Bosch 986017060 Starter

BOSCH 986017060 Starter

The BOSCH 986017060 Starter is a high‑performance electric starter motor designed for 12 V automotive applications. It delivers an output of 1.1 kW (≈1,480 hp), making it suitable for a wide range of passenger cars and light commercial vehicles. The unit features a compact 227 mm length and is engineered to rotate clockwise, ensuring compatibility with standard engine configurations.

Key Technical Specifications

• Output Power: 1.1 kW (1,480 hp)
• Operating Voltage: 12 V DC
• Rotation Direction: Clockwise (right‑handed)
• Length: 227 mm
• Thread Size: 3 mm diameter, 10 teeth
• Mounting Holes: 3 standard holes for secure attachment
• Weight: Approximately 2.5 kg (varies slightly by variant)
• Operating Temperature Range: –40 °C to +120 °C
• Electrical Characteristics: Current draw up to 300 A during cranking, with a peak surge of 500 A for brief periods.

Design Features and Construction

The starter motor incorporates Bosch’s proprietary high‑density copper windings that provide excellent thermal management and reduce electrical losses. The stator core is made from a low‑loss silicon steel, which enhances magnetic flux efficiency and contributes to the unit’s compact size.

A key feature of this model is its self‑supporting shaft, meaning it can be mounted without additional bearings or support brackets. This simplifies installation in tight engine bay spaces and reduces assembly time for automotive technicians.

Compatibility Overview

The 986017060 starter is engineered to fit a broad spectrum of vehicles, particularly those from the following manufacturers:

• Ford – models such as Fiesta, Focus, C‑Max, B‑Max, EcoSport, and Mondeo.
• Mazda – including Mazda 2 (DY), Mazda 121, and other compact cars.
• Volvo – V50, S40, C30, and similar models.
• Pininfarina – certain custom or limited‑edition vehicles that share the same engine architecture.

Engineers typically verify compatibility by matching the starter’s shaft diameter, mounting hole pattern, and torque specifications to the vehicle’s crankshaft assembly. The 986017060’s standardized dimensions make it a drop‑in replacement for many OEM starters across these brands.

Installation Guidelines

1. Disconnect the battery: Ensure all electrical connections are safely isolated before beginning work.
2. Remove the old starter: Detach the mounting bolts and carefully lift the unit out of the engine bay. Note any wiring harnesses or connectors for re‑attachment.
3. Align the shaft: Position the new starter so that its shaft aligns with the crankshaft pulley. The clockwise rotation ensures proper engagement.
4. Screw in mounting bolts: Tighten to the manufacturer’s torque specification (typically 30–35 Nm). Use a calibrated torque wrench for accuracy.
5. Reconnect wiring: Attach the high‑current harness, ensuring secure contacts and correct polarity.
6. Test operation: Reconnect the battery and attempt to start the engine. The starter should engage smoothly without excessive noise or vibration.

Performance Characteristics

The 986017060 delivers rapid cranking speeds, enabling engines to reach operating RPMs within a fraction of a second. Its robust construction allows it to withstand repeated start cycles in both mild and harsh environmental conditions. The motor’s high current capacity ensures reliable performance even under cold weather or high‑altitude scenarios where air density is lower.

Maintenance and Longevity

Because the starter operates at high currents, it generates significant heat during use. Regular inspection of the mounting bolts for tightness and checking the wiring harness for corrosion can extend the unit’s service life. The internal windings are sealed within a protective housing, reducing exposure to oil or coolant leaks.

Applications Beyond Passenger Cars

While primarily marketed for passenger vehicles, the 986017060 starter is also suitable for light commercial and specialty applications where a compact, high‑power starter is required. Its self‑supporting design and standardized mounting make it an attractive choice for custom engine builds or aftermarket performance upgrades.

Summary

The BOSCH 986017060 Starter combines high power output, compact dimensions, and a robust construction that meets the demands of modern automotive engines. Its compatibility with a wide range of Ford, Mazda, Volvo, and Pininfarina models makes it a versatile replacement or upgrade option for technicians and vehicle owners alike.