SKU: 20474345033

JANDY HIGH-LIMIT SWITCH ASSY - R0457400

$43.61 $48.45
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Ships within 48 hours · Estimated delivery Aug 14 - Aug 19

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Description

JANDY HIGH-LIMIT SWITCH ASSY - R0457400The Jandy R0457400 High Limit Switch Assembly is a critical OEM component that pool service professionals rely on for safe, reliable heater operation. This wire harness assembly provides essential electrical connection between high limit switches and the heater's control board, ensuring proper temperature regulation and preventing dangerous overheating conditions. Professional Service Benefits Designed for demanding commercial and residential pool

The Jandy R0457400 High-Limit Switch Assembly is a critical OEM component that pool service professionals rely on for safe, reliable heater operation. This wire harness assembly provides essential electrical connection between high limit switches and the heater's control board, ensuring proper temperature regulation and preventing dangerous overheating conditions.

Professional Service Benefits

Designed for demanding commercial and residential pool environments, this genuine Jandy part reduces callback risks and protects your service reputation. The durable copper core wiring with PVC/PE insulation withstands harsh pool chemical environments, while the precise OEM specifications ensure perfect fit and reliable performance on every installation.

Why Pool Contractors Choose MT Pools

MT Pools understands that heater repairs can't wait. Our superior customer service includes same-day shipping on in-stock OEM parts, technical support from experienced pool professionals, and wholesale pricing that protects your profit margins. Join thousands of contractors who rely on our daily recurring customer support.

Frequently Asked Questions

Which Jandy heater models use the R0457400 switch assembly?

The R0457400 is compatible with Zodiac Jandy Legacy LRZE and LRZM models (125, 175, 250, 325, 400) and LXi Low NOx models (250, 300, 400).

Are there substitute part numbers for this assembly?

Yes, substitute numbers include 52337023375, 6204-217, 633715, LAR-151-1212, and 47-295-1180, but we recommend using genuine OEM R0457400 for best results.

What happens if the high-limit switch assembly fails?

A failed high-limit switch assembly can cause heater shutdown, temperature regulation issues, or safety concerns. Immediate replacement with genuine OEM parts is essential.

Does MT Pools stock this part for immediate shipping?

Yes, MT Pools maintains inventory of critical OEM parts like the R0457400 with same-day shipping available for in-stock items to keep your service calls on schedule.

Order Your OEM Parts Today

Don't risk callbacks with aftermarket parts. Trust MT Pools for genuine OEM components, expert technical support, and the superior customer service that keeps your business running smoothly.

Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. Standard Shipping : 3-10 business days
  • If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
  • Please click here for more details>>> Return & Exchange Policy
SKU: 20474345033

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4.2 ★★★★★
Based on 13 reviews
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Product Reviews
M
Verified Purchase
Mopardodgegirl
Grantham, US
★★★★★ 5
It works! Quality pillow.
Size: Standard (1 Count), Color: Original White (Cooling)
This does actually provide a cooling effect, and it's very comfortable! The accompanying literature is helpful too. I believe this to be a quality pillow for the price.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on June 2, 2026
J
Verified Purchase
jin
Alexandria, US
★★★★★ 5
Most comfortable pillow I’ve ever slept on
Size: Queen (1 Count), Color: Crescent White(cooling)
This is the most comfortable pillow I have ever slept on. It doesn't mash down like other pillows. Cradles my neck perfectly plus it’s cool. I broke my neck a couple of years ago and this pillow feels very good and comfortable. Definitely recommend to everyone. Ive used it since May and it’s retained its shape.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on June 6, 2026
A
Verified Purchase
AreTrue
Waukegan, US
★★★★★ 4
Smell
Size: Queen (2 Count), Color: Original White (Cooling)
The fact that there are not more comments on the smell of these pillows has me worried about some of yall. Listen, I LOVE the weight, and the firmness, it’s perfect for that. However, these pillows are RANK. They have a very strong mildew-ish smell that lingers. I took the outer cover off and washed it and let the pillow air out for a few days, the smell is still very strong when you press your face against it, which one does because it is in fact designed for that purpose. It smells so bad. It’s nauseating. I can smell it through two pillowcases and blanket that I threw on top of them hoping an extra layer would trap the smell. I’ll bake them in the Texas sun tomorrow and hope that helps, because otherwise these are the perfect pillows for someone who wants to feel like they are hugging a torso but can’t stand the sound/feel of someone else breathing. I don’t know…4 stars, if the smell goes away I’ll come back. Update: many many days later. Either they don’t really smell anymore or I got use to it. They’ve held their firmness and shape well. I like them.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on March 9, 2026
S
Verified Purchase
Samantha
San Leandro, US
★★★★★ 5
Actually Cooling Pillow
Size: Queen (1 Count), Color: Original White (Cooling)
This is a really nice pillow, I was worried it would be too soft or too firm but it's just right and it's actually cooling, it feels cool every time I touch it. I've noticed an improvement in sleep since using it. Would recommend!
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Reviewed in the United States on May 27, 2026
T
Verified Purchase
Tyler and Kaela
Carnegie, US
★★★★★ 5
Repurchased in King Size – Still Love These Cooling Pillows
Size: King (2 Count), Color: Original White (Cooling), Size: King (2 Count), Color: Original White (Cooling)
After using the queen-size version of these pillows for over a year, we purchased the king-size set when we upgraded to a king mattress. Both my husband and I really like them. The cooling feature works well, and we like that each side feels different—when I run cold, I use the softer bamboo side, while my husband prefers the cooler side since he tends to sleep hot. They fit well in our king-size pillowcases and feel supportive in all sleeping positions, whether I’m on my stomach, side, or back. I also appreciate that you can remove some of the filling to adjust the firmness. The covers are washable, which makes them easy to maintain. Overall, we’re very happy with this repurchase and the long-lasting comfort.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 15, 2026

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