L-Series

L4240 (DT/GST/HST), L4300 (DT/F), L4330 (DT/GST/HST), L4400 (DT/F), L4630 (DT/GST/HST), L4740, L5040, L5240, and L5740.

M-Series

M7060D and M6141.

Utility/Backhoe

L48 TLB (Tractor Loader Backhoe).

Excavators

KX121-3 (and Super Series), KX161-3, KX057, KX080-3, U45S.

Skid Steers: Bobcat S150, S160, S175, S185, and T190 (specifically for the IDI/Indirect Injection engine variants often labeled “M”).

Wheel Loaders

R510 (New Type), R520, R520S.

Generators

KJ-S150VX, KJ-T210VX, SQ-1200, SQ-3250.

Kubota Excavators

KX121-3, KX161-3, U45S (Super Series)

Bobcat Loaders

S150, S175, S185, T190 (with IDI V2403 engines)

Kubota Tractors

L4240, L4300, L4330, L4400, L4630

Generators

SQ-1200, SQ-3250, KJ-S150, KJ-T210

• Material : High-density Cast Iron
• Cylinders4Valves per Cylinder : 2 (1 Intake, 1 Exhaust)
• Combustion System : Direct Injection (DI)
• Weight : Approximately 24.5 kg (54 lbs)
• Injector Hole Type : Vertical (Direct-to-piston)

1G780-03042 Earlier Version: Common on older Tier 2/Early Tier 3 engines; interchangeable.

1G780-03040 Original Version: Often found on early Bobcat S175/S185 models.

1G780-03044 Current Successor: The most recent revision, often sold as the “Service Head.”

1G783-03040 Variation: Sometimes used in specific industrial or reefer unit specs.

1G780-03020 Caution: Often listed in error; ensure yours is the DI (Direct Injection) version.