Volvo Penta Tension Pulley – Fits KAD32P-A, KAD43/KAD44/KAD300, KAMD43/KAMD44/KAMD300 & TAMD42WJ-A
Volvo Penta Tension Pulley – Fits KAD32P-A, KAD43/KAD44/KAD300, KAMD43/KAMD44/KAMD300 & TAMD42WJ-A is backordered and will ship as soon as it is back in stock.
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Delivery and Shipping
Delivery and Shipping
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Volvo Penta Tension Pulley – Fits KAD32P-A, KAD43/KAD44/KAD300, KAM...
Volvo Penta Tension Pulley – Fits KAD32P-A, KAD43/KAD44/KAD300, KAMD43/KAMD44/KAMD300 & TAMD42WJ-A is backordered and will ship as soon as it is back in stock.
Product Details
This aftermarket tension pulley is listed for selected Volvo Penta marine diesel engine applications in the KAD, KAMD and TAMD series. It is a belt idler/pulley component intended for the engine belt tensioning system.
The listed Volvo Penta reference numbers are 861563 and 877180. The company catalog also lists 18563 as a reference number for this product.
- Replacement tension pulley for selected Volvo Penta applications.
- Designed for use in the belt idler or tensioner assembly.
- Aftermarket replacement component; not a Volvo Penta-branded OEM part.
Part Number Matrix
Compare the reference numbers below with the number on your original pulley and your engine documentation before ordering.
| Brand or Reference | Part Number | Notes |
|---|---|---|
| Volvo Penta | 861563 | Reference number listed for this tension pulley |
| Volvo Penta | 877180 | Reference number listed for this tension pulley |
| Reference | 18563 | Additional number listed in the company catalog |
Engine & Model Compatibility
The company fitment record lists the following Volvo Penta models. Model names, suffixes and engine identification should be checked carefully before purchase.
| Brand | Engine Model | Listed Reference Numbers | Notes |
|---|---|---|---|
| Volvo Penta | KAD32P-A | 861563, 877180, 18563 | Listed application |
| Volvo Penta | KAD43 | 861563, 877180, 18563 | Listed application |
| Volvo Penta | KAD44 | 861563, 877180, 18563 | Listed application |
| Volvo Penta | KAD300 | 861563, 877180, 18563 | Listed application |
| Volvo Penta | KAMD43 | 861563, 877180, 18563 | Listed application |
| Volvo Penta | KAMD44 | 861563, 877180, 18563 | Listed application |
| Volvo Penta | KAMD300 | 861563, 877180, 18563 | Listed application |
| Volvo Penta | TAMD42WJ-A | 861563, 877180, 18563 | Listed application |
Important: The company fitment record does not specify model years, horsepower, stroke, serial-number ranges or individual suffix coverage beyond the models listed above. Do not use a general horsepower or year range as a substitute for confirming the exact engine model.
Technical Specs
- Product Type
- Belt idler / tension pulley
- Application
- Selected Volvo Penta marine diesel belt tensioner assemblies
- Reference Numbers
- 861563, 877180, 18563
- Brand Application
- Volvo Penta Stern / Out Drive
- Product Status
- Aftermarket replacement
What’s in the Box
- 1 x Tension Pulley
No additional belt, tensioner bracket, mounting hardware or other components are specified as included.
Installation Notes
- Turn off the engine, allow it to cool completely and follow the safety procedures in the engine service manual.
- Confirm the replacement pulley and its reference number against the original part before disassembly.
- Remove the drive belt and the existing pulley according to the manufacturer’s service procedure.
- Install the replacement pulley in the original belt tensioner or idler position.
- Reinstall and route the belt correctly, then tighten all fasteners to the applicable manufacturer specification.
- Before operating the engine, check belt alignment and pulley clearance. Start the engine only after confirming smooth, stable belt operation.
Professional installation is recommended when the correct belt-routing, fastener torque or tensioning procedure is not known.
Troubleshooting & FAQ
How do I know if this tension pulley will fit my engine?
Confirm that your engine is one of the listed Volvo Penta models: KAD32P-A, KAD43, KAD44, KAD300, KAMD43, KAMD44, KAMD300 or TAMD42WJ-A. Also compare the original pulley and reference numbers 861563, 877180 or 18563. If your engine has a different suffix or the pulley differs in design, obtain confirmation before ordering.
What are the signs of a failing tension pulley?
Common signs may include pulley noise, rough or restricted rotation, visible wobble, excessive play, belt misalignment or premature belt wear. Inspect the complete belt tensioner assembly and belt, because related components can produce similar symptoms.
Is there a recommended replacement interval?
No fixed replacement interval is specified for this product. Inspect the pulley during routine belt service and replace it if the bearing or pulley shows noise, roughness, looseness, damage or misalignment.
My original part is marked 861563. Is this the correct replacement?
861563 is one of the reference numbers listed for this tension pulley. Confirm the complete engine model and compare the replacement pulley with the original part before installation.
Is this an OEM part?
No. This listing is for an aftermarket replacement tension pulley. Volvo Penta reference numbers are provided for identification and application comparison only.
Does the package include the belt or complete tensioner assembly?
No. The package contains one tension pulley only. A drive belt, bracket, tensioner assembly and mounting hardware are not specified as included.
What if my engine model or part number is not listed?
Do not assume compatibility from appearance or horsepower alone. Compare the exact engine model, original pulley and reference number with the information above, and contact support if you need application assistance.
Safety & Important Info
- Verify the exact engine model and original pulley before ordering.
- Model years, horsepower, stroke and serial-number coverage are not specified in the company fitment record and should not be inferred.
- Inspect the belt, tensioner, mounting hardware and pulley alignment during installation.
- This is an aftermarket replacement, not a Volvo Penta-branded OEM component.
- Use the applicable engine service manual for belt routing, torque values and operating checks.
About Sea Sierra
- Marine Parts Support — We provide replacement components for a range of marine engine and drive applications.
- Application-Focused Listings — Reference numbers and model information are provided to help with parts identification.
- Customer Assistance — Contact support when your engine model, suffix or original part does not clearly match the listing.
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