This is a new, genuine Kubota DPF muffler, part number 1J050-18100. Kubota’s parts list calls it MUFFLER,COMP(DPF), the complete diesel particulate filter muffler as one assembly. Kubota dealer catalogs list it for one machine, the F3990 front mower, which runs the four-cylinder 1.5 L V1505 diesel.

A DPF muffler is replaced when the filter is loaded with ash that regeneration cannot burn off, when the filter element is cracked or melted, or when it is fouled with oil or coolant. Frequent regenerations, a DPF warning, low power and high exhaust back pressure are the usual signs. Find the cause first. Over-fueling, an engine that burns oil, a blocked pressure pipe or a failed sensor will ruin a new muffler the same way.

Specifications

Fits / Applications

• Kubota F3990 front mower with the Kubota V1505 diesel

Kubota’s F3990 parts list shows the exhaust temperature sensors, the differential pressure sensor and the pressure pipes in their own groups, apart from the muffler, so plan to move them over or replace them. Check the pressure pipes and hoses for cracks and blockage, and fix whatever loaded or damaged the old DPF before you put the machine back to work.

Part Numbers & Cross Reference

Kubota 1J050-18100

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

What does the Kubota 1J050-18100 fit?

Kubota dealer catalogs list it for the Kubota F3990 front mower, which runs the V1505 diesel. They do not list it for any other model.

Is this the whole DPF or only the filter?

It is the complete DPF muffler. Kubota’s F3990 parts list shows it as one assembly, MUFFLER,COMP(DPF). DPF filter kit 1J070-18930 is a different part for the F3710, LX3310, LX3520, LX4020 and ZD1611, and it is not listed for the F3990.

Do the sensors come with the muffler?

Kubota’s F3990 parts list shows the exhaust temperature sensors and the differential pressure sensor as separate parts, so plan to reuse or replace them. Call 530-668-0818 with your serial number and we will look them up.

Is it new or remanufactured?

New, genuine Kubota.

Related Parts

• Kubota L, MX, M, SSV, SVL & KX DPF Differential Pressure Sensor | Genuine Kubota 1J520-18600
• Kubota DOC Catalyst Kit 1J801-18940 for KX057-4, U55-4, R530 (Genuine)
• Kubota V1505-E4B Diesel Engine | New Tier 4 Final | Fits Toro Reelmaster, Jacobsen LF550, JLG

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 we check the part number against your engine serial or machine model before anything ships, so the right part arrives the first time. See our Kubota engine sales, parts and service.