Key Assembly 1-603511
OEM part for: Lawn Boy, Toro
Part Number: 1-603511
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$3.99
Usually ships in 7 - 12 business days
Leaves our warehouse within 7 - 12 business days
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Compatibility
This part will fit the following 178 machines
Lawn Boy
1851 (000000001-099999999)(1980) Snowblower View Diagrams & Manuals
1871 (000000001-099999999)(1980) Snowblower View Diagrams & Manuals
55379 (J00000001-J99999999)(1990) St320 Snowblower View Diagrams & Manuals
55379 (800000001-899999999)(1988) St320 Snowblower View Diagrams & Manuals
55380 (J00000001-J99999999)(1990) St320e Snowblower View Diagrams & Manuals
55380 (800000001-899999999)(1988) St320e Snowblower View Diagrams & Manuals
55381 (800000001-899999999)(1988) St524 Snowblower View Diagrams & Manuals
55381A (J00000001-J99999999)(1990) St524 Snowblower View Diagrams & Manuals
55382 (800000001-899999999)(1988) St824 Snowblower View Diagrams & Manuals
55382A (J00000001-J99999999)(1990) St824 Snowblower View Diagrams & Manuals
55383 (800000001-899999999)(1988) St826 Snowblower View Diagrams & Manuals
55383A (J00000001-J99999999)(1990) St826 Snowblower View Diagrams & Manuals
55384 (800000001-899999999)(1988) St1032 Snowblower View Diagrams & Manuals
55384A (J00000001-J99999999)(1990) St1032 Snowblower View Diagrams & Manuals
156729 (L00000001-L99999999)(1992) Lt10.5 Lawn Tractor View Diagrams & Manuals
52138 (800000001-899999999)(1988) Lt12 Lawn Tractor View Diagrams & Manuals
52142 (800000001-899999999)(1988) Lt11 Lawn Tractor View Diagrams & Manuals
52144 (800000001-899999999)(1988) Re8e Rider, With 30" Mower View Diagrams & Manuals
52145 (800000001-899999999)(1988) Re8e Rider, With 30" Mower View Diagrams & Manuals
53084 (800000001-899999999)(1988) Gt18h Garden Tractor View Diagrams & Manuals
Toro
23518 (312000001-312999999) 30in Stand-on Aerator, 2012 View Diagrams & Manuals
23518 (313000001-313999999) 30in Stand-on Aerator, 2013 View Diagrams & Manuals
23518 (314000001-314999999) 30in Stand-on Aerator, 2014 View Diagrams & Manuals
23518 (315000001-315999999) 30in Stand-on Aerator, 2015 View Diagrams & Manuals
23518 (316000001-316999999) 30in Stand-on Aerator, 2016 View Diagrams & Manuals
29518 (314000001-314999999) 30in Stand-on Aerator, 2014 View Diagrams & Manuals
29518 (315000001-315999999) 30in Stand-on Aerator, 2015 View Diagrams & Manuals
29518 (316000001-316999999) 30in Stand-on Aerator, 2016 View Diagrams & Manuals
29518 (400000000-999999999) 30in Stand-on Aerator, 2017 View Diagrams & Manuals
33518 (312000001-312999999) 30in Stand-on Aerator, 2012 View Diagrams & Manuals
33518 (313000001-313999999) 30in Stand-on Aerator, 2013 View Diagrams & Manuals
33518 (314000001-314999999) 30in Stand-on Aerator, 2014 View Diagrams & Manuals
33518 (315000001-315999999) 30in Stand-on Aerator, 2015 View Diagrams & Manuals
39518 (314000001-314999999) 30in Stand-on Aerator, 2014 View Diagrams & Manuals
39518 (315000001-315999999) 30in Stand-on Aerator, 2015 View Diagrams & Manuals
39518 (316000001-316999999) 30in Stand-on Aerator, 2016 View Diagrams & Manuals
39518 (400000000-999999999) 30in Stand-on Aerator, 2017 View Diagrams & Manuals
39519 (400000000-999999999) 30in Stand-on Aerator, 2017 View Diagrams & Manuals
33518 (312000001-312999999)(2012) 30in Stand-On Aerator View Diagrams & Manuals
33518 (313000001-313999999)(2013) 30in Stand-On Aerator View Diagrams & Manuals
33518 (314000001-314999999)(2014) 30in Stand-On Aerator View Diagrams & Manuals
33518 (315000001-315999999)(2015) 30in Stand-On Aerator View Diagrams & Manuals
34231 (400000000-999999999) 36in , Spray Master Sprayer View Diagrams & Manuals
39518 (314000001-314999999)(2014) 30in Stand-On Aerator View Diagrams & Manuals
39518 (315000001-315999999)(2015) 30in Stand-On Aerator View Diagrams & Manuals
