Volvo Penta D3 Fuel Injector Retaining Clamp 31272772 | OEM Common Rail
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Part Information
- Part Number: 31272772
- Brand: Volvo Penta
- Official Product Type: Retaining Clamp — Fuel Injector
- Supersedes: No supersession on record
- Replaced By: No current supersession on record
- Diagram Position: Object Key 5 — D3 Fuel Injector & Delivery Pipe Assembly (D3-110I-D fuel system schematic)
Overview
The Volvo Penta 31272772 is a genuine OEM fuel injector retaining clamp for Volvo Penta D3 marine diesel engines. It secures the fuel injector in the cylinder head as part of the common-rail fuel injection system. The clamp is a critical component of the injector mounting assembly — if it is bent, fatigued, or damaged, the injector cannot be held securely in place, which can lead to combustion leakage or injector movement under operating conditions. It should be inspected every time an injector is removed and replaced if there is any sign of distortion or wear.
Compatible Applications
- Volvo Penta D3-110I (generations D–H)
- Volvo Penta D3-140A / D3-140I (generations D–H)
- Volvo Penta D3-150I (generations D–H)
- Volvo Penta D3-170A / D3-170I (generations D–H)
- Volvo Penta D3-200A / D3-200I (generations D–H)
- Volvo Penta D3-220A / D3-220I (generations D–H)
Confirm your complete engine model, generation suffix, and serial number against the Volvo Penta D3 fuel injector and delivery pipe diagram before ordering. Injector hardware can vary by engine version and production break.
Serial Number Requirements
Always confirm your engine model, generation suffix, and serial number using the Volvo Penta D3 fuel system parts diagram before ordering. Injector mounting hardware is specific to the injector assembly configuration for your engine version.
System
Fuel System — Common-Rail Fuel Injection / Fuel Injector Mounting
Related Parts — D3 Fuel Injector Assembly
The following components are part of the D3 fuel injector assembly and are commonly serviced alongside this clamp:
- Injector — 3801385 / 36002662
- Injector O-Ring & Seal Kit — 31272771
- 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 0.1 kg
- Dimensions per Volvo Penta D3 fuel injector assembly specification
When This Part Needs Replacement
Replace the retaining clamp if any of the following apply:
- Clamp is bent, cracked, or distorted
- Visible fatigue or loss of holding tension
- Corrosion or damage to the clamp body
- Damaged during injector removal or installation
- No longer holds the injector securely in the cylinder head
It is good practice to inspect the clamp every time an injector is removed and replace it if there is any doubt about its condition — the cost of the clamp is small compared to the labor involved in a repeat injector service.
Installation Notes
Inspect the injector seat, clamp mounting hardware, and surrounding fuel-system components before reassembly. Follow the Volvo Penta D3 service procedure for injector installation and tighten all hardware to the specified torque values. Replace the injector seal kit (31272771) at the same time — injector seals must always be replaced when an injector is removed.
Technical FAQ
Q: What does the retaining clamp do?
A: It holds the fuel injector securely in the cylinder head. A damaged or fatigued clamp can allow the injector to move under operating conditions, leading to combustion leakage or injector damage.
Q: Should I replace the clamp every time I remove an injector?
A: Not necessarily, but you should inspect it carefully. If there is any sign of bending, cracking, fatigue, or loss of tension, replace it. Given the low cost relative to the labor involved, many technicians replace it as a matter of course during injector service.
Q: What else should I replace during injector service?
A: Always replace the injector seal kit (31272771) when an injector is removed. Inspect the delivery pipe fittings and replace any that show damage or corrosion.
Q: How do I confirm this fits my D3 engine?
A: Match your engine model, generation suffix (D through H), and serial number to the Volvo Penta D3 fuel injector and delivery pipe diagram, and confirm the clamp position at object key 5.
Parts Desk Insights
The retaining clamp is easy to overlook during injector service because it looks simple and often appears reusable. But a clamp that’s been bent or fatigued — even slightly — won’t hold the injector with the same force as a new one, and that can cause problems after reassembly. It’s worth recommending this alongside the injector seal kit (31272771) any time a customer is doing injector work on a D3 — both are low-cost items that prevent repeat labor on a high-labor job.
Shipping information
In-stock and OEM parts: ship same or next business day.
Locally warehoused items: ship within 3–4 business days.
Special-order items: timeline confirmed after order.
Returns & warranty
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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.
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Important:
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