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Alternator. Porsche 95B.1 Macan >>2014 ❭ PAC903018
- Porsche 95B.1 Macan Petrol 2.0L (237Bhp) 2014-18
- Porsche 95B.1 Macan S Petrol 3.0L V6 (340Bhp) 2014-18
- Porsche 95B.1 Macan S Diesel 3.0L V6 (258Bhp) 2014-18
- Porsche 95B.1 Macan GTS Petrol 3.0L V6 (360Bhp) 2014-18
- Porsche 95B.1 Macan Turbo 3.6L V6 (400Bhp) 2014-18
Restore reliable charging performance and maintain a stable electrical supply with this Valeo Alternator. Valeo is a recognised Original Equipment supplier of automotive electrical systems, producing high-quality charging components designed for accurate fit, dependable output, and long service life. The alternator generates electrical power while the engine is running, supplying the vehicle's electrical systems while keeping the battery correctly charged.
Fits:
- Porsche 95B.1 Macan Petrol 2.0L (237Bhp) 2014
- Porsche 95B.1 Macan S Petrol 3.0L V6 (340Bhp) 2014
- Porsche 95B.1 Macan S Diesel 3.0L V6 (258Bhp) 2014
- Porsche 95B.1 Macan GTS Petrol 3.0L V6 (360Bhp) 2014
- Porsche 95B.1 Macan Turbo 3.6L V6 (400Bhp) 2014
Diagram Ref No 6
Driven by the engine through the auxiliary belt system, the alternator converts mechanical energy into electrical energy. It supplies power to essential systems including engine management, lighting, climate control, infotainment, safety equipment, and other electrical consumers. Internal components such as the rotor, stator, bearings, rectifier, and voltage regulation system work together to provide a stable electrical output across varying engine speeds and electrical loads. This Valeo alternator is an ideal replacement for a weak, noisy, intermittent, or failed original unit.
What This Product Does:
- Generates electrical power while the engine is running.
- Recharges and maintains the vehicle battery.
- Supplies power to engine management and other essential electrical systems.
- Supports lighting, climate control, infotainment, and vehicle electronics.
- Helps maintain stable charging-system voltage.
- Provides electrical output according to vehicle demand.
- Replaces a weak, noisy, intermittent, or failed alternator.
- Provides an OE-quality fit for straightforward replacement.
Symptoms Of Wear Or Failure:
- Battery or charging-system warning light illuminated.
- Battery repeatedly becoming discharged or going flat.
- Difficulty starting or slow engine cranking.
- Headlights or interior lighting becoming dim or flickering.
- Electrical equipment operating intermittently or incorrectly.
- Low, unstable, or excessive charging voltage.
- Whining, grinding, or rumbling noises from the alternator area.
- Burning smell or signs of overheating.
- Vehicle stalling as battery charge becomes depleted.
- Charging-system diagnostic fault codes or warning messages.
Why Replacement Matters:
- The alternator is a critical component of the vehicle's charging and electrical system. While the engine is running, it supplies the electrical energy required by the vehicle and replenishes the battery after starting. A worn or failing alternator may produce insufficient or unstable electrical output, gradually discharging the battery and affecting the operation of sensitive vehicle electronics.
- As alternator performance deteriorates, the vehicle may develop starting problems, warning lights, flickering illumination, electrical malfunctions, or intermittent system faults. If the alternator stops charging completely, the vehicle will operate only until the remaining battery energy is exhausted, potentially resulting in the engine stalling and being unable to restart.
- Mechanical alternator faults, including worn bearings or pulley-related problems, can also create excessive noise and place additional strain on the auxiliary drive system if left unresolved.
- Replacing a worn or failed unit with this Valeo Alternator PAC903018/1 restores dependable battery charging, maintains a stable electrical supply, and supports reliable operation of the vehicle's electrical systems. Manufactured to Valeo's high-quality Original Equipment standards, this alternator provides accurate fit, dependable performance, and long-term durability for Porsche maintenance and repair.
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
PAC903018
The product you are viewing cross references to these numbers
- Porsche Boxster 986 2.7L 1999-02
- Porsche Boxster S 986 3.2L 1999-02
- Porsche 996 C2 3.4L 1997-08/01
- Porsche 996 C4 3.4L 1997-08/01
- Porsche 996 C2 3.6L 09/01-2005
- Porsche 996 C4 3.6L 09/01-2005
- Porsche 996 C4S 3.6L 09/01-2005