39518 (316000001-316999999)(2016) 30in Stand-On Aerator View Diagrams & Manuals
72902TE (400000000-410999999) Z Master Professional 6000 , With 122cm Turbo Force Side Discharge Mower View Diagrams & Manuals
72902TE (411000000-999999999) Z Master Professional 6000 , With 122cm Turbo Force Side Discharge Mower View Diagrams & Manuals
72910 (400000000-409219335) Z Master Professional 5000 , With 60in Turbo Force Side Discharge Mower View Diagrams & Manuals
72910 (409219336-409521811) Z Master Professional 5000 , With 60in Turbo Force Side Discharge Mower View Diagrams & Manuals
72910 (409521812-999999999) Z Master Professional 5000 , With 60in Turbo Force Side Discharge Mower View Diagrams & Manuals
72925TE (400000000-999999999) Z Master Professional 6000 , With 152cm Turbo Force Side Discharge Mower View Diagrams & Manuals
72932 (400000000-999999999) Z Master 3000 , With 52in Turbo Force Side Discharge Mower View Diagrams & Manuals
72936 (400000000-999999999) Z Master 3000 , With 60in Turbo Force Side Discharge Mower View Diagrams & Manuals
72949 (400000000-406397818) Z Master 3000 , With 52in Turbo Force Side Discharge Mower View Diagrams & Manuals
72949 (406397819-999999999) Z Master 3000 , With 52in Turbo Force Side Discharge Mower View Diagrams & Manuals
72949HD (400000000-999999999) Z Master 3000 , With 52in Turbo Force Side Discharge Mower View Diagrams & Manuals
72950 (400000000-406397842) Z Master Professional 3000 , With 60in Turbo Force Side Discharge Mower View Diagrams & Manuals
72950 (406397843-999999999) Z Master Professional 3000 , With 60in Turbo Force Side Discharge Mower View Diagrams & Manuals
72952 (400000000-406397858) Z Master 3000 , With 48in Turbo Force Side Discharge Mower View Diagrams & Manuals
72952 (406397859-999999999) Z Master 3000 , With 48in Turbo Force Side Discharge Mower View Diagrams & Manuals
72958 (400000000-999999999) Z Master 3000 , With 60in Turbo Force Side Discharge Mower View Diagrams & Manuals
72959 (400000000-999999999) Z Master 3000 , With 72in Turbo Force Side Discharge Mower View Diagrams & Manuals
72960 (400000000-406397882) Z Master Professional 6000 , With 60in Turbo Force Side Discharge Mower View Diagrams & Manuals
72960 (406397883-409199999) Z Master Professional 6000 , With 60in Turbo Force Side Discharge Mower View Diagrams & Manuals
72960 (409200000-999999999) Z Master Professional 6000 , With 60in Turbo Force Side Discharge Mower View Diagrams & Manuals
72961 (400000000-409035562) Z Master Professional 6000 , With 72in Turbo Force Side Discharge Mower View Diagrams & Manuals
72961 (409035563-999999999) Z Master Professional 6000 , With 72in Turbo Force Side Discharge Mower View Diagrams & Manuals
72965 (400000000-409031048) Z Master Professional 6000 , With 60in Turbo Force Side Discharge Mower View Diagrams & Manuals
72965 (409031049-999999999) Z Master Professional 6000 , With 60in Turbo Force Side Discharge Mower View Diagrams & Manuals
72967 (400000000-409016536) Z Master Professional 6000 , With 60in Turbo Force Side Discharge Mower View Diagrams & Manuals
72967 (409016537-999999999) Z Master Professional 6000 , With 60in Turbo Force Side Discharge Mower View Diagrams & Manuals
72968 (400000000-409039414) Z Master Professional 6000 , With 72in Turbo Force Side Discharge Mower View Diagrams & Manuals
72968 (409039415-999999999) Z Master Professional 6000 , With 72in Turbo Force Side Discharge Mower View Diagrams & Manuals
72969TE (400000000-999999999) Z Master Professional 6000 , With 132cm Turbo Force Side Discharge Mower View Diagrams & Manuals
72980 (400000000-999999999) Z Master Professional 6000 , With 60in Turbo Force Side Discharge Mower View Diagrams & Manuals
72982 (400000000-999999999) Z Master Professional 6000 , With 72in Turbo Force Side Discharge Mower View Diagrams & Manuals
