856198 Nozzle | Genuine Volvo Penta Part

🔧 Product Description

Genuine Volvo Penta nozzle from the Fuel System group, listed as the Primary and covering 31 applications across the AQ, DP, SP and MS ranges.Nozzle 856280 is the other nozzle in this run, listed at 0.002 kg for 26 applications across DP, SP and MS.

🚤 Compatibility

• Engine Family: AQ, DP, SP, MS

Full model list at the end of this description.

⚙️ Key Features

• Primary nozzle
• 31 applications across AQ, DP, SP and MS
• Fuel System group
• Distinct from nozzle 856280

🔌 Function

Delivers metered fuel into the airstream at the primary throat, setting the mixture through the main running range.

⚠️ Common Signs of Failure

• Flat or weak running through the main throttle range
• Rich running, black smoke and sooted plugs
• Fuel consumption up with nothing else changed
• Nozzle bore varnished, gummed or partly blocked
• Hesitation as the throttle comes off idle onto the main circuit

🛠️ Service Notes

• Clean and inspect before replacing - a blocked nozzle and a worn one give much the same symptoms
• Nozzle 856280 covers 26 applications across DP, SP and MS; order by part number, not by appearance

📦 Condition

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

🔎 Full Model Compatibility

Typically suits:

• Volvo Penta 740B, 501B, 570A, 572A, 430A, 430B, 431A, 431B, 432A, 434A, 271LB, 570, 500B, 571A, 430
• Volvo Penta DP-C, DP-C1, DP-D, DP-D1, DP-A, DP-A2
• Volvo Penta AQ271A, AQ271C, AQ271B, AQ271D
• Volvo Penta SP-C, SP-A2, SP-C1
• Volvo Penta AQ311A, AQ311B
• Volvo Penta MS4B