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Most new, unused items may be returned within 7 days of delivery, subject to our Returns Policy. A 20% processing/restocking fee may apply for returns that are not the result of our error. Original shipping charges are non-refundable.
If the return is due to our mistake (incorrect or defective item), we will cover the return shipping cost and issue a full refund.
EU customers are entitled to a 14-day cooling-off period in accordance with applicable consumer protection regulations. Certain exclusions may apply.
Refunds are issued after the returned item is received and inspected. Processing times may vary depending on shipping transit and payment provider handling, but most refunds are completed promptly.
To request a return, please contact us at info@jlm-marine.com with your order number for return authorization. For full terms, conditions, and exclusions, please refer to our complete Returns & Refunds Policy page.
This aftermarket trim position sensor replaces Mercury / Mariner / Quicksilver 888590002 (and the earlier number 888590). It mounts on the Verado swivel-bracket / cradle area and reports outboard trim angle to the engine controls and instrumentation.
Match this part in this order:
1. Number on the sensor you remove — 888590002 or 888590
2. Engine family — Mercury or Mariner Verado inline-six (6-cylinder) four-stroke outboard, 200–300 HP
3. Serial number on the engine ID plate / midsection bracket against the compatibility notes, then compare the two-hole sensor face and corrugated harness with the product images
Four-cylinder Verado and other outboard families use different sender numbers — confirm the stamped OEM number before ordering.
Use these verified Mercury numbers to confirm you have the correct Verado trim position sensor. Brand names and OEM numbers are for identification only.
| Type | Brand | Part Number | Notes |
|---|---|---|---|
| OEM | Mercury / Mariner / Quicksilver | 888590002 | Current trim position sensor |
| OEM | Mercury / Mariner | 888590 | Earlier number; superseded by 888590002 |
This is an aftermarket part manufactured by JLM Marine. It is not sold as a genuine Mercury Marine, Mariner, or Quicksilver component.
Confirm your Mercury or Mariner Verado inline-six outboard below. Find the serial number on the engine identification plate / midsection bracket, then use Mercury Parts Diagrams for the mount-cradle sensor callout.
| Brand | Engine Family | Rated HP | Serial / Notes |
|---|---|---|---|
| Mercury / Mariner | Verado 6-cylinder 4-stroke | 200, 225, 250, 275 | Covered OEM where-used blocks include 0P409357–2B144122 family ranges and 1B227000 & Up — confirm your serial on the parts diagram |
| Mercury / Mariner | Verado 6-cylinder 4-stroke | 300 | Covered OEM where-used blocks include 0P520553–2B144122 and 1B517434 & Up — confirm serial before ordering |
Always match the number on the sensor you remove. If your Verado uses a different trim sensor PN (for example later Pro Verado black sensors), this listing is not the correct replacement.
| Specification | Value |
|---|---|
| Part type | Trim position sensor |
| Primary OEM number replaced | 888590002 |
| Earlier number covered | 888590 |
| Application | Mercury / Mariner Verado inline-six outboard trim sensing |
| Mounting form | Rectangular sensor body with two mounting holes |
| Harness | Integrated corrugated wire loom with multi-pin connector (three conductors) |
| Compatible brands | Mercury; Mariner |
Note: Professional installation is recommended for Verado trim position sensors.
Start with the number on the sensor you remove. If it reads 888590002 or 888590, and your engine is a Mercury or Mariner Verado 6-cylinder four-stroke in the 200–300 HP range, match your serial to the compatibility table and the OEM parts diagram before ordering.
Yes. 888590002 is the current OEM number; 888590 is the earlier number it supersedes. Either stamp on a removed sensor points to this replacement family when the Verado fitment also matches.
No. This listing is for six-cylinder Verado applications that use 888590002 / 888590. Four-cylinder Verado and later Pro Verado platforms may use different sensor part numbers.
This is an aftermarket replacement manufactured by JLM Marine. It is not a genuine Mercury Marine, Mariner, or Quicksilver part. OEM numbers are listed only for cross-matching.
We can ship to virtually any address in the world with free shipping available for most regions.
For our typical US and Canadian customers , our shipping timeframes are as follows:
When you place an order, we will estimate shipping and delivery dates for you based on the availability of your items and the shipping options you choose. Depending on the shipping provider you choose, shipping date estimates may appear on the shipping quotes page.
Please also note that the shipping rates for many items we sell are weight-based. The weight of any such item can be found on its detail page. To reflect the policies of the shipping companies we use, all weights will be rounded up to the next full pound.
Founded in 2002, JLM Marine has established itself as a dedicated manufacturer of high-quality marine parts, based in China. Our commitment to excellence in manufacturing has earned us the trust of top marine brands globally.
As a direct supplier, we bypass intermediaries, which allows us to offer competitive prices without compromising on quality. This approach not only supports cost-efficiency but also ensures that our customers receive the best value directly from the source.
We are excited to expand our reach through retail channels, bringing our expertise and commitment to quality directly to boat owners and enthusiasts worldwide.
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