Mercruiser 175 Parts

We sell replacement and genuine Mercruiser 175 engine parts and spares for engines manufactured between the years of 1987 - 1987. Our extensive range of 175 parts includes Service Items, Lubricants, Cooling System, Exhaust Manifold Kits, Fuel System (Engine), Optional Fuel System Components, Ignition System, Electrical System, Repair Items, Repair Kits, Chemicals, Tools & Manuals, Accessories

For more information you can contact us through sales@keypart.com. Call us now on +44(0)1923 276000 and one of our team will be able to help with all queries about 175 Petrol Engine Parts

Service Items

Oil Filter - Replacement
Model: 18-7879-1
Oil Filter - Replacement
  In stock
£9.59 inc VAT £7.99 ex VAT
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Oil Filter - Genuine - V6
Model: 35-883702Q
Oil Filter - Genuine - V6
  In stock
£15.73 inc VAT £13.11 ex VAT
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Rocker Cover Gasket - Replacement
Model: 18-0311
Rocker Cover Gasket - Replacement
  In stock
£42.62 inc VAT £35.52 ex VAT
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Cylinder Head Gasket - GM 262 CID - Replacement
Model: 18-3879
Cylinder Head Gasket - GM 262 CID - Replacement
  In stock
£51.37 inc VAT £42.81 ex VAT
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Intake Manifold Gasket Kit - GM 262 CID - Replacement
Model: 18-4408
Intake Manifold Gasket Kit - GM 262 CID - Replacement
  In stock
£41.74 inc VAT £34.78 ex VAT
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Valve Stem Oil Seal Intake- Replacement
Model: 18-4024
Valve Stem Oil Seal Intake- Replacement
  In stock
£8.74 inc VAT £7.28 ex VAT
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Valve Stem Oil Seal - Replacement
Model: 18-0518
Valve Stem Oil Seal - Replacement
  In stock
£2.77 inc VAT £2.31 ex VAT
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Drive Belt - Replacement
Model: 18-15520
Drive Belt - Replacement
  In stock
£46.44 inc VAT £38.70 ex VAT
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Lubricants

Engine oil capacity is approximately 4.2 Litres
25W/40 Engine Oil 4.7 Litre
Model: 18-9400-4
25W/40 Engine Oil 4.7 Litre
  In stock
£48.41 inc VAT £40.34 ex VAT
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25W/40 Synthetic Blend Engine Oil 4.7 litre
Model: 18-9440-4
25W/40 Synthetic Blend Engine Oil 4.7 litre
  In stock
£56.09 inc VAT £46.74 ex VAT
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25W/40 Synthetic Blend Oil 4L - Genuine
Model: 92-8M0086227
25W/40 Synthetic Blend Oil 4L - Genuine
  In stock
£55.18 inc VAT £45.98 ex VAT
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Power Trim & Tilt Fluid 240ml
Model: 92-858074QB1
Power Trim & Tilt Fluid 240ml
  In stock
£10.12 inc VAT £8.43 ex VAT
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Oil Change Pump Kit (Universal)
Model: 33799-0000
Oil Change Pump Kit (Universal)
  In stock
£87.38 inc VAT £72.82 ex VAT
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Cooling System

