Pump capacitor fitment

Davey SJ35-04 Capacitor

The Davey SJ35-04 is a 0.37 kW single-phase pressure pump (jet) commonly found in well & domestic pumps setups. Its motor runs on a 13µF 500V motor-run capacitor in a CBB60-style can: here's the exact replacement and how to confirm it.

Pump type: pressure pump (jet)
Motor: 0.37 kW · single-phase
Run capacitor: 13µF · 500V · CBB60
Tolerance: ±5%
Application: Well & domestic pumps
Also sold as: SJ35-04, SJ35, SJ35-04PC, SJ35-04/LOP
Fitment source: Manufacturer-documented

Manufacturer-documented13µF · 500V

The Davey SJ35-04 pressure pump (jet) uses a 13µF 500V motor-run capacitor (CBB60-style): it's the part that helps the single-phase motor start and keep running smoothly. We source this value from manufacturer / supplier documentation. Match the replacement to 13µF (about 11.7-14.3µF) at 500V or higher; the checklist below covers how to confirm it against your own capacitor.

Matching capacitor

We don't currently stock this exact value (13µF 500V). Browse the closest matches or ask us. We can usually source it.

How to be sure you get the right one

µF must match: the SJ35-04 needs 13µF (about 11.7-14.3µF), within ±5% of the label. Too low and the motor won't start; too high and it runs hot.
Voltage can go up, never down: a 500V (or higher) cap is correct here; a 450V part safely replaces a 370V or 440V one. Don't fit below 500V.
Check the terminal + size: make sure the new cap physically fits the housing and the connections match (or use a spade adapter).
When in doubt, read your old cap: the printed µF and voltage on the part you're replacing is the final word.

Common questions - Davey SJ35-04 capacitor

What capacitor does the Davey SJ35-04 use?

A 13µF 500V motor-run capacitor (CBB60-style). Always confirm against the rating printed on your existing capacitor before ordering.

Can I fit a higher-voltage capacitor in the Davey SJ35-04?

Yes, voltage can be equal or higher, never lower. A capacitor rated 500V or above is fine (450V is the usual choice), as long as the µF still matches (13µF).

Other Davey pump capacitors

Replacing the capacitor on a different Davey? These models have a confirmed or documented fitment too:

Browsing rather than replacing? All well & domestic pumps capacitors · Pump capacitor guide

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