8617773719968
sales@sh-estar.com.cn
enLanguage

Prestolite Starter

Your Professional Prestolite Starter Supplier

Shanghai E-star Auto Co., Ltd. is an integrated enterprise specializing in the design, development, production, and sale of automotive components. The company's product range includes starters and alternators compatible with various engine manufacturing machinery, catering to renowned brands such as Komatsu, Hino, Cummins, Hitachi, Caterpillar, Toyota, Hyundai, Volvo, Deutz, Perkins, Yangma, Doosan, and Mitsubishi. By offering a comprehensive product portfolio, Yixing satisfies the diverse requirements of both domestic and international markets.

Advanced Equipment

Equipped with state-of-the-art production facilities and precision testing instruments, Yixing guarantees the superior quality of every product it manufactures.

 

Quality Control

From raw material selection to each stage of the production process, and finally to finished product testing, Yixing adheres to rigorous quality control standards to ensure compliance with the highest industry benchmarks.

Sales Market

Yixing's products not only secure a significant market share domestically but are also exported to multiple regions worldwide, including North America, South Africa, Southeast Asia, Europe, and the Middle East.

ODM/OEM Services

Yixing offers both OEM and ODM services, enabling customization of materials, styles, and special requirements. Minimum order quantities can be discussed and tailored to meet specific client needs.

 

 
First 123 Last
 
What country is Prestolite starter from?

 

Prestolite  is an American-origin brand, founded in the USA in 1911, headquartered in Michigan, USA.

Original & classic Prestolite starters: Made in USA

Most heavy-duty bus/truck Prestolite starters sold globally today: Manufactured in China (Beijing/Weifang)

Also has factories in Europe & North America worldwide

 

Types of Prestolite Starter
 

Gear Reduction Starters

Gear reduction starters are commonly used in heavy-duty diesel engines. Their smaller, lighter design requires less starting current. They are also ideal for applications with limited space for starter installation.

High Torque Starters

As the name suggests, these starters produce high starting torque. They are suitable for large engines or vehicles that operate under heavy loads or in extreme weather conditions. The starters crank the engine effortlessly in challenging situations.

Permanent Magnet Motors

These starters utilize permanent magnets to improve starter efficiency and reduce power consumption. They are suitable for hybrid or electric vehicles where energy efficiency is critical.

Intermittent Duty Starters

These starters are designed for applications where the starter is used infrequently, such as in buses or trucks with prolonged idling. They have lower heat generation and longer life under intermittent use conditions.

 

HM95R3002SE

Advantages of Prestolite Starter

 

 

Reliability

Petalite starter is known for its reliability and durability, ensuring long-term, consistent performance.

Efficient engagement

Petalite starter is designed to provide smooth and efficient engagement with the flywheel, promoting fast and reliable engine starting.

Reduced wear

Petalite starter materials and construction are typically selected for their wear-resistant properties, which help extend component life and reduce maintenance requirements.

Quiet operation

Petalite starter is designed and engineered to minimize noise during engagement and disengagement, which contributes to overall quieter operation of the starter motor.

Compatibility

Petalite starter is designed to be compatible with a variety of engines and applications, making it versatile and suitable for a variety of automotive and industrial uses.

 

Steps for Replacing a Prestolite Starter
 

Disconnect The Battery
Always disconnect the battery before starting any work on the electrical system of the vehicle to prevent any short circuits or shocks.

 

Remove The Old Starter Motor
First, one has to locate the starter motor, which is usually found on the underside of the vehicle, mounted on the bell housing of the transmission. Then, using a socket wrench, one must remove the bolts that secure the starter motor and disconnect the electrical connections. After that, one can use a gear puller to remove the starter motor from the mounting bracket.

 

Install The New Starter Motor
First, one has to lubricate the mounting bracket and the gearbox of the new starter motor. Then, one has to use a gear puller to install the new starter motor into the mounting bracket. After that, one can reconnect the electrical connections and use a socket wrench to tighten the bolts that secure the starter motor.

 

Reconnect The Battery
Once the new starter motor is installed, one must reconnect the battery. It is advisable to check all the electrical connections and ensure there are no leaks or loose connections before doing so.

 

What is the position of Prestolite starters in the North American heavy truck market?

Prestolite (Leece-Neville) Starters: North American Heavy-Duty Truck Market Position

Prestolite (sold under Leece-Neville brand in NA) is Tier 1 top-tier OE & aftermarket leader, No.2 overall North American heavy-duty truck starter supplier.

