Taco 555-050RP Zone Valve Power Head Replacement - Reliable Fit

In this review of the Taco 555-050RP Zone Valve Power Head Replacement Part the bottom line is clear: it is a straightforward, reliable option for homeowners and service techs who need a quick swap for Taco Series 570 and 550 zone valves. The reviewer finds the part keeps existing systems working without fuss and is especially useful when a noisy or failed power head threatens heating performance. Installation is fast and the manual open lever plus twist-off head make servicing simple for anyone familiar with hydronic heating components.

Key Features

• Direct Replacement Compatibility: Fits Taco Series 570 zone valves (570, 571, 572, 573) so it drops in where the original power head failed, avoiding valve body replacement.
• Also Works with 550 Series: Compatible with Taco Series 550 valves (555, 556, 557) to cover multiple valve lines and reduce parts stocking needs for repair techs.
• Gold Series Reliability: Built to the established Gold Series standard for hydronic heating, offering dependable operation in everyday heating systems.
• Quiet Operation: Operates with low noise, which helps maintain comfortable living spaces without the hum or click associated with failing heads.
• Easy Serviceability: The manual open lever and twist-off head design make installation and future servicing faster and less intrusive.

Who It's For

The 555-050RP is aimed at homeowners, HVAC service professionals, and DIYers who already have Taco Series 570 or 550 zone valves and need an economical, like-for-like replacement for a failed power head. It is particularly useful when the valve body is sound and only the motorized head needs replacement, saving time and money compared with a full valve swap.

Those who need a complete valve body replacement, a different control protocol, or a valve for non-Taco systems should look elsewhere. Also, users prioritizing long-term heavy-duty commercial duty cycles may want to verify lifecycle expectations for their specific application before relying solely on this part.

Pros & Cons

Pros

• Easy to install and service with a twist-off head and a manual open lever that speeds repairs.
• Good fit and function for original Taco valve bodies, restoring heat delivery reliably.
• Quiet operation and consistent performance in residential hydronic systems.
• Cost-effective replacement option compared with replacing the entire valve assembly.

Cons

• Durability has mixed feedback from some users, so occasional replacement may be required over long service lives.

Specifications

Product	Taco 555-050RP Zone Valve Power Head
Compatible Valve Series	Taco 570 Series and 550 Series
Fits Models	570, 571, 572, 573, and 555, 556, 557
Series	Gold Series hydronic heating
Service Feature	Manual open lever and twist-off head for easy installation
Application	Hydronic heating zone valve replacement

Our Verdict

The Taco 555-050RP is a pragmatic replacement part for anyone keeping a Taco hydronic zone system running. It restores heat delivery without replacing the valve body, is simple to install, and delivers quiet operation, making it a good value for homeowners and service techs who want a fast repair solution.

Frequently Asked Questions

Will this power head fit my Taco 571 valve?
Yes, it is listed as compatible with Taco 571 and other 570 Series valve bodies and will replace the existing head.

Is installation difficult for a non-professional?
Installation is generally straightforward; the twist-off head and manual open lever let a DIYer or technician swap the part in minutes, often with just a few screws.

Does this replace the entire valve?
No, this part replaces the power head only; the valve body remains in place and must be in good condition to reuse.