New Mercruiser Long Blocks

Please note that when replacing a longblock the oil cooler must be replaced. Failing to replace will void any warranty with the factory.

Some things not included that will need to be transferred from the previous engine or purchased separately:
• Flywheel
• Harmonic balancer
• Gasket set
• Quicksilver/Mercury Synthetic Blend 25W‑40 4‑Stroke Oil

Mercury-Mercruiser 800-866138A05 Longblock 8 Cyl, 5.7 L Scorpion EC

$10,064.30 $9,014.08

800-866138A05 LONG BLOCK ASSEMBLY
This is a genuine Mercury Marine factory OEM part, not aftermarket
Please check our current stock level and order below or use the Contact Us form at the bottom of the page for any questions

Mercury-Mercruiser 8M0114790 Longblock Assembly 4.5L, 6 Cyl.

$9,478.55 $8,689.20

8M0114790 Longblock Assembly 6 Cylinder, 4.5L
This is a genuine Mercury Marine factory OEM part, not aftermarket
Please check our current stock level and order below or use the Contact Us form at the bottom of the page for any questions

Mercury-Mercruiser 8M0114814 Longblock Assembly 6.2L, 377

$12,550.00 $11,240.41

8M0114814 Longblock Assembly 6.2L V-8 377
This is a genuine Mercury Marine factory OEM part, not aftermarket
Please check our current stock level and order below or use the Contact Us form at the bottom of the page for any questions

Mercury-Mercruiser 8M0125139 Longblock 6.2L 8 Cyl. V8 2015-16

$12,550.00 $11,240.41

8M0125139 Longblock 6.2L V8 377 2015-16
This is a genuine Mercury Marine factory OEM part, not aftermarket
Please check our current stock level and order below or use the Contact Us form at the bottom of the page for any questions

Mercury-Mercruiser 8M0157869 New Longblock 8.2L 502 V8

$18,257.15 $16,352.02

8M0157869 Longblock 8.2L 502 V8
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

Mercury-Mercruiser 8M0187366 Longblock 5.7L 350 V-8 05-15

$9,475.00 $8,944.41

8M0187366 Longblock 5.7L 2005-15
This is a genuine Mercury Marine Quicksilver 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