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Mercury Outboard 61-8M0142279 Long Block V8

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Best Holiday wishes from the crew at BAM Marine!

We are closed until Monday Jan 5th, 2026

Orders placed now will be processed when we return

See more details about our holiday schedule here

As always online ordering is available 24/7!

We wish you and yours health and happiness this holiday season! Thank you.

 

 

 

61-8M0142279 Long Block V8
This is a genuine Mercury Outboard factory OEM part, not aftermarket
Please check our current stock level and order below. Use the Contact Us form at the bottom of the page for any questions. There may be a$250.00 refundable core charge for this longblock.
Availability: Not in stock - will be transferred from factory
Manufacturer part number: 8M0142279
GTIN: 745061242135
Normally Ships: Warehouse transfer - on 4th business day
Manufacturer: Mercury Marine
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MSRP: $17,671.45
$15,827.42

This long block includes a solid flywheel vs original rubber dampener flywheel.

When servicing a V8 AMS or V8 CMS engine serial # 3B056352 and below with this new long block kit that includes a solid flywheel, you must install the rubber isolated alternator mount kit 8M0188844. Failure to change the mounts will cause excessive vibration to the alternator.

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This long block includes a solid flywheel vs original rubber dampener flywheel.

When servicing a V8 AMS or V8 CMS engine serial # 3B056352 and below with this new long block kit that includes a solid flywheel, you must install the rubber isolated alternator mount kit 8M0188844. Failure to change the mounts will cause excessive vibration to the alternator.

Related products
Bar codes for Mercury Marine part number 8M0188844

Mercury-Mercruiser 8M0188844 ALTERNATOR MOUNT

$119.50 $112.54
8M0188844 ALTERNATOR MOUNT
This is a genuine Mercury Marine factory OEM part, not aftermarket
Please check our current stock level and order below. Use the Contact Us form at the bottom of the page for any questions