This is a new, genuine Kubota sensor, part number 1J520-18600. Kubota’s parts catalog places it on the diesel particulate filter (DPF) differential pressure pipe, where it reads the pressure drop across the filter. Kubota lists it on DPF-equipped machines including the L3301, L3901, L3560 and L4060 tractors, MX5400 and MX5800 tractors, M5-091 tractors, SSV65 and SSV75 skid steers, SVL75-2 and SVL90-2 track loaders, and the KX040-4 excavator. Takeuchi sells the same sensor as K1J520-18600.

The ECU uses this reading to judge soot load and decide when to regenerate. A failed sensor, or a cracked, plugged or swapped sensing hose, can cause false high soot readings, frequent regeneration requests, DPF fault codes and derate. Some aftermarket listings call this part an intake air pressure sensor. Kubota’s catalog puts it on the DPF pressure pipe.

Specifications

Fits / Applications

• Kubota L3301, L3901, L3560 and L4060 tractors
• Kubota MX5400 and MX5800 tractors
• Kubota M5-091 tractors
• Kubota SSV65 and SSV75 skid steer loaders
• Kubota SVL75-2 and SVL90-2 compact track loaders
• Kubota KX040-4 excavator

Before replacing the sensor, check the DPF pressure hoses and pipes for cracks, soot plugging and swapped connections. After installing, clear codes and check the differential pressure reading with a scan tool.

Part Numbers & Cross Reference

Takeuchi K1J520-18600

Cross-reference numbers can change with engine serial, build year and emissions tier, so treat this list as a starting point. Send us your engine serial number and we will confirm the exact match against your build before anything ships. That check is free and takes a few minutes.

Frequently Asked Questions

Will 1J520-18600 fit my Kubota L3901 or SVL75-2?

Yes, Kubota lists it on both. The list of DPF-equipped machines also includes the L3301, L3560 and L4060 tractors, MX5400 and MX5800 tractors, M5-091 tractors, SSV65 and SSV75 skid steers, the SVL90-2 track loader and the KX040-4 excavator.

Is Takeuchi K1J520-18600 the same sensor?

Yes. K1J520-18600 is the Takeuchi number for the same sensor.

Is 1J520-18600 a DPF sensor or an intake air pressure sensor?

Kubota’s parts catalog places it on the DPF differential pressure pipe, where it reads the pressure drop across the filter. Kubota uses more than one pressure sensor on its DPF-equipped engines, so call 530-668-0818 with the machine or engine model and serial number and we will confirm the match.

What should I check before replacing the 1J520-18600 DPF pressure sensor?

Check the DPF pressure hoses and pipes for cracks, soot plugging and swapped connections. A cracked, plugged or swapped sensing hose can cause the same false high soot readings, frequent regeneration requests, DPF fault codes and derate as a failed sensor.

Related Parts

• Kubota D1803, V2403, V2607 & V3307 Mass Air Flow (MAF) Sensor | Genuine Kubota 1J520-10700
• Kubota D1803-CR & V2403-CR Common-Rail Fuel Injector | Bosch 0445110777 New (Kubota 1J801-53052)
• Kubota Common Rail Assembly 1J804-50603 for L3301 L3901 KX040-4 (Genuine)
• Kubota D1803-CR & V2403-CR Mechanical Fuel Feed Pump (KX040-4, U48-5) | Genuine Kubota 1J801-52030

Why Buy From Valley Fuel Injection

We are an authorized Kubota dealer and a diesel fuel-injection shop in Woodland, CA, working on diesel engines since 1993. When you call, you talk to people who know Kubota engines and can help you match the part number to your engine serial or machine model before you order. See our Kubota engine sales, parts and service.