MerCruiser | Recmar

Idle Air Control Valve for MerCruiser MPI ECM 555 Engines | Replaces 862998 / 8M0181068 | REC862998

REC862998

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  • REC862998 Recmar MerCruiser idle air control valve with silver solenoid, cast aluminium body and black connector
  • Side view of REC862998 MerCruiser IAC valve showing electrical connector, mounting face and twin airflow ports

Key features:

  • MerCruiser OEM Ref: 862998 | 8M0181068
  • Sierra Cross-Ref: 18-7701
  • Fitment Models: 3.0LMPI, 4.3 MPI, 5.0L MPI, 350 MAG MPI, MX6.2 MPI, 8.1L 600, 662, 700
  • Electrical Connector: 2-wire Connector
  • Mount: Remote-mounted IAC valve
£99.67 GBP
£99.67 GBP
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Product Specifications and Features

Aftermarket idle air control valve for selected MerCruiser multi-port injection engines using the ECM 555 control module. Recmar REC862998 is the remote-mounted IAC valve used to meter bypass air at closed throttle, helping the engine maintain a stable idle speed during starting, neutral idle, and shift transitions.

This product is best positioned as a direct replacement for MerCruiser 862998, superseded by Mercury / Quicksilver 8M0181068. The strongest confirmed OEM fitment is for 3.0L MPI, V6, and V8 (305, 350 and 496 cid) MerCruiser sterndrive and inboard engines with ECM 555.

Your draft also mentioned 8M0045797, but that appears to be a distinct Mercury listing specifically tied to MCM 8.2 Mag ECand MIE 8.2 EC. Because of that, I would not market REC862998 as a blanket 8.2L replacement unless you can verify that cross-reference directly from supplier packaging or catalog data.

 

Key specification Value
Product type Idle Air Control (IAC) valve
Brand Recmar
Recmar part number REC862998
Primary function Controls bypass air at closed throttle to maintain steady idle speed
Mounting style Remote-mounted IAC valve
Electrical connector 2-wire connector
Primary OEM reference 862998
Current Mercury / Quicksilver OEM reference 8M0181068
Related gasket reference 27-863112, superseded by 27-8M0119616
Typical included hardware Mounting gasket commonly included on aftermarket kits, but verify pack contents if needed

 

Fitment summary Value
Official Mercury / Quicksilver fitment MerCruiser 3.0L MPI, V6, and V8 (305, 350 and 496 cid) sterndrive or inboard engines with ECM 555
Typical MerCruiser engine families 3.0L MPI, 4.3L MPI, 5.0L MPI, 5.7L / 350 MAG MPI, 8.1L / 496 MAG family where ECM 555 is used
Controller requirement ECM 555
Important fitment note Do not rely on engine size alone. Confirm the engine uses the ECM 555 IAC arrangement and match the OEM part number before ordering.
DTS note Some later MPI engines with DTS use different idle / throttle control arrangements and should be checked carefully by serial number

 

OEM and cross references Value
Mercury / MerCruiser 862998, 8M0181068
Sierra 18-7701
Related gasket 27-863112, 27-8M0119616
Common aftermarket cross-listed number often seen online 8M0045797, but this should be treated cautiously because Mercury also lists it separately for some 8.2 EC applications

 

Common failure symptoms Value
Rough or hunting idle Engine idles unevenly or surges at the dock
Stall on deceleration or shift Engine may die when dropping to neutral or shifting into gear
Hard starting Engine may start easier if throttle is slightly opened
Idle instability RPM may dip or fluctuate excessively at closed throttle
Related alarms / fault behavior Idle-related faults may contribute to warning activity, but exact SmartCraft / Guardian responses vary by engine and diagnostic code

 

Structured data / feed field Value
Brand Recmar
MPN REC862998
Condition New
Product type Idle Air Control Valve
Compatible brand MerCruiser
Primary OEM reference 862998
Current OEM reference 8M0181068
Additional reference 18-7701
Controller compatibility ECM 555
Related gasket 27-863112 / 27-8M0119616

 

Shipping Information

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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.
Idle Air Control Valve for MerCruiser MPI ECM 555 Engines | Replaces 862998 / 8M0181068 | REC862998

£99.67 GBP

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