Tohatsu MX15/18E2 (2016) Parts & Diagrams

OEM and aftermarket replacement parts for Tohatsu MX15/18E2. Scroll down for exploded parts diagrams (16), specifications, and maintenance reference.

Tohatsu MX15/18E2 (2016) Parts & Diagrams

🔎 Tohatsu MX15/18E2 Reference Library — Exploded parts diagrams (16 diagrams), specifications, common issues, and maintenance checklist.

The Tohatsu MX15/18E2 is a 2-Stroke outboard motor. A popular choice for small fishing boats, inflatable RIBs, and sailboat auxiliaries.

Quick Reference Specifications

Specification Value
Engine Type 2-Stroke
Horsepower 15 HP
Displacement 294
Bore x Stroke 60 x 52
Spark Plug (Type & Gap) NGK BP7HS-10
Engine Oil Capacity
Recommended Engine Oil TC-W3 Certified 2-Stroke Oil
Gear Case Oil Capacity 370 mL
Idle Speed (in gear) 800
Full Throttle RPM Range 5200-5800
Fuel Unleaded Gasoline, 87 Octane min.

Always verify specifications against your owner's manual for your specific serial number range.

Common Issues & Recommended Parts

Below are common maintenance scenarios for the Tohatsu MX15/18E2:

  • Water Pump / Overheating: If the tell-tale stream is weak or absent, the water pump impeller likely needs replacement. Inspect annually or every 100 hours. → Recommended: Water Pump Impeller Kit
  • Fuel System Issues / Hard Starting: Stale fuel and ethanol-related deposits are common in 2-stroke carbureted engines. Clean or rebuild carburetors and replace fuel lines if deteriorated. → Recommended: Carburetor Repair Kit, Fuel Line Assembly
  • Spark Plug Fouling: 2-stroke engines are prone to spark plug fouling from oil residue, especially at low RPM. Replace plugs at each annual service. → Recommended: OEM Spark Plugs
  • Gear Case Oil Leak: Check lower unit seals if gear oil appears milky (water contamination). Replace seals and gaskets during lower unit service. → Recommended: Lower Unit Seal Kit, Drain Plug Gaskets
  • Thermostat Failure: A stuck thermostat can cause overheating or poor warm-up. Replace if operating temperature is inconsistent. → Recommended: Thermostat Assembly

Parts Diagrams & OEM Part Numbers

Expand the sections below to view detailed exploded parts diagrams and find the exact OEM replacement components for your Tohatsu MX15/18E2.

