6885720 Compression Spring | Genuine Volvo Penta Part

🔧 Product Description

Genuine Volvo Penta compression spring from the Fuel System group, weighing 0.032 kg and listed for 56 applications across TAMD, AD, D, TMD, TD and MD series engines. It supersedes part number 840835 and sits in the same fuel group as shims 6885730 and 6885739.

🚤 Compatibility

• Engine Family: TAMD, AD, D, TMD, TD, MD, KAD, KAMD

Full model list at the end of this description.

⚙️ Key Features

• 0.032 kg
• Supersedes 840835
• 56 applications across six engine series
• Set with shims 6885730 at 1.68 mm and 6885739 at 1.84 mm

🔌 Function

Provides the calibrated load that sets how a fuel system component responds to pressure or movement.

⚠️ Common Signs of Failure

• Setting drifting so the engine runs rich, lean or hunts
• Spring found collapsed, distorted or broken
• Component sticking or slow to respond
• Corrosion pitting on the spring wire
• Fuel delivery out of specification on test

🛠️ Service Notes

• Shims 6885730 at 1.68 mm and 6885739 at 1.84 mm are used to set the load on this spring, so record what was fitted before dismantling
• The setting must be checked against specification after assembly rather than assumed

🔄 Supersession & Cross Reference

OEM Supersession Chain

• 6885720 → Supersedes 840835

OEM / Related Numbers

• 840835 earlier number superseded by this part

📦 Condition

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

🔎 Full Model Compatibility

Typically suits:

• Volvo Penta TAMD31L-A, TAMD31M, TAMD31M-A, TAMD31P, TAMD31P-A, TAMD31S, TAMD31A, TAMD31B, TAMD31D
• Volvo Penta AD31, AD31B, AD31D, AD31D-A, AD31L-A, AD31P-A, AD31XD
• Volvo Penta 2003TB SOLAS, 2001B, 2001BG, 2002B, 2002BG, 2003B, 2003B SOLAS
• Volvo Penta AD41B, AD41D, AD41L-A, AD41P-A, AD41A, AD41BJ
• Volvo Penta TAMD41B, TAMD41H-A, TAMD41M-A, TAMD41P-A, TAMD41A
• Volvo Penta KAD42A, KAD42B, KAD42P-A
• Volvo Penta KAMD42A, KAMD42B, KAMD42P-A
• Volvo Penta TMD31A, TMD31B, TMD31D
• Volvo Penta D45BPP, D45A
• Volvo Penta TMD41A, TMD41B
• Volvo Penta D41B
• Volvo Penta KAD43P-A
• Volvo Penta KAMD43P-A
• Volvo Penta MD31A
• Volvo Penta TAMD42WJ-A
• Volvo Penta TD30A
• Volvo Penta TD31ACE
• Volvo Penta TD40A
• Volvo Penta TD45B