Yanmar parts catalogue / 23897-030002 PLUG G3/8,HEX.

23897-030002 PLUG G3/8,HEX. — YANMAR

Yanmar 23897-030002 PLUG G3/8,HEX. — position on the assembly diagram
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The part position is highlighted in red on the diagram
  • Part number: 23897-030002
  • Manufacturer: Yanmar
  • Name: PLUG G3/8,HEX.

The diagram shows the assembly “Breather” of the Yanmar 4HAL-N(S01) engine.

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Where part 23897-030002 is used

Yanmar part 23897-030002 is used in 124 engine models. Assemblies: suction manifold, lub.oil cooler, lub.oil pipe(out side) and 135 more.

Engine assemblyDiagram pos.QtyEngine modelsCatalogue notes
Suction manifold 10 1
Air cooler 38 1
Air cleaner 31 1
Lub. oil C00LER 21 1
Cylinder block 11 2
NO.1 fuel strainer(32A/40A) 11 2
Fuel main pipe & accumulator 2 1
Fuel press.regulating valve(hfo) 17 1
Fuel press.regulating valve(hfo) 17-1 2
  • Interchangeability: quantity in the assembly changed
Fuel press.regulating valve(mdo) 17-1 2
  • Interchangeability: quantity in the assembly changed
Fuel press.regulating valve(mdo) 17 1
Fuel inlet pipe(hfo) 16 1
Breather 6 1
Air cooler 44 1
Cooling water pipe 15 1
Cooling water pipe 31 1
Exhaust manifold 8 1
Cooling water pipe 6 1
Lub.oil cooler 12 1
Lub.oil pipe(out side) 30-1 1
  • Interchangeability: old and new parts are interchangeable
  • Applies from: date 1993.05
Air duct b(a/c YPC190-CYLINDER)(t/c ofw.side) 21 3
Fuel strainer 8 1
L.o.pressuer regulating valve 14 1
Air duct b(a/c YPC190-CYLINDER)(t/c fw.side) 20 3
Lub. oil pipe(out side) 30 1
Lub. oil cooler(non-priming) 12-1 2
  • Part superseded, not shown on the diagram
  • Interchangeability: new part number replaces the old one, not vice versa
  • Applies from: date 1993.05
Lub. oil cooler 6 2
L.o.pipe(pump inlet/pump-b&k strainer)(t/c fw.side) 29 1
L.o.cooler by-pass pipe(with centrifugal by-pass) 19 3
  • Interchangeability: part is discontinued
L.o.cooler by-pass pipe(with centrifugal by-pass) 9 3
L.o.cooler by-pass pipe(without centrifugal by-pass) 9 3
Lub.oil cooler(aux.engine) 46 2
L.o.cooler by-pass pipe(without centrifugal by-pass) 19 3
  • Interchangeability: part is discontinued
L.o.pipe(pump inlet/pump-b&k strainer)(t/c ofw.side) 29 1
L.o.pipe(cmb.-check v.-pump,l.o.sump-cmb.) 7-1 1
  • Interchangeability: new part number replaces the old one, not vice versa
L.o.press.regulating valve 37 1
Lub.oil pipe(out side) 29 1
Suction manifold 11 3
Lub.oil pipe(out side) 14 1
Cooling water collecting pipe 12 2
C.w.pipe(a/c heater in/out)(t/c fw.side) 13 2
L.o.pipe (l.o.cooler in/out) 5 1
L.o.pipe (l.o.cooler in/out) 11 2
Gears housing & rear(over 28 1
Gears housing & rear cover 20 1
C.w.pipe(xr pump-cyl.)(t/c fw.side) 22 1
  • Interchangeability: additional part
Cooling water system 15 2
Cooling water cover 15 1
Lub.oil cooler 21-1 1
  • Interchangeability: old and new parts are interchangeable
Drain plug(common-bed) 1-1 1
  • Interchangeability: new part number replaces the old one, not vice versa
