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Description
Camshaft Gear – Fits Volvo Penta 3.0L–5.7L Engines 117–150 HPCamshaft Gear Fits Volvo Penta 3. 0L5. 7L Engines This replacement camshaft gear is engineered for Volvo Penta 4 cylinder 3. 0L engines, covering models from 1979 to 1993 with horsepower ratings between 117 and 150 HP. It ensures precise valve timing and reliable engine performance, serving as a direct fit component for a range of popular sterndrive engines. This gear directly replaces Volvo Penta OEM part numbers 856239, 855473, and 831972.
Camshaft Gear – Fits Volvo Penta 3.0L–5.7L Engines
This replacement camshaft gear is engineered for Volvo Penta 4-cylinder 3.0L engines, covering models from 1979 to 1993 with horsepower ratings between 117 and 150 HP. It ensures precise valve timing and reliable engine performance, serving as a direct-fit component for a range of popular sterndrive engines.
This gear directly replaces Volvo Penta OEM part numbers 856239, 855473, and 831972.
- Installation Method: Direct OEM replacement
- Material: Constructed from high-strength Forged Steel for durability
- Replaces multiple legacy Volvo Penta part numbers for broad compatibility
Part Number Cross-Reference
Use this table to confirm equivalent part numbers across OEM and aftermarket brands.
| Brand | Part Number |
|---|---|
| Volvo Penta | 856239 |
| Volvo Penta | 855473 |
| Volvo Penta | 831972 |
Compatible Engine Models
Confirm your engine model/year in the table below.
| Brand | Model | Rated HP | Stroke | Years | OEM Part No. | Notes |
|---|---|---|---|---|---|---|
| Volvo Penta | AQ125A | 117 HP | 4-Stroke | 1983–1984 | 856239 | |
| Volvo Penta | AQ131 A, B, C, D | 120 HP | 4-Stroke | 1985–1993 | 856239 | |
| Volvo Penta | AQ145B | 138–139 HP | 4-Stroke | 1979–1988 | 856239 | |
| Volvo Penta | AQ151 A, B, C | 146–150 HP | 4-Stroke | 1989–1993 | 856239 | |
| Volvo Penta | 230 | 120 HP | 4-Stroke | 1989–1993 | 856239 | |
| Volvo Penta | 250 | 146 HP | 4-Stroke | 1989–1993 | 856239 |
Technical Specifications
| Specification | Value |
|---|---|
| Product Type | Camshaft Gear / Timing Gear |
| Installation | Direct OEM replacement |
| Housing Material | Metal (Forged Steel) |
| Dimensions | 5.5 cm (height) × 15.5 cm (width) × 18.0 cm (length) |
| Weight | 0.51 kg (1.12 lbs) |
| Warranty | 1-year against manufacturing defects |
Explosion Diagram
Installation Guide
- Safety First: Disconnect the negative battery terminal to prevent electrical hazards.
- Drain Fluids: Drain the engine coolant and oil completely.
- Access Components: Remove the valve cover, timing belt cover, and any accessories blocking access.
- Remove Belt: Carefully release tension from the timing belt and remove it.
- Align Marks: Rotate the engine manually to align the timing marks on the crankshaft and camshaft pulleys.
- Remove Old Gear: Loosen the bolt securing the camshaft gear and remove the old gear from the camshaft.
- Install New Gear: Place the new camshaft gear onto the camshaft, ensuring the timing marks remain perfectly aligned. Tighten the bolt to the manufacturer's torque specification.
- Reinstall Belt: Reinstall the timing belt and set the correct tension using a tensioner tool.
- Reassembly: Reinstall the timing cover, valve cover, and any other components that were removed.
- Refill and Test: Refill the engine with fresh coolant and oil. Reconnect the battery, start the engine, and listen for abnormal noises and check for leaks.
Troubleshooting & FAQ
Q: How do I confirm this camshaft gear fits my Volvo Penta engine?
A: Check that your engine model (e.g., AQ131A, 230) and year of manufacture (1979–1993) are listed in our compatibility table. You should also verify that your existing part number is one of the direct replacements: 856239, 855473, or 831972.
Q: What are the signs that my camshaft gear needs replacement?
A: Common symptoms of a failing camshaft gear include a rattling or ticking noise from the engine bay, loss of power, engine misfires, rough idling, or a Check Engine Light related to camshaft timing. A visual inspection may reveal worn, chipped, or broken teeth on the gear.
Q: What is this gear made of?
A: This gear is manufactured from high-strength forged steel, designed to meet or exceed original equipment specifications for durability and precise valve timing.
Q: OEM vs. Aftermarket?
A: This listing is an aftermarket replacement part (not an OEM component). We build to OEM specifications using comparable-grade materials. Production is done in an ISO9002-certified facility, and each batch is inspected for consistent performance.
Q: How fast do you ship and how much does it cost?
A: We offer fast global shipping—typically 5–15 days worldwide—and standard shipping is free. Expedited options are available at checkout depending on your location.
Q: What is your warranty and return policy?
A: This product includes a 1-year warranty against manufacturing defects under normal use. If something goes wrong, contact our support team with your order details. Returns are accepted within our standard return window (unused & in original condition); please see our policy page or reach out for instructions.
Important Notes
- Verify that the product images and specifications match your original part. If discrepancies exist—even if your model is listed—do not proceed with the purchase.
- This product is an aftermarket replacement part and is not an OEM component.
- Professional installation is recommended to ensure safety and optimal performance.
Why Choose JLM MARINE?
- Quality Assured: As a trusted manufacturer for over 20 years, we supply top marine brands globally.
- Fast Global Shipping: Free delivery worldwide in 5–15 days.
- Direct from Manufacturer: Competitive pricing without compromising quality.
Shipping Notes
- Free Standard Shipping on $100+ Orders to the USA.
- Except Preorder products are shipped in 48 hours.
- Delivery to the USA:
- Standard Shipping : 3-10 business days
- If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
- We offer a 30-day return/exchange service after receiving.
- Final sale items are not eligible for returns or exchanges.
- To process your return/exchange, please contact us at [email protected]
- Please click here for more details>>> Return & Exchange Policy