OE Original Equipment Status

Core certified OE starter supplier for Daimler Trucks NA (Freightliner/Western Star), Navistar, Paccar (Peterbilt/Kenworth), Cummins engine platforms.

Standard factory-fit starter for long-haul, severe-duty vocational & on-highway North American big rigs.

Exclusive matching for high-torque, cold-climate heavy diesel North American truck engines.

01

Market Share & Ranking

Overall heavy-duty starter share: ~25–30%, firmly #2 in North America behind Delco Remy.

Dominant share: 60%+ North American school bus/transit bus heavy starters; leading share in off-highway/construction heavy-duty rotating electrics.

Aftermarket: Top 1 premium heavy-duty starter brand, unmatched coverage for legacy & modern NA truck platforms.

02

Competitive Position & Strengths

Specializes only heavy-duty rotating electrics (no passenger car business), industry-leading low-temperature cold-start reliability for North American harsh winters.

PowerPro Extreme series: High-torque, long-life starters built for idle-management & stop-start heavy-duty truck duty cycles.

US domestic engineering + North America/Mexico localized production, full OEM-spec warranty & fleet service network.

Long-term exclusive partnerships with all major NA heavy truck & diesel engine OEMs.

03

Competitive Landscape

Delco Remy: #1 overall NA heavy-duty starters

Prestolite / Leece-Neville: #2, premium severe-duty & bus segment leader

Valeo/Mitsubishi: Smaller share, focused on light-medium duty

04

 

What are the differences between Prestolite, Delco, and Bosch starters?

 
productcate-915-487

Prestolite vs Delco Remy vs Bosch Heavy-Duty Truck Starters (North America)

Core summary:

 

  • Delco Remy: #1 NA OE fleet king, most durable daily frequent starts, universal coverage
  • Prestolite (Leece-Neville): Cold-climate high-torque specialist, bus/vocational heavy-duty leader
  • Bosch: German precision planetary gear, anti-shock, long-haul low-wear, global universal fit

 

Core Technical Differences

Prestolite (PowerPro Extreme)

Gear reduction design, ultra-high cold cranking torque (-30°C stable start)

IdlePro low-power draw, battery-friendly for idle management trucks

Heavy-duty bus/severe-duty vibration resistance

Strong low-temperature performance, weak on ultra-frequent daily starts

Warranty: 2–3 year/unlimited miles

Delco Remy (38MT/39MT/42MT)

Patented Integrated Over-Crank Protection (IOCP) + Electric Soft Start

Best-in-class endurance for hundreds of daily engine starts

Internal magnetic switch (IMSS), anti-corrosion & vibration-proof

Lightweight aluminum housing, easy repair & parts availability

Industry benchmark lifespan: 100,000–200,000 start cycles

Warranty: 3-year/unlimited miles NA fleet standard

Bosch (Long Haul Series)

Exclusive planetary gear shock-absorbing structure, anti-kickback, no drive-end breakage

Fixed overrunning clutch, 50% less moving parts, ultra-low wear

Universal flange, fewer SKUs, easy inventory

Stable voltage in all climates, German precision machining

Best for long-haul low-start-frequency, high-shock road conditions

Warranty: 3-year / 350,000 miles

Performance & Practical Comparison

Torque & Cold Start

Prestolite > Bosch > Delco Remy (extreme low-temperature high torque)

Delco Remy most stable continuous cranking in normal temps

Durability & Cycle Life

Delco Remy (frequent daily starts) > Bosch (long-haul low wear) > Prestolite

Vibration & Shock Resistance

Bosch (planetary anti-shock) > Prestolite > Delco Remy

Aftermarket Parts & Repair Convenience

Delco Remy (widest parts supply) > Prestolite > Bosch

Price Level (NA Wholesale)

Delco Remy ≈ Prestolite < Bosch (Bosch ~10–15% higher)

Best Application Choices

Choose Delco Remy: Local delivery, construction, fleets with many daily starts

Choose Prestolite: Northern cold states, school buses, vocational heavy-duty trucks

Choose Bosch: Cross-border long-haul, CAT/Volvo/Mack engines, high-shock rough roads

 

What are the advantages of Prestolite’s Mag Switch technology?

 

 

Advantages of Prestolite’s Mag Switch Technology

 

1.More reliable starting in extreme temperatures

Performs consistently in both extreme cold and high heat, ensuring stable engine cranking for buses, trucks, and heavy-duty vehicles.

 

2.Longer service life & reduced wear

Magnetic actuation reduces mechanical arcing, contact burning, and physical wear, greatly extending the lifetime of the starter.

 

3.Faster, more precise engagement

Provides quicker, more controlled meshing with the engine flywheel, avoiding gear clash and damage.

