thanks Mike! this is the info I found in the auction as far as cross over parts/saws. Not sure if yours fits the list or not.
#984883001
Fits models:
· 38cc 16" Chain Saw UT-10927-D
· 38cc 16" Chain Saw UT-74123-D
· 45cc 18" Chain Saw UT-10946-D
· 45cc 18" Chain Saw UT-74125-D
· 45cc 20" Chain Saw UT-10942-D
· 45cc 20" Chain Saw UT-74127-D
· RY74005D 38cc - 16 in. Chain Saw
· RY74007D 45cc - 18 in. Chain Saw
Also this list from another auction ***
One BRAND NEW Homelite, Craftsman, Sears IGNITION MODULE Coil KIT for Walbro ignition systems
(The name Walbro will be stamped into your flywheel)
(shown as item number 10 in the schematic)
for the following Homelite 38cc & 45cc models only:
· d3800 Chain Saw UT-10780-->Starter - Ignition
· d3800 Chain Saw UT-10780-A-->Starter - Ignition
· d3800c Chain Saw UT-10783-->Starter - Ignition
· d3800c Chain Saw UT-10783-A-->Starter - Ignition
· d3850b Chain Saw UT-10769-->Starter - Ignition
· d3850b Chain Saw UT-10769-A-->Starter - Ignition
· d3850b Chain Saw UT-10833-->Starter - Ignition
· d3850b Chain Saw UT-10861-->Starter - Ignition
· d3850b Chain Saw UT-10886-->Starter - Ignition
· d3850bc Chain Saw UT-10770-->Starter - Ignition
· d3850bc Chain Saw UT-10770-A-->Starter - Ignition
· d3850bc Chain Saw UT-10824-->Starter - Ignition
· d3850bc Chain Saw UT-10837-->Starter - Ignition
· d3850bc Chain Saw UT-10838-->Starter - Ignition
· d3850bc Chain Saw UT-10865-->Starter - Ignition
· d3850bc Chain Saw UT-10866-->Starter - Ignition
· d3850bc Chain Saw UT-10887-->Starter - Ignition
· d4150b Chain Saw UT-10801-->Starter - Ignition
· d4150b w/cc Chain Saw UT-10802-->Starter - Ignition
· d4550b Chain Saw UT-10787-->Starter - Ignition
· d4550b Chain Saw UT-10832-->Starter - Ignition
· d4550b Chain Saw UT-10860-->Starter - Ignition
· d4550bc Chain Saw UT-10836-->Starter - Ignition
· d4550bc Chain Saw UT-10864-->Starter - Ignition
· i3850b Chain Saw UT-10758-->Starter - Ignition
· i3850b Chain Saw UT-10758-A-->Starter - Ignition
· i3850b Chain Saw UT-10869-->Starter - Ignition
· i4150b Chain Saw UT-10808-->Starter - Ignition
· i4150b Chain Saw UT-10839-->Starter - Ignition
· i4150b Chain Saw UT-10867-->Starter - Ignition
· i4550b Chain Saw UT-10807-->Starter - Ignition
· i4550b Chain Saw UT-10834-->Starter - Ignition
· 20 Chain Saw UT-10782-A-->Starter - Ignition
· 20 Chain Saw UT-10817-->Starter - Ignition
· 20 w/cc Chain Saw UT-10786-A-->Starter - Ignition
· 20 w/cc Chain Saw UT-10818-->Starter - Ignition
· 20av Chain Saw UT-10759-A-->Starter - Ignition
· 20av w/cc Chain Saw UT-10771-A-->Starter - Ignition
· 23 Chain Saw UT-10781-A-->Starter - Ignition
· 23 w/cc Chain Saw UT-10785-A-->Starter - Ignition
· 23 w/cc Chain Saw UT-10815-->Starter - Ignition
· 23 w/cc Chain Saw UT-10842-->Starter - Ignition
· 23av Chain Saw UT-10772-A-->Starter - Ignition
· 23av Chain Saw UT-10820-->Starter - Ignition
· 23av Chain Saw UT-10846-->Starter - Ignition
· 23av Chain Saw UT-10884-->Starter - Ignition
· 23av w/cc Chain Saw UT-10773-A-->Starter - Ignition
· 23av w/cc Chain Saw UT-10822-->Starter - Ignition
· 23av w/cc Chain Saw UT-10823-->Starter - Ignition
· 23av w/cc Chain Saw UT-10829-->Starter - Ignition
· 23av w/cc Chain Saw UT-10856-->Starter - Ignition
· 23av w/cc Chain Saw UT-10858-->Starter - Ignition
· 23av w/cc Chain Saw UT-10885-->Starter - Ignition
· 23av w/cc Chain Saw UT-10888-->Starter - Ignition
· 25av Chain Saw UT-10803-->Starter - Ignition
· 25av w/cc Chain Saw UT-10804-->Starter - Ignition
· 27av Chain Saw UT-10805-->Starter - Ignition
· 27av Chain Saw UT-10831-->Starter - Ignition
· 27av Chain Saw UT-10859-->Starter - Ignition
· 27av Chain Saw UT-10874-->Starter - Ignition
· 27av w/cc Chain Saw UT-10825-->Starter - Ignition
· 27av w/cc Chain Saw UT-10827-->Starter - Ignition
· 27av w/cc Chain Saw UT-10830-->Starter - Ignition
· 27av w/cc Chain Saw UT-10835-->Starter - Ignition
· 27av w/cc Chain Saw UT-10848-->Starter - Ignition
