21939135 Wiring Harness | Genuine Volvo Penta Part

🔧 Product Description

Genuine Volvo Penta wiring harness running from the engine to the SCR control unit, 7000 mm long, listed for 41 applications across D, TAD, TWD and TADH series engines. At 7000 mm it is the longest of the three versions offered for this run, the others being 3000 mm and 5000 mm.

🚤 Compatibility

• Engine Family: D, TAD, TWD, TADH

Full model list at the end of this description.

⚙️ Key Features

• 7000 mm long
• 1.724 kg
• Runs from the engine to the SCR control unit
• Listed for 41 applications across D, TAD, TWD and TADH series engines
• The longest of the three versions for this run, the others being 21939133 at 3000 mm and 21939134 at 5000 mm
• L=7000mm (Volvo assembly listing)

🔌 Function

Carries the supply and data circuits between the engine and the SCR control unit over the length of that run.

⚠️ Common Signs of Failure

• Aftertreatment warnings, or the engine derating
• Faults that appear and clear as the loom is moved or the engine warms
• Connector pins corroded, bent or pushed back
• Sheath chafed or crushed where it passes a bulkhead or bracket
• Broken conductor or failed screen found on continuity testing

🛠️ Service Notes

• Measure the run before ordering - the shorter versions are 21939133 at 3000 mm and 21939134 at 5000 mm
• Take up the slack in tidy, supported loops rather than leaving the extra length hanging where it can chafe

🔄 Supersession & Cross Reference

Other-Brand OEM Numbers

• VOE21939135

Aftermarket / Verified Equivalents

• Related SCR extension harnesses: 21883891 and 21883893

📦 Condition

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

🔎 Full Model Compatibility

Typically suits:

• Volvo Penta D13C3-B MH, D13C1-B MH, D13C4-B MH, D13C4-B MP, D13C5-B MP, D13C1-A MH, D13C2-A MH, D13C3-B MG, D13C4-B MG, D13C5-A MP, D13C2-A MG, D13C1-A MG, D13C7-B MP, D13C8-B MP
• Volvo Penta D16C1-E MG, D16C2-E MG, D16C1-E MH, D16C2-E MH, D16C1-F MH, D16C1-F MG
• Volvo Penta D8A6-A MH, D8A6-A MG
• Volvo Penta TAD570-72VE, TAD570-71VE-B
• Volvo Penta TAD880-82GE, TAD880-84VE
• Volvo Penta TADH880-82GE, TADH880-84VE
• Volvo Penta TWD1683GE-B, TWD1683VE
• Volvo Penta TAD1170-72VE
• Volvo Penta TAD1180-83VE
• Volvo Penta TAD1371-75VE
• Volvo Penta TAD1380-82GE
• Volvo Penta TAD1381-85VE
• Volvo Penta TAD1384-85VE-IWP
• Volvo Penta TAD1670-72VE
• Volvo Penta TAD580-83VE
• Volvo Penta TAD870-73VE
• Volvo Penta TWD1672-1673GE
• Volvo Penta TWD1682-83GE