Commercial, Stationary and Gas Engines

CATERPILLAR

1404 w/Hercules Engine G1600

Model	Standard Plug	Gap (mm)
	W20S-U	0.6

824, 834, D2, D4

Model	Standard Plug	Gap (mm)
	W14P-U	0.7
	M17	0.6

D4C, D6B

Model	Standard Plug	Gap (mm)
	W16P-U	0.6

D6, D7, D8, D9, RD4

Model	Standard Plug	Gap (mm)
	W14P-U	0.7
	M17	0.6

DW15, DW20, DW21

Model	Standard Plug	Gap (mm)
	W14P-U	0.7

T30B, T40B

Model	Standard Plug	Gap (mm)
	W16P-U	0.9

T35B, T45B, T55B, V30C

Model	Standard Plug	Gap (mm)
	W16P-U	0.9

T50B, T60B

Model	Standard Plug	Gap (mm)
	W16P-U	0.9

V35C, V40C, V45C, V50C

Model	Standard Plug	Gap (mm)
	W16P-U	0.9

DW10, DW15, DW20, DW21

Model	Standard Plug	Gap (mm)
	M17	0.6

800G, D1300 (Special)

Model	Standard Plug	Gap (mm)
	W20S-U	0.6

D11000, D13000, D17000

Model	Standard Plug	Gap (mm)
	W14P-U	0.7
	M17	0.6

D311, D315, D318, D320, D326

Model	Standard Plug	Gap (mm)
	W14P-U	0.7

D318 (Special)

Model	Standard Plug	Gap (mm)
	W20M-U	0.6

D330, D333

Model	Standard Plug	Gap (mm)
	W16P-U	0.7

D337, D339, D342, D343, D353, D375

Model	Standard Plug	Gap (mm)
	W14P-U	0.7

D379, D397, D398, D3400, D4400, D4600

Model	Standard Plug	Gap (mm)
	W14P-U	0.7

D6600, D7700, D8800

Model	Standard Plug	Gap (mm)
	W14P-U	0.7
	M17	0.6

D311, D315, D318, D320, D326, D337

Model	Standard Plug	Gap (mm)
	M17	0.6

D339, D342, D343, D353, D375, D379

Model	Standard Plug	Gap (mm)
	M17	0.6

D397, D398, D3400, D4400, D4460

Model	Standard Plug	Gap (mm)
	M17	0.6

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