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Description
Century AO Smith C420 Cap Start Rigid Motor, 1/2 HP, 1140 RPM, 115, 208-230V, 56 Frame, Replaced w/ Century C420ESFeatures: 40 degree C ambient REPLACED WITH CENTURY UC420ES Item: Belt Drive Motor, Motor Type: Capacitor Start, HP: 1 2, Nameplate RPM: 1140, Voltage: 115 208 230, Frame: 56, Enclosure: Drip Proof, Rotation: CW CCW, Hz: 60, Phase: 1, Speeds: 1, Service Factor: 1. 25, Insulation Class: B, Bearings: Ball, Base: Rigid, Shaft Type: Key, Shaft Number: 1, Shaft Length: 1. 875", Shaft Height: 3. 5", Shaft Dia.: 0. 625", "C" Dim: 12. 2, Protection: None,
- Features: 40 degree C ambient
REPLACED WITH CENTURY UC420ES
Item: Belt Drive Motor, Motor Type: Capacitor-Start, HP: 1/2, Nameplate RPM: 1140, Voltage: 115/208-230, Frame: 56, Enclosure: Drip Proof, Rotation: CW/CCW, Hz: 60, Phase: 1, Speeds: 1, Service Factor: 1.25, Insulation Class: B, Bearings: Ball, Base: Rigid, Shaft Type: Key, Shaft Number: 1, Shaft Length: 1.875", Shaft Height: 3.5", Shaft Dia.: 0.625", "C" Dim: 12.2, Protection: None, Thermal Protection: No, Cooling: Ambient.
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4.3 ★★★★★
Based on 10 reviews
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Product Reviews
★★★★★ 5
good product
Size: 16 AWG-100 ft
good product
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Reviewed in the United States on December 21, 2025
★★★★★ 5
Good product at a great price
Size: 16 AWG-100 ft
Used to wire my door speakers and it worked amazing
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Reviewed in the United States on May 21, 2026
★★★★★ 5
Smaller than the original, but works well.
When I received it, it was so small that I thought it was a toy, or maybe for some 4cyl engine. It is significantly smaller than the original one. When I looked closer, the mount holes did line up, so I tried it. I did have to get shorter mount bolts.
To my surprise, it works great! I don't know what the longevity will be, but it made it through a busy august!
Considering the price and how small it is, I might just buy a second one to keep on board. Just in case.
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Reviewed in the United States on September 14, 2025
★★★★★ 1
Warning!!!
I was so impressed after install!! Fired right up faster that it ever has in the past, had the boat out about 8 times and CACK!!! They say they will stand behind the product and replace it, but do I risk another day ruined on the river?
Btw, I have a Volvo penta 5.0 21.5' Larson I/O
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Reviewed in the United States on September 28, 2025
★★★★★ 5
Perfect fit and functioning. Excellent support
The starter fit perfectly, in my Mercruiser 4.3 from 2004, although it was awkward to replace on my engine due to space constraints. I had a few questions for the supplier and quickly received very descriptive answers. Now the starter works perfect in my boat. In all a very good choice which I really can recommend others.
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Reviewed in the United States on June 27, 2024