L-Series

L4300DT, L4300F, L4330DT, L4330GST, L4330HST-C, L4630DT, L4630GST, L4630HST, L48 (Tractor/Loader/Backhoe), L5030GST, L5030HST.

M-Series

M4800SU-F, M4800SUD-F.

Kubota

V2403-M (Naturally Aspirated & Turbocharged), V2203-M(Including DI versions), V2003-M, V1903-M

Kubota Tractors

L3940, L4060, L4240, L4300, L4330, L4630, L48, L5030, L5040, L5740, MX5000.

Kubota Excavators

KX121-3, KX161-3.

Bobcat Equipment

331, 334, 337, 341, 435, E45, S150, S175, S185, T190 (when equipped with the V2003 or V2403 engine).

• Material – High-Grade Nitrile Rubber (NBR) or Viton-composite
• Cross-Section – Molded “D-profile” or “Beaded” for superior compression
• Engine Series – Kubota 03-M Series (4-Cylinder)
• Installation Type – Dry-fit (No RTV sealant required on straight runs)
• Oil Resistance – Rated for synthetic and mineral-based diesel oils

1G911-14522Current Successor: The most modern revision and the standard replacement.

1G911-14521Intermediate Revision: Often found in “New Old Stock” (NOS) inventories.

1G911-14523Latest Update: Some regions now use this as the primary service part.

19077-14520Legacy Reference: Sometimes cross-listed for older V2203 indirect injection models.

EG591-14520Alternative Series: Used in certain Tier 4 or emissions-compliant variants.