Fuel Pump 888733T02 888733T1 for Mercury Marine Outboard Optimax 75-300HP Pro XS
This fuel pump is engineered as a direct replacement for the Mercury Marine Outboard Optimax 75-300HP Pro XS. Manufactured to meet or exceed OEM specifications, it delivers reliable performance in demanding conditions. Each unit is tested for fuel flow, pressure rating, and durability before leaving the factory to ensure consistent quality across every order.
Vehicle Compatibility
| Application | Details |
|---|---|
| Fuel Pump 888733T02 888733T1 for Mercury Marine Outboard Optimax 75 | 300HP Pro XS Replace Part Number:888733T02, 888733T1 Applications:Fit for following models:Mercury 3 Cyl 3.6255 Bore 1.5L Optimax 115 2004-2014Mercury 3 Cyl 3.6255 Bore 1.5L Optimax 125 2008-2012Mercury 3 Cyl 3.6255 Bore 1.5L Optimax 75 2005-2014Mercury 3 Cyl 3.6255 Bore 1.5L Optimax 80 2007-2014Mercury 3 Cyl 3.6255 Bore 1.5L Optimax 90 2004-2014Mercury 6 Cyl 3.6265 Bore 3L Optimax 200 2003-2018Mercury 6 Cyl 3.6265 Bore 3L Optimax 225 2003-2018Mercury 6 Cyl 3.6265 Bore 3L Optimax 250 2004-2014Mercury 6 Cyl 3.6265 Bore 3L Optimax 300 2015-2018Mercury 3 Cyl Pro XS 115 2010-2015Mercury 6 Cyl 3.6265 Bore 3L Pro XS 200 2007-2018Mercury 6 Cyl 3.6265 Bore 3L Pro XS 225 2004-2018Mercury 6 Cyl 3.6265 Bore 3L Pro XS 250 2006-2018 |
Replaces OEM Part Numbers
888733T02 • 888733T1
Signs You Need a Replacement
If your equipment is showing any of these symptoms, the fuel pump may be the cause:
- Engine cranks but won’t start — The pump may have lost prime or stopped delivering fuel. Check for fuel at the filter outlet before replacing the pump.
- Stalling under load — A weak pump can’t maintain pressure at high demand. The engine runs fine at idle but dies when you put it to work.
- Fuel pressure warning (if equipped) — Modern equipment monitors fuel rail pressure. A low-pressure warning often means the pump is failing.
- Loud whining from fuel system — A failing pump makes a high-pitched whine that gets louder as it warms up. Normal pump noise is a low hum.
- Air in fuel lines — If you see bubbles in the transparent fuel line or the primer bulb won’t stay firm, the pump may be drawing air through a worn seal.
- Excessive return flow — Too much fuel returning to the tank instead of reaching the injectors indicates internal pump wear.
Before You Replace the Pump
Before replacing the pump, check the fuel filter and fuel lines for restrictions. A blocked filter causes the same symptoms as a failing pump on equipment. When installing the new pump, fill it with clean fuel before connecting the lines — this reduces priming time and prevents dry-run damage. After installation, bleed the system fully and check for leaks at all connection points. Replace the fuel filter at the same time as the pump to protect the new unit from debris.
Frequently Asked Questions
Can I cross-reference 888733T02 with 888733T1?
Yes. Both 888733T02 and 888733T1 are interchangeable OEM numbers for this part. They refer to the same component with the same specifications, just different part number revisions.
My vehicle is a 2004 model – is it covered?
The compatibility range for this part includes 2004-2014. The 2004 model year falls within this range, but verify the engine code and body type match. Mid-year production changes sometimes mean two vehicles from the same model year use different parts.
Reviews
There are no reviews yet.