3861321 Sensor | Genuine Volvo Penta Part

🔧 Product Description

Genuine Volvo Penta sensor from the Ignition and Control Systems group, weighing 0.0431 kg and listed for 95 applications in the DPX family. It supersedes part number 3857479. Sources give no voltage, kPa range, thread or pin data.

🚤 Compatibility

• Engine Family: DPX

Full model list at the end of this description.

⚙️ Key Features

• 0.0431 kg
• Ignition and Control Systems group
• Supersedes 3857479
• Listed for 95 applications in the DPX family

🔌 Function

Measures the condition it monitors and feeds the signal to the engine control unit.

⚠️ Common Signs of Failure

• Fault logged against the sensor circuit
• Rough running, poor starting or the engine going into a reduced-power mode
• Reading drifting or sticking at one value
• Connector pins corroded or the lead chafed
• Sensor body cracked, or seeping where it screws in

🛠️ Service Notes

• This number replaces 3857479 — old paperwork and stock will show the earlier number
• Check the loom and connector before condemning the sensor, since wiring faults log the same code
• Renew the sealing washer or O-ring where the sensor screws in

🔄 Supersession & Cross Reference

OEM Supersession Chain

• 3861321 → Supersedes 3857479

OEM / Related Numbers

• 3857479 earlier number superseded by this part

Aftermarket / Verified Equivalents

• Sierra: 18-7660
• Walker Products: WK-225-1017
• Walker Products: E13-0001
• Mercury/Mercruiser (Quicksilver): 881731
• Mercury/Mercruiser (Quicksilver): 8M0054726
• Mercury/Mercruiser (Quicksilver): 8M0186195
• Mercruiser: 861249A1
• Indmar: 556102

📦 Condition

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

🔎 Full Model Compatibility

Typically suits:

• Volvo Penta 8.1Gi-B, 8.1Gi-BF, 8.1Gi-C, 8.1Gi-CF, 8.1GiC-J, 8.1GiC-JF, 8.1GiCE-JF, 8.1GiCE-J, 8.1GiCE-M, 8.1GiCE-P, 8.1GiC-Q, 8.1GiCE-Q, 8.1Gi-D, 8.1Gi-DF, 8.1Gi-E, 8.1Gi-EF, 8.1GiE-JF, 8.1GiE-J, 8.1GiE-KF, 8.1GiE-K, 8.1GiE-M, 8.1GiE-MF, 8.1GiE-P, 8.1Gi-F, 8.1Gi-FF, 8.1Gi-G, 8.1Gi-GF, 8.1Gi-H, 8.1Gi-HF, 8.1GiI-A, 8.1GiI-B, 8.1GiI-C, 8.1GiI-D, 8.1GiI-E, 8.1GiI-F, 8.1GiI-G, 8.1GiI-H, 8.1Gi-J, 8.1Gi-JF, 8.1GSi-A, 8.1GSiI-A, 8.1GXi-A, 8.1GXi-AF, 8.1GXi-B, 8.1GXi-BF, 8.1GXi-C, 8.1GXi-CF, 8.1GXi-D, 8.1GXi-DF, 8.1GXi-E, 8.1GXi-EF, 8.1GXiE-JF, 8.1GXiE-J, 8.1GXiE-K, 8.1GXiE-KF, 8.1GXiE-M, 8.1GXiE-P, 8.1GXi-F, 8.1GXi-FF, 8.1GXi-G, 8.1GXi-GF, 8.1GXiI-A, 8.1GXiI-B, 8.1GXiI-C, 8.1GXiI-D, 8.1GXiI-E, 8.1GXiI-F, 8.1GXiI-G, 8.1GXi-J, 8.1GXi-JF, 8.1IPSCE-JF, 8.1IPSCE-MF, 8.1IPSCE-P, 8.1IPSCE-Q, 8.1IPSE-JF, 8.1OSi-A, 8.1OSi-AF, 8.1OSi-B, 8.1OSi-BF, 8.1OSi-C, 8.1OSi-CF, 8.1OSi-D, 8.1OSi-DF, 8.1OSi-J, 8.1OSi-JF, 8.1OSiE-JF, 8.1OSiE-J
• Volvo Penta DPX375-A, DPX375-B, DPX375-BF, DPX375-CF
• Volvo Penta DPX420-CF, DPX420-A, DPX420-B, DPX420-BF