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Description
87F16 Furnace Primary Limit Switch up to 140°F - For Lennox Furnaces - Replaces 87F16 87F1601 L140-30F 36T01B387F16 Furnace Primary Limit Switch up to 140F Key Features Primary high limit safety control for forced air furnaces Activates at a fixed temperature of 140F (60C) to prevent overheating Automatically resets at 110F (43C) Switch configuration: SPST (Single Pole, Single Throw), normally open contacts Probe insertion length: 3 inches Replaces Cross Reference Part Numbers 87F16 87F1601 L140 30F L140F 40 36T01B3 42155 A1247 Compatibility & Fitment
87F16 Furnace Primary Limit Switch up to 140°F
Key Features
- Primary high-limit safety control for forced-air furnaces
- Activates at a fixed temperature of 140°F (60°C) to prevent overheating
- Automatically resets at 110°F (43°C)
- Switch configuration: SPST (Single Pole, Single Throw), normally open contacts
- Probe insertion length: 3 inches
Replaces / Cross-Reference Part Numbers
- 87F16
- 87F1601
- L140-30F
- L140F-40
- 36T01B3
- 42155
- A1247
Compatibility & Fitment
- Designed as a direct replacement for specific Lennox brand furnaces.
- Verify fitment by confirming the part number on your original switch or in your equipment's service manual.
When to Replace
- Furnace blower runs continuously after the heating cycle has stopped.
- Heating system short-cycles or shuts down prematurely.
- Furnace fails to produce heat or ignite the burners.
- Control board displays a fault code indicating an open limit switch.
Installation Tips
- Disconnect all electrical power to the furnace before servicing.
- Locate the limit switch, typically mounted on the furnace plenum near the heat exchanger.
- Note wire connections before removing the old switch.
- Install the new switch, secure it with the mounting screws, and reconnect the wires to the terminals.
- Restore power and test the furnace through a complete heating cycle to ensure proper operation.
Shipping Notes
- Free Standard Shipping on $100+ Orders to the USA.
- Except Preorder products are shipped in 48 hours.
- Delivery to the USA:
- 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
4.4 ★★★★★
Based on 2288 reviews
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Product Reviews
★★★★★ 1
Not compatible
Color: for X3 2018-2021，X4 2019-2021【10.3 inch Screen】
Nice, but it didn't fit my X3.
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Reviewed in the United States on October 30, 2025
★★★★★ 5
The fit is perfect and is a sold mounting system
Custom fit for 2022 Tacoma, fit exactly. Very sturdy mount and took seconds to install. All metal with the exception of a adjustment knob. Quality hardware. More expensive than a lot of mounts but most are cheap plastic and are not nearly as solid and sturdy as the Offroam.
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Reviewed in the United States on October 15, 2025
★★★★★ 5
FINALLY a decent phone mount!!!
I’ve tried about 5 different phone mounts in my 2018 Tacoma and ended up throwing them all away. They’re either too bulky, too weak to hold the phone, awkward or just won’t stay in place. I won’t install a holder that requires adhesive or screws into the dash (or anywhere) in my truck. This holder is the answer. Fits perfectly, doesn’t damage your vehicle. Holds the phone really solidly. This is a very sturdy mount.
It’s a bit pricy in comparison to other phone mounts out there. IMO, it’s worth every penny. Materials are far superior to your typical mount, which I’m sure drives up the manufacturing costs. Again, worth every penny. Also, it’s a small business based in the US. Love supporting our small businesses.
GREAT MOUNT!!!
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Reviewed in the United States on November 11, 2022
★★★★★ 5
This is it
For the longest time I’ve STRUGGLED with finding a mount the works in my Tacoma. I don’t do off reading but every mount I use just can’t hang!! I got this and immediately impressed with the build quality. It’s entirely metal and can tell it’s sturdy. It took me 1 minute to install and the give you the one tool you need to install. I have an iPhone 13 Pro Max that baby isn’t going anywhere. You can adjust it with out unscrewing anything and it stays put. If you have a Tacoma stop wasting money on cheap mounts this is the last one you need I promise you
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Reviewed in the United States on June 29, 2024
★★★★★ 5
The only phone mount for a taco
This is a really quality product. So quality that I wish they made this for some of my other cars, I don't ever wanna use another phone holder. I was a bit skeptical on the longevity of the spring that holds it open, but a few months later and it feels just as sturdy as new. Fit is immaculate, the phone stays put. Worth the price. You will see when you see the machine finish on this product.
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Reviewed in the United States on March 25, 2025