74902TE (403138033-404319999) Z Master Professional 6000 , With 122cm Turbo Force Side Discharge Mower View Diagrams & Manuals
74902TE (404320000-999999999) Z Master Professional 6000 , With 122cm Turbo Force Side Discharge Mower View Diagrams & Manuals
74919TE (403227085-404319999) Z Master Professional 6000 , With 132cm Turbo Force Side Discharge Mower View Diagrams & Manuals
74919TE (404320000-999999999) Z Master Professional 6000 , With 132cm Turbo Force Side Discharge Mower View Diagrams & Manuals
74925TE (403138045-404319999) Z Master Professional 6000 , With 152cm Turbo Force Side Discharge Mower View Diagrams & Manuals
74925TE (404320000-999999999) Z Master Professional 6000 , With 152cm Turbo Force Side Discharge Mower View Diagrams & Manuals
74949 (400000000-403247665) Z Master 3000 , With 52in Turbo Force Side Discharge Mower View Diagrams & Manuals
74949 (403247666-999999999) Z Master 3000 , With 52in Turbo Force Side Discharge Mower View Diagrams & Manuals
74949HD (400000000-999999999) Z Master 3000 , With 52in Turbo Force Side Discharge Mower View Diagrams & Manuals
74950 (403247405-999999999) Z Master Professional 3000 , With 60in Turbo Force Side Discharge Mower View Diagrams & Manuals
74952 (403319825-999999999) Z Master 3000 , With 48in Turbo Force Side Discharge Mower View Diagrams & Manuals
74958 (403319861-999999999) Z Master 3000 , With 60in Turbo Force Side Discharge Mower View Diagrams & Manuals
74959 (403010622-999999999) Z Master 3000 , With 72in Turbo Force Side Discharge Mower View Diagrams & Manuals
74960 (403319909-999999999) Z Master Professional 6000 , With 60in Turbo Force Side Discharge Mower View Diagrams & Manuals
74961 (402100000-403319924) Z Master Professional 6000 , With 72in Turbo Force Side Discharge Mower View Diagrams & Manuals
74961 (403319925-999999999) Z Master Professional 6000 , With 72in Turbo Force Side Discharge Mower View Diagrams & Manuals
75932 (400000000-402364806) Z Master 3000 , With 52in Turbo Force Side Discharge Mower View Diagrams & Manuals
75932 (402364807-999999999) Z Master 3000 , With 52in Turbo Force Side Discharge Mower View Diagrams & Manuals
75936 (403137937-999999999) Z Master 3000 , With 60in Turbo Force Side Discharge Mower View Diagrams & Manuals
75967 (403247361-999999999) Z Master Professional 6000 , With 60in Turbo Force Side Discharge Mower View Diagrams & Manuals
75968 (402100000-403319980) Z Master Professional 6000 , With 72in Turbo Force Side Discharge Mower View Diagrams & Manuals
75968 (403319981-999999999) Z Master Professional 6000 , With 72in Turbo Force Side Discharge Mower View Diagrams & Manuals
75969TE (403100000-404319999) Z Master Professional 6000 , With 132cm Turbo Force Side Discharge Mower View Diagrams & Manuals
75969TE (404320000-999999999) Z Master Professional 6000 , With 132cm Turbo Force Side Discharge Mower View Diagrams & Manuals
78924 (402505651-999999999) Z Master Professional 6000 , With 52in Turbo Force Side Discharge Mower View Diagrams & Manuals
72942TE (400000000-410999999) Z Master Professional 6000 Series , With 152cm Rear Discharge Riding Mower View Diagrams & Manuals
72942TE (411000000-999999999) Z Master Professional 6000 Series , With 152cm Rear Discharge Riding Mower View Diagrams & Manuals
74000 (400000000-410020246) 48in Z Master 4000 View Diagrams & Manuals
74000 (410020247-411419999) 48in Z Master 4000 View Diagrams & Manuals
74000 (411420000-411420592) 48in Z Master 4000 View Diagrams & Manuals
74000 (411420593-999999999) 48in Z Master 4000 View Diagrams & Manuals
74000TA (400000000-410016079) 48in Z Master 4000 View Diagrams & Manuals
74000TA (410016080-411420600) 48in Z Master 4000 View Diagrams & Manuals
74000TA (411420601-411420612) 48in Z Master 4000 View Diagrams & Manuals
74000TA (411420613-999999999) 48in Z Master 4000 View Diagrams & Manuals
