Replacement electric PTO clutch for SImplicity Citation models listed below. If unsure message us with your model number. 1 1/8” ID 6 7/16” Pulley- 15% restock on Clutches. 1694768 – Citation, 23HP Briggs & Stratton Zero-Turn Rider. 1694769 – Citation, 21HP Briggs & Stratton Zero-Turn Rider. 2690369 – Citation, 21HP Briggs & Stratton Zero-Turn Rider w/ 48 Mower Deck. 2690370 – Citation, 23HP Briggs & Stratton Zero-Turn Rider w/ 52 Mower Deck. 2690444 – Citation, 21HP Briggs & Stratton Zero-Turn Rider w/ 48 Mower. 2690445 – Citation, 23HP Briggs & Stratton Zero-Turn Rider w/ 52 Mower.