FOR FORD Expedition 5.4 Car Alternator 1042104700 1042105630 7L7T10300AB
Applicable models:FORD Expedition 5.4
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Reference part number: GL-954 GL-987 GL987 1042101110，1042105970，9L3T10300CB 9W7T10300AA 9W7Z10346A AL1T10300AA AL1Z10346A 9L3Z10346C，AL1T10300AA，AL1Z10346A 1042101110 1042101270 1042101980 1042104700 1042105630 1042105820 1042105821 1042105860 9C3T10300AC 9C3Z10346A 9L3T10300CB 9L3Z10346C 1042105970 7L7T10300AB 7L7T10300AC 7L7T10300X 11293N DC2Z10346A 7L7Z10346A 104210-5970 11292 104210-1110 104210-5970 7L7T10300AC 7L7T10300X 7L7Z10346A 7L7Z10346B
Product Attributes
| Rated output : | 12V 150A |
| Pulley : | 6PK |
| Size : | 24*12*16single unit inner box |
| Weight : | net weight：5.75KG gross weight：6.1KG |
| Packaging : | Neutral kraft paper packaging |
| Spot/Pre sale : | Spot goods |
| Warranty : | 1 year |
| Product number : |
Product Details
| Type : | ACgenerator |
| Specification : | 12V 150A |
| Pulley : | 6PK |
| Brand : | nuojin |
| Number : | 104210-5970 7L7Z10346A |
| Quality : | RENOVATE |
| Delivery time : | 10DAY--30DAY |
Ford Expedition 5.4L 12V/150A Alternator Installation Method (OEM Standard Procedure)
Applicable to Ford Expedition models equipped with the 5.4L Triton engine. The installation process complies with the specifications of the Ford Factory Service Manual (FSM). Ensure precise torque values and correct wiring connections throughout the process to avoid electrical malfunctions or mechanical abnormal noises.
Pre-Installation Preparation
1. Tools and Accessories
Basic tools: 10/13/15/18mm socket/open-end wrenches, torque wrench (0-100N·m range), flathead/crosshead screwdrivers, ratchet wrench, extension barsSpecial/auxiliary tools: Serpentine belt tool (for tensioner), torque multiplier (optional), electrical tape, cable tiesEssential accessories: New alternator (12V/150A, OE reference numbers: GL-8712/DL3Z-10346-A, must match vehicle model and year), OEM high-strength alternator mounting bolts (recommended for replacement), drive belt tensioner (replace if aged), engine drive belt (inspect for cracks, replace if necessary)
2. Safety Precautions
Turn off the engine and disconnect the negative battery terminal (10mm bolt); wrap the connector with electrical tape to prevent short circuits from accidental contact.Allow the engine to cool to room temperature to avoid burns from high-temperature components.If lifting the vehicle, secure it at the OEM lift points with a lift or jack stands (jack + safety stands); never work on a vehicle supported only by a jack.
Removal of the Old Alternator (Reverse Procedure, Complete Before Installation)
(Skip this step if the old alternator has been removed. Key note: Mark the positions of wiring connectors to avoid misconnection during installation.)Remove the engine upper cover (if equipped, mostly secured by clips/bolts).Use a serpentine belt tool to depress the belt tensioner, remove the engine drive belt, and record the belt routing (photograph recommended).Disconnect the alternator electrical wiring: Unplug the voltage regulator connector (clip-type, press the clip lightly to disconnect), remove the positive battery power cable (13mm nut, mark the position clearly), remove the ground wire (10mm bolt).Remove the alternator mounting bolts: First remove the upper mounting bolt (18mm), then the lower mounting/ bracket bolt (15mm). Note the installation positions of the bolts (upper and lower bolts have different specifications, store separately).Remove the old alternator from the side of the engine compartment, taking care to avoid surrounding pipelines (coolant hoses, fuel lines) to prevent damage from impact.
Core Installation Steps (OEM Standard Procedure)
Step 1: Alternator Positioning and Preliminary Securing
Place the new alternator into the OEM mounting bracket in the engine compartment, ensuring the alternator pulley is aligned on the same plane as the crankshaft pulley and tensioner (no offset, otherwise belt abnormal noise or skipping will occur).First install the lower mounting bolt (15mm) and hand-tighten the threads (do not fully tighten, leave adjustment allowance); then install the upper mounting bolt (18mm) and hand-tighten in the same way. The alternator should be slightly movable at this stage for subsequent belt tension adjustment.
Step 2: Electrical Wiring Connection (Critical, Misconnection Will Burn the Alternator/PCM)
Connect strictly according to the marked positions; ensure all wiring connectors are fully seated and tight with no oxidized terminals:Connect the alternator ground wire: Press the ground wire terminal against the ground point on the alternator housing, tighten the 10mm bolt to a torque of 18-22N·m.Connect the positive battery power cable: Slide the terminal of the heavy-gauge power cable onto the alternator positive terminal, tighten the 13mm nut to a torque of 25-30N·m, fit the OEM insulating cover (if equipped), and secure the cable with cable ties to avoid friction with the pulley.Connect the voltage regulator connector: Align the connector with the alternator socket and press until a "click" is heard from the clip, ensuring the connector is fully seated with no looseness (the connector is keyed and cannot be reversed).Organize all wiring: Secure the wiring to the OEM wiring harness clips on the engine with cable ties, keeping it away from high-temperature components (exhaust manifold) and moving parts (pulleys, fan).
