MerCruiser Engine Parts
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OEM MerCruiser 4 Cylinder V6 V8 Mag MPI Starter Motor 50-863007A1 (Replaces 50-806964A3 & 50-806964A4)
Mercury Marine / Quicksilver
$319.18 $250.99NEW OEM MerCruiser Starter 50-863007A1 (Replaces 50-806964A3 & 50-806964A4) For most late model Chevy GM Marine engines with the 14 inch flywheel Fits most MerCruiser Engines:• 3.0L / 4 Cylinder (1999 and Newer MCM 3.0L)• 4.3L...- Part Number:
- 710-50-863007A 1
- Availability:
- In Stock - Ships same or next business day.
$319.18 $250.99 -
OEM MerCruiser Gear Lube Monitor Reservoir Bottle 806193A47 8M0075710
Mercury Marine / Quicksilver
$50.00 $35.10OEM MerCruiser Gear Lube Monitor Reservoir Bottle 806193A47 8M0075710 Gear lube bottle 8M0075710 is for use with MerCruiser Alpha and Bravo stern drives with standard cooling (model year 2002 and newer). Easy to install with common shop tools...- Part Number:
- 710-8M0075710
- Availability:
- In Stock - Ships same or next business day.
$50.00 $35.10 -
OEM MerCruiser Water Distribution Housing (3 & 7 Point Drain - Standard Cooling) 863631a1 863631t1
Mercury Marine / Quicksilver
$311.58 $218.73OEM MerCruiser Water Distribution Housing (3 & 7 Point Drain - Standard Cooling) 863631t1 This is a commonly mis-ordered part! Please confirm fitment of MerCruiser parts with your serial numberPhotos and descriptions provided via Mercury may not...- Part Number:
- 710-863631T 1
- Availability:
- In Stock - Ships same or next business day.
$311.58 $218.73 -
OEM MerCruiser Water Distribution Housing (Single Point/Rod Actuated - standard cooling) 863444T1
Mercury Marine / Quicksilver
$294.83 $206.97OEM MerCruiser Water Distribution Housing (Single Point/Rod Actuated - standard cooling) 863444T1 This is a commonly mis-ordered part! Please confirm fitment of MerCruiser parts with your serial numberPhotos and descriptions provided via...- Part Number:
- 710-863444T 1
- Availability:
- In Stock - Ships same or next business day.
$294.83 $206.97 -
OEM Quicksilver/Mercury Small Block 5.0 5.7 6.2 350 377 Circulating Pump 46-8M0113734
Mercury Marine / Quicksilver
$166.58 $142.99OEM Quicksilver/Mercury Small Block Circulating Pump 46-8M0113734 Replacement water pump with housing 8M0113734 is for V-6 (serial number 1A603239 and below) and V-8 (305, 350 and 377 cid) MerCruiser engines made by General Motors. See your owner's...- Part Number:
- 710-46-8M0113734
- Availability:
- In Stock - Ships same or next business day.
- Application:
- GM V-6(s/n 1A063239 & below) & V-8 (350 & 377 cid) engines
$166.58 $142.99 -
OEM MerCruiser 4.3/5.0/5.7 V6/V8 Brass Sea Water Pump 862914T3 862914T10 8M0118067 8M0137216 8M0122655 8M0139995
Mercury Marine / Quicksilver
$601.42 $533.46NEW OEM Factory MerCruiser BRASS sea water pump assy WITHOUT Air Fittings (AKA Raw Water Pump/ Seawater pump) Casting number on this pump housing is 8629140 and the casting number on the back nipple plate is 862776c and is removable if yours...- Part Number:
- 710-46-8M0139995
- Availability:
- In Stock - Ships same or next business day.
$601.42 $533.46 -
OEM MerCruiser Thermostat Housing Gasket 27-530451
Mercury Marine / Quicksilver
$5.50 $3.22MerCruiser Thermostat Housing Gasket 27-530451 Thermostat Housing Gasket 530451 is for use on V-6 and V-8 MerCruiser stern drive and inboard engines made by General Motors. It can also be used on Outboard Marine Corporation and Volvo Penta North America...- Part Number:
- 710-27-53045 1
- Availability:
- In Stock - Ships same or next business day.
- Description:
- T-Stat housing gasket w/grounding tabs Repl OEM No. Marine Pwr# 0505-027 MC# 3852111 Volvo# 3852111-8
$5.50 $3.22 -
OEM MerCruiser Blue Plastic Drain and O-Ring 806608A02 22-806608Q01
Mercury Marine / Quicksilver
$9.50 $5.56MerCruiser Blue Plastic Drain and O-Ring 22-806608Q01 806608A02 The Quicksilver plastic blue Drain Plug Kit fits MerCruiser cylinder blocks and exhaust manifolds- Part Number:
- 710-22-806608Q01
- Availability:
- In Stock - Ships same or next business day.
