Description
xPart Overview
The 52CP34-03 Fuel Rail Pressure Sensor (FRPS) / Regulator is a high-pressure sensor element designed for diesel fuel systems on Yale forklifts and compatible industrial / off-highway equipment. The sensor monitors the real-time pressure inside the common rail and reports the value back to the engine ECU; on many common-rail platforms the same part also acts as the rail-pressure regulator. KOEEP supplies this as a brand-new aftermarket replacement, cross-referenced to OEM 52CP3403 / 4212000, with the matching electrical connector and thread profile for direct installation.
Typical failure symptoms include hard start, rough idle, reduced power, an active check-engine / fault code (e.g. P0190-P0193 family on engines using a similar FRPS), or a fuel-system derate / limp mode under load.
Vehicle Compatibility
| Make | Model / Series | Engine | Notes |
|---|---|---|---|
| Yale | Forklift series using 52CP3403 / 4212000 reference | Diesel common-rail (verify displacement) | Industrial / warehouse forklift, verify connector and thread |
| Yale | Other Yale industrial units with 52CP34-03 / 4212000 reference | Diesel common-rail | Cross-reference with OEM 52CP3403 / 4212000 |
Yale forklift model coverage is broad across the company's diesel IC-truck and warehouse-truck lines. Please cross-reference the OEM part number on the failed sensor (52CP3403 / 4212000 / 52CP34-03) and confirm the connector type and thread pitch before ordering. This part is intended for diesel common-rail fuel systems only.
Key Specifications
| OEM Part Number | 52CP34-03 / 52CP3403 / 4212000 (cross-reference) |
| Part Function | Diesel common-rail fuel rail pressure sensor (ECU feedback element) |
| Output Signal | Analog 0-5 V pressure signal to ECU (verify against your ECU calibration) |
| Operating Pressure Range | High-pressure common-rail range (verify against your rail spec) |
| Connector | Plug-in matching OEM 52CP3403 / 4212000 harness |
| Material | Stainless steel body with sealed sensing element and O-ring |
| Condition | Brand New Aftermarket |
| Warranty | 1 Year |
Why Choose This Part?
- Cross-Referenced to OEM 52CP3403 / 4212000: Matches the OEM sensor's thread, sealing profile, and electrical pin-out for direct installation on the fuel rail.
- Restores Common-Rail Pressure Feedback: Resolves P0190-P0193-family fault codes, hard-start, rough idle, and derate conditions caused by a drifting or failed rail-pressure sensor.
- Rigorous QC: Each sensor is pressure-cycled and checked for output linearity, leakage, and insulation before shipment.
- 1-Year Warranty & Free Worldwide Shipping: Full 12-month coverage plus free shipping on every order.
How to Order
Click Add to Quote above, or email us at support@koeep.com with the part number 52CP34-03 / 52CP3403 / 4212000 and your Yale forklift model / serial number / engine. Our parts team will respond within 24 hours with availability, shipping ETA, and pricing.
Reminder: the fuel rail must be fully de-pressurized and the engine must be off before removing the sensor. Replace the sealing washer / O-ring at the same time, and re-test for leaks before returning the engine to service.
Ready to order this part?
Click Add to Quote or email support@koeep.com with the SKU and your equipment details.
Request a Quote →Shipping & Return
xReturns Policy
You may return most new, unopened items within 30 days of delivery for a full refund. We'll also pay the return shipping costs if the return is a result of our error (you received an incorrect or defective item, etc.).
You should expect to receive your refund within four weeks of giving your package to the return shipper, however, in many cases you will receive a refund more quickly. This time period includes the transit time for us to receive your return from the shipper (5 to 10 business days), the time it takes us to process your return once we receive it (3 to 5 business days), and the time it takes your bank to process our refund request (5 to 10 business days).
If you need to return an item, simply login to your account, view the order using the "Complete Orders" link under the My Account menu and click the Return Item(s) button. We'll notify you via e-mail of your refund once we've received and processed the returned item.
Shipping
We can ship to virtually any address in the world. Note that there are restrictions on some products, and some products cannot be shipped to international destinations.
When you place an order, we will estimate shipping and delivery dates for you based on the availability of your items and the shipping options you choose. Depending on the shipping provider you choose, shipping date estimates may appear on the shipping quotes page.
Please also note that the shipping rates for many items we sell are weight-based. The weight of any such item can be found on its detail page. To reflect the policies of the shipping companies we use, all weights will be rounded up to the next full pound.
Related manufacturers
- Choosing a selection results in a full page refresh.