Mercury Marine
Mercury ECM Engine Control Module 4.3L Alpha #8M0064762
$2,698.49
Mercury Marine 8M0064762 ModulesMercury ECM Engine Control Module 4.3L Alpha #8M0064762Normalized SKU: 8M0064762UPC Code: 745061899384
Mercury Marine
Mercury ECM Engine Control Module #8M0059367
$2,527.99
Mercury Marine 8M0059367 ModulesMercury ECM Engine Control Module #8M0059367Normalized SKU: 8M0059367UPC Code: 745061888289
Mercury Marine
Mercury PCM Propulsion Control Module #865857T05
$2,867.49
Mercury Marine 865857T05 Modules
The PCM is the brain of your Mercury propulsion system. It controls fuel delivery, ignition timing, throttle response, shift logic, and a dozen other functions that determine how your engine starts, runs, and performs under load. When it fails, you'll know — hard starts, limp mode, erratic behavior, or a complete no-start are all on the table. And unlike most engine parts, there's no workaround. If the PCM is gone, the engine doesn't run.
The #865857T05 is a genuine Mercury OEM Propulsion Control Module, not a remanufactured unit or an aftermarket substitute. At this level of the engine management system, genuine matters. Mercury programs these modules to exact calibration specs for the specific engine application — fuel maps, rev limiters, shift points, and protection parameters are all baked in from the factory. An incorrect or improperly calibrated module can cause poor performance, fault codes, or damage to other drivetrain components.
This is a significant investment, and it deserves a call before you order. Our team can help confirm fitment and walk you through what to expect with installation and any required calibration steps. Reach us at 816-841-3364 — we'd rather spend five minutes on the phone with you now than have you deal with a return or a misapplication later. When you need the right PCM, this is it.
Normalized SKU: 865857T05UPC Code: 745061750616
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Sierra
Sierra TPM Module Merccury 823251A6 #18-99336
$422.82
$527.73
Sierra 18-99336 Modules
1996-1999 (30 & 40HP) w/ 4 Wire CDM Module
Interchange:
CDI 144-3251A 6Mercury Marine 823251A6Normalized SKU: 1899336UPC Code: 808282395988
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Sierra
Sierra OMC Shift Assist Module Prestolite BID #18-99298
$141.87
$176.11
Sierra 18-99298 Modules
Use with Prestolite BID Distributor: (GM 4.3 Liter, 6 Cylinder)
Interchange:
CDI 123-7567OMC Stern Drive 763786OMC Stern Drive 986999OMC Stern Drive 987403OMC Stern Drive 987567OMC Stern Drive 987875
Normalized SKU: 1899298UPC Code: 808282395445
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Sierra
Sierra Force Replacement for BIM 1 Module #18-99297
$324.43
$412.05
Sierra 18-99297 Modules
Sierra Force Replacement for BIM 1 Module
1989-1992 9.9 & 15 HP
Includes: (2) 181-1000, 183-3740 & Coil Wires
Interchange:
CDI: 116-2379K 2Chrysler/Force/US Marine: F12379
Normalized SKU: 1899297UPC Code: 808282396060
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Sierra
Sierra Tohatsu Ignition Replaces 3A1062402M #18-99274
$334.95
$425.41
Sierra 18-99274 Modules
Tohatsu Ignition Replaces 3A1062402M
1983-1997 25 HP 2-Stroke
Interchange:
CDI: 119-2402Nissan/Tohatsu Outboard: 346062601MNissan/Tohatsu Outboard: 346062602MNissan/Tohatsu Outboard: 3A1062402MNormalized SKU: 1899274UPC Code: 808282395414
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Sierra
Sierra ESA Shift Assist Module OMC Volvo Delco Only #18-99319
$107.27
$126.20
Sierra 18-99319 Modules
ESA Shift Assist Module
OMC Volvo Delco Only
ESA for Delco Distributor with Tach. Output and Dual Connectors
Interchange:
CDI: 123-7878OMC Stern Drive: 986610OMC Stern Drive: 987396OMC Stern Drive: 987878Normalized SKU: 1899319UPC Code: 808282395469
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Sierra
Sierra TPM Module Mercury 823251A 5 #18-99267
$413.42
$515.99
Sierra 18-99267 Modules
TPM Module
Mercury 1994-1995 (30 & 40 HP) with 3-Wire CDM Module
Mercury 823251A 5
Interchange:
CDI: 144-3251A 5Mercury Marine: 823251A2Mercury Marine: 823251A3Mercury Marine: 823251A5Normalized SKU: 1899267UPC Code: 808282395575
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Sierra
Sierra Timing Protect Module Mercury #857169T2 #18-99265
$491.89
$613.93
Sierra 18-99265 Modules
Timing Protect Module
Mercury 2000-2005, EFI Engines
Mercury #857169T2
Interchange:
CDI: 144-7169Mercury Marine: 857169A1Mercury Marine: 857169A2Mercury Marine: 857169T1Mercury Marine: 857169T2Normalized SKU: 1899265UPC Code: 808282395483
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Recmar
Recmar Pulses Module #REC3854001
$23.79
$28.40
Recmar REC3854001 ModulesThis product replaces:556194 / 802465, 811639, 811639T, 850489 / 0986642, 3854001 / 3854001Normalized SKU: REC3854001
