Alternator - Denso - DAN1133

This Denso Alternator (MPN: DAN1133) is a high-quality replacement part designed for specific BMW ...

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eBayAlternator fits BMW 335 3.0 12 to 13 N55B30A Denso 12317626153 12317626155 New
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My Motor WorldDenso Dan1133 Alternator
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Product Information

Full details

This Denso Alternator (MPN: DAN1133) is a high-quality replacement part for specific BMW 1 Series (E88) 135i Convertible models. It offers a robust 170A charge current and meets or exceeds Original Equipment (OE) standards, ensuring reliable vehicle electrical system performance. The primary caveat is its specific vehicle compatibility; ensure your model and year match before purchase.

All features

Model Part NumberDAN1133
BrandDenso

Extended Product Information

FAQs

What vehicles is the Denso DAN1133 alternator compatible with?

This alternator is specifically designed for BMW 1 Series (E88) 135i Convertible models from March 2012 to October 2013. Always confirm compatibility with your vehicle's specifications.

What does the 170A charge current mean?

The 170A charge current indicates the maximum amperage the alternator can supply to charge the battery and power the vehicle's electrical systems. 170A is a high output suitable for demanding applications.

What is a freewheel belt pulley?

A freewheel belt pulley allows the alternator rotor to freewheel or spin down independently of the engine's crankshaft. This reduces noise, vibration, and wear on the belt and tensioner.

Does this alternator meet original equipment standards?

Yes, the Denso DAN1133 meets or exceeds original equipment standards, ensuring it performs comparably to the part it replaces.

Can I install this alternator myself?

While replacement is possible, alternator installation requires specific tools and knowledge of automotive electrical systems. It is highly recommended to have this part installed by a qualified professional technician.

What are the cross-reference part numbers for this alternator?

Cross-references include DENSO 021080-1090, 104210-6520, 104210-6521, 104210-6522 and BMW 12317626153, 12317626155, 7626153, 7626155.

Troubleshooting

Alternator not charging the battery.

Check drive belt tension and condition. Verify electrical connections to the alternator are secure. Test voltage output; if low, the alternator may need replacement. Consult a technician.

Whining or squealing noise from the alternator.

This could indicate a worn bearing or an issue with the freewheel pulley. Inspect for noise originating directly from the alternator unit. Professional diagnosis is recommended.

Battery warning light illuminated on the dashboard.

This is a common indicator of an alternator issue. Check connections and belt first. If the problem persists, the alternator may have failed and requires replacement.

Pros and Cons

Pros

  • Ensures reliable electrical system performance.
  • Meets or exceeds original equipment standards.
  • Designed for a perfect fit in compatible BMW models.
  • High charge current capacity (170A).
  • Features a freewheel belt pulley for enhanced durability.

Cons

  • Specific vehicle fitment; not a universal part.
  • Requires professional installation for optimal performance.
  • Potential for component failure if not correctly installed or maintained.

Setup, Compatibility & Care

Compatibility: This Denso Alternator (MPN: DAN1133) is specifically designed for BMW 1 Series (E88) 135i Convertible models manufactured between March 2012 and October 2013. Always verify your vehicle's VIN and original part number against the cross-reference list (DENSO 021080-1090, 104210-6520, 104210-6521, 104210-6522; BMW 12317626153, 12317626155, 7626153, 7626155) to ensure a proper fit.

Setup: Installation of an alternator should be performed by a qualified automotive technician. This involves disconnecting the battery, removing the old alternator, installing the new unit, reconnecting the drive belt, and reconnecting the battery. Proper belt tension is crucial.

Care: Alternators are generally maintenance-free. However, regular checks of the drive belt for wear and proper tension, as well as ensuring the alternator is free from excessive dirt and debris, can help prolong its life. Avoid exposing the alternator to excessive moisture or harsh cleaning chemicals.

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