847909 Regulator Spring | Genuine Volvo Penta Part

🔧 Product Description

Genuine Volvo Penta regulator spring rated at 1800 rpm, from the Fuel System group, weighing 0.01 kg and listed for 49 applications across the TD, TWD, TMD, TID, TAMD and TAD series. The 1800 rpm rating is the whole point of the part, as springs of other ratings look alike but set a different governed speed.

🚤 Compatibility

• Engine Family: TD, TWD, TMD, TID, TAMD, TAD

Full model list at the end of this description.

⚙️ Key Features

• Rated at 1800 rpm
• 0.01 kg
• 49 applications across six engine series
• 2 used per assembly

🔌 Function

Provides the calibrated opposing force inside the governor, balancing the flyweights so the injection pump holds the engine at its set speed as load changes.

⚠️ Common Signs of Failure

• Engine hunting or surging at governed speed
• Governed speed drifting away from the rated figure
• Sluggish recovery when load is taken up or dropped
• Coils rusted, pitted or visibly collapsed on removal
• Erratic idle or an engine that will not settle

🛠️ Service Notes

• Compression spring 848304 in this listing covers the 1500 and 1800 rpm settings and works with the governor, so check which spring the pump build actually calls for
• Governor calibration should be checked on a pump bench after any spring change rather than adjusted by eye

📦 Condition

• Genuine Volvo Penta part
• Brand new
• Supplied in original or equivalent packaging

🔎 Full Model Compatibility

Typically suits:

• Volvo Penta TID121KG, TID121KGP, TID121KP, TID121KPB, TID121L, TID121LG, TID121LGP, TID121LP, TID121LPB, TID121K, TID121K-87
• Volvo Penta TD121GGP-87, TD121G, TD121GG, TD121GGP, TD121GP, TD121GPB, TD121CHC, TD121CRC
• Volvo Penta TAMD122A, TAMD122A/C, TAMD122AF, TAMD122P-A, TAMD122P-B, TAMD122P-C
• Volvo Penta TID162AG, TID162AGP, TID162AP, TID162APB
• Volvo Penta TAMD162A, TAMD162C, TAMD162C-B
• Volvo Penta TWD1210G, TWD1210P, TWD1210PB
• Volvo Penta TD100CHC, TD100CRC
• Volvo Penta TWD1211P, TWD1211G
• Volvo Penta TAD121CHC
• Volvo Penta TAD1230G
• Volvo Penta TAD1231GE
• Volvo Penta TAD1232GE
• Volvo Penta TAMD74A
• Volvo Penta TD120HP
• Volvo Penta TD1210G
• Volvo Penta TMD122A
• Volvo Penta TWD1620G
• Volvo Penta TWD1630G