Volvo Penta D3 Fuel Injector O-Ring Kit 31272771 | OEM Common Rail Seal Set
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Part Information
- Part Number: 31272771
- Brand: Volvo Penta
- Official Product Type: Fuel Injector O-Ring / Seal Kit — Common-Rail Fuel System
- Supersedes: No supersession on record
- Replaced By: No current supersession on record
- Diagram Position: D3 Fuel Injector & Delivery Pipe Assembly — alongside injectors, fuel rail, retaining clamp, and high-pressure delivery pipes
Overview
The Volvo Penta 31272771 is a genuine OEM fuel injector O-ring and seal kit for the common-rail fuel system on Volvo Penta D3 marine diesel engines. The kit provides the sealing components required for all five injectors in the D3 fuel system, including the diesel return O-ring, retainer-plate O-ring, and copper injector sealing washer. These seals should be replaced any time an injector is removed — reusing old seals risks fuel-return seepage and combustion leakage at the injector seat.
Kit Contents
- Diesel return O-ring (per injector)
- Retainer-plate O-ring (per injector)
- Copper injector sealing washer (per injector)
- Quantity: 1 kit covers all five D3 injectors
Compatible Applications
- Volvo Penta D3-110I-D / E / F / G / H
- Volvo Penta D3-140A-D / E / F / G / H
- Volvo Penta D3-140I-D / E / F / G / H
- Volvo Penta D3-150I-D / E / F / G / H
- Volvo Penta D3-170A-D / E / F / G / H
- Volvo Penta D3-170I-D / E / F / G / H
- Volvo Penta D3-200A-D / E / F / G / H
- Volvo Penta D3-200I-D / E / F / G / H
- Volvo Penta D3-220A-D / E / F / G / H
- Volvo Penta D3-220I-D / E / F / G / H
Confirm your complete engine model, generation suffix, and serial number against the Volvo Penta D3 fuel injector and delivery pipe diagram before ordering.
Serial Number Requirements
This kit is specific to the D3 common-rail injector and delivery-pipe fuel system. Always confirm your engine model, generation suffix, and serial number against the applicable Volvo Penta fuel-system diagram before ordering.
System
Fuel System — Common-Rail Fuel Injection / Fuel Injector Sealing
Related Parts — D3 Common-Rail Fuel System
The following components are part of the D3 fuel injection system and are commonly serviced alongside this kit:
- Injector — 3801385 / 36002662
- Retaining Clamp — 31272772
- Distribution Pipe — 30777759
- Pressure Sensor — 30787950
- Control Valve — 31216313
- Delivery Pipe — 31251172 (cylinders 1 and 2)
- Delivery Pipe — 31251173 (cylinders 3 and 4)
- Delivery Pipe — 31251174 (cylinder 5 / fuel pump)
- Fuel Hose — 31321198
Dimensions & Weight
- Weight: Approximately 0.05 kg
- Seal dimensions per Volvo Penta D3 fuel injector specification
Service Interval
Replace injector seals whenever an injector is removed for any reason. These seals are single-use components and must not be reused once disturbed.
Installation Notes
- Clean the injector bore and all sealing surfaces carefully before installing new seals
- Install the copper sealing washer, return O-ring, and retainer-plate O-ring in the correct sequence per the Volvo Penta D3 service procedure
- Tighten injector retaining hardware and high-pressure fuel connections to the specified torque values
- Inspect all delivery pipe fittings for damage before reassembly
- Run the engine and check for fuel leaks before returning to service
Technical FAQ
Q: Does this kit cover all five injectors?
A: Yes — one kit (31272771) provides the sealing components for all five injectors in the D3 common-rail fuel system.
Q: Can I reuse the old injector seals?
A: No. Injector seals are single-use components. Reusing compressed or heat-cycled seals risks fuel-return seepage and combustion leakage at the injector seat after reassembly.
Q: Should I replace the delivery pipe O-rings at the same time?
A: Yes — if any high-pressure delivery pipe fittings have been disturbed during injector service, inspect and replace the associated seals at the same time to avoid post-service leaks.
Q: What is the difference between 31272771 and 31272772?
A: 31272771 is the injector O-ring and seal kit. 31272772 is the separate injector retaining clamp. Both are typically needed during injector service.
Parts Desk Insights
This is one of the easiest add-ons to recommend during any D3 injector service call — at $14.40 for a full five-injector seal set, it’s a straightforward upsell that prevents post-service fuel leaks. The most common issue is customers removing injectors and reusing the old seals to save time, then dealing with return-fuel seepage or combustion leakage after reassembly. It’s also worth recommending the retaining clamp (31272772) at the same time, since clamps are often damaged during removal and should be inspected before reuse.
Shipping information
In-stock and OEM parts: ship same or next business day.
Locally warehoused items: ship within 1-3 business days.
Special-order items: timeline confirmed after order.
Returns & warranty
Returns & Satisfaction Guarantee
We stand firmly behind the quality of every product we sell. Your confidence matters to us — and we back it with a straightforward 30-Day Satisfaction Guarantee.
If you are not fully satisfied, you may request a return within 30 days of delivery. All returns must receive pre-approval prior to being sent back. Unauthorized returns will not be accepted.
To qualify for a return:
Item must be in new, unused condition
Product must be in its original packaging
All parts, components, hardware, manuals, and accessories must be included
Packaging must be undamaged and suitable for resale
Important:
Electronics are strictly inspected. No returns on open-box electronics. Exceptions may apply only with prior written approval. Any electronic unit that has been installed, powered, activated, or altered may not be eligible for return.
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