Thermostat Kit 142 deg
Model: 18-3668
Thermostat Kit 142 deg
  In stock
£44.89 inc VAT £37.41 ex VAT
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Circulation Pump Assembly - GM 229/262/305/350
Model: 18-3599-2
Circulation Pump Assembly - GM 229/262/305/350
  In stock
£108.00 inc VAT £90.00 ex VAT
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Drain Tap Assembly - 1/4″ - Replacement
Model: 18-4218
Drain Tap Assembly - 1/4" - Replacement
  In stock
£7.04 inc VAT £5.87 ex VAT
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Drive Belt - Replacement
Model: 18-15440
Drive Belt - Replacement
  In stock
£37.74 inc VAT £31.45 ex VAT
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High Quality V6 Exhaust Manifold Kit (with Gaskets) Replacement
Model: 18-1952-1
High Quality V6 Exhaust Manifold Kit (with Gaskets) Replacement
  In stock
£210.00 inc VAT £175.00 ex VAT
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Exhaust Riser 4″ OD (2 required per engine) 7-deg Merc V6/V8 - 4″ OD
Model: 18-1976-2
Exhaust Riser 4" OD (2 required per engine) 7-deg Merc V6/V8 - 4" OD
  In stock
£210.00 inc VAT £175.00 ex VAT
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3″ Spacer Kit Merc Centre Rise Manifold V6/V8
Model: 18-1908K
3" Spacer Kit Merc Centre Rise Manifold V6/V8
  In stock
£438.91 inc VAT £365.76 ex VAT
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Upper Exhaust Riser to Downpipe Bellows 4″ ID - Replacement
Model: 18-2748
Upper Exhaust Riser to Downpipe Bellows 4" ID - Replacement
  In stock
£92.66 inc VAT £77.22 ex VAT
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Lower Exhaust Riser to Downpipe Bellows 4″ ID - Replacement
Model: 18-2746
Lower Exhaust Riser to Downpipe Bellows 4" ID - Replacement
  In stock
£78.64 inc VAT £65.53 ex VAT
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Exhaust Riser 3″ OD - V6/V8 Merc USE WITH AP5500
Model: 18-1970
Exhaust Riser 3" OD - V6/V8 Merc USE WITH AP5500
  In stock
£180.00 inc VAT £150.00 ex VAT
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Upper Exhaust Riser to Downpipe Bellows 3″ to 4″ ID
Model: 18-2762
Upper Exhaust Riser to Downpipe Bellows 3" to 4" ID
  In stock
£73.42 inc VAT £61.18 ex VAT
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Lower Exhaust Riser to Downpipe Bellows 3″ ID
Model: 18-2761
Lower Exhaust Riser to Downpipe Bellows 3" ID
  In stock
£85.16 inc VAT £70.97 ex VAT
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Exhaust Manifold Kits

V6 Complete Manifold Set with 4″ Risers
Model: KP-Manifold-Set-7
V6 Complete Manifold Set with 4" Risers
  In stock
£750.00 inc VAT £625.00 ex VAT
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3″ Spacer Kit Merc Centre Rise Manifold V6/V8
Model: 18-1908K
3" Spacer Kit Merc Centre Rise Manifold V6/V8
  In stock
£438.91 inc VAT £365.76 ex VAT
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Fuel System (Engine)

10-Micron Fuel Filter - 100mm (4.00″) - Replacement
Model: 18-7944
10-Micron Fuel Filter - 100mm (4.00") - Replacement
  Special order item – expected 2-4 days
£18.05 inc VAT £15.04 ex VAT
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Fuel Filter
Model: 18-7945
Fuel Filter
  In stock
£18.05 inc VAT £15.04 ex VAT
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Fuel Filter - Genuine
Model: 35-802893Q01
Fuel Filter - Genuine
  In stock
£23.84 inc VAT £19.87 ex VAT
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Carburettor Repair Kit - Mercarb 2BBL
Model: 18-7098-1
Carburettor Repair Kit - Mercarb 2BBL
  In stock
£91.50 inc VAT £76.25 ex VAT
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Carburettor Repair Kit - Rochester 4BBL - Replacement
Model: 18-7095
Carburettor Repair Kit - Rochester 4BBL - Replacement
  In stock
£37.49 inc VAT £31.24 ex VAT
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Lift Pump Filter Kit - Replacement
Model: 18-7784
Lift Pump Filter Kit - Replacement
  In stock
£28.24 inc VAT £23.53 ex VAT
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Lift Pump Filter Kit - Genuine
Model: 35-8M0046752
Lift Pump Filter Kit - Genuine
  In stock
£47.58 inc VAT £39.65 ex VAT
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Fuel Feed Pump - Replacement - Merc
Model: 18-7284
Fuel Feed Pump - Replacement - Merc
  In stock
£149.81 inc VAT £124.84 ex VAT
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Quickstor Fuel Stabiliser - 355ml (12oz) - Genuine
Model: 92-8M0079745
Quickstor Fuel Stabiliser - 355ml (12oz) - Genuine
  In stock
£22.82 inc VAT £19.02 ex VAT
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Optional Fuel System Components

