Alternators 104211-3164 27060-36080 104211-3161 270600V170 refer to Toyota
Applicable models:Toyota
Consult now
Reference part number:104211-3164 27060-36080 104211-3161 270600V170 104211-3164 27060-36080 104211-3161 104211-3541 210-1244 60-965-900 27060-36080 210-0875 210-1244 27060-0V170 849184 14486
Product Attributes
| Rated output : | 12V 100A |
| Pulley : | 6PK |
| Size : | 24*18*17single unit inner box |
| Weight : | net weight： 5.65KG gross weight：5.95KG |
| Packaging : | Neutral kraft paper packaging |
| Spot/Pre sale : | Spot goods |
| Warranty : | 1 year |
| Product number : |
Product Details
| Type : | Altemator |
| Specification : | 12V 100A |
| Pulley : | 6PK |
| Brand : | nuojin |
| Number : | 104211-3541 104211-3164 |
| Quality : | Remanufacture |
| Delivery time : | 10 day |
This document outlines the general disassembly and installation procedure for the common 12V automotive alternator used in Toyota vehicles, applicable to most Toyota passenger cars with transverse or longitudinal engines, including Corolla, Camry, RAV4, Highlander and other models. Minor differences exist in brackets, pulleys, and connector positions across different model years, engine displacements and engine types (such as 2ZR, 1AR, 3GR, etc.). Always refer to the vehicle-specific service manual before operation.
I. Pre‑installation Preparation and Safety Precautions
Power Disconnection Safety
Turn off the engine, remove the key, and disconnect the negative terminal of the battery to prevent short circuits and accidental engine startup during installation.
Tool Preparation
Sockets, ratchet wrenches, ring spanners, torque wrenches, open‑end wrenches, special tools for belt tensioners, work gloves, safety goggles, rags and cleaning agents.
Component Inspection
Verify that the model, connectors, mounting brackets and pulley size of the new alternator are consistent with the original unit. Check that the bearing has no radial play and that the terminals are free of oxidation.
Environmental Requirements
Perform work only on a completely cold engine to avoid scalding. Clean up oil and grease in the engine compartment as much as possible.
II. Removal of the Old Alternator (Preparatory Steps for Installation)
1. Remove Auxiliary Components and the Drive Belt
Locate the automatic belt tensioner. Use a wrench or special tool to apply force in the opposite direction of the tension to release the multi‑V drive belt, then remove the belt from the alternator pulley.
If components such as the air intake hose, protective covers, wiring harness brackets or coolant pipes obstruct access, loosen the clips and bolts, mark their positions, and move them aside.
2. Disconnect Electrical Circuits
First disconnect the field connector and signal connector on the alternator. Press the locking tab and pull out the connector smoothly; do not pull forcefully on the wiring harness.
Then remove the B+ positive output main cable (thick cable secured with a nut). Insulate the terminal to prevent short circuits caused by grounding.
3. Remove Mounting Bolts
Toyota alternators are typically secured with 2 to 3 main mounting bolts, with common configurations as follows:
One long adjusting arm bolt (for some older models with manual tensioning);
One or two lower bracket mounting bolts;
Some models are equipped with integrated tensioner bracket bolts.
Remove bolts following the sequence: upper first, lower second; long first, short second. Record the length and position of each bolt to avoid incorrect installation.
4. Remove the Old Alternator
Gently rock the alternator to disengage it from the mounting bracket, then extract it through the clearance in the engine compartment. Take care not to bump the oil pan, radiator or wiring harness.
III. Standard Installation Procedure for the New Alternator
1. Pre‑installation Positioning
Place the new alternator into the original mounting bracket. First install the lower main mounting bolt and tighten it by hand only, without full torque, so that the alternator can move slightly to facilitate belt alignment later.
2. Install the Drive Belt
Route the multi‑V belt sequentially around the crankshaft pulley, water pump pulley, air conditioning compressor pulley and idler pulley, and finally fit it onto the alternator pulley.
Use a tool to depress the automatic tensioner to ensure the belt is fully seated in the grooves. Confirm that the belt is free of twists, uneven wear and misalignment.
Release the tensioner slowly to allow the belt to tension naturally. Rotate the belt by hand and check for proper deflection (generally around 10 mm of depression at the midpoint; specifications vary by vehicle model).
3. Torque Mounting Bolts (Critical Step)
Tighten the bolts in stages and in a diagonal sequence as specified in the service manual to avoid bracket deformation and alternator misalignment.
Reference torque values for common Toyota models (for reference only; always follow the official manual):
Alternator bracket mounting bolts: 18–25 N·m
High‑power models / long adjusting bolts: 40–50 N·m
After tightening, recheck that the alternator pulley is coplanar with other pulleys and free of misalignment.
4. Restore Electrical Connections
First install the B+ positive output main cable and tighten the terminal nut to ensure reliable, secure contact free of looseness and oxidation.
Then reconnect the field connector and signal connector. A clear “click” indicates the lock is engaged. Inspect the connectors for looseness and the pins for deformation.