ASSEMBLY・KIT PARTS (25 parts) ASSEMBLY・KIT PARTS
Ref OEM Part # Part Name
1 3NTQ87304-0 LOWER UNIT ASSY (UL)
2 3G2-66901-0 REVERSE LOCK SHIFT LEVER KIT
3 3B2-66322-1 * REVERSE LOCK
4 3G2-66324-0 * REVERSE LOCK SHAFT
5 945303-0500 * E-RING d=5
6 369-62434-0 * SPRING
7 3G2-66305-0 * REVERSE LOCK LINK
8 3G2-62434-0 * SPRING
9 350-66223-0 * PIN
10 951403-0535 * SPRING PIN
11 345-05224-0 * ROD SNAP 5-2.5
12 350-66337-0 * SPACER 6.1-12-12
13 350-66302-0 * REVERSE LOCK LINK JOINT
14 951503-0212 * SPLIT PIN 2-12
15 951503-1610 * SPLIT PIN 1.6-10
16 951403-0312 * SPRING PIN 3-12
19 3LDJ87090-5 ENGINE SHORT BLOCK KIT
20 922503-0410 * SCREW
21 3M3-01303-0 * ENGINE BASEMENT GASKET
22 9101E3-5652 * BOLT
23 3LD-65231-0 WATER PUMP KIT (CHROME PLATED)
24 3FS-65029-0 * GUIDE PLATE GASKET
25 951603-0800 * SNAP PIN d=8
26 3BJ-60001-0 * BOLT 8-31
27 3LD-00090-0 * NEEDLE ROLLER SET
BOTTOM COWL (37 parts) BOTTOM COWL
Ref OEM Part # Part Name
1 3NTQ67100-0 BOTTOM COWL
3 9101E3-5620 BOLT
4 3G2-67151-1 CHOKE ROD
5 350-67104-0 CHOKE ROD BUSHING
6 338Q67141-0 HOOK LEVER
7 338-67147-0 SEAL RING 13.8-22-3.7
8 350-67105-0 HOOK LEVER BUSHING 14-16.5-17.7
9 3C8-67146-0 WASHER 14-22-1
10 941403-1400 WAVE WASHER d=14
11 345-67142-1 COVER HOOK
12 910103-0612 BOLT
13 3C8-66308-0 WASHER 6-16-1.5
14 345-66226-0 GROMMET 17-3
17 346-67165-0 GROMMET 68-20-2.8
18 353-67162-0 GROMMET 41-14-3
19 3M2-66226-0 GROMMET 17-3
21 398-06830-0 STOP SWITCH ASSY
22 353-06821-0 * STOP SWITCH LANYARD ASSY
23 336-06973-0 CLAMP 6-9.5L
25 921503-5612 SCREW
26 3B2-70260-1 FUEL CONNECTOR (MALE)
27 332-70261-0 NUT 10-P1.25
28 336-70112-0 GASKET 10.2-16-0.5
29 98AB-50-185 HOSE
30 338-02215-0 CLIP φ10
31 350-63061-1 THROTTLE SHAFT
32 945303-0600 E-RING d=6
33 350-63063-0 THROTTLE SHAFT SUPPORT
34 910103-7630 BOLT
35 369-72025-0 SPARK PLUG DECAL (BP7HS10)
36 350-61012-2 DRIVE SHAFT HOUSING GASKET
37 9101E3-0518 BOLT
38 9401E3-0500 WASHER
39 9301E3-0500 NUT
40 9101E3-0416 BOLT
41 9401E3-0400 WASHER
42 9301E3-0400 NUT
BRACKET (71 parts) BRACKET
Ref OEM Part # Part Name
1 3V6Q62112-2 CLAMP BRACKET (R)
2 3V6Q62113-1 CLAMP BRACKET (L)
5 3V6-62117-0 DISTANCE PIECE
7 9401E3-0600 WASHER
8 930103-0600 NUT
9 3AC-62191-0 SWIVEL BRACKET SHAFT ASSY
10 346-62124-1 NYLON NUT 7/8-14
11 349-62126-0 BUSHING
12 346-62127-0 CAP NUT
13 350-62121-2 THRUST ROD
14 369-62122-2 THRUST ROD SPRING
15 3G2Q62310-1 SWIVEL BRACKET
16 344-67177-1 GREASE FITTING
