Product Overview

The Genuine YANMAR Glow Plug Relay (Part No. 119650-77911) is a high-amperage electrical switching component essential for the cold-start sequence of diesel engines. This heavy-duty 12V relay acts as the high-power bridge between the battery and the glow plugs, triggered by the pre-heat timer.

Engineered to handle the intense current draw required to heat diesel combustion chambers, this original Yanmar part prevents voltage drops and ensures that your glow plugs reach their ignition temperature rapidly and safely.

Interchangeability & OEM Cross-Reference

This relay is a "universal" power component used by numerous global manufacturers who build equipment around Yanmar diesel blocks. It is fully interchangeable with or replaces the following OEM part numbers:

• YANMAR: 119650-77911, 119650-77910, 11965077911

• KOMATSU: YM119650-77911, YM119650-77910

• JOHN DEERE: M802471, AM879430

• TAKEUCHI: 119650-77911

• KUBOTA: 16616-60210 (Cross-application for specific utility series)

• KOHLER: 25 755 33-S (Relay component)

• NGK: G71RR (Technical equivalent)

Technical Description

• Switching Capacity: Designed for high-current (Amperage) surges typical of 3 and 4-cylinder glow plug arrays.

• Contact Material: Silver-alloy internal contacts to prevent "pitting" and sticking under high heat.

• Sealing: Environmental protection against moisture, oil, and dust, rated for engine-bay mounting.

• Voltage: 12V DC.

• Terminal Configuration: Standardised 4-pin or 5-pin layout (series dependent) for secure "click-in" installation.

• Vibration Resistance: Internal damping to withstand the harmonic frequencies of high-torque diesel engines.

Universal Application Range

The 119650-77911 Relay is the primary power switch for the legendary Yanmar TNE and TNV Series engines, found in construction, agricultural, and marine sectors.

Compatible Engine Series:

• Yanmar 2-Series: 2TNV70, 2TNE68.

• Yanmar 3-Series: 3TNV70, 3TNV76, 3TNV82, 3TNV84, 3TNV88.

• Yanmar 4-Series: 4TNV84, 4TNV88, 4TNV94, 4TNV98 (Turbo and naturally aspirated).

• Marine: Yanmar 2YM, 3YM, and 3JH series.

Global OEM Trademarks & Equipment:

• Mini-Excavators: Komatsu (PC27, PC35, PC45, PC55MR), Takeuchi (TB216, TB235), Hitachi (Zaxis series).

• Compact Tractors: John Deere (2210, 4010, 4110, 4115), Landini, and Yanmar SA series.

• Skid Steers: Gehl, Mustang, and ASV loaders.

• Industrial: Wacker Neuson dumpers, Ammann rollers, and Carrier/Thermo King refrigeration units.