Small Engine Parts
Honda G400 Parts  
Find Honda G400 parts lookup by OEM part number in the G400 parts list below.  
Small Engine Parts                                             Parts Lookup                                             Honda Parts
Note. The following part numbers may or may not fit all G400 models as per illustrated parts list specifications.

Common parts list:
15721-890-010 TUBE, BREATHER
17210-890-505 ELEMENT, AIR CLEANER (Optional). Use up to Engine SN 1092589.
17210-890-505 ELEMENT, AIR CLEANER Use from Engine SN 1092590.
17218-890-505 PRI; FILTER (OUTER) Use from Engine SN 1092590.
14110-890-020 CAMSHAFT ASSY. Use up to Engine SN 1009163.
14110-890-030 CAMSHAFT ASSY. Use from Engine SN 1009164 to 1095189.
14110-890-040 CAMSHAFT ASSY. Use from Engine SN 1095190.
14711-890-000 VALVE, IN.
14721-ZA1-000 VALVE, EX. Use from Engine SN 1095190.
14721-890-000 VALVE, EX. Use up to Engine SN 1095189.
16010-883-015 GASKET SET Use up to Engine SN BB35C A.
16011-KCK-910 VALVE SET, FLOAT Use up to Engine SN BB35C A.
16011-382-004 VALVE SET, FLOAT (CARBURETOR NO.) Use up to Engine SN BB35C A.
16013-890-015 FLOAT SET (CARBURETOR NO.) Use up to Engine SN BB35C A.
16044-890-005 CHOKE SET (CARBURETOR NO.) Use up to Engine SN BB35C A.
16212-890-800 GASKET, INSULATOR Use up to Engine SN 1090965.
16212-890-800 GASKET, INSULATOR Use up to Engine SN 1090965.
16221-890-800 GASKET, CARBURETOR Use up to Engine SN 1090965.
16221-890-800 GASKET, CARBURETOR Use up to Engine SN 1090965.
16269-890-800 GASKET, AIR CLEANER Use up to Engine SN 1090965.
16269-890-800 GASKET, AIR CLEANER Use up to Engine SN 1090965.
16598-889-731 STAY, CHOKE CONTROL Use up to Engine SN 1090965.
16611-889-000 ROD, CHOKE CONTROL  Use up to Engine SN 1090965.   
16613-890-000 GROMMET, CHOKE ROD Use up to Engine SN 1090965.
99101-124-1020 JET, MAIN (#102) (CARBURETOR NO.) Use from Engine SN BB35C A to BB35C A.
16100-890-005 CARBURETOR ASSY. (BB35A A) (Optional). Use up to Engine SN 1059152.
16100-890-015 CARBURETOR ASSY. (BB35A B) (Optional). Use from Engine SN 1059153 to 1074849.
16100-890-075 CARBURETOR ASSY. (BB35C G) Use from Engine SN 1074850 to 1090965.
16100-890-075 CARBURETOR ASSY. (BB35C G) Use from Engine SN 1090966.
11300-890-721 COVER ASSY., CRANKCASE Use from Engine SN 1085860.
11381-890-850 GASKET, CASE COVER
13350-890-010 WEIGHT, BALANCER
13354-890-000 COVER, BALANCER
15620-890-000 CAP, OIL FILLER (YELLOW) (Optional).
13310-890-722 CRANKSHAFT
11210-822-010 COVER, OIL PAN HOLE
11211-822-306 GASKET, OIL PAN (Optional)
12100-890-325 CYLINDER (CRANKSHAFT P.T.O.) Use up to Engine SN 1095397
12100-890-335 CYLINDER (CRANKSHAFT P.T.O.) Use from Engine SN 1095398
12221-890-305 CYLINDER HEAD
12281-890-306 GASKET, CYLINDER HEAD
12281-891-610 GASKET, CYLINDER HEAD
15611-921-000 CAP, OIL (YELLOW) (Optional)
98076-54710 SPARK PLUG (B-4H) (NGK) (Optional)
98076-54716 SPARK PLUG (BR-4HS) (NGK) (Optional)
98076-54911 SPARK PLUG (BP-4HS-10) (NGK)
98076-54917 SPARK PLUG (BPR4HS-10) (NGK) (Optional)
98076-54917 SPARK PLUG (BPR4HS-10) (Optional)
98076-54919 SPARK PLUG (BP4HS-10)
28451-890-000 PULLEY, STARTER
31100-890-731 FLYWHEEL (C.D.I.)