17 345-62441-0 FRICTION PIECE
18 346-62421-1 FRICTION SPRING
19 9101E3-0830 BOLT
20 3LDQ62010-0 STEERING SHAFT ASSY
21 350-63064-0 UNIVERSAL PINION
22 350-62417-0 BUSHING 24-30-30
23 350-62423-0 THRUST PLATE (UPPER)
24 350-62415-0 O-RING 3.5-22
25 350-61301-0 RUBBER MOUNT (UPPER)
26 350-61337-0 DAMPER (UPPER)
27 398-61307-0 BOLT 10-45
28 940103-1000 WASHER
29 398-61308-2 WASHER 10.5-27-1.2
30 350-61302-0 RUBBER MOUNT (LOWER)
31 350-61336-0 DAMPER (LOWER)
32 350Q61402-1 MOUNT BRACKET (L)
33 350Q61401-0 MOUNT BRACKET (R)
34 9161E3-0885 BOLT
35 9161E3-0855 BOLT
37 3P0-66233-0 WASHER 8.1-16-1.5
38 338-60218-2 ANODE
39 910103-5620 BOLT
40 3G2Q62993-1 TILT STOPPER
41 951403-0540 SPRING PIN
42 350-62437-0 BUSHING 8.2-10-26.5
43 350-62439-1 SETTING PLATE
44 9101E3-5818 BOLT
45 3C8-62421-1 FRICTION SPRING
46 346-62438-0 SETTING PIECE
49 398-62396-1 GROUND L=130
50 910103-5612 BOLT
51 3A3-62396-1 GROUND L=110
52 3G2-66311-1 REVERSE LOCK LEVER
53 3AL-66333-0 REVERSE LOCK LEVER GRIP
54 346-66334-0 STOPPER
55 3R0-66308-0 WASHER 6-16-1.5
56 3AA-83719-0 WASHER 8.5-18-1.6
57 3AL-05254-0 SHOULDER BOLT 6-8
59 3AL-05212-0 BUSHING 8.1-20
60 3G2-66351-0 REVERSE LOCK (R)
61 3G2-66313-1 REVERSE LOCK ARM
62 3G2-66319-1 REVERSE LOCK SHAFT
63 945303-0600 E-RING d=6
64 3G2-66321-0 REVERSE LOCK ROD
65 951503-0212 SPLIT PIN 2-12
66 3G2-66312-1 REVERSE LOCK LINK
67 350-66315-0 REVERSE LOCK SPRING
68 3G2-66331-0 REVERSE LOCK SPRING (S)
69 910103-0885 BOLT
70 930103-0800 NUT
71 940103-0800 WASHER
72 3V1Q62105-0 CLAMP SCREW KIT
73 3V1Q62108-0 * CLAMP SCREW ASSY
74 3V1-62106-0 ** CLAMP SCREW
75 332Q62102-1 ** CLAMP SCREW HANDLE
76 3C8-62104-2 ** RIVET 3-22
77 332-62101-1 * CLAMP SCREW PAD
78 3C8-62107-0 * SHOULDER BOLT
CARBURETOR (30 parts) CARBURETOR
Ref OEM Part # Part Name
1 3LD-03100-1 CARBURETOR ASSY
2 3M2-04616-0 * MAIN JET (#116)
3 3M2-04560-0 * SLOW JET (#60)
4 3C8-03169-0 * PLUG
5 3LD-03147-0 FLOAT VALVE
6 3C8-03126-0 * FLOAT ARM PIN
7 3C8-03125-0 * FLOAT
8 921722-0410 * SCREW
9 3C8-03179-1 * STOP SCREW
10 3C8-03157-0 * SPRING
11 3G2-03156-0 * ADJUST SCREW
12 3G2-03120-0 * FLOAT CHAMBER
13 3C8-03121-0 * FLOAT CHAMBER GASKET
14 922503-0410 * SCREW
15 910306-0405 * BOLT
16 3C8-03193-0 * GASKET
17 3G2-03141-0 * MAIN NOZZLE
18 3C8-03181-0 * CARBURETOR COVER
19 3C8-03182-0 * CARBURETOR COVER GASKET
20 3C8-03180-0 * RUBBER PLUG
21 3M3-04004-0 PUMP COVER
