Rear Crankshaft Sealing Ring Kit – Fits Volvo Penta D4/D6 Series (Replaces 3586960)
Rear Crankshaft Sealing Ring Kit – Fits Volvo Penta D4/D6 Series (Replaces 3586960) is backordered and will ship as soon as it is back in stock.
Couldn't load pickup availability
Worry-free returns
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.).
You should expect to receive your refund within four weeks of giving your package to the return shipper, however, in many cases you will receive a refund more quickly. This time period includes the transit time for us to receive your return from the shipper (5 to 10 business days), the time it takes us to process your return once we receive it (3 to 5 business days), and the time it takes your bank to process our refund request (5 to 10 business days).
If you need to return an item, simply login to your account, view the order using the "Complete Orders" link under the My Account menu and click the Return Item(s) button. We'll notify you via e-mail of your refund once we've received and processed the returned item.
Delivery and Shipping
Delivery and Shipping
Free standard shipping on all orders under 1 KG
Rear Crankshaft Sealing Ring Kit – Fits Volvo Penta D4/D6 Series (R...
Product Details
This is a replacement Rear Crankshaft Sealing Ring Kit designed for all variants of Volvo Penta D4 and D6 series marine diesel engines. It ensures a reliable, leak-free seal at the rear of the crankshaft, which is essential for maintaining engine performance and preventing oil loss.
This kit serves as a direct replacement for Volvo Penta OEM part number 3586960.
- Installs at the rear crankshaft assembly.
- Engineered for use in diesel fuel marine environments.
- Includes the essential sealing rings and silicone grease for installation.
Part Number Matrix
Use this matrix to confirm equivalent references across OEM and aftermarket.
| Brand | Part Number |
|---|---|
| Volvo Penta | 3586960 |
Engine & Model Compatibility
Confirm your engine model/year in the table below.
This sealing ring kit is designed for a wide range of Volvo Penta D4 and D6 series diesel engines. Please verify your specific model is listed to ensure correct fitment.
| Brand | Model | Rated HP | Stroke | OEM Part No. | Notes |
|---|---|---|---|---|---|
| Volvo Penta | D4 | All variants | 4-Stroke | 3586960 | |
| Volvo Penta | D6 | All variants | 4-Stroke | 3586960 | |
| Volvo Penta | D6-280A-A | 280 | 4-Stroke | 3586960 | |
| Volvo Penta | D6-280 | 280 | 4-Stroke | 3586960 | |
| Volvo Penta | D6-300 | 300 | 4-Stroke | 3586960 | |
| Volvo Penta | D6-310 | 310 | 4-Stroke | 3586960 | |
| Volvo Penta | D6-330 | 330 | 4-Stroke | 3586960 | |
| Volvo Penta | D6-340 | 340 | 4-Stroke | 3586960 | |
| Volvo Penta | D6-350 | 350 | 4-Stroke | 3586960 | |
| Volvo Penta | D6-370 | 370 | 4-Stroke | 3586960 | |
| Volvo Penta | D6-380 | 380 | 4-Stroke | 3586960 | |
| Volvo Penta | D6-400 | 400 | 4-Stroke | 3586960 | |
| Volvo Penta | D6-435 | 435 | 4-Stroke | 3586960 | |
| Volvo Penta | D6-440 | 440 | 4-Stroke | 3586960 | |
| Volvo Penta | D6-480 | 480 | 4-Stroke | 3586960 |
Technical Specs
- Product Type
- Rear Crankshaft Sealing Ring Kit
- Installation Location
- Rear crankshaft assembly
- Fuel Type
- Diesel
- Product Dimensions
- 15.0" L x 15.0" W x 3.0" H
- Technical Note
- Built to original Volvo Penta specifications
What’s in the Box
- 1 x Sealing Ring Kit (Replaces 3586960)
- 1 x Sealing Ring (3582749)
- 1 x Silicone Grease (1161687/1161447)
Installation Notes
- Ensure the engine is off, cool, and disconnected from the power source.
- Typically, the transmission must be separated from the engine to access the rear crankshaft seal.
- Carefully remove the flywheel and then the old sealing ring and its housing.
- Thoroughly clean the crankshaft surface and the mounting bore, ensuring they are free of oil, old sealant, and debris.
- Apply the included silicone grease lightly to the new sealing ring's inner lip.
- Gently press the new seal into place using a suitable seal driver tool. Ensure it is seated evenly and to the correct depth.
- Reinstall the housing, flywheel, and transmission according to the manufacturer's torque specifications.
- After reassembly, run the engine and check for any leaks around the new seal.
Troubleshooting & FAQ
Will this kit fit my specific Volvo Penta D4 or D6 engine?
This kit is designed for all variants of the Volvo Penta D4 and D6 series marine diesel engines. We recommend checking the compatibility table on this page to confirm your exact engine model is listed before purchasing.
What are the signs of a failing rear crankshaft seal?
The most common sign of a failing rear crankshaft seal is an oil leak from the junction between the engine block and the transmission bell housing. You may notice an oil drip on the ground, a gradual loss of engine oil, or smell burning oil if it drips onto hot exhaust components.
When should the rear crankshaft seal be replaced?
The seal should be replaced as soon as a leak is detected to prevent significant oil loss and potential engine damage. It is also common practice to replace it proactively during major service procedures, such as a clutch replacement or transmission removal, as this area is already accessible.
Does this kit include everything needed for installation?
This kit includes the main sealing ring kit, a secondary sealing ring, and a packet of silicone grease. However, installation requires specialized tools, such as a seal puller and a seal installation tool, which are not included. Please consult your engine's service manual for a complete list of required tools.
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
Payment methods
Your payment information is processed securely. We do not store credit card details nor have access to your credit card information.