For additional types of Fuel Filters & Elements, please visit the Racor & Separ sections of our Website. These can be found under the "Accessories" heading on our Home Page.
Fuel Filter Kit - 1/4″ AL - (Short Filter)
Model: 18-7848-1
Fuel Filter Kit - 1/4" AL - (Short Filter)
  In stock
£48.00 inc VAT £40.00 ex VAT
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Barbed Hose Tail for 3/8″ ID Hose for Fuel Filter Assembly - Straight
Model: 18-8074
Barbed Hose Tail for 3/8" ID Hose for Fuel Filter Assembly - Straight
  In stock
£7.20 inc VAT £6.00 ex VAT
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Barbed Hose Tail for 3/8″ ID Hose for Fuel Filter Assembly - 90 Deg
Model: 18-8067
Barbed Hose Tail for 3/8" ID Hose for Fuel Filter Assembly - 90 Deg
  In stock
£9.60 inc VAT £8.00 ex VAT
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10-Micron Fuel Filter - 100mm (4.00″) - Replacement
Model: 18-7944
10-Micron Fuel Filter - 100mm (4.00") - Replacement
  Special order item – expected 2-4 days
£18.05 inc VAT £15.04 ex VAT
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Fuel Filter
Model: 18-7945
Fuel Filter
  In stock
£18.05 inc VAT £15.04 ex VAT
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Fuel Filter - Genuine
Model: 35-802893Q01
Fuel Filter - Genuine
  In stock
£23.84 inc VAT £19.87 ex VAT
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Ignition System

Spark Plug
Model: BR6FS
Spark Plug
  In stock
£4.50 inc VAT £3.75 ex VAT
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Distributor Cap - Thunderbolt - V6 - Replacement
Model: 18-5396
Distributor Cap - Thunderbolt - V6 - Replacement
  In stock
£48.32 inc VAT £40.27 ex VAT
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V6 Rotor/Trigger Assembly - Thunderbolt - V6
Model: 18-5432
V6 Rotor/Trigger Assembly - Thunderbolt - V6
  In stock
£13.85 inc VAT £11.54 ex VAT
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Distributor Ignition Sensor - Thunderbolt - Nut Connectors
Model: 18-5116-1
Distributor Ignition Sensor - Thunderbolt - Nut Connectors
  In stock
£90.48 inc VAT £75.40 ex VAT
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Ignition Coil - Replacement
Model: 18-5438
Ignition Coil - Replacement
  In stock
£78.41 inc VAT £65.34 ex VAT
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H T Lead Set - V6 Thunderbolt
Model: 18-8810-1
H T Lead Set - V6 Thunderbolt
  In stock
£78.80 inc VAT £65.67 ex VAT
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V6 Distributor Thunderbolt IV
Model: 18-5471
V6 Distributor Thunderbolt IV
  In stock
£427.32 inc VAT £356.10 ex VAT
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HT Lead Wire Separator Kit - Blue
Model: 18-28150
HT Lead Wire Separator Kit - Blue
  In stock
£10.80 inc VAT £9.00 ex VAT
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HT Lead Wire Separator Kit - Black
Model: 18-28151
HT Lead Wire Separator Kit - Black
  In stock
£10.80 inc VAT £9.00 ex VAT
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Electrical System