22 3E3-64333-0 * PRE-COATED SCREW
23 3C8-04018-0 * PUMP COVER GASKET
24 350-04014-0 * CHECK VALVE
25 921703-0305 * SCREW
26 930203-0300 * NUT
27 350-04005-0 * PUMP DIAPHRAGM
28 3C8-04028-0 * PUMP BODY GASKET
29 3C8-04002-0 * PUMP BODY
30 3C8-02011-0 CARBURETOR GASKET
CYLINDER・CRANK CASE (61 parts) CYLINDER・CRANK CASE
Ref OEM Part # Part Name
1 3LDJ01100-2 CYL BLOCK & CRANKCASE ASSY
5 338-01131-1 * NIPPLE 4.8-5
6 393-01131-0 * NIPPLE 5.5-5
7 393-01137-0 * NIPPLE 5-4-5
10 345-01111-0 * DOWEL PIN 6-12
11 3LDJ01001-0 CYLINDER HEAD ASSY
12 350-01093-0 * WELCH PLUG
13 350-01005-1 CYLINDER HEAD GASKET
14 3LD-01012-0 CYLINDER HEAD BOLT
15 940103-0800 WASHER
16 350-01030-1 THERMOSTAT
17 3H6J01031-0 THERMOSTAT CAP
18 346-01032-0 THERMOSTAT CAP GASKET
19 9101E3-5630 BOLT
20 3P0-60218-0 ANODE
22 350J02300-1 EXHAUST COVER ASSY
23 9106E3-0808 * BOLT
24 332-60006-0 * GASKET 8.1-15-1
25 350J02302-1 EXHAUST COVER (INNER)
26 350-02305-2 EXHAUST COVER GASKET
27 350-02306-2 EXHAUST COVER GASKET
28 3NT-02319-0 BOLT 25mm
29 940103-0600 WASHER
32 98AL-40-030 HOSE
33 98AL-40-220 HOSE
34 3LC-01160-0 CHECK VALVE
35 3T5-01133-0 CLIP φ8
37 3T5-84398-0 BAND 104
38 98AB-30-270 HOSE
39 338-01133-0 CLIP φ7
41 350-05211-0 THROTTLE LIMITER ARM
42 350-05227-2 THROTTLE LIMITER SHAFT
43 941403-0800 WAVE WASHER d=8
44 350-05222-0 STARTER LOCK ROD
45 345-05223-1 ROD SNAP 3.5-2
46 350-63711-2 ADVANCER ARM
48 3KK-63104-0 STUD
49 345-63713-0 BUSHING 8-14-4
50 930403-0800 NYLON NUT 8-P1.25
51 334-66233-0 WASHER 8.1-16-1.5
52 921503-0525 SCREW
54 398-63717-1 ROD 5-65L
56 346-05234-0 ROD JOINT φ5
57 3B7-63733-0 ROD SNAP 5-2.5
58 353-83728-1 PIN
59 3AA-83719-0 WASHER 8.5-18-1.6
60 951603-0800 SNAP PIN d=8
61 930103-0600 NUT
62 350-63715-1 ROD 5-60L
63 930103-0500 NUT
64 3B7-05243-0 BALL JOINT CONNECTOR
67 398-06972-0 CLAMP 6.5-67P
68 9701-1-1010 SPARK PLUG (BP7HS10)
69 3M3-01303-0 ENGINE BASEMENT GASKET
70 3KK-01012-0 BOLT
71 9401E3-0800 WASHER
72 3B7-76142-1 GROUND CABLE L=120
73 910103-5612 BOLT
74 3P0-01143-0 ANODE PLUG
75 3T5-10046-0 O-RING 1.9-13
76 921503-0530 SCREW
DRIVE SHAFT HOUSING (12 parts) DRIVE SHAFT HOUSING
Ref OEM Part # Part Name
2 3LDQ61192-1 DRIVE SHAFT HOUSING (L)
3 345-01111-0 DOWEL PIN 6-12
4 350-65204-0 WATER PIPE AUXILIARY MOUNT
5 398-61207-0 IDLE EXHAUST PORT GROMMET
7 3LD-02311-0 EXHAUST PIPE
8 362-02312-2 EXHAUST PIPE GASKET
9 910103-5625 BOLT
10 350Q61110-0 EXTENSION HOUSING
