Gear Gasket Kit – Fits Volvo Penta 2003T, TB Marine Engines (Replaces 876054)
Gear Gasket Kit – Fits Volvo Penta 2003T, TB Marine Engines (Replaces 876054) is backordered and will ship as soon as it is back in stock.
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Worry-free returns
You may return most new, unopened items within 7 days of delivery for a full refund. We'll also pay the return shipping costs if the return is a result of our error (you received an incorrect or defective item, etc.).
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Delivery and Shipping
Delivery and Shipping
Free standard shipping on all orders under 1 KG
Gear Gasket Kit – Fits Volvo Penta 2003T, TB Marine Engines (Replac...
Product Details
This Gear Gasket Kit – Fits Volvo Penta 2003T, TB Marine Engines (Replaces 876054) is specifically designed for Volvo Penta 2003T and 2003TB marine diesel engines. It provides the necessary components for a lower engine assembly or sump conversion.
It serves as a direct aftermarket replacement for Volvo Penta part 876054 and Orbitrade 21054.
- Installation Method: Direct replacement
- Application area: For lower engine assembly / sump conversion
- Engine Fuel Type: Diesel
Part Number Matrix
Use this matrix to confirm equivalent references across OEM and aftermarket.
| Brand | Part Number |
|---|---|
| Volvo Penta | 876054 |
| Orbitrade | 21054 |
Engine & Model Compatibility
Confirm your engine model/year in the table below.
| Brand | Model | Stroke | OEM Part No. | Notes |
|---|---|---|---|---|
| Volvo Penta | 2003T | 4-Stroke | 876054 | Marine diesel engine |
| Volvo Penta | 2003TB | 4-Stroke | 876054 | Marine diesel engine |
Technical Specs
- Product Type
- Gear Gasket Kit / Sump Conversion Gasket Kit
- Installation
- Direct replacement
- Fuel Type
- Diesel
- Dimensions
- Length: 52.5 cm, Width: 18.5 cm, Height: 3.5 cm
- Weight
- 0.29 kg (0.64 lb)
- Other Technical Attributes
- For lower engine assembly / sump conversion
What’s in the Box
- Complete gasket kit assembly
Installation Notes
- Ensure the engine is off and cool, and disconnect the battery terminals for safety.
- Drain the engine oil completely into a suitable container.
- Carefully remove the lower engine sump or gear case cover.
- Thoroughly clean all mating surfaces, removing any old gasket material, sealant, or oil residue.
- Position the new gaskets from the kit correctly, ensuring proper alignment with all bolt holes and passages.
- Reinstall the cover or sump and tighten the fasteners in the sequence and to the torque values specified in your engine's service manual.
- Refill the engine with the manufacturer-recommended oil to the correct level.
- Reconnect the battery, start the engine, and carefully inspect for any oil leaks around the newly sealed area.
Troubleshooting & FAQ
How do I confirm this kit fits my engine?
This kit is specifically designed for Volvo Penta 2003T and 2003TB marine diesel engines. Cross-reference the OEM part number 876054 to ensure compatibility. Always verify your engine model before purchasing.
What are the signs of a leaking sump gasket?
Common signs include visible oil drips or leaks from the bottom of the engine, a low oil level warning, or finding oil spots on the ground or in the bilge beneath the engine.
Is this a complete kit for the job?
This is described as a complete gasket kit assembly for sump conversion. However, it's always best practice to visually compare the contents of the kit with the parts you are replacing to ensure everything you need is included.
When should engine gaskets be replaced?
Gaskets typically do not have a fixed service interval. They should be replaced whenever a leak is detected, during a scheduled engine overhaul, or if a component is removed for service.
Is any sealant required with these gaskets?
This depends on the manufacturer's recommendations in the service manual. Some gaskets are designed to be installed dry, while others may require a thin layer of a specific type of sealant. Always consult your manual for the correct procedure.
Is there a difference vs the OEM kit?
Our aftermarket kit is engineered to meet or exceed original equipment manufacturer (OEM) specifications for fit, form, and function, but is offered at a more accessible price. It is designed to provide a reliable seal for your engine.
OEM vs. Aftermarket?
This listing is an aftermarket replacement (not OEM). Built to OEM-level specifications with comparable materials. Manufactured in an ISO 9002 facility, batch-inspected for consistency.
Shipping speed & cost
We ship worldwide quickly—typical transit 5–15 days. Standard shipping is free; expedited options appear at checkout where available.
Warranty & returns
Covered by a 1-year warranty against manufacturing defects under normal use. If issues arise, contact support with your order details. Returns are accepted within our standard window (unused & in original condition). See our policy page or reach out for instructions.
Safety & Important Info
- Verify images/specifications vs your original part. If anything differs—even if your model appears compatible—do not purchase.
- This is an aftermarket replacement, not an OEM component.
- Professional installation is recommended for safety and performance.
About Sea Sierra
- Pro-Grade Standards — We supply marine parts engineered to OEM-level tolerances and tested for real-world conditions.
- Fast Global Fulfillment — Free standard delivery to most regions in 5–15 days.
- Manufacturer-Direct Value — Fair pricing without compromising on materials or QC.
Payment & Security
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