Breather 7 1
  • Interchangeability: part is discontinued
Fuel strainer(NO.1) 8 2
Suction manifold 12 6
Cooling water pipe(c.w.pump-lub.oil cooler) 41 1
Thermostat case(separate type radiator spec) 7 2
Lub.oil pipe(regulating valve inlet) 5 2
Thermostat case(eng.-installed rad./without rad.spec) 5 2
Gear housing 10 2
Cylinder block 50 1
  • Interchangeability: additional part
  • Applies from: date 2004.05
Cooling water pipe(c.w.pump-lub.oil cooler) 40 1
Thermostat & c.w.pipe(rad.in) 3-1 1
  • Interchangeability: quantity in the assembly changed
  • Applies from: date 2003.03
Cover (by-pass boss) 4 1
  • Interchangeability: part is discontinued
  • Applies from: date 2004.05
  • AY20L-ET: OPTIONAL AY20L-PPR & EP: STANDARD EQUIPED
Thermostat & c.w.pipe(rad.in) 3 2
Cylinder block 29 10
Lub.oil cooler(aux.engine) 51 2
  • Interchangeability: additional part
Cooling water pipe(block inlet) 7 1
C.w.pipe(c.w.pump inlet)(eng.-installed radiator spec) 21 1
Air duct b(a/c heater YPC190-H75-CYL.)(t/c ofw.side) 48 3
Cooling  water pipe 73 1
Cooling water pipe(collecting pipe outlet)(a-bank) 12 1
Air duct b(a/c heater YPC190-H75-CYL.)(t/c fw.side) 46 3
C.w.pipe(c.w.pump inlet)(without radiator spec) 15 1
Air cleaner & muffler 20 1
Air cleaner & muffler 21 1
Exhaust manifold 12 1
Air duct b(a/c heater YPC190-H75-CYL.)(t/c fw.side) 45 3
Cooling water pipe(block inlet) 18 1
Cooling  water pipe 51 1
Cooling water pipe 88 2
Cooling water pipe 12 1
Cooling water pipe 56 1
Cooling water pipe 23 1
Suc.manifold 13 1
Cooling water pipe(collecting pipe outlet)(b-bank) 12 1
Cooling water thermostat 17 1
C.w.pipe(l.o.cooler-cylinder) 6 1
L.o.pipe(cylinder in) 5 1
Lub.oil cooler in/outlet pipe & thermostat 6 2
C.w.pipe(exh.manifold out) 4 1
C.w.pipe(air cooler out) 14 1
C.w.pipe(a/c in/out) 5 2
C.w.pipe(radiator cooling) 16 1
C.w.collecting pipe 4 1
C.w.pipe(c.w.pump-l.o.cooler) 8 1
C.w.pipe(a/c in/out)(t/c ofw.side) 5 2
C.w.pipe(lo.cooler-cyl.block) 6 1
Cooling water pipe(new) 13 1
Cooling  water pipe 15 1
Cooling  water pipe 11 1
Cooling  water pipe 21 1
Cooling water pipe 47 1
Cooling water pipe 62 1
Air intake connecting pipe 4 1
Cooling water pipe(new) 76 2
Lub.oil cooler 17 1
Cooling water pipe(new) 106 1
Lub.oil cooler(main engine) 38 2
C.w.pipe(radiator cooling) 34 1
Cooling water pipe 5 2
Cooling water pipe 11 1
C.w.pipe & thermostat 64 17
Fuel strainer(N0.1) 14 2
Air cleaner & muffler 16 1
Lub.oil pipe(out side) 12 1
Cooling water pipe &thermostat 62 17
Air cleaner & muffler 17 1
Lub.oil cooler 9 2
Cooling water line 31 1
Lub.oil cooler 20-1 1
  • Interchangeability: old and new parts are interchangeable
  • Applies from: date 2011.05
Lub. oil cooler(w/priming) 12-1 2
  • Part superseded, not shown on the diagram
  • Interchangeability: new part number replaces the old one, not vice versa
  • Applies from: date 1993.05
Cooling water pipe 13 1
Cooling water pipe(new) 53 1
Lub.oil pipe(out side)(radiator cooling. w/o temp switch) 29 1
Cooling water pipe 8 1