11 3BJ-60001-0 BOLT 8-31
14 350-65120-0 WATER PIPE (UL)
15 350-65206-0 WATER PIPE SEAL (UPPER)
16 350-65205-0 COLLAR
FUEL TANK (17 parts) FUEL TANK
Ref OEM Part # Part Name
1 3B7-70200-5 PRIMER BULB ASSY
2 3C7-70220-1 * JOINT ASSY (INLET)
3 3C7-70224-1 * JOINT ASSY (OUTLET)
4 3C7-70211-1 * PRIMER BULB
5 3C7-70217-0 * CLAMP
6 98AB-70-700 * HOSE
7 98AB-701600 * HOSE
8 3B7-70280-1 * FUEL CONNECTOR MARK
9 3GF-70281-0 * FUEL CONNECTOR
10 3GF-70250-1 * FUEL CONNECTOR
11 332-70201-0 * CLAMP
12 3C7-70177-1 FUEL TANK ASSY 25L
13 3C7-70050-1 * FUEL GAUGE VENT CAP ASSY (25L)
14 3C7-70155-0 * PICK-UP ELBOW ASSY (25L)
15 3E0-70270-0 * QUICK-CONNECTOR (MALE)
16 3C7-70199-0 * O-RING
17 3C7-70113-0 * FILTER
GEAR CASE (59 parts) GEAR CASE
Ref OEM Part # Part Name
1 3LD-64325-0 GIRD PIPE ASSY
3 350-64326-1 GROMMET 26.1-11.5
4 3V9Q60000-1 GEAR CASE ASSY
5 350-60211-0 * ROLLER BEARING 16-24-20
6 332-60005-2 PLUG 8-8
7 332-60006-0 GASKET 8.1-15-1
9 398Q60100-2 PROPELLER SHAFT HOUSING ASSY
10 3BKQ60101-1 * PROPELLER SHAFT HOUSING
11 9601-0-6205 * BALL BEARING 6205
12 362-60211-0 * ROLLER BEARING 17-24-20
13 121-32071-0 * O-RING 2.4-59.6
14 346-65013-0 * OIL SEAL 17-30-9
15 3BJ-60108-0 PRE-COATED BOLT
17 910103-5620 BOLT
18 350-64010-0 BEVEL GEAR ASSY (A)
19 350-64020-0 BEVEL GEAR B
20 346-64027-1 NUT
21 362-64030-0 BEVEL GEAR C
22 350-64032-0 WASHER 17.1-22-1.5
23 362-64211-3 PROPELLER SHAFT
24 362-64215-0 CLUTCH
25 350-64218-0 PIN φ5-30
26 350-64219-0 SNAP
27 332-64221-0 SPRING
28 350-64222-1 SPRING RETAINER
29 350-64223-1 PUSH ROD
30 362-60206-1 WATER STRAINER
31 921503-0430 SCREW
32 930403-0400 NYLON NUT 4-P0.7
33 369-60206-0 WATER STRAINER
34 921803-0620 SCREW
35 3LD-65021-0 WATER PUMP IMPELLER
36 350-65022-0 KEY φ2-16
37 350-65016-1 PUMP CASE (UPPER)
38 350-65011-1 PUMP CASE LINER
39 350-65014-0 WATER PIPE SEAL (LOWER)
40 3BJ-65017-0 PUMP CASE (LOWER)
41 332-60223-0 OIL SEAL 13.8-26-9.5
43 3FS-65029-0 GUIDE PLATE GASKET
44 350-65025-0 WATER PUMP GUIDE PLATE
45 9101E3-5652 BOLT
46 346-64084-0 SHIM 35-41.9-0.5
47 350-64303-0 DRIVE SHAFT (UL)
48 9601-0-6302 BALL BEARING 6302
49 398-66014-0 CAM ROD (UL)
50 3C8-66011-0 CLUTCH CAM
51 951407-0312 SPRING PIN 3-12
52 398-66031-0 CAM ROD BUSHING
53 332-66021-0 O-RING 2.4-5.8
54 336-62415-0 O-RING 3.5-36
55 332-66033-0 STOPPER
56 910103-6512 BOLT
59 3BAB64524-1 PROPELLER ASSY (11.5")
60 3V9-87326-0 PROPELLER HARDWARE KIT
