Gear Segment Ratchet for Volvo Penta DP-A2, DP-C, DP-C1, DP-D1, DP-X, SP-A, SP-A1, SP-C, SP-C1 | Replaces 872812
This Gear Segment Ratchet is designed for Volvo Penta 290 SP and DP series sterndrives, serving as a critical component of the trim indicator system. The rack mounts within the sterndrive helmet to provide accurate trim position feedback, ensuring optimal boat handling and performance.
This aftermarket replacement directly replaces Volvo Penta OEM part number 872812, fitting a variety of sterndrive models including DP-A2, DP-C, DP-C1, DP-D1, DP-X, SP-A, SP-A1, SP-C, and SP-C1 units.
- Trim indicator rack designed for Volvo Penta 290 series sterndrives
- Fits both DP (DuoProp) and SP (Single Prop) sterndrive configurations
- Direct replacement for worn or damaged trim position sensors
Part Number Cross-Reference
Use this table to confirm equivalent part numbers across OEM and aftermarket brands.
| Brand |
Part Number |
| Volvo Penta |
872812 |
Compatible Engine Models
Confirm your engine model/year in the table below.
| Brand |
Model |
| Volvo Penta |
DP-A2 |
| Volvo Penta |
DP-C |
| Volvo Penta |
DP-C1 |
| Volvo Penta |
DP-D1 |
| Volvo Penta |
DP-X |
| Volvo Penta |
SP-A |
| Volvo Penta |
SP-A1 |
| Volvo Penta |
SP-C |
| Volvo Penta |
SP-C1 |
Technical Specifications
| Specification |
Value |
| Product Type |
Gear Segment / Ratchet (Trim Indicator Rack) |
| Application |
Volvo Penta 290 SP / DP Sterndrives |
| Mounting Location |
Sterndrive Helmet |
| OEM Reference |
872812 |
Package Contents
- 1 × Gear Segment Ratchet (Trim Indicator Rack)
Installation Guide
- Disconnect the battery and ensure the sterndrive is in the full-down (trim-in) position for safety.
- Remove the sterndrive helmet cover to access the trim indicator assembly.
- Locate the existing gear segment ratchet mounted inside the helmet.
- Carefully remove the old ratchet by disconnecting any retaining clips or fasteners. Note the orientation and position for reinstallation.
- Clean the mounting area thoroughly to remove any debris, old grease, or corrosion.
- Position the new gear segment ratchet in the same orientation as the original component.
- Secure the ratchet with the original fasteners or clips, ensuring it engages properly with the trim sender mechanism.
- Apply marine-grade grease to moving parts to ensure smooth operation and corrosion resistance.
- Reinstall the sterndrive helmet cover, ensuring all seals are properly seated.
- Reconnect the battery and cycle the trim system through its full range to verify proper operation.
- Check the trim gauge on your dashboard to confirm accurate position readings at multiple trim angles.
- If the trim gauge does not read correctly, adjust the sender calibration or verify proper ratchet engagement.
Troubleshooting & FAQ
Q: How do I know if my trim indicator rack needs replacement?
A: Common signs include erratic or non-functional trim gauge readings, the gauge stuck at one position regardless of trim angle, or visible damage/wear to the ratchet teeth when inspecting the sterndrive helmet.
Q: Will this fit my Volvo Penta sterndrive if it's not listed in the compatibility chart?
A: This part is designed specifically for 290 SP and DP series sterndrives listed above. If your model is not listed, verify the OEM part number (872812) against your sterndrive's parts diagram before ordering.
Q: Can I install this without removing the entire sterndrive?
A: Yes, in most cases you can access the gear segment ratchet by removing only the sterndrive helmet cover. Full sterndrive removal is typically not required for this repair.
Q: How often should this component be replaced?
A: The gear segment ratchet does not have a scheduled replacement interval. Replace it when you notice trim gauge malfunction or if visible wear/damage is found during routine sterndrive maintenance.
Q: What's the difference between this aftermarket part and the OEM version?
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?
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Quality Assured: As a trusted manufacturer for over 20 years, we supply top marine brands globally.
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Fast Global Shipping: Free delivery worldwide in 5–15 days.
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Direct from Manufacturer: Competitive pricing without compromising quality.