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Analog Trim Sender 8M0098264 – Mercury Starboard 40–115 HP
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- $83.99
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How to Match This Part
This aftermarket analog power trim sender replaces Mercury / Mariner / Quicksilver 8M0098264 (and superseded numbers 8M0074845, 821400A2, and 821400A05). It mounts on the starboard side and reports outboard trim position to a traditional analog trim gauge.
Match this part in this order:
1. Number on the sender you remove — 8M0098264, 8M0074845, 821400A2, or 821400A05
2. Mount side — starboard only (this is not a port-mount sender)
3. Engine family + serial on the transom-bracket / cowling ID plate against the compatibility table, then compare mounting style with the product images
This is a starboard-mount analog power trim sender — not a digital SmartCraft trim sender, air temperature sensor, coolant temperature sender, or trim limit switch. Do not order by horsepower alone when a serial range is listed.
Part Number Cross-Reference
Use these verified Mercury numbers to confirm you have the correct starboard analog trim sender. Brand names and OEM numbers are for identification only.
| Type | Brand | Part Number | Notes |
|---|---|---|---|
| OEM | Mercury / Mariner / Quicksilver | 8M0098264 | Current analog trim sender — starboard mount (natural) |
| OEM | Mercury / Mariner | 8M0074845 | Earlier number; superseded by 8M0098264 |
| OEM | Mercury / Mariner | 821400A2 | Earlier trim sender kit; superseded by 8M0098264 |
| OEM | Mercury / Mariner | 821400A05 | Earlier catalog number; superseded by 8M0098264 |
This is an aftermarket part manufactured by JLM Marine. It is not sold as a genuine Mercury Marine, Mariner, or Quicksilver component.
Compatible Engine Models
Confirm your engine model and serial number on the mounting bracket or cowling identification plate. Use the Mercury Serial Number Guide and Mercury Parts Diagrams to verify the starboard trim-sender callout on your power-trim diagram.
| Brand | Engine Family | Rated HP / Models | Serial / Notes |
|---|---|---|---|
| Mercury / Mariner | 40–60 HP Family 2 / FourStroke (3- & 4-cyl EFI & carb groups) | 40, 50, 60 (incl. BigFoot / Bodensee / Jet where listed) | Catalog core application; confirm serial on the power-trim diagram — starboard mount only |
| Mercury / Mariner | 75–115 EFI FourStroke | 75, 80, 90, 100, 115 EFI | Where-used blocks include 0G960500 / 0T178500 / 1B172291 / 1B227000 / 1B366823 families — confirm serial |
| Mercury / Mariner | OptiMax / DFI 1.5L (non-digital sender applications) | 75, 90, 115 DFI; 80 Jet; 115 Pro XS; 125 DFI | Where-used from 0T801000 / 0T980000 / 1B227000 / 1B417702 / 1B736885 families — digital-sender OptiMax engines use a different part |
| Mercury / Mariner | 30 FourStroke (selected) | 30 (3-cyl FourStroke / EFI / carb groups in where-used) | Listed in OEM where-used for the superseded 821400A2 family — verify serial and starboard layout |
| Mercury | Instruments / gauges (accessory) | Analog trim sender (starboard) | Also listed under Instruments–Gauges 1994 & Up where an analog starboard trim sender is specified |
Always match the number stamped on the sender you remove and confirm starboard mounting. Port-mount senders and digital SmartCraft trim senders use different Mercury part numbers.
Technical Specifications
| Specification | Value |
|---|---|
| Part type | Analog power trim / trim position sender |
| Primary OEM number replaced | 8M0098264 |
| Superseded numbers covered | 8M0074845, 821400A2, 821400A05 |
| Mount side | Starboard only |
| Signal type | Analog trim sender (natural-color housing coding on OEM reference) |
| Application | Outboard power-trim position feedback to analog gauges |
| Not this part | Digital SmartCraft trim sender; port-mount sender; air / coolant temperature sensor; trim limit switch |
Installation Guide
- 1Turn the ignition off and disconnect the negative battery cable before working around the trim system or electrical harness.
- 2Locate the existing starboard analog trim sender on the power-trim / swivel-bracket area per your engine’s parts diagram. Note wire routing, terminal orientation, and mounting fastener positions before removal.
- 3Disconnect the leads, remove the mounting fasteners, and withdraw the old sender. Compare the new unit side by side with the original — mount side, drive engagement, and connector style must match the product images.
- 4Install the new sender in the same starboard orientation so the sender drive engages the trim shaft correctly, tighten fasteners to the torque values in your Mercury / Mariner service manual, and reconnect the leads.
- 5Reconnect the battery, run the trim through its full range, and confirm smooth analog gauge response with no binding of the sender drive.
Note: Professional installation is recommended if you are unsure about starboard alignment or gauge calibration.
Troubleshooting & FAQ
Important Notes
- Verify the OEM number on your original sender, starboard mount side, and engine serial against the compatibility table before ordering.
- Do not confuse this analog starboard trim sender with digital SmartCraft trim senders or air / coolant temperature sensors.
- This is an aftermarket replacement and is not a genuine Mercury Marine / Mariner / Quicksilver OEM component.
- OptiMax engines that specify a digital trim sender require a different Mercury part number — match the diagram callout, not horsepower alone.
Why Choose JLM MARINE?
- Precision Fit: Cross-referenced to Mercury 8M0098264 (and superseded 8M0074845 / 821400A2 / 821400A05) for the starboard analog applications listed above.
- Quality Control: Each batch is inspected for dimensional consistency and workmanship.
- Direct from Manufacturer: Aftermarket marine analog trim senders engineered for reliable power-trim position feedback.
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:
- Amazon FBA: orders will be delivered within 1-5 business days after placing the order (during certain special periods such as major promotions, Christmas, etc., the delivery time of Amazon FBA may be affected).
- US warehouse shipment: orders will be delivered within 5 days after placing the order.
- China warehouse shipment: orders will be delivered about 12 days after placing the order.
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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