61 362-64231-0 * THRUST HOLDER
62 346-64124-5 * WASHER 12.5-32-2.5
63 346-64121-5 * PROPELLER NUT
64 951503-0322 * SPLIT PIN 3-22
67 3LD-60218-0 ANODE
INTAKE MANIFOLD (35 parts) INTAKE MANIFOLD
Ref OEM Part # Part Name
1 3M2J02010-1 INTAKE MANIFOLD ASSY
2 338-01131-1 * NIPPLE 4.8-5
3 350-02104-2 INTAKE MANIFOLD GASKET
4 350-02105-3 INTAKE MANIFOLD GASKET
5 3LD-02095-0 BOLT
6 3NT-02095-0 BOLT 35mm
7 3LD-63104-0 STUD
8 930103-0600 NUT
9 3MY-63104-0 STUD
11 3M2-03167-0 THROTTLE LEVER ASSY
12 3M2-03171-0 * THROTTLE ROLLER
13 350-03176-0 THROTTLE LEVER END
14 910903-0506 BOLT
15 350-03174-0 ROD
16 916103-0550 BOLT
17 940103-0500 WASHER
18 362-02100-1 REED VALVE ASSY
19 9215F1-0620 SCREW
20 916103-0680 BOLT
21 940103-0600 WASHER
22 3G2-67196-0 ROD SNAP 3.4-1.6
23 3AD-02230-0 FUEL FILTER ASSY
24 3AD-02237-0 * CUP
25 3AD-02235-0 * O-RING
26 3AD-02234-0 * FILTER
27 930103-0800 NUT
28 334-66233-0 WASHER 8.1-16-1.5
29 98AB-50-220 HOSE
30 338-02215-0 CLIP φ10
31 3G2-02411-0 INTAKE SILENCER
32 345-67117-0 * GROMMET 17-2.7
33 922553-0512 SCREW
34 3G2-67152-0 CHOKE LEVER
35 350-67154-0 PLASTIC RIVET 6.5
36 3G2-02414-1 INTAKE SILENCER GASKET
MAGNETO・ELECTRIC PARTS (34 parts) MAGNETO・ELECTRIC PARTS
Ref OEM Part # Part Name
1 350-00121-0 OIL SEAL 25-45-8
2 350-01401-0 MAGNETO BASEMENT
3 338-01403-0 O-RING 2-55.5
4 910121-6620 BOLT
5 3M3-06001-1 FLYWHEEL
7 3LD-06102-0 COIL PLATE ASSY
10 3G3-06021-1 * EXCITER COIL
11 921521-6525 * SCREW
13 350-06025-0 * HOLDER
14 921521-6406 SCREW
16 334-00131-0 KEY 19-7-5
17 931121-1600 NUT
18 334-00133-0 WASHER 17-30-1.6
20 346-63722-2 GUIDE PLATE
21 350-63723-0 SETTING RING
22 346-05228-1 BALL JOINT
23 921503-0525 SCREW
24 930103-0500 NUT
25 921503-6510 SCREW
26 3PR-06972-0 CLAMP 6.5-47.5P
27 921503-5510 SCREW
28 3LD-63718-0 THROTTLE CAM
29 910103-5514 BOLT
30 336-76091-0 LEAD WIRE BAND 100
32 3G2-06060-2 CD UNIT
33 3G2-06061-1 CD UNIT BRACKET
34 910103-6616 BOLT
35 3C8-66308-0 WASHER 6-16-1.5
37 3LD-06050-1 IGNITION COIL W/CAP
38 3LD-06921-0 * PLUG CAP
39 3M2-06926-0 * PLUG CAP TERMINAL
40 3T5-84398-0 * BAND 104
47 910103-7630 BOLT
49 940103-0600 WASHER
OPTIONAL PARTS・ACCESSORIES (2 parts) OPTIONAL PARTS・ACCESSORIES
Ref OEM Part # Part Name
1 3C8-72100-1 TOOL KIT
13 336-60007-0 FLUSHING PLUG
PISTON・CRANK SHAFT (29 parts) PISTON・CRANK SHAFT
Ref OEM Part # Part Name
1 350-00115-0 THRUST PLATE
2 350-00107-0 THRUST PLATE
6 3LD-00046-0 SMALL END BEARING WASHER