· 27av w/cc Chain Saw UT-10863-->Starter - Ignition
· All American Chain Saw UT-10790-->Starter - Ignition
· b2014 Chain Saw UT-10797-R-->Starter - Ignition
· b2014 Chain Saw UT-10934-->Starter - Ignition
· b2316 Chain Saw UT-10798R-->Starter - Ignition
· b2316 Chain Saw UT-10936-->Starter - Ignition
· b2316 w/cc Chain Saw UT-10798-R1-->Starter - Ignition
· b2316 w/cc Chain Saw UT-10937-->Starter - Ignition
· B2718 Chain Saw UT-10877-->Starter - Ignition
· B2718 Chain Saw UT-10938-->Starter - Ignition
· B2720 Chain Saw UT-10875-->Starter - Ignition
· B2720 Chain Saw UT-10939-->Starter - Ignition
· B2720cc Chain Saw UT-10876-->Starter - Ignition
· B2720cc Chain Saw UT-10940-->Starter - Ignition
· BCS35 Chain Saw UT-10878-->Starter - Ignition
· d3300 Chain Saw UT-10779-->Starter - Ignition
· d3300 Chain Saw UT-10779-A-->Starter - Ignition
· d3300 Chain Saw UT-10821-->Starter - Ignition
· d3300c Chain Saw UT-10784-->Starter - Ignition
· d3300c Chain Saw UT-10784-A-->Starter - Ignition
· d3300c Chain Saw UT-10828-->Starter - Ignition
· d3350b Chain Saw UT-10767-->Starter - Ignition
· d3350b Chain Saw UT-10767-A-->Starter - Ignition
· d3350bc Chain Saw UT-10768-->Starter - Ignition
· d3350bc Chain Saw UT-10768-A-->Starter - Ignition
· d3800 Chain Saw UT-10780-->Starter - Ignition
· d3800 Chain Saw UT-10780-A-->Starter - Ignition
· d3800c Chain Saw UT-10783-->Starter - Ignition
· d3800c Chain Saw UT-10783-A-->Starter - Ignition
· d3850b Chain Saw UT-10769-->Starter - Ignition
· d3850b Chain Saw UT-10769-A-->Starter - Ignition
· d3850b Chain Saw UT-10833-->Starter - Ignition
· d3850b Chain Saw UT-10861-->Starter - Ignition
· d3850b Chain Saw UT-10886-->Starter - Ignition
· d3850bc Chain Saw UT-10770-->Starter - Ignition
· d3850bc Chain Saw UT-10770-A-->Starter - Ignition
· d3850bc Chain Saw UT-10824-->Starter - Ignition
· d3850bc Chain Saw UT-10837-->Starter - Ignition
· d3850bc Chain Saw UT-10838-->Starter - Ignition
· d3850bc Chain Saw UT-10865-->Starter - Ignition
· d3850bc Chain Saw UT-10866-->Starter - Ignition
· d3850bc Chain Saw UT-10887-->Starter - Ignition
· d4150b Chain Saw UT-10801-->Starter - Ignition
· d4150b w/cc Chain Saw UT-10802-->Starter - Ignition
· d4550b Chain Saw UT-10787-->Starter - Ignition
· d4550b Chain Saw UT-10832-->Starter - Ignition
· d4550b Chain Saw UT-10860-->Starter - Ignition
· d4550bc Chain Saw UT-10836-->Starter - Ignition
· d4550bc Chain Saw UT-10864-->Starter - Ignition
· i3350b Chain Saw UT-10774-->Starter - Ignition
· i3350b Chain Saw UT-10774-A-->Starter - Ignition
· i3350b Chain Saw UT-10840-->Starter - Ignition
· i3350b Chain Saw UT-10868-->Starter - Ignition
· i3850b Chain Saw UT-10758-->Starter - Ignition
· i3850b Chain Saw UT-10758-A-->Starter - Ignition
· i3850b Chain Saw UT-10869-->Starter - Ignition
· i4150b Chain Saw UT-10808-->Starter - Ignition
· i4150b Chain Saw UT-10839-->Starter - Ignition
· i4150b Chain Saw UT-10867-->Starter - Ignition
· i4550b Chain Saw UT-10807-->Starter - Ignition
· i4550b Chain Saw UT-10834-->Starter - Ignition
· N3014 Chain Saw UT-10799-R-->Starter - Ignition
· n3014 Chain Saw UT-10932-->Starter - Ignition
· n3014 w/cc Chain Saw UT-10799-R1-->Starter - Ignition
· n3014 w/cc Chain Saw UT-10933-->Starter - Ignition
· N3316 Chain Saw UT-10800-R-->Starter - Ignition
· n3316 Chain Saw UT-10935-->Starter - Ignition
· 20 Chain Saw UT-10847-->Starter - Ignition
· 20 Chain Saw UT-10881-->Starter - Ignition
· 20 w/cc Chain Saw UT-10853-->Starter - Ignition
· 20 w/cc Chain Saw UT-10883-->Starter - Ignition
· 23 w/cc Chain Saw UT-10870-->Starter - Ignition
· B2216CC Chain Saw UT-10941-->Starter - Ignition
· d3300 Chain Saw UT-10855-->Starter - Ignition
· d3300 Chain Saw UT-10880-->Starter - Ignition
· d3300c Chain Saw UT-10857-->Starter - Ignition
· d3300c Chain Saw UT-10882-->Starter - Ignition
· PS33 Chain Saw UT-10854-->Starter - Ignition
· Ranger 33cc 16" Chain Saw UT-10926-->Starter - Ignition
Refer to part number up05851, up05851a, 984883001.