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Regitar USA
Regitar Ignition Module for GM 4-Cyl V6/V8 with Delco HEI #RMG004
$93.16
$115.65
Download LiteratureRegitar USA RMG004 ModulesIgnition Module for Mercruiser Engines: 4 Cyl., V-6 & V-8 Engines with Delco HEI IgnitionIgnition Module for Mercruiser Engines: 4 Cylinder, V-6 & V-8 Engines with Delco HEI Ignition.Engine Brand:Mercury / MercruiserFitment:GM 4 Cyl., V-6 & V-8 Engines with Delco HEI Ignition Normalized SKU: RMG004UPC Code: 724469630416Regitar USA RMG004 Literature Download Quick Reference Guide
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Sierra
Sierra Mercury Oil Warning Module #18-99411
$170.36
$216.37
Sierra 18-99411 Modules
Oil Warning Module
Replaces Mercury 14857A2, 14857A4, 14857A6, 14857A10, 14857A11, 14857A12, 14857A13, 14857A14, 14857A15, 14857A16
Replaces CDI 144-4857-16
Normalized SKU: 1899411UPC Code: 808282394424
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Sierra
Sierra OMC Shift Assist Module 4/6/8 Cylinder #18-5890-1
$137.78
$174.99
Sierra 18-5890-1 Modules
OMC Electronic Shift Assist Module
Replaces OMC 982749, 982755, 982774, 984036, 984276, 984281, 984730, 984740, 986342, 986837, 987738, 987739, 987740
Replaces CDI 123-9800, 123-9898-P
Normalized SKU: 1858901UPC Code: 808282392413
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Sierra
Sierra Switchbox Mercury #18-5775-1
$259.48
$293.35
Sierra 18-5775-1 Modules
Fits 3 and 6-cylinder outboards with ADI ignition systems
Interchangeable with CDI 114-7778, Chrysler/Force/US Marine 332-7778A12, Mallory 9-25100, Mercury Marine 332-5524A1, 332-7778A1, 332-7778A12, 332-7778A3, 332-7778A6, 332-7778A7, 332-7778A9, F749301, F7778A9, Mercury Race Outboard 332-7778A12, 332-7778A3, and Mercury Sport Jet 332-7778A12
Normalized SKU: 1857751UPC Code: 808282392604
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Recmar
Recmar Module Delco Distributor #REC3854003
$73.46
$91.19
Recmar REC3854003 ModulesThis product replaces:7243110 / 556096 / 802464, 804412, 811637, 811637001, 811637T, 81637002, 850487, 8M0123099, 8M6008208 / 3854003 / 3854003Normalized SKU: REC3854003
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Regitar USA
Regitar Ignition Module for Mercruiser 1981-1997 350 MAG #RMG005
$64.73
$77.67
Download LiteratureRegitar USA RMG005 ModulesIgnition Module for Mercruiser Engines: 350MAG MPI, 4.3L, 5.0L, 5.7L Engines (1981-97) with THUNDERBOLT Electronic IgnitionIgnition Module for Mercruiser Engines: 350MAG MPI, 4.3L, 5.0L, 5.7L Engines (1981-97) with THUNDERBOLT Electronic Ignition.Engine Brand:Mercury / MercruiserFitment:350MAG MPI, 4.3L, 5.0L, 5.7L engines (1981-97) with THUNDERBOLT electronic ignition Normalized SKU: RMG005UPC Code: 724469630423Regitar USA RMG005 Literature Download Quick Reference Guide
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Regitar USA
Regitar Ignition Module for 2001-up Mercury/MIE 4.3/5.0/5.7L #RMG003
$236.46
$300.32
Download LiteratureRegitar USA RMG003 ModulesIgnition Module for Mercruiser Engines: 2001 & Newer MCM/MIE 4.3L, 5.0L, 5.7L & 6.2L MPI Engines with ECM 555Ignition Module for Mercruiser Engines: 2001 and Newer MCM/MIE 4.3L, 5.0L, 5.7L, and 6.2L MPI Engines With ECM 555.Engine Brand:Mercury / MercruiserFitment:2001 & Newer MCM/MIE 4.3L, 5.0L, 5.7L & 6.2L MPI Engines with ECM 555 (S/N 0M300000 & Up). Normalized SKU: RMG003UPC Code: 724469630409Regitar USA RMG003 Literature Download Quick Reference Guide
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Crusader
Crusader Knock Control Module 7.4L #R116015
$108.52
$134.71
Crusader R116015 Modules
Knock Control Module
7.4L
Normalized SKU: R116015
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United Ignition Wire
United Ignition Wire HVS Ignition Coil & Module Assembly #OD-155
$178.48
$226.69
United Ignition Wire OD-155 Modules
HVS ignition system coil assembly used on 4.3L, 5.0L and 5.7L GM engines with multiport fuel injection.
United Marine replacement HVS ignition coil and module assembly used on GM 4.3L, 5.0L and 5.7L engines
Includes the ignition coil, ignition module and heat sync installed on the mounting bracket
Normalized SKU: OD155
Frequently Asked Questions
First Choice Marine is an online marine retailer carrying a diverse line of marine parts and accessories and related items from industry-respected and demanded manufacturers and suppliers. Through our diverse distributor network, we are able to access over 150,000 items, including our current site inventory, new products being added, and special order items. If you need it on your boat... we are your one-stop shop!
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- Qualifies for Free Shipping: This item qualifies for free shipping when the order is $149+
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