GEM Module

1995-1997 Ford Ranger Mazda B3000 B4000 4x2 GEM F77B-14B205-DA OEM

OEM Part Number
F77B-14B205-DA
by Ford·MPN F77B14B205DA
$74.99
Sold out — sourcing in progress
Will this fit your vehicle? See the fitment table below to check.
BEFORE YOU BUY

VIN programming required after install

This module needs VIN programming after install. A dealer or locksmith with the right scan tool can do it. Not sure your installer can program? Message us first — we'll help you confirm.

PART CONDITION

Tested functional. Cleaned.

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This OEM 4x2 GEM (Generic Electronic Module) fits 1995–1997 Ford Ranger, Mazda B3000, and Mazda B4000 and carries OEM part number F77B-14B205-DA, with interchange numbers F77B-14B205-DB and F67Z-14B205-DA. The unit has been tested functional and cleaned, and programming is required prior to installation.

Vehicle fitment

Fits 1995–1997 Ford Ranger; 1995–1997 Mazda B3000; 1995–1997 Mazda B4000. Replaces OEM # F77B-14B205-DA.

Years Makes Models
1995–1997 Ford Ranger
1995–1997 Mazda B3000
1995–1997 Mazda B4000

Please note: 4x2 trucks. GEM modules are option-specific — match your part number exactly; dealer configuration may be required after replacement.

Is this your problem?

A quick diagnostic from the shop — see the symptoms before you buy, so you order the right part once.

Read the full transcript
Symptoms of a bad gem module on your late 90s to early 2004 truck. If you're experiencing any of the following symptoms on your general electronic module, the generic electronic module on your vehicle's most likely fried. Number one, ghost accessories. Your windshield wipers turn on by themselves. Your radio stays on after you turn the vehicle off and pull your key out. Number two, 4x4 failure. You flip the switch, nothing happens, or you just hear a rapid clicking sound deep in the dashboard. battery drain. A shorted gem will keep your network awake and will drain a brand new battery overnight. Nine out of ten times this is caused by leaking windshield. The water actually drips down onto your gem module. So use the Fitment tool on my website, drop your make model, gear in the comments, and I'll help you diagnose the issue and we'll get you set up with a replacement gem.

Specifications

Part Identification

OEM Part Number
F77B-14B205-DA
Brand
Ford
Also Replaces
F77B-14B205-DB, F67Z-14B205-DA
Also searched as
F77B14B205DA
Also Known As
Generic Electronic Module, Ford GEM, Multifunction Module

Condition & Testing

Condition
Used

Specifications

Material
Plastic
Color
Black
Connector Type
Latching Block Connector
Terminal Type
Flat Male Pin / Blade terminals
Terminal Count
44
Placement
  • Front
  • Center
  • Upper
Dimensions
6.0" H × 10.0" L × 6.0" W · 24.0 oz

Compliance

Country of Origin
United States

Frequently asked questions

Will this GEM Multifunction Module fit my 1995-1997 Ford Ranger?
Yes — this is a direct-fit OEM replacement for the 1995-1997 Ford Ranger and 1995-1997 Mazda B2300, B3000, B4000. Message us your VIN if you want us to double-check compatibility before you buy.
Is this part tested?
Yes. Every part is inspected and tested before listing. Used condition with a 30-day money-back guarantee.
Is this OEM or aftermarket?
100% OEM. Never aftermarket. We only sell genuine factory parts.
What is the OEM part number?
The OEM part number is F77B-14B205-DA.
Can you verify fitment before I buy?
Absolutely — message us your VIN and we'll confirm this part fits your vehicle before you purchase.
What is your return policy?
30-day money-back guarantee on every order. Free return shipping if the part doesn't fit or match the description.
What is this GEM Multifunction Module also called?
This GEM Multifunction Module is also known as: Generic Electronic Module, Ford GEM, Central Timer Module, CTM, Multifunction Module. These are different names for the same part.
What other part numbers does this GEM Multifunction Module fit?
This GEM Multifunction Module is interchangeable with the following OEM part numbers: F77B-14B205-DB, F67Z-14B205-DA. The primary OEM part number is F77B-14B205-DA.