20483890 Spacer | Genuine Volvo Penta Part

🔧 Product Description

Precision spacing or load-distribution component used in the engine accessory, cooling, air or mounting assembly. Its calibrated dimensions maintain the original clearance, alignment or clamping geometry.

🚤 Compatibility

• Year Range: Approximately late 1990s-2010s, depending on engine and installation

⚙️ Key Features

• 0.338 kg
• Supersedes 8170702
• For the engine accessory, cooling, air or mounting assembly
• Recorded against 31 applications across D, TWD and TAD series engines
• The lighter 0.278 kg spacer 20487172 serves the same kind of joint

🔌 Function

Sets the standoff and clamped length in the accessory mounting, holding the correct clearance and alignment when the joint is tightened.

⚠️ Common Signs of Failure

• Mounted unit sitting out of alignment with its drive
• Joint that will not stay tight however hard it is pulled up
• Belt or coupling wear on one side only
• Spacer found crushed, ovalled or worn hollow at its ends on removal

🛠️ Service Notes

• Measure the spacer rather than assuming it is sound - a crushed spacer lets the joint close up and pulls the mounted unit out of line
• It replaces 8170702, so the two numbers describe the same spacer
• Do not substitute the 0.278 kg spacer 20487172, which is a different length

🔄 Supersession & Cross Reference

OEM Supersession Chain

• 20483890 → Supersedes 8170702

OEM / Related Numbers

• 8170702 earlier number superseded by this part

📦 Condition

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