Mercury Marine Catalog - Cylinder Heads

383 Cylinder Head
Your Price:
$887.50

This Part has options, please click the button below to order.

Special Order OEM Mercruiser Parts can take up to 7-10 business days to ship.

383 Cylinder Head

525-938-8M0115139

383 Cylinder Head

  • All new Quicksilver cast iron cylinder head with hardened valve seats
  • 8-bolt intake manifold pattern
  • Upgraded ports for higher airflow
  • Beehive valve springs - 6000 RPM Rev Limit with 0.555" lift
  • Screw in rocker studs
  • Marine grade brass core plugs
  • Features Black-X Composite valves for 42% Longer Life
    • 1.94" Intake
    • 1.50" Exhaust

For: 383 4V MCM/MIE Plus Series, 383-CT Circle Tank

Supercedes: 8M0060620


540 Cylinder Head - 2.19" Valves
Your Price:
$1,525.00

This Part has options, please click the button below to order.

Special Order OEM Mercruiser Parts can take up to 7-10 business days to ship.

540 Cylinder Head - 2.19" Valves

525-938-8M0115142

540 Cylinder Head - 2.19" Valves

  • All new Quicksilver cast iron cylinder head with hardened valve seats
  • Rectangular intake ports
  • 540 Plus Series or Big Block Gen V & VI Boosted Applications
  • Not for Mark IV
  • Heavy duty valve springs - 5500 RPM Rev Limit
  • 2.19" intake valve
  • Screw in rocker studs & push rod guides
  • Marine grade brass core plugs
  • Features Black-X Composite Valves for 42% Longer Life

For: 540 Mag Bravo 4V Plus Series

Supercedes: 900-8M0094193


8.1L Cylinder Head - Driver Side
Your Price:
$2,187.50

This Part has options, please click the button below to order.

Special Order OEM Mercruiser Parts can take up to 7-10 business days to ship.

8.1L Cylinder Head - Driver Side

525-900-8M0091709

8.1L Cylinder Head - Driver Side

  • All new Quicksilver cast iron cylinder head with hardened valve seats
  • Heavy duty valve springs - 5200 RPM Rev Limit
  • Screw in rocker studs & push rod guides
  • Marine grade brass core plugs
  • Features Black-X Composite Valves for 42% Longer Life

For: 2000-2009 MCM 496 & 496 HD, 2000-2009 MIE 8.1S Horizon & 8.1S HO, 496 HO MPI Plus Series, 8.1L Horizon Plus Series, 8.1L L18


CYLINDER HEAD COM Mercruiser 900-880536A18
Your Price:
$3,954.99

This Part has options, please click the button below to order.

Special Order OEM Mercruiser Parts can take up to 7-10 business days to ship.

Complete Cylinder Head 900-880536A18

525-900-880536A18

Mercruiser Complete Cylinder Head  900-880536A18


HEAD ASY-COMPLETE Mercruiser 900-880536A10
Your Price:
$4,418.49

This Part has options, please click the button below to order.

Special Order OEM Mercruiser Parts can take up to 7-10 business days to ship.

Complete Head Assembly 900-880536A10

525-900-880536A10

Complete Head Assembly 900-880536A10



CYL HEAD-BLACK Mercruiser 900-8M0070288
Your Price:
$4,138.77

This Part has options, please click the button below to order.

Special Order OEM Mercruiser Parts can take up to 7-10 business days to ship.

Cylinder Head (Black) 900-8M0070288

525-900-8M0070288

Mercruiser Cylinder Head (Black) 900-8M0070288



CYL HEAD-BLACK Mercruiser 900-8M0070289
Your Price:
$4,138.77

This Part has options, please click the button below to order.

Special Order OEM Mercruiser Parts can take up to 7-10 business days to ship.

Cylinder Head (Black) 900-8M0070289

525-900-8M0070289

Mercruiser Cylinder Head (Black) 900-8M0070289



CYL HEAD-PORT Mercruiser 900-8M8025141
Your Price:
$457.77

This Part has options, please click the button below to order.

Special Order OEM Mercruiser Parts can take up to 7-10 business days to ship.

Cylinder Head (Port) 900-8M8025141

525-900-8M8025141

Mercruiser Cylinder Head (Port) 900-8M8025141



CYL HEAD-STBD Mercruiser 900-8M8025142
Your Price:
$1,419.64

This Part has options, please click the button below to order.

