1698128 Delivery Valve | Genuine Volvo Penta Part

🔧 Product Description

Genuine Volvo Penta delivery valve for the fuel system, controlling the discharge of fuel from the injection pump element to the injector line. It supersedes part number 244471, and compatibility is inherited from that predecessor listing, which covers a broad span of Volvo Penta diesel engines. Delivery valve condition directly affects injection timing and line pressure.

⚙️ Key Features

• OEM Volvo Penta part number 1698128
• Supersedes part 244471
• System group: Fuel System
• Net weight: 0.037 kg
• Compatibility inherited from predecessor part 244471
• Engine type: Volvo heavy-duty mechanical-injection diesel

🔌 Function

The delivery valve opens to release the pressurised fuel charge from the pump element into the injection line, then closes and retracts a small volume to drop line pressure sharply. That pressure drop is what gives a clean, rapid end to injection.

⚠️ Common Signs of Failure

• Poor starting, rough running or uneven cylinder contribution
• Smoke, particularly under load or on start-up
• Fuel knock or harsh combustion noise
• Wear, scoring or pitting on the valve and seat faces
• Loss of injection line pressure or dribbling injectors

🛠️ Service Notes

• This is a lapped, matched assembly: keep the valve and its seat together, handle them by the ends only, and never mix parts between pumping elements
• Work in scrupulously clean conditions with clean fuel or test oil — a single particle on a lapped face will stop the valve sealing
• Fit new sealing washers and O-rings and tighten the valve holder to the figure in the workshop manual for your engine; over-tightening distorts the seat and under-tightening leaks
• Injection pump work belongs on a test bench, so have delivery and timing checked and the pump recalibrated by a diesel fuel injection specialist after fitting
• Establish why the old valve failed — water or dirt in the fuel is the usual cause, so drain and clean the tank, lines and filters before the pump goes back into service

🔄 Supersession & Cross Reference

OEM Supersession Chain

• 1698128 → Supersedes 244471

OEM / Related Numbers

• 244471 earlier number superseded by this part
• 2 418 554 067 - Bosch reference
• 2554067 - valve stamping reference

Other-Brand OEM Numbers

• Bosch: 2 418 554 067

Aftermarket / Verified Equivalents

• DTP: 54 067
• DICSCL PARCS: 2418554067

📦 Condition

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