AVI168A Alternator Rotor 12V/24V – OEM Replacement for Prestolite Bus AC System & Heavy-Duty Alternators

Product Parameters

Product Commercial Terms

Competitive Advantage

Parameter Details

【Factory Overview – Real Production, Real Quality】

This AVI168A Alternator Rotor is designed as an OEM replacement for Prestolite high-output alternators used in heavy-duty buses, commercial vehicles, and industrial equipment. As the rotating magnetic field core of the alternator, the rotor directly determines charging efficiency, voltage stability, and system durability.
Engineered for commercial fleet operations, it delivers stable performance under demanding conditions including high engine bay temperatures (up to 200°C), continuous operation at 12,000 RPM, and vibration from rough roads. The plug-and-play design enables easy installation with no soldering or rewinding, reducing vehicle downtime for fleet operators and alternator rebuilders.

Superior Materials & Construction

The AVI168A rotor features a high-permeability laminated steel core, precision-wound with 99.98% pure oxygen-free copper wire – minimizing resistive losses (I²R) and maximizing magnetic flux density. The winding is encapsulated in Class H (180°C) epoxy resin that resists vibration, moisture, and thermal cycling. Unlike generic rotors using lower-grade copper or insufficient insulation, our rotor delivers consistent output even under extreme alternator temperatures.

Electrical Performance

Rated for 12V or 24V systems, the AVI168A rotor operates with a field coil resistance of 2.8–3.2Ω @ 20°C (matched to Prestolite regulators). It supports continuous field current up to 5.5A, generating a magnetic field strong enough to produce 150A–200A alternator output when paired with compatible stators. The rotor's slip rings are made from high-density copper alloy with silver coating, ensuring <0.1Ω contact resistance and long brush life.

Thermal & Mechanical Resilience

Heavy-duty bus alternators run hot – especially in engine bays or during summer HVAC operation. The AVI168A rotor is dynamically balanced to ISO 1940 G2.5 grade, reducing bearing wear and noise. It withstands continuous operation at 12,000 RPM and peak temperatures of 200°C without demagnetization or insulation breakdown. Validated in 500+ hours of bench testing under full load with ambient temperatures up to 120°C.

OEM Replacement Compatibility

Directly replaces OEM Prestolite rotor part number AVI168A in alternator models including:
Prestolite 8SC3110VC, 8RL3023C, 8LHA3037V
Leece-Neville 4850 series
Yuchai, Cummins, Volvo, Daewoo bus alternators
Includes pre-installed slip rings and fan. No soldering or rewinding required – just unbolt the old rotor and install this unit.
Typical vehicle models: Yuchai 6CT, Cummins 6CT, Volvo D12, Daewoo BS106, King Long XMQ6127, Higer KLQ6119.

Specifications

Competitive Advantage

【Factory Tour – See Where Your Alternator Rotors Are Made】

1. Production Workshop – Lamination Stamping & Copper Winding

High-silicon steel lamination stamping – precision dies for consistent core geometry
Automatic copper winding – 99.98% oxygen-free copper wire on CNC machines
Class H epoxy encapsulation – 180°C rated for extreme heat resistance
Monthly production capacity: 5,000+ rotor units

2. Assembly Line – Dynamic Balance & Final Assembly

ISO 1940 G2.5 dynamic balancing – vibration-free operation at 12,000 RPM
Precision slip ring installation – copper alloy with silver coating for long brush life
100% dimensional inspection – CAD-verified tolerances
Batch traceability labels applied to every unit

3.Warehouse & Inventory – Ready for Shipment

Finished goods storage – 3,000+ units of AVI168A ready for dispatch
Spare parts inventory – slip rings, fans, and hardware for alternator rebuilders
Organized bin system with part number labeling
Export-ready packaging – anti-collision inner box + reinforced outer carton

Quality Assurance

Each rotor undergoes 100% testing before shipment:

Our failure rate is <0.2% over 2 years of field use, compared to industry average 3–5%. Backed by a 13-month warranty.

Packaging & Shipping

1 PC packed in reinforced inner box + outer carton
Anti-collision foam inserts + moisture-proof wrapping
Lead time: 5–7 days after payment confirmation
Shipping: DHL, FedEx, UPS, EMS, sea freight, air freight

Company Profile

Hunan Weili Auto Parts Appliance Co., Ltd. founded in 2007, is a premier Chinese manufacturer of high-quality alternator rotors, electric fans, blowers, and lighting components for heavy-duty vehicles including buses, trucks, refrigerated vans, and construction machinery.

Production facility:

Located in Hunan Province, China
Production area: 5,000 m²
3 dedicated assembly lines
Annual capacity: 60,000+ rotor units
ISO9001, IATF 16949, CE, RoHS certified

Our Factory:

Exhibition:

【Distributor & Agent Recruitment – Join Our Global Network】

We are actively recruiting overseas distributors, regional agents, and aftermarket partners for our complete range of Shacman heavy duty truck LED tail lights and commercial vehicle lighting products.

Why become our authorized agent?

Ideal partners include:

Heavy duty truck parts distributors
Commercial vehicle aftermarket suppliers
Fleet maintenance service providers
Online auto parts retailers (eBay, Amazon, Alibaba, local e-commerce platforms)
Independent repair shop networks
Shacman truck dealerships and service centers
Available product lines for agents:
LED tail light assemblies (24V) for Shacman F3000/X3000/M3000/X5000 series
Wiring harness adapters for bulb-to-LED conversion
Complete range of bus and truck lighting components
Electric fans and blowers for commercial vehicles
Compressor spare parts for refrigerated trucks

How to apply:

Contact us with your:
Company name and market location
Current product lines and customer base
Estimated annual volume for truck lighting products
Warehousing and logistics capabilities
We will respond within 2 business days with a customized agency proposal, including pricing, territory definition, and sample order process.
Contact our agency team: [[email protected]]