Step 3: Installation of the Engine Drive Belt
Route the belt over the crankshaft pulley, tensioner, A/C compressor pulley and water pump pulley in sequence according to the recorded routing (or the OEM belt routing diagram in the engine compartment), and finally over the alternator pulley.Depress the tensioner with a serpentine belt tool, fully seat the belt on all pulleys, release the tensioner slowly to allow the belt to tension naturally. Inspect the belt for no offset or slack, and ensure the belt fits tightly in all pulley grooves.
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Key Precautions for Ford Expedition 5.4L 12V/150A Alternator Installation (OEM Specifications + Practical Pitfall Avoidance)
All precautions comply with Ford Factory Service Manual (FSM) Section 303-05 and SAE J1171 Automotive Charging System Installation Standards, covering five core dimensions: safety protection, precise torque application, electrical malfunction prevention, mechanical adaptation, and post-installation troubleshooting. These guidelines prevent abnormal noise, charging failures, component burnout and other issues after installation.
I. Mandatory Safety Operation Requirements (Irreversible, Prevent Personal/Vehicle Injury)
Keep the negative battery terminal disconnected throughout the process until all installation and wiring connections are completed. No live-wire operations are allowed to prevent short circuits that could burn out the alternator/powertrain control module (PCM).Allow the engine to cool completely before operation to avoid burns from high-temperature components such as the exhaust manifold and alternator housing, and to prevent deformation of rubber belts due to high heat.When lifting the vehicle, support it only at the OEM lift points with double fixation via safety stands. Never work on a vehicle supported solely by a jack. Avoid coolant hoses and fuel lines when removing/installing the alternator to prevent pipeline damage from impact or cracking.Do not touch metal wiring terminals directly with bare hands when connecting wires to prevent terminal oxidation caused by oil or moisture on hands, which may lead to poor contact and overheating.
II. Mandatory Torque Specifications (Aluminum Brackets Prone to Thread Stripping, Zero Tolerance)
The alternator mounting bracket of the Ford 5.4L engine is made of aluminum; excessive force when tightening bolts will cause thread stripping and bracket deformation. All bolts and nuts must be precisely tightened with a torque wrench—final fixation is prohibited without a torque wrench. Key torque values are as follows:
| Component/Connector | Specification | Standard Torque | Notes |
|---|---|---|---|
| Alternator lower mounting bolt | 15mm | 45-50N·m | Tighten first, leave adjustment allowance for the upper bolt |
| Alternator upper mounting bolt | 18mm | 55-60N·m | Tighten last to complete final fixation |
| Positive battery power cable nut | 13mm | 25-30N·m | Fit the OEM insulating cover after tightening |
| Alternator ground wire bolt | 10mm | 18-22N·m | Mount on the housing ground point, ensure no loose contact |
| Negative battery terminal bolt | 10mm | 10-12N·m | Tighten as the final installation step |
It is recommended to replace the mounting bolts with Ford OEM high-strength bolts (OE numbers: Upper - W710541-S442 / Lower - W715209-S439). Ordinary bolts tend to loosen due to engine vibration, leading to pulley offset and abnormal noise.
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References：
I. Core OEM References (Ford Workshop Manual, FSM)
Main Chapter: Ford Expedition 5.4L Triton Engine (2007–2014) Section 303-05 Charging SystemCoverage: Alternator removal/installation procedures, mounting bolt torque values, wiring connection specifications, drive belt routing and tension standards, post-installation commissioning and fault diagnosis processesOfficial Sources: Ford Technical Service Information (TIS), Ford OEM Workshop Manual (dealer-exclusive)
Engine Structure Chapter: Section 303-01 Engine - General InformationSupplementary Content: Installation prohibitions for 5.4L aluminum brackets, high-strength bolt selection specifications, engine lifting and safety operation requirements
Electrical System Chapter: Section 414-01 Battery/Charging SystemSupplementary Content: Battery disconnection operation specifications, wiring insulation and short-circuit prevention requirements, PCM (Powertrain Control Module) charging system communication fault diagnosis criteria
II. Industry Standard References (SAE International)
SAE J1171: Automotive Alternators and GeneratorsSpecifications: Mechanical tolerances for alternator installation, drive belt tension, electrical connection and insulation, charging voltage output range (13.5–14.8V), safety protection requirements
SAE J2008: Torque Specifications for Automotive FastenersSupport: Industry universal torque standards for alternator mounting bolts, battery terminals, ground wires, etc. (consistent with Ford OEM torque values)
III. Official Parts & OE Specification References
Ford Parts Catalog (FPC)
Alternator OE Numbers: DL3Z-10346-A, GL-8712, FG1501 (12V/150A, compatible with 2007–2014 Expedition 5.4L)
Mounting Bolt OE Numbers: Upper 18mm – W710541-S442, Lower 15mm – W715209-S439 (OEM high-strength bolts, ordinary bolt substitution is prohibited)
Ford Technical Service Bulletins (TSB)Relevant TSBs (e.g., TSB 10-24-6, TSB 13-1-5): Supplementary specifications for troubleshooting and repairing 5.4L alternator bracket deformation, drive belt abnormal noise, and abnormal charging voltage
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