$9.50 $5.56 -
OEM Mercury MerCruiser Water Pump Drive Shaft Kit 8M0140001
Mercury Marine / Quicksilver
$122.67 $86.11Mercury / Quicksilver IMPLLR DRVSHFT KT 8M0140001- Part Number:
- 710-8M0140001
- Availability:
- In Stock - Ships same or next business day.
$122.67 $86.11 -
OEM MerCruiser Alpha Bravo V6/V8 Serpentine Belt 57-865615-003 57-865615Q03
Mercury Marine / Quicksilver
$157.58 $134.99OEM MerCruiser Alpha Bravo V6/V8 Serpentine Belt 57-865615-003 57-865615Q03 Serpentine belt 865615Q03 is 2, 704mm long to fit MerCruiser 2001-2016 V-6 & V-8 (305 & 350 cid) Alpha engines with closed cooling and Bravo engines with standard...- Part Number:
- 710-57-865615Q03
- Availability:
- In Stock - Ships same or next business day.
$157.58 $134.99 -
OEM Mercruiser Quicksilver V8 MPI Spark Plug Ignition Wires Set for flat cap 84-863656A1
Mercury Marine / Quicksilver
$154.75 $132.49OEM Quicksilver/Mercury 555 Spark Plug Wires 84-863656A 1 Spark plug set 863656A1 is for use on V-8 MerCruiser stern drive and inboard engines (5.0L, 5.7L and 6.2L MPI) with ECM 555 (serial number 0M300000 through 2A455878).- Part Number:
- 710-84-863656A 1
- Availability:
- In Stock - Ships same or next business day.
- Application:
- Fits MCM/MIE 5.0L - 5.7L & 6.2L MPI engines ('01 & Newer) with ECM 555 (s/n0M300000 and up)
$154.75 $132.49 -
OEM MerCruiser GM V6 & V8 Thunderbolt IV & V Ignition Coil 300-8M0079202
Mercury Marine / Quicksilver
$122.33 $104.99OEM MerCruiser GM V6 & V8 Thunderbolt IV & V Ignition Coil Part number:300-8M0079202 (This part supersedes part numbers:392-805570A2,392-7803A4,392-7803) Genuine Mercury Marine Part for MerCruiser Inboard engines Fully watertight composite...- Part Number:
- 710-300-8M0079202
- Availability:
- In Stock - Ships same or next business day.
- Fits:
- GM V-6 & V-8 engines w/Thunderbolt IV & V ignition
$122.33 $104.99 -
OEM Quicksilver/Mercury Thunderbolt Distributor Cap & Rotor Kit 805759Q 3
Mercury Marine / Quicksilver
$58.58 $49.99OEM Quicksilver/Mercury Thunderbolt Distributor Cap & Rotor Kit 805759Q 3 This distributor cap kit contains the cap, rotor and cap gasket. Fits Marinized, V-8 MerCruiser Engines made by General Motors with Thunderbolt IV and V HEI Ignition...- Part Number:
- 710-805759Q 3
- Availability:
- In Stock - Ships same or next business day.
- Application:
- MerCruiser GM V-8 w/ Thunderbolt HEI ignition
$58.58 $49.99 -
OEM MerCruiser 8.1/496 Mag/HO Serpentine Belt 865615001 57-865615Q01
Mercury Marine / Quicksilver
$98.25 $68.97OEM MerCruiser 8.1/496 Mag/HO Serpentine Belt 865615001 57-865615Q01 Replaces:• OEM: 57-8638761, 57-8623523, 57-865615001, 57-865615Q01• Sierra: 18-15119 Engines Models May Include:496 Mag & HO Please be sure to match up the OEM part...- Part Number:
- 710-57-865615Q01
- Availability:
- In Stock - Ships same or next business day.
$98.25 $68.97 -
OEM Quicksilver/Mercury Thermostat Kit- 160 Degree 807252Q 5
Mercury Marine / Quicksilver
$44.92 $38.49OEM Quicksilver/Mercury Thermostat Kit- 160 Degree 807252Q 5 Thermostat 807252Q5 is for V-6 and V-8 MerCruiser engines (except high performance engines) made by General Motors (model year 1987 through 2016) with standard cooling requiring a 160...- Part Number:
- 710-807252Q 5
- Availability:
- In Stock - Ships same or next business day.
