SCITOO Alternator 13940 for Nissan Maxima Murano I30 I35 - Reliable

In this review the SCITOO Alternator 13940 is evaluated as a direct, high-output replacement for Nissan Maxima, Murano and Infiniti I30/I35 models; it is aimed at owners who want a compact, OEM-fit alternator without paying dealer prices. The single biggest reason to consider this unit is straightforward: it provides a 12V, 110Amp output with internal regulator and fan in a package built to match OE mounting points and pulley class, so it swaps into affected 1995-2007 models with minimal fuss and delivers reliable charging when installed correctly.

Key Features

• Direct fit: Engineered to match OE mounting points and reference numbers so it replaces the original alternator without modification.
• 110Amp output: Provides sufficient charging capacity for standard factory electrical loads on Maxima, Murano and Infiniti I30/I35 engines.
• Internal regulator and fan: The IR regulator and IF internal fan reduce external components and simplify installation while protecting the charging system.
• CW rotation and S6 pulley class: Correct clockwise rotation and S6 grooved pulley ensure compatibility with factory belts and accessory drive geometry.
• Precision castings and tested bearings: CNC machined castings and bearings tested to OE standards aim to deliver consistent performance and fit.
• Clear installation guidance: Basic instructions note battery disconnect, correct belt tension, and torqueing fasteners for a safe, lasting installation.

Who It's For

This alternator is best for owners of Nissan Maxima (2000-2003), Murano (2003-2007) and Infiniti I30/I35 (1998-2004) who need a like-for-like replacement and value a compact, high-output 110Amp unit that follows OEM specifications. Do-it-yourself mechanics and independent shops will appreciate the direct-fit references and familiar service steps.

It is less suitable for vehicles with extensive aftermarket electrical upgrades that demand higher output, or for buyers seeking an alternator with upgraded warranty coverage; some customers report mixed long-term durability, so drivers who require a heavy-duty or lifetime-guaranteed unit should consider other premium options.

Pros & Cons

Pros

• Replaces OE units using supplied reference numbers for confident fitment.
• 110Amp, 12V design meets factory charging requirements for listed models.
• Internal regulator and fan make the unit compact and straightforward to install.
• Good value compared with dealer-priced alternators when it performs as expected.

Cons

• Build quality reports are mixed, with some users noting early failures within months.
• May not be ideal for vehicles with heavy aftermarket electrical loads needing higher output.

Specifications

Voltage	12V
Amperage	110Amp
Rotation	CW (Clockwise)
Regulator	IR (Internal Regulator)
Fan	IF (Internal Fan)
Pulley Grooves	S6 Pulley Class
OE Reference Numbers	13940, AHI0091, 23100-8J100

Our Verdict

The SCITOO Alternator 13940 is a practical, cost-conscious replacement for the specified Nissan and Infiniti models, offering correct fitment and a 110Amp output that matches factory needs. For owners seeking an affordable direct OEM replacement and straightforward installation, it represents good value, though those prioritizing long-term durability or higher output should evaluate heavy-duty alternatives.

Frequently Asked Questions

Will this alternator fit my Maxima or Murano?
Check the listed years and OE reference numbers; the unit is designed for Maxima and Murano model years shown and matches the mounting points for direct replacement.

Is installation difficult for a DIYer?
Basic mechanical skills are sufficient: disconnect the battery negative terminal, set proper belt tension, and tighten fasteners to spec for a secure install.

How reliable is the alternator long term?
Many buyers report good performance and fit, but some have experienced early failures; consider usage patterns and warranty support when deciding.