Diesel Fuel Filter – Fits MerCruiser D-Series Engines (Replaces 35-807256T, 807256, 896332072)
Diesel Fuel Filter – Fits MerCruiser D-Series Engines (Replaces 35-807256T, 807256, 896332072) is backordered and will ship as soon as it is back in stock.
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Diesel Fuel Filter – Fits MerCruiser D-Series Engines (Replaces 35-...
Product Details
This high-efficiency Diesel Fuel Filter – Fits MerCruiser D-Series Engines is engineered to protect your marine engine by removing water, dirt, and other contaminants from the fuel. It is designed for a broad range of MerCruiser diesel engines, including the D2.8L, D3.0L, D3.6L, D4.2L, D7.3L D-Tronic, and CMD (Cummins MerCruiser Diesel) series manufactured between 1994 and 2008.
This filter serves as a direct replacement, providing an interchange for MerCruiser part numbers 35-807256T, 807256T, 807256, and 896332072, as well as Perkins 26560143/35412 and aftermarket number LP BF7674-D.
- Installs in a spin-on configuration (vertical or inverted).
- Effectively separates water from diesel fuel to prevent engine damage.
- Includes one filter assembly as pictured.
Part Number Matrix
Use this matrix to confirm equivalent references across OEM and aftermarket.
| Brand | Part Number |
|---|---|
| MerCruiser | 35-807256T |
| MerCruiser | 807256T |
| MerCruiser | 807256 |
| MerCruiser | 896332072 |
| Perkins | 26560143 |
| Perkins | 35412 |
| Aftermarket | LP BF7674-D |
Engine & Model Compatibility
Confirm your engine model/year in the table below.
This filter fits a range of MerCruiser D-Series and CMD engines, as detailed in the tables.
| Brand | Model | Rated HP | Stroke | Years | OEM Part No. | Notes |
|---|---|---|---|---|---|---|
| MerCruiser | D2.8L | 165 | 4-Stroke | 35-807256T | D-Tronic version | |
| MerCruiser | D3.0L | 150 | 4-Stroke | 1994–1997 | 35-807256T | VM 183 I/L5, Serial #0D725460 and up |
| MerCruiser | D3.6L | 180 | 4-Stroke | 1994–1997 | 35-807256T | VM 219 I/L6, Serial #0F306930 and up |
| MerCruiser | D4.2L | 220 | 4-Stroke | 35-807256T | IDI version, Serial #0F450250 and up | |
| MerCruiser | D4.2L | 250 | 4-Stroke | 35-807256T | D-Tronic version, VM 254 I/L6 | |
| MerCruiser | D4.2L | 300 | 4-Stroke | 35-807256T | D-Tronic version, VM 254 I/L6 | |
| MerCruiser | D7.3L | 260-300 | 4-Stroke | 1998–1999 | 35-807256T | D-Tronic version |
This filter also fits the following Cummins MerCruiser Diesel (CMD) models.
| Brand | Model | Rated HP | Stroke | OEM Part No. |
|---|---|---|---|---|
| CMD | 2.8 EI | 165-170 | 4-Stroke | 35-807256T |
| CMD | 2.8 ES | 165-170 | 4-Stroke | 35-807256T |
| CMD | 4.2 EI | 250-320 | 4-Stroke | 35-807256T |
| CMD | 4.2 ES | 250-320 | 4-Stroke | 35-807256T |
| CMD | 4.2 MI | 200-230 | 4-Stroke | 35-807256T |
| CMD | 4.2 MS | 200-230 | 4-Stroke | 35-807256T |
Technical Specs
- Product Type
- Diesel Fuel Filter (Water Separating)
- Installation
- Spin-on, vertical or inverted orientation
- Fuel Type
- Diesel only
- Dimensions
- 16.0 x 9.0 x 9.0 cm
- Weight
- 0.32 kg (0.7 lb)
What’s in the Box
- 1 x Water Separating Fuel Filter (35-807256T)
Installation Notes
- Shut off the fuel supply valve and place a drain pan under the filter.
- Unscrew the old filter canister and drain any remaining fuel.
- Clean the filter mounting base and ensure the surface is free of debris.
- Apply a thin layer of clean diesel fuel or oil to the gasket of the new filter.
- Screw the new filter on by hand until the gasket makes contact with the base.
- Tighten the filter an additional 3/4 to one full turn, following any specific torque instructions for your engine. Do not over-tighten.
- Open the fuel supply valve and prime the fuel system according to your engine manufacturer's procedure.
- Start the engine and check for any leaks around the filter.
Troubleshooting & FAQ
How can I be sure this filter fits my engine?
This filter fits a specific range of MerCruiser and CMD engines. The best way to confirm fitment is to match your engine's model, year, and serial number against the compatibility tables above. Also, cross-reference the part number on your existing filter with those in our Part Number Matrix.
What are the signs of a clogged or failing fuel filter?
Common symptoms include engine sputtering, loss of power, difficulty starting, or stalling under load. If you notice these issues, inspect and replace your fuel filter as a primary troubleshooting step.
How often should this diesel fuel filter be replaced?
Replacement intervals depend on fuel quality, engine hours, and operating conditions. As a general rule, we recommend replacing the filter at least once per season or every 100-200 hours of operation, whichever comes first. Refer to your engine's service manual for the most accurate schedule.
Is a special tool required for installation?
While usually hand-tightened, a filter wrench may be needed to remove the old filter, especially if it was over-tightened. The new filter should be installed by hand to avoid damaging the housing or gasket.
OEM vs. Aftermarket?
This listing is an aftermarket replacement (not OEM). Built to OEM-level specifications with comparable materials. Manufactured in an ISO 9002 facility, batch-inspected for consistency.
Shipping speed & cost
We ship worldwide quickly—typical transit 5–15 days. Standard shipping is free; expedited options appear at checkout where available.
Warranty & returns
Covered by a 1-year warranty against manufacturing defects under normal use. If issues arise, contact support with your order details. Returns are accepted within our standard window (unused & in original condition). See our policy page or reach out for instructions.
Safety & Important Info
- Verify images/specifications vs your original part. If anything differs—even if your model appears compatible—do not purchase.
- This is an aftermarket replacement, not an OEM component.
- Professional installation is recommended for safety and performance.
About Sea Sierra
- Pro-Grade Standards — We supply marine parts engineered to OEM-level tolerances and tested for real-world conditions.
- Fast Global Fulfillment — Free standard delivery to most regions in 5–15 days.
- Manufacturer-Direct Value — Fair pricing without compromising on materials or QC.
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