7 3LD-00069-0 CRANKSHAFT SUB-ASSY
8 350-00040-0 * CONNECTING ROD
9 3G4-00043-0 * ROLLER BEARING 20-26-16
10 3M2-00031-1 * CRANKSHAFT A
11 3LD-00032-0 * CRANKSHAFT B
12 350-00051-1 * LABYRINTH PACKING
13 951407-0308 * SPRING PIN 3-8
14 3LD-00033-0 * CRANKSHAFT C
15 350-00034-2 * CRANKSHAFT D
16 350-00062-0 * SEALING PLUG
17 350-00061-1 * CRANK PIN
19 9603-3-6305 BALL BEARING
20 346-00116-0 SPACER 25.2-34-1.6
21 945102-2500 C-RING
22 3LD-01291-0 CRANKCASE HEAD
23 3LD-00121-0 OIL SEAL 25-47-6
24 350-01215-1 OIL SEAL 12.8-25-7
25 338-01403-0 O-RING 2-55.5
31 3LD-87124-1 PISTON RING SET (0.5 O/S)
32 3LD-00014-0 * PISTON RING (0.5 O/S)
33 350-00014-0 * PISTON RING (0.5 O/S)
42 3LD-87131-0 PISTON REPAIR KIT (0.5 O/S)
43 3LD-00004-0 * PISTON (0.5 O/S)
44 350-00021-1 * PISTON PIN
45 350-00024-1 * PISTON PIN CLIP
46 3LD-00090-0 NEEDLE ROLLER SET
RECOIL STARTER (36 parts) RECOIL STARTER
Ref OEM Part # Part Name
1 3LD-05000-0 RECOIL STARTER ASSY
2 350-05105-1 * STARTER CASE
3 350-05104-1 * REEL ASSY
4 345-05003-1 * RATCHET
5 345-05135-1 * BUSHING 14.7-15.9-6
6 945303-0500 * E-RING d=5
7 346-67115-0 * WASHER 6.5-21-1
8 350-05123-0 * RETURN SPRING
9 350-05124-0 * RETURN SPRING
10 345-05004-1 * STARTER SPRING
11 951403-0316 * SPRING PIN 3-16
12 350-05132-0 * STARTER SHAFT
13 9101F4-0635 * BOLT
14 930103-0600 * NUT
15 940121-0600 * WASHER
16 941322-0600 * SPRING WASHER
17 338-05019-0 * STARTER HANDLE
18 350-05013-1 * STARTER ROPE φ5-1600
19 338-05131-0 * ROPE ANCHOR
20 350-05116-1 * SEALING PLATE
21a 3LD-05912-0 * SEAL
22 3KM-67503-0 STARTER SEAL
23 3PR-06972-0 CLAMP 6.5-47.5P
24 3M3-02319-0 BOLT 30mm
25 940103-0600 WASHER
26 921503-5430 SCREW
27 338-05255-0 COLLAR 4-6-21
28 338-05216-0 STARTER LOCK SPRING
29 338-05252-0 STARTER LOCK
30 350-05253-0 STARTER LOCK CAM
31 941403-0800 WAVE WASHER d=8
32 921503-7616 SCREW
33 3M2-05215-0 COLLAR 6.1-8-4
34 350-05217-0 STARTER LOCK ROD
35 345-05223-1 ROD SNAP 3.5-2
36 3NV-72181-0 CAUTION DECAL (B)
SHIFT (19 parts) SHIFT
Ref OEM Part # Part Name
1 350-66110-0 SHIFT LEVER
2 941403-1200 WAVE WASHER d=12
3 3K9-66137-0 OIL SEAL 14-20-4.5
4 350-66121-0 SHIFT LEVER STOPPER
6 940103-0600 WASHER
7 350-66115-0 SHIFT LEVER STOP ADJUST
8 951503-2522 SPLIT PIN 2.5-22
9 350-66112-0 SHIFT LEVER STOPPER
10 910103-0616 BOLT
11 941303-0600 SPRING WASHER
12 350-67101-0 BUSHING
13 350-66215-0 SHIFT ROD (L)
14 350-66241-0 SHIFT ROD JOINT
