This is the genuine Kubota spark plug, part number EG523-67710. Kubota’s parts books list it on the ignition coil page of the WG1605, WG1903, WG2503 and WG3800 gas and LPG engines, one per cylinder.
Kubota’s books show it on the same page as ignition coil EG523-67090. Order one for each cylinder: three on a WG1903, four on a WG1605, WG2503 or WG3800.
Confirm Fitment Before You Order
The engines named on this page are the ones whose Kubota parts books we have checked. For any other engine, send us the engine model and serial number and we will read the part off the Kubota parts list. Call 530-668-0818 and we will confirm the exact match at no charge before anything ships.
Specifications
| Part number | EG523-67710 |
| Brand | Kubota |
| Condition | New, genuine, in original packaging |
| Warranty | Kubota genuine parts warranty: 1 year against defects in materials or workmanship. |
| Type | Spark Plug |
| Kubota name | SPARK PLUG |
| Used with | Kubota ignition coil EG523-67090 |
| Engines | Kubota WG1605, WG1903, WG2503, WG3800 |
| Quantity | One per cylinder: 3 on a WG1903, 4 on a WG1605, WG2503 or WG3800 |
Fits / Applications
- Kubota WG1605-G-E3: 4 per engine
- Kubota WG1903-G-E3 and WG1903-GL-E3: 3 per engine
- Kubota WG2503-G-E3 and WG2503-GL-E3: 4 per engine
- Kubota WG3800-G-E3 and WG3800-GL-E3: 4 per engine
- Other Kubota engines: send us the engine model and serial number and we will check the parts list
Tighten to the figure in the Kubota workshop manual for your engine.
Part Numbers & Cross Reference
Kubota EG523-67710.
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
How many do I need?
One per cylinder: 3 on a WG1903, 4 on a WG1605, WG2503 or WG3800.
Which coil does it go with?
Kubota’s parts books show it on the same page as ignition coil EG523-67090, and list the same number of plugs and coils for each engine.
My engine is not named here. Will it fit?
Send us the engine model and serial number and we will read the part off the Kubota parts list for that engine.
Related Parts
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- Kubota D1105, V1505, D902 & D722 Alternator, 12V 40 Amp with P Terminal | Genuine Kubota 1E994-64010
- Kubota V3800 Engine & M6060, M7060 Tractor Alternator Assembly, 12V 100 Amp | Genuine Kubota 1J431-64013
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.
UPS to all 50 states, including Alaska and Hawaii. Your rate shows at checkout. Questions on fitment? Call 530-668-0818.
Pricing covers the unit itself. Any applicable sales tax is additional; shipping is calculated at checkout. Buying tax-exempt? Qualifying diesel repair shops, fleets, farms, and agricultural operations can purchase tax-free. Set up tax-exempt purchasing once and every qualifying order is tax-free going forward.





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