74002 (400000000-409859942) 52in Z Master 4000 View Diagrams & Manuals
74002 (409859943-411420644) 52in Z Master 4000 View Diagrams & Manuals
74002 (411420645-999999999) 52in Z Master 4000 View Diagrams & Manuals
74004 (400000000-410139179) 60in Z Master 4000 View Diagrams & Manuals
74004 (410139180-411423924) 60in Z Master 4000 View Diagrams & Manuals
74004 (411423925-411423944) 60in Z Master 4000 View Diagrams & Manuals
74004 (411423945-999999999) 60in Z Master 4000 View Diagrams & Manuals
74010 (400000000-409428450) 52in Z Master 4000 View Diagrams & Manuals
74010 (409428451-411481175) 52in Z Master 4000 View Diagrams & Manuals
74010 (411481176-999999999) 52in Z Master 4000 View Diagrams & Manuals
74015 (400000000-410139361) 60in Z Master 4000 View Diagrams & Manuals
74015 (410139362-411424212) 60in Z Master 4000 View Diagrams & Manuals
74015 (411424213-999999999) 60in Z Master 4000 View Diagrams & Manuals
74020 (400000000-999999999) 60in Z Master 4000 View Diagrams & Manuals
74022 (400000000-999999999) 72in Z Master 4000 View Diagrams & Manuals
74035 (400000000-409432812) 60in Z Master 4000 View Diagrams & Manuals
74035 (409432813-411435543) 60in Z Master 4000 View Diagrams & Manuals
74035 (411435544-999999999) 60in Z Master 4000 View Diagrams & Manuals
74048TE (400000000-408767851) 122cm Z Master 4000 View Diagrams & Manuals
74048TE (408767852-408906416) 122cm Z Master 4000 View Diagrams & Manuals
74048TE (408906417-410169999) 122cm Z Master 4000 View Diagrams & Manuals
74048TE (410170000-411435567) 122cm Z Master 4000 View Diagrams & Manuals
74048TE (411435568-999999999) 122cm Z Master 4000 View Diagrams & Manuals
74050 (400000000-410142053) 52in Z Master 4000 View Diagrams & Manuals
74050 (410142054-411424068) 52in Z Master 4000 View Diagrams & Manuals
74050 (411424069-411424076) 52in Z Master 4000 View Diagrams & Manuals
74050 (411424077-999999999) 52in Z Master 4000 View Diagrams & Manuals
74050TA (400000000-410167663) 52in Z Master 4000 View Diagrams & Manuals
74050TA (410167664-411435591) 52in Z Master 4000 View Diagrams & Manuals
74050TA (411435592-411435611) 52in Z Master 4000 View Diagrams & Manuals
74050TA (411435612-999999999) 52in Z Master 4000 View Diagrams & Manuals
74052 (400000000-410020993) 52in Z Master 4000 View Diagrams & Manuals
74052 (410020994-411423788) 52in Z Master 4000 View Diagrams & Manuals
74052 (411423789-411423792) 52in Z Master 4000 View Diagrams & Manuals
74052 (411423793-999999999) 52in Z Master 4000 View Diagrams & Manuals
74053TE (400000000-408914113) 132cm Z Master 4000 View Diagrams & Manuals
74053TE (408914114-409854705) 132cm Z Master 4000 View Diagrams & Manuals
74053TE (409854706-410169999) 132cm Z Master 4000 View Diagrams & Manuals
74053TE (410170000-411435667) 132cm Z Master 4000 View Diagrams & Manuals
74053TE (411435668-999999999) 132cm Z Master 4000 View Diagrams & Manuals
74054 (400000000-408899999) 60in Z Master 4000 View Diagrams & Manuals
74054 (408900000-410143408) 60in Z Master 4000 View Diagrams & Manuals
74054 (410143409-411425384) 60in Z Master 4000 View Diagrams & Manuals
74054 (411425385-411425400) 60in Z Master 4000 View Diagrams & Manuals
74054 (411425401-999999999) 60in Z Master 4000 View Diagrams & Manuals
74054TA (400000000-408767923) 60in Z Master 4000 View Diagrams & Manuals
74054TA (408767924-409281501) 60in Z Master 4000 View Diagrams & Manuals
74054TA (409281502-411423828) 60in Z Master 4000 View Diagrams & Manuals
74054TA (411423829-411423840) 60in Z Master 4000 View Diagrams & Manuals
74054TA (411423841-999999999) 60in Z Master 4000 View Diagrams & Manuals
74055 (400000000-410147885) 60in Z Master 4000 View Diagrams & Manuals
74055 (410147886-411425684) 60in Z Master 4000 View Diagrams & Manuals
74055 (411425685-411425784) 60in Z Master 4000 View Diagrams & Manuals
