438 |
| Number of Items | 1 |
| OEM Equivalent Part Number | 18-5438, 3000-8M0079202, 392-7803, 64570, RL5438, 392-805570A2, 392-7803A4, 392-805570A1, 72115, 40511, 9-29701 |
| Part Interchange Info | replacement |
| Vehicle Service Type | Boat |
G**.
Doesn't include boot or spade terminals shown
Does not come with the rubber boot or the spade terminals shown. Otherwise looks fine. Not installed yet so can't comment on performance.
C**
Good quality works great
Works great for 2005 mercruiser 4.3 with thunderbolt v ignition
R**D
AS advertized
Looks ok
C**L
Not compatible
Mercruiser owner beware- the specs on this do NOT match the ones posted in the owners manual for a mercruiser 4.3 engine with the thunderbolt iv or v systemBench tested at 1.5 ohms and the mercruiser specs are 0.6 - 0.9 ohms primarySeller did offer a full refund after multiple emails trying to get them to understand the product did not meet specifications for the 4.3 or even the 5.0 mercruiser
G**A
Fixed 4.3 Mercruiser starting issues
Installed on Mercruiser 4.3 with thunderbolt 4 ignition. Perfect Easy fit. Resolved an issue where my boat wouldn’t start when warm. Boat starts IMMEDIATELY now cold or warm. Couldn’t be happier. The fact that this was less than 20% of the OEM part was nice, and I ordered a spare just in case and still saved $60+ over the OEM.
Trustpilot
3 weeks ago
5 days ago