 

4.Lower power consumption

More efficient electromagnetic operation reduces power draw from the battery, helping preserve battery life and improve cold-cranking performance.

 

5.Superior durability under heavy-duty use

Designed for commercial vehicles (buses, coaches, heavy trucks), it withstands frequent start-stop cycles and harsh working environments.

 

6.Improved safety & stability

Minimizes voltage drops and electrical spikes, protecting both the starter and vehicle electrical system.

 

How to select a Prestolite starter based on engine model (e.g., Cummins, Caterpillar)?

 

 

To select a Prestolite starter by engine model (Cummins, Caterpillar, etc.), follow this step-by-step workflow to ensure fitment, torque, and compatibility.

 

Step 1: Gather Core Engine & System Specs

First, collect these critical details to narrow your choice:

 

Parameter

Details to Note

Engine Model

Exact variant (e.g., Cummins ISB6.7, Cat C7.1, 4BT3.9)

System Voltage

12V (light/medium duty) or 24V (heavy-duty diesel)

Displacement/Type

Liter size & compression (high-compression diesels need more torque)

Mounting Standard

SAE flange (SAE1/SAE2/SAE3) or direct bolt patternPrestolite Electric Incorporated

Pinion Specs

Teeth count (10/11/12T), diameter, & rotation (CW/CCW)

Crank Conditions

Max cranking time (<5s typical), ambient temp, & battery capacity

 

Step 2: Prestolite Series & Power Matching

Prestolite’s heavy-duty series align with engine displacement—match power to your engine’s needs:

 

Prestolite Series

Voltage

Power

Max Engine Displacement

Key Use Case

PowerPro 7

12V

7kW

Up to 16L

High-torque replacement for 39MT

PowerPro 7.5 (M105)

24V

7.5kW

Up to 11L

Cummins ISB/ISC, Cat C7

M110 (PowerPro 7 Extreme)

12V

7kW

Heavy-duty

Over-crank protection (OCP) & wet clutchPrestolite Electric IncorporatedPrestolite Electric Incorporated

42MT

24V

7.5kW

11–16L

Straight-drive, high-speed cranking

S152 (Extreme Duty)

24V

15kW

Large-bore diesels

Mining/rail (SAE3 mount)

 

Step 3: Model-Specific Prestolite Fit Guide

Cummins Engines

1.4BT3.9 / 6BT5.9: 24V 6kW (M93R series) or 7.5kW (M105R3010SE) | 10–12T | SAE3 mount | OEM cross: C4944901, 3926932

2.ISB6.7: 24V 7.5kW (M105R3510SE) | 10T CW | Wet clutch | Direct replacement for 4996709

3.ISC/ISL: 24V 7.5kW (M105 series) | 11–12T | SAE3 | Cat C7/C9 compatible

4.6CT8.3: 24V 7.5kW (M105R3516SE) | 12T | OEM cross: 5290002

Caterpillar Engines

1.C7 / C9: 24V 7.5kW (M105/MS1-300A) | 11T CW 56mm | 42MT straight-drive | High-forced-induction friendly

2.C11 / C13 / C15: 24V 7.5–11kW (M128/M110) | 12T | SAE3 | PowerPro 7.5/Extreme seriesPrestolite Electric Incorporated

3.3406E / C16: 24V 11kW+ (S152/M128) | 11–12T | SAE3 | Large-bore torque

 

Step 4: Verify Fitment & Cross-Reference

1.Check OEM Crosses: Use Prestolite’s eCatalog or part portals to confirm your engine’s OEM part number maps to a Prestolite model (e.g., Cummins 4944901 → M93R3010SE)Prestolite Electric.

2.Mechanical Check: Confirm pinion teeth count, flange diameter, bolt spacing, and rotation match your engine’s ring gear and housingPrestolite Electric Incorporated.

3.Electrical Compatibility: Ensure voltage matches your system; 24V systems need 24V starters (12V won’t work, 24V in 12V will burn out).

4.Feature Needs: Select soft-start relay (prevents ring gear wear), OCP (over-crank protection), or wet clutch for severe duty.

 

Step 5: Installation & Usage Best Practices

  • Crank Time: Limit cranking to <5 seconds; rest 2+ minutes between attempts to avoid overheating.
  • Battery Sizing: Match battery capacity to starter power (e.g., 7.5kW needs ≥750 CCA for 24V).
  • Pinion Engagement: Use soft-start equipped models to prevent gear scuffing.
  • Warranty: Genuine Prestolite parts include 12-month warranties; avoid counterfeits for reliability.

