Where to buy
 | eBay | Generac Portables Parts Tune Up Kit Air Filter 73111, RC12YC Spark Plug GTK1326 | $12.90 | View → |
 | Amazon | Hipa 10 PACK RC12YC Spark Plug for BS 491055S 491055 491055T 692051 792015 5066 Kohler 12 132 02-S John Deere M78543 M87543 | $19.99 | View → |
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Supersessions & cross-references
⚠ Superseded — replaced byRC14YC Amazon $14.66 eBay $10.00
Replaces (older)072347 Amazon $34.90 eBay $1.99
Cross-reference (aftermarket)070185ES Amazon $16.99 eBay $30.00 FridayParts $22.99 0J8478S Amazon $17.99 eBay $16.00 KuduParts $15.00
Supersessions and aftermarket cross-references from marketplace/supplier listings — treat as leads. Verify the exact part for your serial number before ordering.
Engines using RC12YC
10Generac GN-410Generac G-Force 1000 SeriesGenerac GH-410Generac GT-999Generac NP-50G/LPKohler Command CH (Horizontal Crankshaft)Generac GT-990Generac G-Force 800 SeriesBriggs & Stratton Professional SeriesBriggs & Stratton Not explicitly stated in the document
Generator sets using RC12YC
9Generac 15 kW EcoGenGenerac PRIMEPACT 50Generac IM-72Generac NP-50GGenerac 8.1 GNGenerac Q-40GGenerac NP-50LPKohler CH5Kohler CH6