12V Shutoff Solenoid Valve 1G820-60022 – Verified Fitment for Kubota D722 D782 D902

Verified Cross-References — superseded Kubota numbers 1G820-60010, 1G820-60012, and 1G820-60020 traced to current 1G820-60022 with port and mounting checks on every unit before dispatch.

Technical Specifications

Application Suitability

Why the Same 12V Shutoff Solenoid Valve for Kubota D722 D782 D902 Cross Reference Number Ships in Multiple Variants

Supersession chains across Kubota engine generations mean four part numbers can refer to physically different solenoids, and only one variant fits your exact engine build.

I have seen excavators sit idle for days because a cross-reference table listed 1G820-60010 as a direct swap for 1G820-60022, but the earlier number carries a different port orientation on certain D722 production runs. Distributors copying tables from one another carry forward errors that compound over time [NEED_CITE: Kubota engine serial break points and part supersession documentation]. When a machine is already down on a quarry floor or port yard, a misidentified 12V shutoff solenoid valve for Kubota D722 D782 D902 cross reference becomes a costly delay rather than a simple replacement.

Fitment Coverage Across Kubota Compact Excavator Models

The 12V shutoff solenoid valve for Kubota D722 D782 D902 cross reference spans models from the K008-5 mini excavator up through the U17, covering machines that share the same engine family but differ in chassis generation and wiring harness layout. Each model year may introduce subtle changes to the connector type or cylinder head casting that affect whether the solenoid seats correctly. Confirming the engine serial number narrows the fitment window and prevents the common mistake of ordering by machine model alone. Our cross-reference verification traces the supersession path from 1G820-60010 through 1G820-60012, 1G820-60020, and finally 1G820-60022, so you know which numbers are truly interchangeable and which represent a physical change.

Interface Verification Before You Commit to an Order

The dimensional tolerance of ±0.05 mm on the solenoid body means the mounting flange aligns with factory-machined recesses on the D722, D782, and D902 cylinder heads — but only if the correct variant is selected. Port position relative to the fuel inlet gallery varies between early and late production engines, and installing a solenoid with the wrong port clocking causes fuel line interference or an incomplete seal. The dual EPDM O-rings meeting SAE J1926 standards compress into machined grooves, so even a slight axial misalignment from a mismatched body length creates a leak path [NEED_CITE: SAE J1926 O-ring seal groove dimensional requirements]. We check port orientation and body length against your specific engine serial before confirming the order, and sample units are available for physical trial fitment when you are sourcing for a mixed-model fleet.

Electrical and Thermal Parameters That Matter on Site

The Class H coil winding is rated to 180°C, which provides margin above the 85°C maximum ambient specification — important when the solenoid sits adjacent to the exhaust manifold on a compact excavator engine bay where radiant heat accumulates. The low-carbon steel armature core delivers the magnetic permeability needed for the >4.2 N holding force, ensuring the fuel cutoff engages reliably even when voltage dips during cranking. Response time under 35 ms means the solenoid cuts fuel within a single engine cycle of the key-off signal, preventing the dieseling that older, slower units allow. The 3 bar leak test pressure confirms the EPDM seals hold well above normal fuel rail pressure, so there is no seepage into the combustion chamber during extended idle periods.

What a Wrong Variant Costs Beyond the Part Price

A solenoid that bolts on but has the wrong port orientation forces the fuel line into a bend radius it was not designed for, leading to hose fatigue and eventual weeping at the fitting. An armature core with insufficient holding force may allow the plunger to flutter under vibration, producing intermittent fuel shutoff failures that mechanics chase through the injection pump before tracing the fault back to the solenoid [NEED_CITE: intermittent fuel shutoff failure diagnostic patterns in compact diesel engines]. Each misdiagnosis adds labor hours and keeps the excavator off the job while the real root cause goes unaddressed.

Why Buyers Source This Solenoid Through Our Counter

Own production on selected stop solenoid lines and qualified sourced supply on the remainder means every unit ships under one account and one six-month warranty, regardless of which reference number you order. Cross-reference verification covers the full supersession chain including discontinued numbers, so a buyer holding a worn 1G820-60010 nameplate can confirm the correct current replacement without guessing. Part identification works from a part number, a machine model, a photograph of the old unit, or even a painted-over nameplate image. Sample supply lets fleet operators trial-fit a single unit across their Kubota fleet before committing to a bulk order for multiple machines. The technical team confirms compatibility and variant selection against your engine serial, not just a catalog table.

Documentation & Verification

• Commercial invoice listing all cross-reference numbers against each line item
• Fitment sheet confirming engine serial and variant match for your machine
• Dimensional inspection record covering body length, port clocking, and O-ring groove depth
• Warranty terms stating six-month coverage against manufacturing defects
• Packing photographs showing each solenoid individually bagged with identification tag
• HS code and customs paperwork prepared for international aftermarket parts shipment

Fitment Check Before Installation

• Compare the new solenoid body length and port position against the removed unit before disconnecting the old one
• Verify the dual EPDM O-rings seat fully in the cylinder head recess without pinching or rolling
• Confirm the electrical connector pin count and locking tab orientation match the existing harness plug
• Test the 12V engagement by energizing the solenoid off-machine to verify audible plunger travel and >4.2 N holding force
• If port orientation does not align with the fuel gallery, halt installation and contact us with photos for variant recheck

How to Request a Fitment Confirmation

Send us your machine model, engine serial number, and a photograph of the existing solenoid or its nameplate. If the label is worn or painted over, a clear image of the cylinder head mounting area and the electrical connector is enough for our team to verify the correct variant and cross-reference chain before you place your order.

Frequently Asked Questions

Q: How do I confirm this solenoid fits my specific Kubota excavator model? A: Provide your machine model and engine serial number, and we cross-reference the supersession chain from 1G820-60010 through 1G820-60022 to confirm the exact variant. A photograph of the old solenoid or its nameplate helps us verify port orientation and connector type match your engine build.

Q: Are 1G820-60010, 1G820-60012, 1G820-60020, and 1G820-60022 fully interchangeable? A: These numbers represent a supersession chain across Kubota engine generations, and while they share the same functional role, physical differences in port position or body length exist between certain variants. We verify interchangeability against your specific engine serial before confirming any substitution.

Q: What if I only have the machine model and no readable part number? A: Machine model alone is often enough to narrow the fitment to two or three possible variants. Send a photograph of the cylinder head area where the solenoid mounts, and we can identify the correct port orientation and connector type from the casting features visible in the image.

Q: Can I order a sample to test fitment before placing a larger order? A: Yes, we supply single sample units at the one-piece minimum for physical trial fitment on your machine. This is especially useful for fleet operators managing multiple Kubota models across different engine generations who need to confirm compatibility before ordering stock.

Q: Why does the same base solenoid appear under multiple OEM reference numbers? A: Kubota updates part numbers across production runs and engine revisions to reflect changes in port orientation, connector type, or dimensional specifications. Each number in the chain corresponds to a specific engine build period, and we trace which variants are physically interchangeable for your machine.