Parameters
Part Type
replacement
Manufacturer Part Number
8M6002988, 804533, 889431
Interchange Part Number
8M6002988, 804533, 889431
Compatibility
| Make | Model | Year | Trim | Engine | Notes |
|---|---|---|---|---|---|
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$ 212.40
Market Price: $236.00 0 People Puchased
Free Delivery
Fuel Rail Diaphragms 8M6002988 + Tracker Diaphragm 804533 + Tool Kit 889431 New
Quantity:
-
+
If you have a large demand for this product, please send an email to sale@trusauto.us, and we will contact you as soon as possible.
Expected shipping date : Shipped on the second business day.
Shipping cost : For shipping within the United States, most regions are eligible for free delivery, with only a few remote areas subject to pricing based on specific shipping rules.
Return : 60 days returns. Buyer pays for return shipping.
Protection : within 2 years.
$ 212.40
Market Price: $236.00 0 People Puchased
Free Delivery
Fuel Rail Diaphragms 8M6002988 + Tracker Diaphragm 804533 + Tool Kit 889431 New
Quantity:
-
+
If you have a large demand for this product, please send an email to sale@trusauto.us, and we will contact you as soon as possible.
OEM Part Number
Fuel Rail Diaphragms: 2PCS 8M6002988
Tracker Diaphragm: 1PCS 804533
Tool kit: 889431
Fit For the Following Models
8M6002988 – Air/Fuel Regulator Diaphragm
Type: Flat top diaphragm
Internal Structure: With steel balls inside
Application Position:
Fuel or air regulator on port side fuel rail (3.0L engines)
Fuel regulator on port side fuel rail (2.5L engines)
Compatible Engines:
for Optimax 3.0L Models (200–300 HP)
for Optimax 2.5L Models (135–175 HP)
Notes:
Fits both air and fuel regulators on 3.0L engines
Fits fuel regulator only on 2.5L engines
804533 - Tracker Diaphragm
Design Feature: Short knob on top (tracker style)
Engine Compatibility:
for Optimax 2.5L Engines: 135–175 HP
for Optimax 3.0L Engines: 200–300 HP
Installation Location: Starboard fuel rail
Used as tracker diaphragm on both 2.5L and 3.0L engines
Identification: Easily identified by the short knob on the top of the diaphragm
This diaphragm kit restores proper fuel and air pressure regulation in Mercury Optimax engines, helping ensure smooth idle, reliable starting, and stable engine performance.