Special Order OEM Mercruiser Parts can take up to 7-10 business days to ship.

Cylinder Head (Starboard) 900-8M8025142

525-900-8M8025142

Mercruiser Cylinder Head (Starboard) 900-8M8025142



CYLINDER HEAD Mercruiser 900-835430T03
Your Price:
$514.99

This Part has options, please click the button below to order.

Special Order OEM Mercruiser Parts can take up to 7-10 business days to ship.

Cylinder Head 900-835430T03

525-900-835430T03

Mercruiser Cylinder Head 900-835430T03



Cylinder Head 900-841020A08
Your Price:
$565.99

This Part has options, please click the button below to order.

Special Order OEM Mercruiser Parts can take up to 7-10 business days to ship.

Cylinder Head 900-841020A08

525-900-841020A08

CYLINDER HEAD Mercruiser 900-841020A08

Supersedes: 900-841020A2
900-841020A04

Supercedes: 900-841020A2, 900-841020A04


CYLINDER HEAD Mercruiser 900-845403A02
Your Price:
$813.17

This Part has options, please click the button below to order.

Special Order OEM Mercruiser Parts can take up to 7-10 business days to ship.

Cylinder Head 900-845403A02

525-900-845403A02

CYLINDER HEAD Mercruiser 900-845403A02


CYLINDER HEAD Mercruiser 900-845404A02
Your Price:
$802.12

This Part has options, please click the button below to order.

Special Order OEM Mercruiser Parts can take up to 7-10 business days to ship.

Cylinder Head 900-845404A02

525-900-845404A02

CYLINDER HEAD Mercruiser 900-845404A02


CYLINDER HEAD Mercruiser 900-879172206
Your Price:
$854.99

This Part has options, please click the button below to order.

Special Order OEM Mercruiser Parts can take up to 7-10 business days to ship.

Cylinder Head 900-879172206

525-900-879172206

CYLINDER HEAD Mercruiser 900-879172206

Supersedes: 900-898101415


CYLINDER HEAD Mercruiser 900-880536A16
Your Price:
$1,999.99

This Part has options, please click the button below to order.

Special Order OEM Mercruiser Parts can take up to 7-10 business days to ship.

Cylinder Head 900-880536A16

525-900-880536A16

CYLINDER HEAD Mercruiser 900-880536A16


CYLINDER HEAD ASY Mercruiser 8M0046344
Your Price:
$4,947.49

This Part has options, please click the button below to order.

Special Order OEM Mercruiser Parts can take up to 7-10 business days to ship.

CYLINDER HEAD ASY Mercruiser 8M0046344

525-900-8M0046344

Cylinder Head Assembly Mercruiser 8M0046344


CYLINDER HEAD ASY Mercruiser 900-879288A53
Your Price:
$5,346.49

This Part has options, please click the button below to order.

Special Order OEM Mercruiser Parts can take up to 7-10 business days to ship.

CYLINDER HEAD ASY Mercruiser 900-879288A53

525-900-879288A53

CYLINDER HEAD ASY Mercruiser 900-879288A53


CYLINDER HEAD ASY Mercruiser 900-8M0012159
Your Price:
$868.02

This Part has options, please click the button below to order.

Special Order OEM Mercruiser Parts can take up to 7-10 business days to ship.

CYLINDER HEAD ASY Mercruiser 900-8M0012159

525-900-8M0012159

CYLINDER HEAD ASY Mercruiser 900-8M0012159


CYLINDER HEAD COM Mercruiser 900-835430T07
Your Price:
$1,112.49

This Part has options, please click the button below to order.

Special Order OEM Mercruiser Parts can take up to 7-10 business days to ship.

CYLINDER HEAD COM Mercruiser 900-835430T07

525-900-835430T07

CYLINDER HEAD COM Mercruiser 900-835430T07

Supersedes: 900-835430T06

Supercedes: 900-835430T06


CYLINDER HEAD COM Mercruiser 900-880536A15
Your Price:
$3,799.99

This Part has options, please click the button below to order.

Special Order OEM Mercruiser Parts can take up to 7-10 business days to ship.

CYLINDER HEAD COM Mercruiser 900-880536A15

525-900-880536A15

CYLINDER HEAD COM Mercruiser 900-880536A15