Starter Motor Assembly - Offset Bolt Pattern - Replacement
Model: 18-6275-1
Starter Motor Assembly - Offset Bolt Pattern - Replacement
  In stock
£180.00 inc VAT £150.00 ex VAT
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Mando 55amp Alternator - Replacement
Model: 18-5966
Mando 55amp Alternator - Replacement
  In stock
£228.00 inc VAT £190.00 ex VAT
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Solenoid Kit - Flat Bracket
Model: 18-5816
Solenoid Kit - Flat Bracket
  In stock
£36.37 inc VAT £30.31 ex VAT
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Temperature Sender 3/8″-18 - Spanner Size 11/16″ - 1-1/2″ Long
Model: 18-5897
Temperature Sender 3/8"-18 - Spanner Size 11/16" - 1-1/2" Long
  In stock
£41.21 inc VAT £34.34 ex VAT
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Temperature Sender 1/2″-14 - Spanner Size 7/8″ - 1-7/8″ Long
Model: 18-5898
Temperature Sender 1/2"-14 - Spanner Size 7/8" - 1-7/8" Long
  In stock
£43.09 inc VAT £35.91 ex VAT
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Oil Pressure Sender - Replacement (Gauge)
Model: 18-5899
Oil Pressure Sender - Replacement (Gauge)
  In stock
£63.71 inc VAT £53.09 ex VAT
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50 Amp Reset Fuse Unit - Replacement, Circuit Breaker
Model: 3854164-R
50 Amp Reset Fuse Unit - Replacement, Circuit Breaker
  In stock
£107.64 inc VAT £89.70 ex VAT
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Shift Plate Kit - Alpha Spec - Genuine
Model: 864363A1
Shift Plate Kit - Alpha Spec - Genuine
  Special order item – expected 2-4 days
£216.72 inc VAT £180.60 ex VAT
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Stop Switch Lanyard - Genuine
Model: 8M0164890
Stop Switch Lanyard - Genuine
  In stock
£19.76 inc VAT £16.47 ex VAT
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Oil Pressure Switch - Genuine
Model: 87-805605A1
Oil Pressure Switch - Genuine
  Special order item – expected 2-4 days
£47.16 inc VAT £39.30 ex VAT
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Temp. Switch - Alarm - Genuine
Model: 48952
Temp. Switch - Alarm - Genuine
  Special order item – expected 2-4 days
£147.29 inc VAT £122.74 ex VAT
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Repair Items

Rear Engine Mount - Replacement
Model: 18-2193
Rear Engine Mount - Replacement
  In stock
£72.10 inc VAT £60.08 ex VAT
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Rear Engine Mount Bolt Kit - Replacement
Model: 18-2141
Rear Engine Mount Bolt Kit - Replacement
  In stock
£31.32 inc VAT £26.10 ex VAT
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Timing Cover with Seal - GM V6 & V8
Model: 3853194
Timing Cover with Seal - GM V6 & V8
  In stock
£99.64 inc VAT £83.03 ex VAT
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Timing Cover to Block Gasket - Replacement
Model: 18-0976
Timing Cover to Block Gasket - Replacement
  In stock
£6.82 inc VAT £5.68 ex VAT
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Front Crankshaft Seal - Replacement
Model: 18-1213
Front Crankshaft Seal - Replacement
  In stock
£44.59 inc VAT £37.16 ex VAT
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Power Steering Pump Assy - Replacement
Model: 18-7508
Power Steering Pump Assy - Replacement
  In stock
£546.00 inc VAT £455.00 ex VAT
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Oil Pan V6 (1 Piece Seal) - Replacement
Model: 18-0616
Oil Pan V6 (1 Piece Seal) - Replacement
  In stock
£230.94 inc VAT £192.45 ex VAT
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Sump Gasket - One Piece - V6 - Replacement
Model: 18-0405
Sump Gasket - One Piece - V6 - Replacement
  In stock
£68.87 inc VAT £57.39 ex VAT
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Chemicals

