BDFHYK E3678M fuel pump module for Express Savana vans

E3678M complete pump sender reservoir and float-arm assembly

E3678M seven-pin connector fuel ports and flange details

E3678M Express Savana series engine and body fitment reference

E3678M tank-pressure sensor and fuel-line layout

E3678M OE 19133515 FG0399 interchange reference

E3678M module height sender and float-arm orientation

Chevy Express GMC Savana Fuel Pump Module Assembly 2004-2008 4.3L V6 Replacement E3678M BDFHYK

$59.99

Product Detail

Type Fuel Pump Assembly
SKU BDDLZ-BD-05-07686
OE Number E3678M, P76087M, P76088M, 67540, 67541, 67570, 67571, SP3678M, FG0399, MU1436, 19133515, 19133518, 19153038

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This electric fuel pump module assembly is a direct OE replacement fuel system part for Chevrolet Express and GMC Savana vans. Designed for 2004-2008 models with a 4.3L V6 gasoline engine, it helps restore stable fuel pressure and reliable fuel delivery for daily driving, fleet service, cargo van use, and vehicle repair applications.

Vehicle Fitment & OE Replacement Reference

Year	Vehicle	Engine	Notes
2004-2008	Chevrolet Express 1500/2500/3500	4.3L V6	Gasoline Full-Size Van
2004-2008	GMC Savana 1500/2500/3500	4.3L V6	Gasoline Full-Size Van

OE Replacement Reference

E3678M

Product Details

Item	Details
Product Type	Fuel Pump Module Assembly
Function	Delivers fuel from the tank to the engine while maintaining stable fuel pressure
Fuel System	Gasoline Fuel Delivery System
Installation Location	Inside Fuel Tank (Tank-Mounted)
Assembly Includes	Electric Fuel Pump + Fuel Sending Unit
Operation Mode	Electric
Mounting Type	Tank Mount
Vehicle Application	Chevrolet Express / GMC Savana Van Repair

Common Failure Symptoms

A failing fuel pump may cause the following issues:

Hard Starting: Engine requires extended cranking before starting.
Engine Hesitation: Vehicle may hesitate during acceleration due to unstable fuel delivery.
Loss of Power: Insufficient fuel pressure may reduce performance, especially under load.
Engine Stalling: Fuel supply interruption may cause unexpected shutdown.

Features & Benefits

Direct OE Replacement Fit
Designed to match original fuel system specifications for compatible Chevrolet Express and GMC Savana models.

Complete Fuel Pump Module
Includes the electric fuel pump and fuel sending unit for a complete replacement solution.

Stable Fuel Delivery
Helps maintain consistent fuel pressure and reliable fuel flow for engine operation.

Built for Van and Fleet Applications
Designed for daily driving, cargo service, fleet maintenance, and full-size van repair.

Installation Guide

Step 1: Relieve Fuel Pressure
Disconnect battery power and release fuel system pressure before removal.

Step 2: Remove Fuel Tank
Support and lower the fuel tank to access the original fuel pump module.

Step 3: Replace Fuel Pump Assembly
Remove the old module and install the replacement assembly using the supplied seal and connections.

Step 4: Reconnect & Test
Reconnect fuel lines and wiring, prime the system, and check for proper operation and leaks.

Technical Specifications

Part Number	E3678M
Product Type	In-Tank Fuel Pump Module Assembly
Installation Location	Inside the fuel tank
Operating Voltage	12 V
Fuel Type	Gasoline
Application	Selected 2004–2008 Chevrolet Express and GMC Savana
Series Coverage	1500, 2500 and 3500 applications vary by engine, body and year
Engine Coverage	Product listing targets 4.3L V6; interchange catalogs also contain other engine-specific applications, so VIN verification is required
Body Configuration Check	Cargo, passenger and cutaway configurations can use different tanks and modules
Module Functions	Fuel delivery and fuel-level reporting
Fuel Level Sending Unit	Included in the listed complete-module configuration
Float Arm and Reservoir	Included
Strainer and Tank Seal	Check actual package and install the correct new seal
Electrical Connector	Seven-pin configuration is listed for common E3678M assemblies; compare shape and keying
Fuel Outlet and Ports	Compare line quantity, diameter and orientation
Pressure Sensor	Compare the tank-pressure sensor and EVAP connection with the removed module
OE References	19133515, 19133518, 19153038
Interchange References	E3678M, P76087M, P76088M, SP3678M, FG0399, MU1436
Fitment Priority	VIN, series, engine, cargo/passenger/cutaway body, tank, OE number, connector, ports and dimensions

Q: Which vehicles use the E3678M module?

A: It covers selected 2004–2008 Chevrolet Express and GMC Savana van configurations.

Q: Which series are listed?

A: Applications can include 1500, 2500 and 3500 models, but year, engine and body configuration must be verified.

Q: Is this page targeted to the 4.3L V6?

A: Yes. The current product listing targets selected 4.3L V6 applications; confirm the VIN and OE number before ordering.

Q: Do cargo, passenger and cutaway bodies matter?

A: Yes. Body type and tank design can change the module, and some catalogs specifically exclude cutaway configurations.

Q: Is the fuel-level sending unit included?

A: The listed complete-module configuration includes the sender and float arm.

Q: What connector should be checked?

A: A seven-pin configuration is commonly listed, but the connector shape and keying must match the original.

Q: Which OE numbers should be compared?

A: Compare 19133515, 19133518 or 19153038 with the removed module.

Q: What should be tested before replacement?

A: Test fuel pressure, pump voltage and ground under load, fuse and relay operation, wiring, fuel-line restriction, and sender continuity before replacing the module.

Q: Can a module from another Express or Savana engine be substituted?

A: No. Engine, body, tank, connector, ports and sender geometry can differ.

Q: What checks are required after installation?

A: Prime the system, inspect the flange and fuel connections for leaks, measure fuel pressure, and confirm normal fuel-gauge operation.

Returns & Refunds

We accept returns within 30 days of delivery for eligible items. If the product is unused and in original condition, you may request a return according to our refund policy. Full policy details: View Refund Policy . We recommend contacting our support team before initiating a return to ensure the fastest resolution.

Customer Support

If you purchased the wrong part, received an incompatible item, or need installation assistance, please contact us directly.

Email: service@bdfhyk.com

Business Hours:

Mon–Fri 9:00–18:00 (GMT+8)

Mon–Fri 19:00–04:00 (UTC−6 / CST)

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