15 951403-0312 SPRING PIN 3-12
16 350-66225-0 SHIFT ROD LEVER
17 951503-2520 SPLIT PIN 2.5-20
18 350-66223-0 PIN
19 951503-1610 SPLIT PIN 1.6-10
20 3B7-67179-0 DRAIN PLUG (ENGINE BASEMENT)
TILLER HANDLE (20 parts) TILLER HANDLE
Ref OEM Part # Part Name
1 3NTQ63003-0 TILLER HANDLE ASSY
2 3NTQ63005-0 TILLER HANDLE SUB-ASSY
3 3NTQ63011-0 ** TILLER HANDLE
4 369-72019-1 ** THROTTLE DECAL
5 398-63053-0 ** SPACER
6 345-63048-0 ** THROTTLE SHAFT DAMPER
7 350-63046-0 ** BUSHING 8.4-10-11
8 3NT-63046-0 ** BUSHING
9 398-63012-0 ** GRIP
10 921803-0525 ** SCREW
11 951403-0310 ** SPRING PIN 3-10
12 3LD-63041-0 ** THROTTLE SHAFT
13 3V1-63035-1 ** FRICTION PIECE
14 3V1-63077-0 ** ADJUSTING NUT
15 3V1-63036-0 ** SPRING
16 910103-0625 ** BOLT
17 9101E3-5675 ** BOLT
18 930403-0600 ** NYLON NUT 6-P1.0
19 346-63201-3 * BOLT 9.7-11-12-8.5
20 3NT-63207-0 * COLLAR
TOP COWL (8 parts) TOP COWL
Ref OEM Part # Part Name
1a 3NTH67645-0 TOP COWL ASSY
2a 3NTH67640-0 * TOP COWL SUB-ASSY
4 930403-0600 ** NYLON NUT 6-P1.0
5 3C8-66308-0 ** WASHER 6-16-1.5
6 3NT-67501-0 ** TOP COWL SEAL
8 3C7-72180-3 * CAUTION DECAL (A)
11 3NTH67521-0 ** TILT HANDLE
12 3NT-87801-1 * DECAL SET (MX15E2)

100-Hour / Annual Service Checklist

Regular maintenance keeps your Tohatsu MX15/18E2 running reliably season after season. Most of these tasks can be performed with basic tools and the factory service manual.

  1. Replace water pump impeller and inspect wear plate
  2. Inspect and clean carburetor(s); check fuel mixture settings
  3. Replace spark plugs and check ignition timing
  4. Drain and refill lower unit gear oil; inspect for water contamination
  5. Inspect fuel lines, primer bulb, and fuel filter for deterioration
  6. Check and replace sacrificial anodes (zinc or aluminum)
  7. Inspect propeller for damage; check shaft seal and cotter pin
  8. Decarbonize exhaust ports and piston crown if needed
  9. Lubricate all grease points (steering, tilt tube, shift linkage)
  10. Inspect control cables and throttle/shift linkage for smooth operation
  • Pro Tip: Always flush the engine with fresh water after saltwater use — even a quick 10-minute flush significantly extends component life.
  • Pro Tip: Use fuel stabilizer in the tank before winter storage, and fog the cylinders to prevent internal corrosion during extended periods of non-use.

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