Reconditioned Alternator Manual cars only
Please note:
Reconditioned Alternators are sold on an exchange basis, A surcharge of £100.00 will be held and then refunded when the old one is returned.
Fits:
Porsche 986 Boxster 2000-2002 Manual
Porsche 996 2000>> Manual
Reconditioned Alternators are sold on an exchange basis, A surcharge of £100.00 will be held and then refunded when the old one is returned.
- PLEASE NOTE:
- The surcharge for this reconditioned part will be refunded when the exchange unit is received and approved by us and the relevant manufacturer.
- Please note, surcharge refunds often take an average of 6 to 8 weeks to be approved by the manufacturer.
- Acceptance of the exchange part is at the manufacturer's discretion, based on the part being fit for reconditioning.
- All surcharges and exchanges are subject to our terms and conditions.
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
99660301206
The product you are viewing cross references to these numbers
PLEASE NOTE:
- The surcharge for this reconditioned part will be refunded when the exchange unit is received and approved by us and the relevant manufacturer.
- Please note, surcharge refunds often take an average of 6 to 8 weeks to be approved by the manufacturer.
- Acceptance of the exchange part is at the manufacturer's discretion, based on the part being fit for reconditioning.
- All surcharges and exchanges are subject to our terms and conditions.
- Porsche Boxster 986 2.5L 1997-99
- Porsche Boxster 986 2.7L 1999-02
- Porsche Boxster S 986 3.2L 1999-02
- Porsche 996 C2 3.4L 1997-08/01
- Porsche 996 C4 3.4L 1997-08/01
- Porsche 996 C2 3.6L 09/01-2005
- Porsche 996 C4 3.6L 09/01-2005
- Porsche 996 C4S 3.6L 09/01-2005

Reconditioned Alternators are sold on an exchange basis, A surcharge of £100.00 will be held and then refunded when the old one is returned.
Fits:
Porsche 986 Boxster 1997-1999 Manual
Porsche 986 Boxster 1997-2002 Tiptronic
Porsche 996 1998-1999 Manual
Porsche 996 1998-2005 Tiptronic
Reconditioned Alternators are sold on an exchange basis, A surcharge of £100.00 will be held and then refunded when the old one is returned.
PLEASE NOTE:
- The surcharge for this reconditioned part will be refunded when the exchange unit is received and approved by us and the relevant manufacturer.
- Please note, surcharge refunds often take an average of 6 to 8 weeks to be approved by the manufacturer.
- Acceptance of the exchange part is at the manufacturer's discretion, based on the part being fit for reconditioning.
- All surcharges and exchanges are subject to our terms and conditions.
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
99660301205
The product you are viewing cross references to these numbers
PLEASE NOTE:
- The surcharge for this reconditioned part will be refunded when the exchange unit is received and approved by us and the relevant manufacturer.
- Please note, surcharge refunds often take an average of 6 to 8 weeks to be approved by the manufacturer.
- Acceptance of the exchange part is at the manufacturer's discretion, based on the part being fit for reconditioning.
- All surcharges and exchanges are subject to our terms and conditions.
- Porsche Boxster 986 2.7L 2003-04
- Porsche Boxster S 986 3.2L 2003-04
- Porsche Boxster 987 2.7L 2005-08/08
- Porsche Boxster 987 S 3.2/3.4L 2005-08/08
- Porsche 996 TURBO 2000-05
- Porsche 997 MK1 Carrera 2 3.6L 2005-08
- Porsche 997 MK1 Carrera 2S 3.8L 2005-08
- Porsche 997 MK1 Carrera 4 3.6L 2005-08
- Porsche 997 MK1 Carrera 4S 3.8L 2005-08
- Porsche Cayman 2.7L 987C 2006-08
- Porsche Cayman S 3.4L 987C 2005-08
Fits:
Porsche 986 Boxster 2003-2004
Porsche 987 Boxster 2005-2006
Porsche 987C Cayman 2005-2006
Porsche 996TT Turbo 2000-2005
Porsche 997 2005-2006
This alternator is fitted with freewheel pulley.
Plug type

Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
99760301212
The product you are viewing cross references to these numbers
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