 

Quick Selection Checklist

 

Confirm engine model, voltage, and displacement.

01

Pick the Prestolite series (PowerPro 7.5 for most 11L diesels).

02

Verify pinion teeth, mount, and rotation match.

03

Cross-reference OEM part numbers.

04

Check for soft-start/OCP if needed for your application.

05

Need a tailored recommendation? Share your exact engine model, system voltage, and mounting type, and I’ll suggest the precise Prestolite part number.Please contact us.

 

 

How to decode Prestolite MT series starter model numbers?

 

 

Decoding Prestolite MT series starter model numbers (e.g., 28MT, 39MT, M105, M110) requires breaking down the prefix, base model, voltage, power, pinion, and features. Below is a structured guide with examples.

 

1. Core Model Family (MT Series)

The MT designation = Medium/Heavy-Duty Gear Reduction Starter.

28MT: 12/24V, up to 6.5L engines, 2.9–4.0kW

39MT: Heavy-duty, 12/24V, 5.0–7.5kW, SAE #3 mount

M105/M110: PowerPro 5/7 series, 12/24V, 5.0–7.5kW

 

2. Full Model Number Structure (Example: M105R3003SE)

Position

Code

Meaning

1–3

M105

Model family (M105 = PowerPro 5)

4

R

Rotation: R = Clockwise (CW); L = Counterclockwise (CCW)

5–8

3003

Voltage/Power: 3xxx = 24V 7.5kW; 2xxx = 12V 5.0–6.0kW

9–10

SE

Features: SE = Solenoid-Equipped; additional letters =OCP/IMS

 

3. Key Code Definitions

Voltage & Power

12V: 2xxx series (e.g., 2004 = 12V 6.0kW)

24V: 3xxx series (e.g., 3003 = 24V 7.5kW)

Pinion Teeth (T)

9T, 10T, 11T, 12T (e.g., 10T = 10-tooth pinion)

Mounting Type

SAE #1: Standard medium-duty

SAE #3: Heavy-duty, larger flange

Features

SE: Solenoid-Equipped

OCP: Over-Crank Protection

IMS: Integral Magnetic Switch

 

4. Example Decodes

Example 1: 28MT / M28044

28MT: Medium-duty, gear reduction

M28044: 12V, 2.8kW, SAE #1, 10T, CW

Example 2: M105R3003SE

M105: PowerPro 5 series

R: CW rotation

3003: 24V, 7.5kW

SE: Solenoid-equipped

11T: 11-tooth pinion

Example 3: 39MT / 8200446

39MT: Heavy-duty gear reduction

8200446: 12V, SAE #3, 12T, 8/10 pitch, CW

 

5. Quick Reference Table

Model

Voltage

Power (kW)

Mount

Common Teeth

28MT

12/24

2.9–4.0

SAE #1

10T

39MT

12/24

5.0–7.5

SAE #3

12T

M105

12/24

5.0–7.5

SAE #1/#3

11T

M110

12

7.0

SAE #1

11T

 

Can the solenoid on a Prestolite starter be replaced separately?

 

 

Yes—most Prestolite MT‑series starters (28MT, 39MT, M105/M110) have a serviceable, separately replaceable solenoid. It is bolted to the starter housing and can be swapped without replacing the entire motor.

 

Which models allow separate replacement

28MT / M28 (medium‑duty): Solenoid is a separate top‑mounted unit (part numbers like 15‑xxx, SAZ/SAD‑xxxx).

39MT / M110 (heavy‑duty): Same modular design; solenoid bolts on (e.g., 15‑483, SAZ4201ER).

M105 PowerPro 5/7: Solenoid is a replaceable subassembly.

What to check first

Integrated vs. modular: MT‑series use modular solenoids (not molded into the case), so they can be removed.

Part number match: Ensure the new solenoid matches voltage (12V/24V), terminal configuration, and mounting (e.g., SAE #1/#3).

Common Prestolite solenoid part numbers:

12V: 15‑49, 15‑550, SAJ4201

24V: 15‑242, SAS4301

productcate-907-508

Basic replacement steps

  1. Disconnect the battery (negative terminal first).
  2. Remove the small ignition wire and large battery cable from the solenoid.
  3. Remove the 2–3 mounting screws holding the solenoid to the starter housing.
  4. Pull the solenoid away, disengaging the plunger from the drive lever.
  5. Install the new solenoid, ensuring the plunger seats correctly.
  6. Reconnect cables and test.

