84001977 Electronic Control Module (Not programmed) #

Product Description

Genuine Briggs and Stratton part: 84001977

Electronic Control Module. (Often marked with 847675A)

IMPORTANT!! These electronic control modules are supplied unprogrammed as they are used on mutliple applications, many required different programming to suit there intended final application. Programming requires the unit to be mounted to a suitable engine and the use of specialist dealer software, therefore needs to undertaken by an Authorised Briggs & Stratton / Vanguard Commercial dealer with the appropriate equipement.

If you don't have access to a local dealer, and if you have the complete, (and accurate), serial number from the engine the unit is to be fitted to, we can arrange for the unit to be pre-programmed to suit prior to dispatch, please contact us to confirm the current leadtime and cost for this service.


Engine series applications can include, (but may not be limited to), variants of:

23 HP EFI/ETC Vanguard V-Twin OHV (Horizontal)


Used on selected applications including:

38E347-0001-B5, 38E347-0002-G1, 38E347-0003-G1, 38E347-0004-G1, 38E347-0005-G1, 38E347-0006-G1, 38E347-0008-G1, 38E347-0012-G1, 38E347-0014-B5, 38E347-0015-B5, 38E347-0016-G1, 38E347-0017-G1, 38E347-0018-G1, 38E347-0019-G1, 38E347-0020-G1, 38E347-0021-G1, 38E347-0022-G1, 38E347-0025-G1, 38E347-0026-G1, 38E347-0108-G1, 38E347-0109-G1, 38E347-0110-G1, 38E347-0111-G1, 38E347-0112-G1, 38E347-0122-G1, 38E347-0123-G1, 38E347-0124-01, 38E347-0125-G1


PLEASE NOTE: Attempting to fit the incorrect part can have a dramatic affect on how your engine runs, it also risks causing damage to either the part, or the engine. If you're not sure of the exact part number for your engine, refer to the parts list specific to your engines Model, Type and Code numbers, or contact us for assistance.