74055 (411425785-999999999) 60in Z Master 4000 View Diagrams & Manuals
74055TA (400000000-410170999) 60in Z Master 4000 View Diagrams & Manuals
74055TA (410171000-411435715) 60in Z Master 4000 View Diagrams & Manuals
74055TA (411435716-999999999) 60in Z Master 4000 View Diagrams & Manuals
74056TE (400000000-408907972) 152cm Z Master 4000 View Diagrams & Manuals
74056TE (408907973-409854759) 152cm Z Master 4000 View Diagrams & Manuals
74056TE (409854760-409854775) 152cm Z Master 4000 View Diagrams & Manuals
74056TE (409854776-411423980) 152cm Z Master 4000 View Diagrams & Manuals
74056TE (411423981-411423984) 152cm Z Master 4000 View Diagrams & Manuals
74056TE (411423985-999999999) 152cm Z Master 4000 View Diagrams & Manuals
74942TE (400000000-402364842) Z Master Professional 6000 Series , With 152cm Rear Discharge Riding Mower View Diagrams & Manuals
74942TE (402364843-404319999) Z Master Professional 6000 Series , With 152cm Rear Discharge Riding Mower View Diagrams & Manuals
74942TE (404320000-999999999) Z Master Professional 6000 Series , With 152cm Rear Discharge Riding Mower View Diagrams & Manuals
Show More Compatible Models
This item works with the following types of products:
- Snowblower Parts
- Lawn Tractor Parts
- Lawn Mower Parts
This part replaces obsolete part #: 610410, 700172, 12981
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Does this fit my product?Questions & Answers for Key Assembly
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OEM stands for Original Equipment Manufacturer and means the part you’re buying is sourced directly from the manufacturer who made your product. At eReplacementParts, we sell only genuine OEM parts, guaranteeing the part you’re purchasing is of better design and of higher quality than aftermarket parts.
Our product descriptions are a combination of data sourced directly from the manufacturers who made your product as well as content researched and curated by our content & customer service teams. This content is edited and reviewed internally before being made public to customers.
Our customer service team are at the ready daily to answer your part and product questions. We have a dedicated staff with decades of collective experience in helping customers just like you purchase parts to repair their products.
All our part reviews are solicited directly from other customers who have purchased this exact part. While we moderate these reviews for profanity, offensive language or personally identifiable information, these reviews are posted exactly as submitted and no alterations are made by our team.
All our customer repair instructions are solicited directly from other customers just like you who have purchased and replaced this exact part. While we moderate these reviews for profanity, offensive language or personally identifiable information, these reviews are posted exactly as submitted and no alterations are made by our team.
Based on data from past customer purchasing behaviors, these parts are most commonly purchased together along with the part you are viewing. These parts may be necessary or helpful to replace to complete your current repair.
All our installation videos are created and produced in collaboration with our in-house repair technician, Mark Sodja, who has helped millions of eReplacementParts customers over the last 13 years repair their products. Mark has years of experience in selling and repairing both commercial and residential products with a specialty in gas-powered equipment.
This data is collected from customers who submitted a repair instruction after replacing this exact part. Customers can rate how easy the repair was to complete and how long it took. We aggregate this data to provide a repair rating that allows customers to quickly determine the difficulty and time needed to perform their own repair.
