MerCruiser | Recmar

Wet-Joint Center-Rise Exhaust Manifold for MerCruiser 5.0, 5.7 & 6.2 V8 - Replaces 860246A15 | MAR246

MAR246

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Key features:

MerCruiser OEM Ref: 860246A15 | 87114A19 | 860246A10 | 860246Q11 | 860246A9 | 860246A3 | 87114A8 | 87114A30 | 87114
Style: Wet-joint, center-rise
Fitment Models: 230, 5.0L, 5.0LX, 5.0 EFI, 5.0 MPI, MIE | 260, 300, 320 EFI, 5.7L, 5.7LX, 350 Mag, 350 Mag MPI, 350 Mag Horizon, Black Scorpion, MIE, Ski | 377 Scorpion and related 377 cid / 6.2L
Fitment Side: Port or starboard
Material: Cast Iron

£251.62 GBP

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Product Specifications and Features

MAR246 is an aftermarket cast-iron marine exhaust manifold for MerCruiser GM small-block V8 engines using the older wet-joint, center-rise, two-piece manifold and elbow exhaust system. It is a single manifold that fits either the port or starboard side and is commonly used on MerCruiser 5.0L, 5.7L and 6.2L / 377 cid applications from the 1983-2002 manifold family.

This manifold cross-references directly to the MerCruiser 860246A15 / 87114A19 family and is also commonly listed against earlier superseded numbers in the same casting pattern. It is designed for the center-rise wet-joint exhaust layout, not the later dry-joint setup. That distinction matters, especially on late 2001-2002 engines where serial-number verification is strongly recommended before ordering.

The supplied kit shown includes the manifold plus gasket and hardware items, including the manifold-to-head gasket, riser/elbow gasket, mounting bolts, and plug / drain hardware as pictured. If you are replacing both banks, order 2x quantity.

Key Specifications

Spec	Details
Recmar part number	`MAR246`
Product type	Marine exhaust manifold
Exhaust style	Wet-joint, center-rise, two-piece manifold/elbow system
Engine family	GM small-block marine V8
Primary engine sizes	`5.0L / 305 cid`, `5.7L / 350 cid`, `6.2L / 377 cid`
Side fitment	Port or starboard
Material	Heavy-duty cast iron
Cooling type	Water-cooled marine manifold
System type	Older wet-joint exhaust family
Dry-joint compatible	No
Sold as	Single manifold
Included in pictured kit	Manifold, manifold gasket, elbow/riser gasket, bolts, plug/drain hardware

OEM and Cross References

Brand	Part number
Mercury / MerCruiser	`860246A15`
Mercury / MerCruiser	`87114A19`
Mercury / MerCruiser	`860246A10`
Mercury / MerCruiser	`860246Q11`
Mercury / MerCruiser	`860246A9`
Mercury / MerCruiser	`860246A3`
Mercury / MerCruiser	`87114A8`
Mercury / MerCruiser	`87114A30`
Mercury / MerCruiser	`87114`
OMC / Johnson / Evinrude	`0509522`
Sierra	`18-1953-2`
Barr	`MC-1-87114`
GLM	`51230`
HGE	`7114`
Osco	`7114B2`
Mallory	`9-40507`
Marine Power	`0994-100`

Engine Compatibility

Engine group	Typical applications
5.0L / 305 cid GM small-block V8	MerCruiser `230`, `5.0L`, `5.0LX`, `5.0 EFI`, `5.0 MPI`, `MIE` applications using wet-joint center-rise exhaust
5.7L / 350 cid GM small-block V8	MerCruiser `260`, `300`, `320 EFI`, `5.7L`, `5.7LX`, `350 Mag`, `350 Mag MPI`, `350 Mag Horizon`, `Black Scorpion`, `MIE`, `Ski` wet-joint applications
6.2L / 377 cid GM small-block V8	`377 Scorpion` and related `377 cid / 6.2L` wet-joint center-rise applications

Important Fitment Notes

Check before ordering	Why it matters
Wet-joint vs dry-joint exhaust	This manifold is for the older wet-joint family and will not replace later dry-joint systems
Port or starboard side	Same manifold casting fits either side
Single vs pair replacement	This listing is for one manifold; most V8 engines use two
Riser / spacer configuration	This manifold family is used with different wet-joint riser and spacer combinations
Late 2001-2002 engines	Serial-number verification is recommended because changeover years can be mixed

Field	Value
Brand	Recmar
MPN	`MAR246`
Product type	Exhaust manifold
Material	Cast iron
Engine type	Marine gasoline inboard / sterndrive
Engine family	GM small-block V8
Compatible displacements	`5.0L`, `5.7L`, `6.2L / 377 cid`
Fitment side	Port or starboard
Exhaust design	Wet-joint center-rise
Condition	New aftermarket replacement
OEM references	`860246A15`, `87114A19`, `860246A10`, `860246Q11`, `860246A9`, `860246A3`, `87114A8`, `87114A30`, `87114`
Aftermarket references	`18-1953-2`, `MC-1-87114`, `51230`, `7114`, `7114B2`, `9-40507`, `0994-100`

Shipping Information

All orders ship from the UK. Orders placed Monday–Thursday before 12:00pm are processed same day. Orders placed Friday after 12:00pm through Sunday are processed the following Monday. Processing times vary by stock location.

Out of stock items can be back-ordered with a typical 3–4 week lead time.

If an item shows "Dispatch Available Today" and you order after 2pm UK time, processing begins the next business day.

All times are in UK BST.

Wet-Joint Center-Rise Exhaust Manifold for MerCruiser 5.0, 5.7 & 6.2 V8 - Replaces 860246A15 | MAR246

£251.62 GBP

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