Lub.oil pipe(out side)(radiator cooling. w/temp switch) 28 1
Cooling water pipe 19 3
C.w.pipe(radiator cooling) 6 1
Cooling water pipe 36 1
Cooling water pipe(l.o.cooler) 21 1
Lub.oil pipe(l.o.cooler) 5 1
Lub.oil pipe(l.o.cooler) 11 2
Cooling water pipe(l.o.cooler) 9 1
Suction connecting pipe 13 1
Cooling water pipe(air cooler) 41 2
  • Part superseded, not shown on the diagram
  • Interchangeability: additional part
  • Applies from: Engine No /# 0014
Breather pipe 23 1
  • Interchangeability: part is discontinued
  • Applies from: Engine No /#P28044
C.w.pipe(block in, air cooler out) 10 1
Cylinder block 37 1
  • Part superseded, not shown on the diagram
  • Interchangeability: part is discontinued
  • Applies from: date 2006.12
Cooling water collecting pipe 14 1
Thermostat & c.w.pipe(rad.in) 3-1 1
  • Interchangeability: quantity in the assembly changed
Cooling water pipe(air cooler) 19 2
  • Part superseded, not shown on the diagram
  • Interchangeability: part is discontinued
  • Applies from: Engine No /# 0014
C.w.pipe(air cooler) 14 2
Thermostat case(w/o c.w.pump, w/o radiator) 6 1
C.w.pipe(xr pump-cyl.)(t/c fw.side) 22 1
  • Interchangeability: additional part
  • Applies from: Engine No 00150
Lub.oil cooler(aux.engine) 50 2
  • Interchangeability: additional part
  • Applies from: Engine No 00149
Lub.oil cooler(aux.engine) 45 2
Air duct b(a/c YPC212-CYLINDER)(t/c fw.side) 25 3
Air duct b(a/c YPC212-CYLINDER)(t/c ofw.side) 25 3
Lub.oil cooler(aux.engine) 51 2
  • Interchangeability: additional part
  • Applies from: Engine No 00151
C.w.pipe(xr pump-cyl.)(t/c fw.side) 22 1
  • Interchangeability: additional part
  • Applies from: Engine No 00151
Lub.oil pipe(cooler-cylinder) 10 1
C.w.pipe(lo.cooler-cyl.block) 14 1
Suc.press.gauge pipe(RU120A-2) 18 3
Suction manifold 5 3
Suction manifold 5 9
Cooling water concentric pipe 8 1
Cylinder block 50 1
  • Interchangeability: additional part
Fo.main pipe & accumulator 2 1
Cooling water pipe(6LAALG-1) 13 1
Cooling water pipe(6LAALG-1) 106 1
Cooling water pipe(6LAALG-1) 58 1
Cooling water pipe(previous) 74 1
Cooling water pipe(6LAALG-1) 24 1
Cooling water pipe(6laalg) 52-1 1
  • Part superseded, not shown on the diagram
  • Interchangeability: new part number replaces the old one, not vice versa
  • Applies from: date 1993.05
Lub.oil pipe(out side) 42 1
  • Part superseded, not shown on the diagram
  • Interchangeability: additional part
Cooling water pipe(6laalg) 43-1 1
  • Part superseded, not shown on the diagram
  • Interchangeability: new part number replaces the old one, not vice versa
  • Applies from: date 1993.05
Cooling water pipe(6laalg) 20-1 1
  • Part superseded, not shown on the diagram
  • Interchangeability: new part number replaces the old one, not vice versa
  • Applies from: date 1993.05
Lub.oil cooler 17 1
  • DISCHARGE COOLING SPEC.
Lub.oil pipe(out side)(discharge cooling. w/o temp switch) 25 1
C.w.pipe(discharge cooling:separately attached c.w.pump) 5 2
C.w.pipe(discharge cooling:separately attached c.w.pump) 62 1