Clean oil contamination from the terminals. Apply conductive grease if necessary to prevent oxidation.
5. Reinstall Auxiliary Components and Restore Power
Reinstall all previously removed protective covers, air intake hoses, wiring harness brackets and coolant pipes. Secure all clips and bolts.
Reconnect the negative battery terminal and tighten the terminal nut.
IV. Post‑installation Testing and Troubleshooting
Idle Test
Start the engine and let it idle. Observe the following conditions:
No abnormal noise, squealing or vibration from the alternator and belt;
No belt slipping, smoking or uneven wear.
Voltage Inspection
Measure the voltage across the battery terminals using a multimeter:
Static voltage with engine off: approximately 12.6 V;
Charging voltage at idle: normal range is 13.8–14.7 V.
Low voltage indicates insufficient or no charging; high voltage points to a faulty regulator, which may damage the battery and electrical components.
Load Test
Turn on the headlights, air conditioning and blower motor. Monitor voltage stability. Voltage should remain steady with increasing engine speed.
Leakage and Looseness Inspection
Check the alternator mounting area, pulley and terminals for oil leaks, loose fasteners and abnormal overheating odors.
This document summarizes the key precautions for the entire process of installation, removal and commissioning of Toyota 12V alternators. It is organized into six complete, actionable specifications for on-site reference: safety, disassembly and assembly, electrical circuits, belts, test and acceptance, and special vehicle models.
I. Core Safety Precautions (Must Be Prioritized and Observed)
Operate Only on a Fully Cold Engine
All work must be performed only after the engine has cooled down completely. The engine, exhaust pipe and turbocharger components reach extremely high temperatures and can easily cause scalding. Forced disassembly and installation on a hot engine are strictly prohibited.
Strictly Implement Battery Disconnection
Before disconnecting or connecting electrical circuits, the engine must be turned off, the key removed, and the negative battery terminal disconnected. The negative terminal should be wrapped with insulating cloth to prevent accidental short circuits caused by grounding. It is strictly forbidden to plug or unplug the alternator wiring harness or remove the positive output cable without disconnecting the power. Failure to comply will result in electric sparks, harness burnout and ECU damage.
Prohibit Live Working and Illegal Wiring
The alternator B+ positive terminal is always live and carries battery voltage even when the engine is off. During wiring, positive and negative connections must never be crossed, and exposed wires are strictly prohibited. All connectors must be properly insulated. After replacing the alternator, reverse wiring, arbitrary wire modification and jumper wiring are forbidden. Violations will directly burn out the alternator regulator and on-board electrical equipment.
References：
The core sources of the Toyota 12V alternator installation methods and precautions provided earlier are listed below, divided into three categories: authoritative original equipment sources, general industry specifications, and professional maintenance experience. All information is traceable and verifiable.
I. Core Authoritative Sources (Original Equipment Maintenance Documentation)
Toyota Vehicle‑Specific Official Service Manual
This serves as the primary and most authoritative reference. It covers alternator disassembly and assembly procedures, bolt torque values, electrical connection specifications, tensioner operation, post‑installation testing standards and other details for various model years and engine codes, including 2ZR, 1AR, 3GR, 1MZ‑FE, among others. Clear alternator installation procedures and torque specifications are specified in the service manuals for models such as the Camry XV30 (2002‑2006, 1MZ‑FE/3MZ‑FE) and YARiS XP210 (2020‑2025, G16E‑GTS).
Access channels: Toyota China Automotive Maintenance Technical Information Public System (permission required), Toyota EPC/TSM systems, and third‑party compliant maintenance data platforms including TIS official website mirrors and professional automotive repair databases.
Toyota Technical Service Bulletins (TSB) and Parts Catalogs
Certain models include dedicated technical notices regarding alternator installation, such as special requirements for hybrid vehicles and models equipped with an automatic start‑stop system. Parts catalogs are used to verify alternator model compatibility, mounting bracket configurations, and connector matching.
Related Articles
Starter Motor, Engine Starter, Automotive Parts, Starting System, Electric Motor, Diesel Engine Starter, Auto Electrical Parts....
Can you install an auto starter in any vehicle? Learn how Auto Starter installation works, which cars are compatible, and how manufacturer production and factory supply ensure reliable performance for modern vehicles.....
Discover what vehicles use auto starter systems and how Auto Starter car technology improves safety, convenience, and performance. Learn about manufacturer production, factory supply, and modern applications for cars, trucks, and commercial vehicles.....
Looking for a complete Auto Starter guide? This article explains how auto starters work, types, symptoms, maintenance tips, and how manufacturers and factories supply high-quality starters for global production and bulk orders.....
Learn everything about starter parts, how they work, signs of failure, maintenance tips, and how a professional manufacturer with factory production ensures stable, high-quality starter components for global vehicle owners.....
Explore the real-world Auto Starter disadvantages in industrial and automotive production. Learn how auto starter systems affect reliability, cost, maintenance, and factory manufacturing efficiency.....