 

When you can’t replace just the solenoid

  • If the solenoid housing is cracked or fused to the starter case (rare on MT‑series).
  • If internal damage (e.g., worn brushes, bad armature) is found during inspection.

 

Final tip

Always verify the solenoid part number against your starter’s model number (e.g., M105R3003SE) to ensure compatibility.

 

 

 

Our Factory

 

Shanghai E-star Auto Co., Ltd. is located in the bustling Minhang District of Shanghai. The production company covers an area of 24000 square meters and the construction area exceeds 23000 square meters. There are over 150 elite employees gathered here, including a technical team of over 20, who provide a continuous source of motivation for the company's research and manufacturing.

productcate-1-1

 

 

FAQ

 

Q:Which is more reliable: Prestolite Mag Switch starter or traditional solenoid starter?

A:Prestolite IMS (Integral Magnetic Switch) starters are more reliable than traditional external solenoid starters in heavy duty applications—especially for frequent starts, vibration, moisture, and high current cycling.

Q:How does a Prestolite starter perform in extreme cold conditions?

Prestolite starters work excellent in extreme cold.
1.Gear reduction design delivers strong cranking torque for thick cold oil.
2.Sealed IMS/mag switch avoids ice and freezing jams better than traditional solenoids.
3.Low-temperature internal materials ensure reliable starting down to -40°C.
4.Only depends on a good fully charged battery in freezing weather.

Q:What is the recommended mounting bolt torque for a Prestolite starter?

For most Prestolite heavy‑duty starters (SAE 3 flange, M12 bolts):
Recommended torque: 45–50 Nm (33–37 ft‑lbs), dry threads, 8.8/10.9 grade bolts.
Smaller models (M10 bolts):
35–40 Nm (26–30 ft‑lbs).
Key notes:
Use blue Loctite 243 on threads.
Do not over-torque (risk of cracking housing or stripping threads).

Q:What is the warranty period for a Prestolite starter?

A:Typically 1 to 3 years;

Q:What special requirements do Prestolite starters have for high stop/start applications like city buses and refuse trucks?

A:Require heavy-duty durability, high cycle capability, sealed construction, IMS/soft start, and over-crank protection for frequent stop-starts.

Q:Can a Prestolite starter be used on a modified high-displacement engine?

A:Yes, but only high torque models (PowerPro/PowerPro Extreme) matching displacement, compression, and cranking load; requires proper voltage, CCA battery, and wiring。

Q:What is the IP rating of Prestolite starters?

A:IP54 (dust-protected, splash-proof); heavy-duty sealed models meet IP65.

Q:How can I tell if a Prestolite starter is genuine?

A:Genuine Prestolite starters have authentic packaging, clear laser/etched logos, valid part numbers, and a unique label (scannable QR/code) verifiable via official channels. Buy only from authorized dealers and check for precision build quality, no rough edges, and matching OEM specs.

Q: How long does a Petalite starter last?

A: There is no specific period a Petalite starter can last. However, it can last for up to 3000 to 5000 hours of operation. The starter motor's lifetime will depend on various factors, such as usage, maintenance, and environmental conditions.

Q: Can a Petalite starter be repaired?

A: Yes, a Petalite starter can be repaired. However, it is always advisable to avoid repairs and go for replacement. This is because, with repairs, there may be a future occurrence of the problem, which may cause inconvenience.

Q: How can users ensure the long life of the Petalite starters?

A: To ensure the long life of the Petalite starters, users can perform regular maintenance, avoid excessive cranking, ensure proper electrical connections, use the right battery, and operate in a suitable environment.

Q: What does a starter need to work?

A: The starter is a small motor, powered by the battery. It gets the engine of your car running. A starter relay sits between the battery and the starter motor, transmitting power. Without a properly working starter relay and motor, you won't be able to start your vehicle and may need a tow.

Q: How to check if a starter is bad?

A: A bad starter can manifest in several ways. You might hear a clicking sound when you turn the key, a grinding noise, or a slow cranking engine. If the engine turns over but doesn't start, the issue might not be the starter. You can also try tapping on the starter while someone turns the key; if that gets the engine to turn over, it could indicate a bad starter. A bench test, where the starter is removed and tested with direct battery power, provides a more definitive check.

Q: What usually fails on a starter?

A: Problems can include issues with the neutral safety switch, clutch safety switch, starter relay, starter solenoid, and other issues with the system components or connections in the starting circuit.

As one of the leading prestolite starter manufacturers and suppliers in China, we warmly welcome you to wholesale cheap prestolite starter from our factory. All custom made products are with high quality and competitive price.

DENSO 022114150, Yanmar 11928577010, komatsu 6008215441