C.w.pipe(discharge cooling:separately attached c.w.pump) 47 1
C.w.pipe(discharge cooling:separately attached c.w.pump) 11 1
C.w.pipe(discharge cooling) 20 3
C.w.pipe(discharge cooling) 38 1
Lub.oil pipe(out side)(discharge cooling. w/temp switch) 24 1
C.w.pipe(discharge cooling) 14 1
C.w.pipe(discharge cooling) 9 1
Exh.bend 6 1
Lub.oil pipe(out side) 62-1 1
  • Interchangeability: old and new parts are interchangeable
  • Applies from: date 1993.05
Cooling water system 16 2
Breather 19 1
Lub. oil cooler 12-1 2
  • Part superseded, not shown on the diagram
  • Interchangeability: new part number replaces the old one, not vice versa
  • Applies from: date 1993.05
Lub. oil strainer & by.pass strainer 7 1
Cooling water pipe &thermostat 55 2
Return chambr 7 2
Lub.oil pipe(out side/radiator cooling spec.) 14 1
Cooling water pipe & thermostat(2-line discharge cooling spec) 55 2
Cooling water pipe & thermostat(radiator cooling spec.) 58 17
Lub. oil pipe(psg governor) 1 1
C.w.pipe (c.w.pump-l.o.cooler) 11 1
Lub.oil cooler 22-1 1
  • Interchangeability: old and new parts are interchangeable
  • Applies from: Engine No 05459
Cooling water line 49 1
Cooling  water pipe 118 1
Cooling water line 55 1
C.w.pipe(l.o.cooler inlet) 2 1
C.w.pipe(l.o.cooler inlet) 11 1
C.w.pipe(c.w.pump-cylinder) 8 1
C.w.pipe(cylinder inlet) 2 1
Air cooler casing 16-1 1
  • Part superseded, not shown on the diagram
  • Interchangeability: part is discontinued
  • Applies from: date 1999.02
Air cooler casing 16 1
  • Interchangeability: additional part
  • Applies from: date 1998.04
Lub.oil pipe(strainer-cooler) 5 1
C.w.pipe(air cooler) 11 2
Lub.oil strainer 7 1
Suction manifold 3 1
Lub.oil press.regulating valve 17 1
C.w.pipe(lo.cooler-cyl.block) 9 1
Suction manifold 3 2
Suc.press.gauge pipe(RU110) 6 3
Suc.press.gauge pipe(RU120A-2) 6 3
Suc.press.gauge pipe(TD10L) 6 3
C.w.collecting pipe 3 2
Cooling water pipe 10 1
Cooling water pipe(2-line) 5 1
Cooling water pipe(2-line) 37 1
Cooling water pipe(2-line) 17 1
Cooling water pump(xr) 31 1
Cooling water pump 31 1
Air duct 20 1
Lub.oil cooler 13 4
Lub.oil pipe & tank(h.o.governor) 36 1
Cooling water concentric pipe 5 1
Air duct(RU120A-1) 8 2
Pulse absorb device 6 2
Governor driving device(psg) 60 1
C.w.pipe(air cooler-l.o.cooler) 17 2
C.w.pipe(air cooler-l.o.cooler) 2 1
Cooling water pipe(pump outlet) 5 1
C.w.pipe(pump-air cooler-l.o.cooler) 2 2
Cooling water collecting pipe 9 1
C.w.pipe(pump-air cooler-l.o.cooler) 20 2
C.w.pipe(pump-air cooler-l.o.cooler) 12 1
Air duct(a/b),turbo.fw.side 34 3
Air duct(a/b),turbo.ofw.side 29 3
Fo.chamber & fo.pipe(return pipe-pcv.-feed pump) 10 2
Suction manifold 5 7
Air duct(RU140) 9 2
Fo.press.regulating valve 20 1
Cw.pipe(air cooler in/outlet & air vent/drain rarge) 6 2
Lo.cooler & mtg.bracket,flange 23 2
Lo.press.regulating valve & dipstick 20 1
Cw.pipe(a/c.inlet & a/c.-lo.cooler,lo.c.outlet) 10 1
Fuel pressure gauge pipe(f.o.chamber) 42 2

Other parts of the “Breather” assembly, Yanmar 4HAL-N(S01)

  Open the assembly diagram