Racor Water Sensor KIT-12V | RK-12870
Free returns on all eligible orders
You have 30 days to request a return. All sale items are final sale.
Racor RK-12870 12V Water Detection Kit
Racor RK-12870 is a 12V DC under-dash water-detection kit for compatible Racor diesel fuel filter/water separators. Its warning light and buzzer alert the operator when water reaches the probe. Racor technical reference.
Key Features
- 12V DC detection module
- Under-dash light and audible buzzer
- Includes RK21069 water-in-fuel probe
- Alarm resets after collected water is drained
- Manufacturer part number: RK-12870
Product Compatibility
Confirm the separator bowl has the correct probe port and that the electrical system is 12V. Select the detector and probe as a matched Racor system.
When This Part Needs Replacement
Service the system if the alarm fails its prescribed test, wiring is damaged or the probe leaks. A water warning calls for draining and checking the fuel, not simply replacing the detector.
Installation Notes
Follow the kit wiring diagram and isolate electrical power during installation. Drain water into a suitable container and inspect the probe seal. Do not wire the probe directly to supply voltage.
Manufacturer Schematic / Parts Diagram
View Racor parts diagram and technical data
Parts Desk Insight
This is the complete 12V warning kit, while RK21069 by itself is only the sensing probe. If adding an alarm to a filter that has none, confirm both the bowl connection and detector wiring before choosing parts.
- Brand: Racor
- Manufacturer part #: RK-12870
- Sold as: EA
Shipping information
In-stock and OEM parts: ship same or next business day.
Supplier-stock items are usually ready for pickup or shipping within 24 hours of ordering.
Special-order timing may vary.
Returns & warranty
Returns & Satisfaction Guarantee
We stand firmly behind the quality of every product we sell. Your confidence matters to us — and we back it with a straightforward 30-Day Satisfaction Guarantee.
If you are not fully satisfied, you may request a return within 30 days of delivery. All returns must receive pre-approval prior to being sent back. Unauthorized returns will not be accepted.
To qualify for a return:
Item must be in new, unused condition
Product must be in its original packaging
All parts, components, hardware, manuals, and accessories must be included
Packaging must be undamaged and suitable for resale
Important:
Electronics are strictly inspected. No returns on open-box electronics. Exceptions may apply only with prior written approval. Any electronic unit that has been installed, powered, activated, or altered may not be eligible for return.
We are serious about product integrity — and equally serious about taking care of our customers. If there is ever a product issue, contact us immediately so we can make it right.
For return authorization, please contact our support team before shipping anything back.