- Description:
- GM engines '87 & later w/ Std. Cooling requiring a 160 Deg - thermostat
$44.92 $38.49 -
OEM Quicksilver/Mercury ECM 55 Cap/Rotor Kit 8M0061335
Mercury Marine / Quicksilver
$131.33 $112.49OEM Quicksilver/Mercury ECM 55 Cap/Rotor Kit 8M0061335 Distributor Cap Kit 8M0061335 is for use on 5.0L, 5.7L and 6.2 Multi-Port Injection (MPI) MerCruiser Stern Drive and Inboard engines with ECM 555 (2001 through 2015) (serial number 0M300000...- Part Number:
- 710-8M0061335
- Availability:
- In Stock - Ships same or next business day.
- Application:
- MerCruiser V-8 MPI Delco HEI (555 ECM) - 2001 & newer MCM/MIE 5.0L - 5.7 - 6.2L MPI engines w/ ECM 555 (s/n 0M300000 & up)
$131.33 $112.49 -
OEM Quicksilver/Mercury Thermostat-160 Degree 8M0109441
Mercury Marine / Quicksilver
$33.00 $28.49Thermostat 8M0109441: Is for MerCruiser engines made by General Motors with standard cooling systems requiring the use of the 160 degree (F) thermostat. Easy to replace with common tools. See your owner's manual for removal of non-functioning...- Part Number:
- 710-8M0109441
- Availability:
- In Stock - Ships same or next business day.
- Temp.:
- 160 Deg -
- Application:
- 1987 & newer GM engines w/standard cooling requiring 160 Deg - thermostat
$33.00 $28.49 -
OEM MerCruiser Sea Water Pump Assembly -With Serpentine Pulley 46-807151A9
Mercury Marine / Quicksilver
$570.79Replacement sea water pump housing 807151A9 is plastic to combat corrosion in saltwater installations. It is for V-6 and V-8 MerCruiser engines made by General Motors with a serpentine belt pulley system for engine accessories and electrical fuel pumps...- Part Number:
- 710-46-807151A 9
- Availability:
- In Stock - Ships same or next business day.
$570.79 -
OEM MerCruiser Gear Lube Monitor Reservoir Bottle 806193A46 8M0075709
Mercury Marine / Quicksilver
$67.25 $47.21OEM Quicksilver/Mercury Oil Bottle Assembly 8M0075709 Nipple face Right When looking at grooved side of bottle. Item Supersession Chain: RowClassPart NumberSS LevelDispDescription 1 8M0075709 00 ACT BOTTLE ASSY-OIL 2...- Part Number:
- 710-8M0075709
- Availability:
- In Stock - Ships same or next business day.
$67.25 $47.21 -
OEM MerCruiser Gear Lube Monitor Reservoir Bottle 806193A34 8M0075708
Mercury Marine / Quicksilver
$67.25 $47.21OEM Quicksilver/Mercury Gear Lube Reservoir Bottle 8M0075708 Nipple faces the left when looking at the grooved side of the bottle. Item Supersession Chain: RowClassPart NumberSS LevelDispDescription 1 8M0075708 00 ACT LUBE...- Part Number:
- 710-8M0075708
- Availability:
- In Stock - Ships same or next business day.
$67.25 $47.21
Engine Parts
PowerBoatSupply.com has all the premium-quality Mercruiser engine parts you need for an overhaul of your boat’s engine. The Mercruiser I/O and inboard engine generally last longer than its outboard cousin. But even with a longer lifespan, these engines will eventually need an overhaul. Find OEM 3.01 Mercruiser engine parts, including alternators, starter motors, and cool fuel kits. Use replacement parts to improve your engine's ignition and fuel system, whether it's diesel or gasoline.
You can get 1500 hours with an inboard engine and about 750 hours with outboard engines. However, taking apart the engine, identifying and replacing damaged parts, and cleaning all components before restoring it can improve power and longevity. Use quality 454 Mercruiser engine parts during an overhaul to increase the performance and lifespan of your boat.
Boat engine parts Mercruiser
We have all the Mercruiser 3.0 engine parts and accessories you need to service your engine, including replacement serpentine belts, distributor caps, circulating pumps, thermostat kits, gear lube monitor bottles, inline engine starters – and so much more!
Mercruiser engine parts kits
It is usually more efficient to work with complete kits when overhauling your Mercruiser engine. Why place multiple orders for individual parts when you can get the complete package of OEM replacement parts to refurbish your engine and get it running in peak condition? For example, an ignition sensor assembly kit contains all components that precisely fit together to improve your ignition system.
PowerBoatSupply.com has provided boat owners and marine mechanics with premium engine parts for over four decades. Our team is ready to use our knowledge and experience to help you find the right Mercruiser parts for your engine. Just ask if you have any questions about which is the right part to order. Buy with peace of mind knowing that we wouldn’t sell you a part that we weren’t confident in using in our own boats.