SCITOO Starter Motor 6674N L3H5-18-400 - Reliable Replacement for Ford
SCITOO Starter Motor 6674N L3H5-18-400 - Reliable Replacement for Ford
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In this review the SCITOO Starter Motor 6674N is evaluated as a practical replacement for mid-2000s Ford and Mazda models; it is aimed at DIY mechanics and independent shops needing a straightforward, budget-friendly starter. The single biggest reason to buy is its direct fitment for specific Escape, Focus, Transit Connect, Tribute and Mariner years and its clear specification of 0.8kW/12 Volt with an 8-tooth pinion, which makes it a simple swap for many common 2.0L-2.5L engines.
Key Features
- Fitment Coverage: It supports the listed model years for Ford Escape, Focus, Transit Connect and Mazda Tribute, offering a ready replacement without major modifications.
- Clear Reference Numbers: Matches reference numbers such as 6674N and L3H5-18-400 so installers can confirm compatibility against the original unit.
- Compact Power: The 0.8kW/12 Volt rating delivers sufficient cranking torque for 2.0L to 2.5L engines while remaining compact and lightweight for easier handling during installation.
- 8-Tooth Pinion: The CW rotation and 8-tooth pinion match the ring gear interface on compatible vehicles, reducing the chance of gear mismatch when the fitment is correct.
- Boxed Packaging: Ships as a single starter motor in a box, which helps protect the unit in transit and simplifies inventory handling for shops and parts rooms.
- Quality Control: Built with premium components and subject to factory quality checks, which aims to ensure consistent performance out of the box.
Who It's For
This starter is best for owners of eligible Ford Escape (2005-2010), Ford Focus (2003-2009), Ford Transit Connect (2010-2012) and Mazda Tribute/Mercury Mariner (2005-2009) who need a direct replacement and want a cost-effective alternative to dealer parts. Independent mechanics and hobbyist DIYers who can verify the reference numbers and confirm the 0.8kW/12 Volt, CW, 8-tooth specification will find it straightforward to install.
Those who should look elsewhere include owners of vehicles not listed in the fitment or people with highly modified engines where a higher-output starter is required. Also check fit carefully for unusual trims or regional variants, since a handful of customers reported bolt location or compatibility mismatches on engines not covered by the listed fitment.
Pros & Cons
Pros
- Good value: several users noted the starter provides reliable starting at a lower cost than OEM alternatives.
- Ease of installation: customers commonly report straightforward mounting and electrical connections when the reference numbers match.
- Strong cranking: quick crank speed is frequently mentioned, making cold starts and repeated starts easier.
Cons
- Mixed lifespan reports: some users experienced service life under a year, so longevity can vary by vehicle and usage.
- Fitment anomalies: a few buyers found bolt location or compatibility issues on models outside the listed reference numbers, so verification is important.
Specifications
| Brand | SCITOO |
| Reference Numbers | 6674N, L3H5-18-400, ZZC1-18-400, 3S4T-AB/AC |
| Voltage | 12 Volt |
| Power | 0.8 kW |
| Rotation / Pinion | CW, 8-Tooth Pinion |
| Included | 1x Starter Motor (Boxed) |
Our Verdict
The SCITOO 6674N starter is a practical, cost-conscious replacement for owners and shops working on compatible Ford and Mazda models; it matches common reference numbers and delivers solid cranking performance when installed correctly. Verify fitment against the vehicle and the listed references before purchase, and expect good immediate function though long-term lifespan can vary by use and vehicle history.
Frequently Asked Questions
Will this starter fit my vehicle?
Check the listed model years and reference numbers (6674N, L3H5-18-400, etc.) against your original starter; confirm engine displacement and pinion specification before ordering.
What is included in the package?
The product ships as one starter motor in a box with the specified 0.8kW/12 Volt, CW, 8-tooth pinion configuration.
How long will this starter last?
Lifespan varies; many users report immediate reliable starts but some have experienced shorter service life, so expect typical aftermarket variability and inspect electrical/charging systems to prolong service.
Editor's Take
The SCITOO 6674N starter is a cost-effective direct replacement for specified Ford and Mazda models, offering reliable cranking and easy installation when reference numbers and fitment are confirmed, though lifespan can vary.

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