Please note: It is NOT possible to ship most liquids by air. Aerosols can ONLY be purchased by customers in England, Scotland and Wales.
Quicksilver Powertune 12oz (340g) Aerosol
Model: 92-8M0121969
Quicksilver Powertune 12oz (340g) Aerosol
  In stock
£20.75 inc VAT £17.29 ex VAT
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Fogging Oil Aerosol - 12 oz (for use when laying up)
Model: 18-9550-0
Fogging Oil Aerosol - 12 oz (for use when laying up)
  In stock
£17.88 inc VAT £14.90 ex VAT
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Black Touch-up Paint 10ml
Model: 20.052
Black Touch-up Paint 10ml
  In stock
£4.20 inc VAT £3.50 ex VAT
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Black Aerosol Spray 400ml - Merc
Model: 40.052
Black Aerosol Spray 400ml - Merc
  In stock
£14.40 inc VAT £12.00 ex VAT
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Loctite Threadlock 10ml
Model: LOCTITE-243-10ML
Loctite Threadlock 10ml
  In stock
£17.40 inc VAT £14.50 ex VAT
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Loctite Threadlock 50ml
Model: LOCTITE-243-50ML
Loctite Threadlock 50ml
  In stock
£60.00 inc VAT £50.00 ex VAT
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SA-90 Industrial Strength Adhesive - Aerosol 500ml
Model: ACT1847
SA-90 Industrial Strength Adhesive - Aerosol 500ml
  In stock
£14.40 inc VAT £12.00 ex VAT
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AC-90 Moisture Displacement & Lubricant - Aerosol - 500ml
Model: ACT1839
AC-90 Moisture Displacement & Lubricant - Aerosol - 500ml
  In stock
£10.79 inc VAT £8.99 ex VAT
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Quickstor Fuel Stabiliser - 355ml (12oz) - Genuine
Model: 92-8M0079745
Quickstor Fuel Stabiliser - 355ml (12oz) - Genuine
  In stock
£22.82 inc VAT £19.02 ex VAT
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TF-90 Fast Dry Cleaning Solvent + Degreaser (500ml Aerosol)
Model: ACT1848
TF-90 Fast Dry Cleaning Solvent + Degreaser (500ml Aerosol)
  In stock
£10.54 inc VAT £8.78 ex VAT
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Fogging Oil Spray (12oz-340g) - Genuine
Model: 92-8M0121972
Fogging Oil Spray (12oz-340g) - Genuine
  In stock
£23.63 inc VAT £19.69 ex VAT
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Tools & Manuals

Engine & Sterndrive Workshop Manual 1964-1992 - Merc
Model: 18-03200
Engine & Sterndrive Workshop Manual 1964-1992 - Merc
  In stock
£43.20 inc VAT £36.00 ex VAT
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Oil Change Pump Kit (Universal)
Model: 33799-0000
Oil Change Pump Kit (Universal)
  In stock
£87.38 inc VAT £72.82 ex VAT
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Motor Flusher - Single Feed
Model: 18-9010
Motor Flusher - Single Feed
  In stock
£24.00 inc VAT £20.00 ex VAT
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Motor Flusher - Dual Feed - Round Cups
Model: 18-8997
Motor Flusher - Dual Feed - Round Cups
  In stock
£24.00 inc VAT £20.00 ex VAT
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Motor Flusher - Dual Feed - Rectangular Cups
Model: 18-8999
Motor Flusher - Dual Feed - Rectangular Cups
  In stock
£24.00 inc VAT £20.00 ex VAT
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Accessories

Safety Switch - Coiled Lanyard
Model: MP40970-1
Safety Switch - Coiled Lanyard
  In stock
£31.20 inc VAT £26.00 ex VAT
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Battery Master Switch - Sierra Marine Works
Model: UN77310
Battery Master Switch - Sierra Marine Works
  In stock
£20.40 inc VAT £17.00 ex VAT
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175 Petrol Engine Parts