17510-890-030ZA TANK, FUEL *NH31* (MCKINLEY WHITE)
17510-890-690ZA TANK, FUEL *NH31* (MCKINLEY WHITE) (Optional)
17516-890-000 FUEL TANK
17620-ZH7-023 CAP, FUEL FILLER (BLACK) Use from Engine SN 1085776
17620-402-010 CAP, FUEL FILLER (Optional). Use up to Engine SN 1021691
17620-402-010 CAP, FUEL FILLER Use from Engine SN 1021692 to 1085775
17631-329-003 GASKET, FUEL FILLER CAP (39X58X3)
17672-880-000 FILTER, FUEL
17673-893-000 HOLDER, FUEL FILTER (Optional). Use up to Engine SN 1015232.
17673-893-000 HOLDER, FUEL FILTER Use from Engine SN 1015233.
061A1-890-000 GASKET KIT
30580-890-731 MODULE, IGNITION CONTROL (CDI) (Optional). Use up to Engine SN 1016512.
30580-890-732 MODULE, IGNITION CONTROL (CDI) Use from Engine SN 1016513.
30586-889-730 IGNITION CONTROL MODULE (CDI)
30590-889-732 COIL ASSY., (Optional). Use up to Engine SN 1055468
30590-889-732 COIL ASSY., Use from Engine SN 1055469
30702-890-000 CLAMP, IGNITION WIRE
18310-890-600 MUFFLER (Optional). Use up to Engine SN 1017681.
18310-890-602 MUFFLER Use from Engine SN 1017682 to 1086381.
18310-890-696 MUFFLER (ARRESTER) Use from Engine SN 1086382.
18320-890-731 STAY, MUFFLER (Optional). Use up to Engine SN 1086381.
18320-890-731 STAY, MUFFLER Use from Engine SN 1086382.
18331-889-010 DEFLECTOR, MUFFLER (Optional). Use up to Engine SN 1062543.
18331-889-010 DEFLECTOR, MUFFLER Use from Engine SN 1062544.
13010-YA2-003 RING SET, PISTON (STD)
13010-890-010 RING SET, PISTON (STD)
13011-YA2-003 RING SET, PISTON (0.25) (Optional).
13012-YA2-003 RING SET, PISTON (0.50) (Optional).
13013-890-010 RING SET, PISTON (0.75) (Optional).
13101-890-010 PISTON (STD)
13102-890-010 PISTON (0.25) (Optional).
13103-890-010 PISTON (0.50) (Optional).
13104-890-010 PISTON (0.75) (Optional).
13111-890-000 PIN, PISTON
13200-890-000 ROD ASSY., CONNECTING Use up to Engine SN 1016894.
13200-890-010 ROD ASSY., CONNECTING Use from Engine SN 1016895 to 1041378.
13200-890-030 ROD ASSY., CONNECTING Use from Engine SN 1041379 to 1050927.
13200-890-040 ROD ASSY., CONNECTING Use from Engine SN 1050928 to 1086089.
13200-890-305 ROD ASSY., CONNECTING (UNDER SIZE) (Optional). Use up to Engine SN 1016894.
13200-890-315 ROD ASSY., CONNECTING (UNDER SIZE) (Optional). Use from Engine SN 1016895 to 1041378.
13200-890-335 ROD ASSY., CONNECTING (UNDER SIZE) (Optional). Use from Engine SN 1041379 to 1050927.
13200-890-345 ROD ASSY., CONNECTING (UNDER SIZE) (Optional). Use from Engine SN 1050928 to 1086089.
13200-890-070 ROD ASSY., CONNECTING Use from Engine SN
28400-890-030ZC STARTER ASSY., RECOIL *R8* (BRIGHT RED)
28400-890-030ZD STARTER ASSY., RECOIL *R8* (BRIGHT RED)
28420-890-010 REEL, STARTER (Optional).
28422-890-003 RATCHET (Optional).
28441-890-020 SPRING, FRICTION (Optional).
28442-890-000 SPRING, RETURN (Optional).
28461-883-000 GRIP, STARTER (Optional).
28462-890-000 ROPE, STARTER (Optional). Use up to Engine SN 1006330.
28462-890-010 ROPE, STARTER Use from Engine SN 1006331.
28466-890-010 HOLDER, ROPE (Optional).
28474-890-010 COVER, STARTER REEL (Optional)