East Marine — Authorized Tohatsu Parts Dealer in South Florida

For outboard motor sales, service, and warranties, please contact the Tohatsu America Corporation in TX

1869 S. Dixie Hwy, Pompano Beach, FL 33060 Mon–Fri 9:00 AM–5:00 PM EST

3. CYLINDER HEAD & OIL PUMP

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MFS8C CYLINDER HEAD & OIL PUMP(1) CYLINDER HEAD COMPLETE(2) CYLINDER HEAD ASSY(3) INTAKE VALVE(4) EXHAUST VALVE(5) VALVE SPRING L=38.3(5) VALVE SPRING L=38.3(6) RETAINER(6) RETAINER(7) COTTER(7) COTTER(7) COTTER(7) COTTER(8) VALVE SPRING SEAT(8) VALVE SPRING SEAT(9) INTAKE VALVE STEM SEAL(10) EXHAUST VALVE STEM SEAL(11) OIL SEAL 18-35-8(12) CAMSHAFT ASSY(13) ROCKER ARM(13) ROCKER ARM(14) ADJUSTING SCREW(14) ADJUSTING SCREW(15) ADJUSTING NUT(15) ADJUSTING NUT(16) ROCKER ARM SHAFT(17) ROCKER SHAFT SPRING L=25(17) ROCKER SHAFT SPRING L=25(18) WASHER 13.2-21.7-2(18) WASHER 13.2-21.7-2(19) OIL PUMP ASSY(20) OIL PUMP GASKET(21) BOLT(21) BOLT(21) BOLT(22) CYLINDER HEAD GASKET(23) DOWEL PIN 6-12(23) DOWEL PIN 6-12(24) CYLINDER HEAD BOLT 8-1.25-50-12.9(24) CYLINDER HEAD BOLT 8-1.25-50-12.9(24) CYLINDER HEAD BOLT 8-1.25-50-12.9(24) CYLINDER HEAD BOLT 8-1.25-50-12.9(24) CYLINDER HEAD BOLT 8-1.25-50-12.9(24) CYLINDER HEAD BOLT 8-1.25-50-12.9(25) WASHER(25) WASHER(25) WASHER(25) WASHER(25) WASHER(25) WASHER(26) BOLT 6-1.0-25-A2-70(26) BOLT 6-1.0-25-A2-70(26) BOLT 6-1.0-25-A2-70(27) WASHER(27) WASHER(27) WASHER(28) CYLINDER HEAD COVER ASSY(29) BREATHER CHAMBER COVER(30) SCREW(30) SCREW(30) SCREW(30) SCREW(31) CYLINDER HEAD COVER GASKET(32) BOLT(32) BOLT(32) BOLT(32) BOLT(33) OIL FILLER CAP(34) O-RING 3.1-24.4(35) SPARK PLUG (DCPR6E)

Displaying 1 to 35 (of 35 products)

Parts List

2025 :: 8 HP :: 4 Stroke Tohatsu MFS8C (EFI) :: CYLINDER HEAD & OIL PUMP

Pic. Ref. Part Description Tohatsu
Part Number
Original
Part Number
Remarks Price Quantity
Needed
Order Quantity
(1) CYLINDER HEAD COMPLETE 31HB010000 31HB01000-0 $810.93 1
(2) CYLINDER HEAD ASSY 31HB010010 31HB01001-0 $345.55 1
(3) INTAKE VALVE 3V1072010M 3V1-07201-0 $16.91 2
(4) EXHAUST VALVE 3V1072020M 3V1-07202-0 $20.01 2
(5) VALVE SPRING (NEW) 3AA072030M 3AA-07203-0 $0.00 4 Sold Out View More Details
(6) Retainer 3GT079210M 3GT079210M $5.67 4 Sold Out View More Details
(7) COTTER 3KY079230M 3KY079230M $2.65 8 Sold Out View More Details
(8) VALVE SPRING SEAT 3V1072050M 3V1-07205-0 $1.09 4
(9) INTAKE VALVE STEM SEAL 3R3072040M 3R3-07204-0 $2.77 2
(10) EXHAUST VALVE STEM SEAL 3R3072060M 3R3-07206-0 $2.77 2
(11) OIL SEAL 18-35-8 3H8070250M 3H8-07025-0 $5.82 1
(12) CAMSHAFT ASSY 31H078100M 31H-07810-0 $144.35 1
(13) ROCKER ARM 3VS079350M 3VS-07935-0 $0.00 4 Sold Out View More Details
(14) ADJUSTING SCREW 3R0072380M 3R0-07238-0 $2.94 4
(15) ADJUSTING NUT 3H8072370M 3H8-07237-0 $2.07 4
(16) ROCKER ARM SHAFT 3RS079200M 3RS079200M $13.89 1
(17) ROCKER SHAFT SPRING 3AA072250M 3AA-07225-0 $0.00 2 Sold Out View More Details
(18) WASHER 13.2-21.7-2 (NEW) 3R3072270M 3R3-07227-0 $1.02 2
(19) OIL PUMP 3V1076000M 3V1-07600-0 $58.54 1 Sold Out View More Details
(20) OIL PUMP GASKET 31H076530M 31H-07653-0 $2.17 1
(21) BOLT 9101035635M 910103-5635 Superseded to 9101E35635M $2.10 3
(22) CYLINDER HEAD GASKET 31H010050M 31H-01005-0 $17.51 1
(23) DOWEL PIN 6-12 345011110M 345-01111-0 $1.39 2
(24) CYLINDER HEAD BOLT 8-1.25-50-12.9 31N010120M 31N-01012-0 $1.75 6
(25) WASHER 9402210800M 940221-0800 $0.00 6 Sold Out View More Details
(26) BOLT 3KK-02319-0 3KK-02319-0 $0.00 3 Sold Out View More Details
(27) WASHER 9401030600M 940103-0600 $0.75 3
(28) CYLINDER HEAD COVER ASSY 31HB010200 31HB01020-0 $55.98 1
(29) BREATHER CHAMBER COVER 31H-07731-0 31H-07731-0 $0.00 1 Sold Out View More Details
(30) SCREW 9215210408M 921521-0408 $0.83 4
(31) CYLINDER HEAD COVER GASKET 3V1010240M 3V1-01024-0 $5.96 1
(32) BOLT 9101035625M 910103-5625 Superseded to 9101E35625M $1.57 4
(33) OIL FILLER CAP 3R0710151M 3R0-71015-0 $3.54 1
(34) O-RING 3.1-24.4 3R0074220M 3R0-07422-0 $1.39 1 Sold Out View More Details
(35) SPARK PLUG 970111103M 9701-1-1103 Superseded to 970101103M $6.96 2
Displaying 1 to 35 (of 35 products)