Volvo Penta Injection Pump 3831040 - Special Order
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The Volvo Penta Injection Pump 3831040 is a genuine Volvo Penta diesel fuel injection pump reference for TAMD122A marine diesel applications. Current Volvo Penta parts references show 3831040 replaced by 3803802, and Volvo Penta reman catalog data lists 3803802 as the injector pump/reman number for TAMD122A.
This pump is part of the engine fuel injection system and must be matched by engine model, serial number, existing pump tag, and fuel-system diagram. Similar 12-litre Volvo Penta engines can use different pump numbers depending on exact model and rating; for example, the same Volvo reman catalog separates TMD122A / TAMD122A / TAMD122P under 3803769 and TAMD122A HD under 3803789, so 3803802 / 3831040 should not be treated as a universal 122-series pump.
Key Features
- Genuine Volvo Penta diesel injection pump reference
- Original / entered part number: 3831040
- Replacement / updated reference: 3803802
- Associated Volvo Penta engine application: TAMD122A
- Used in the mechanical diesel fuel injection system
- Must be matched by engine serial number, pump identification tag, and fuel-system diagram
- Catalog-listed product weight for 3803802: approximately 32.5 kg
Engine Compatibility
Confirmed application reference:
- Volvo Penta TAMD122A ā injection pump reference 3803802, replacing 3831040
Do not assume fitment for TMD122A, TAMD122P, TAMD122A HD, or other TAMD/TMD 122 variants without checking the Volvo Penta parts diagram. Those related engines may use different injection pump numbers.
Serial Number Fitment Notice
Injection pump fitment is highly specific. Confirm the engine serial number, pump tag, rated output, governor setup, and the Volvo Penta fuel injection pump diagram before ordering. This is especially important on TAMD/TMD 122-series engines because the same engine family includes multiple pump references.
When This Part Needs Replacement
Replace the injection pump when diagnosis confirms pump-related fuel delivery failure, internal wear, leakage, calibration problems, poor rack control, hard starting, uneven running, black smoke, weak throttle response, or loss of rated power. Because this is a calibrated fuel-system component, the pump should not be replaced until fuel supply, filters, injectors, timing, and linkage issues have been checked.
Installation Notes
Installation should be handled by a qualified diesel fuel-injection technician. Correct pump timing, fuel-line sealing, governor linkage setup, system bleeding, and post-installation checks are critical. Inspect the fuel feed pump, filters, injection pipes, sealing washers, return/overflow components, and throttle/governor linkage during service. Do not install based on appearance alone.
Alternate/Superseded Part Numbers
- Volvo Penta 3831040 ā original / entered injection pump reference
- Volvo Penta 3803802 ā replacement / reman injection pump reference for TAMD122A
Parts Desk Insight
This is a pump-tag part, not a look-alike part. The safer match is 3831040 ā 3803802 for TAMD122A, then verify the serial number and existing pump plate before selling. The wrong 122-series injection pump can bolt close enough to confuse the job, but still be wrong for calibration, rating, or governor setup.
ā ļø Special Order: This product is not currently in store inventory but may be available from the Manufacturer. Special Orders may take up to 2 weeks to arrive. Call the parts desk before ordering if you need a closer estimate on delivery time.
Shipping information
In-stock and OEM parts: ship same or next business day.
Locally warehoused items: ship within 3ā4 business days.
Special-order items: timeline confirmed after order.
Returns & warranty
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Important:
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