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Please note that your serial number could be located on the outside frame of your unit.  On the dataplate, there should be your model number, serial number, and possibly even a date of manufacture needed in order to match up the correct parts diagram for your unit accurately.

Here are some examples of your serial number location:

Here is an example of where you can find your corresponding Efco Power serial number to enter for correct parts matching.

Serial Number Product Location Finder

Efco MT-3750

Efco MT-4000

Efco MT-4100-SP

323ea7722689aec62e4b2d1244660a8a340f5305_EFC_MT_3700.jpg

b0b7b2ec74dd6ca0286f71e675c2a7fc72c4a06d_MT3700_IPL.pdf

86d2cba930c70dd1c302226fb4fa09f33c83b974___Carburetor_WT_781.jpg

4ecb3b492f27f905d15426ae990472c3a0aecd9f_Clutch_brake.jpg

d0f763ffb45beb085ce116e72185ef936d0e8df8_Crankcase.jpg

9c098a7c613b4ee6a9a9716ea94cee56dee7a7d8_Engine_3.jpg

f77b7bd2be28d844afaec92523486bcf739d2fff_Starter_assy_6.jpg

073415618f4033bea3562020c39709e1f49245d5_Tank_handle.jpg

EFCO 132S ChainSaw

EFCO 147 ChainSaw

EFCO 152 ChainSaw

EFCO 156 ChainSaw

EFCO 165 ChainSaw

EFCO 181 ChainSaw

EFCO 264/ 264 Delux/264F Chain Saw

EFCO 931 ChainSaw

EFCO 932 ChainSaw

EFCO 932C ChainSaw

EFCO 935DX ChainSaw

EFCO 940 ChainSaw

EFCO 941 ChainSaw

EFCO 942 ChainSaw

EFCO 946 ChainSaw

EFCO 947 ChainSaw

EFCO 951 ChainSaw

EFCO 952 ChainSaw

EFCO 956 ChainSaw

EFCO 962 ChainSaw

EFCO 970 ChainSaw

EFCO 971 ChainSaw

EFCO 980 ChainSaw

EFCO 981 ChainSaw

EFCO 999/ 999-F ChainSaw

EFCO MT-3500 ChainSaw

EFCO MT-3500-S ChainSaw

EFCO MT-3600 ChainSaw

EFCO MT-3700 ChainSaw

EFCO MT-3750 ChainSaw

EFCO MT-4000 ChainSaw

EFCO MT-4100-SP ChainSaw

EFCO MT-4400 ChainSaw

EFCO MT-5200 ChainSaw

EFCO MT-6500 ChainSaw

EFCO MT-7200 ChainSaw

EFCO MT-8200 ChainSaw

EFCO MTT-3600 ChainSaw

EFCO MT-3700 ChainSaw EFCO MT-3700 Carburetor WT-781

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