STANDARD MOTOR PRODUCTS MN-3A8K Intake Air Temperature Wg MN/3A8K Sensor

( Brand: Standard Motor Products ), ( Manufacturer Part Number: MN/3A8K ), ( Compatible Year: 2005 2004 2003 2002 2001 2000 1999 1998 ), ( Compatible Make: Harley Davidson ), ( Compatible Model: Fltri Road Glide ), ( Bundle Description: 1 Pc Genuine Standard Motor Intake Air Temperature Sensor ), ( Type: Intake Air Temperature Sensor ), ( Core Charge: Free No Core Charge ), ( Fitment Type: Direct Replacement )

Review STANDARD MOTOR PRODUCTS Mn/3a8k Intake Air Temperature Sensor Harley Davidson Wg fits 1998–2005

The **Standard Motor MN/3A8K Intake Air Temperature Sensor** is a precision-engineered component designed specifically for Harley-Davidson motorcycles built between 1998 and 2005, particularly those equipped with the **WG (Wide Glide)** platform. This high-quality sensor plays a critical role in the engine s performance and emissions control systems by accurately measuring the temperature of the air entering the intake manifold. Crafted from durable materials, including a robust metal housing and a corrosion-resistant thermistor element, this sensor ensures reliable operation even under the demanding conditions of high-performance riding. Its precise calibration allows the motorcycle s Engine Control Module (ECM) to optimize fuel delivery, ignition timing, and air-fuel ratios, resulting in smoother throttle response, improved fuel efficiency, and reduced emissions. The sensor features a threaded connection compatible with the Harley-Davidson WG s intake system, ensuring a secure and leak-free installation. Whether used for routine maintenance, replacement after failure, or as part of a performance upgrade, this sensor maintains the integrity of the bike s electronic management system while providing long-lasting durability. Ideal for both enthusiasts and professional mechanics, the MN/3A8K Intake Air Temperature Sensor is a straightforward yet essential upgrade for preserving the performance and reliability of your Harley-Davidson.

**Pros and Cons of Buying a Standard Motor MN/3A8K Intake Air Temperature Sensor for 1998 2005 Harley-Davidson WG**

1. **Direct Compatibility** The MN/3A8K sensor is designed specifically for Harley-Davidson engines in the WG series (1998 2005), ensuring a proper fit without modifications. This reduces the risk of installation errors or compatibility issues.

2. **OEM Quality** As a genuine or high-quality aftermarket replacement, it maintains the same performance standards as the original equipment manufacturer (OEM) sensor. This means reliable readings for the engine s fuel injection system, helping optimize fuel delivery and engine efficiency.

3. **Prevents Engine Issues** A faulty intake air temperature (IAT) sensor can lead to poor throttle response, rough idling, or even engine stalling. Replacing it with a known-good sensor prevents these problems and extends the lifespan of related components like the fuel injectors and catalytic converter.

4. **Easy Installation** The sensor is a straightforward plug-and-play replacement. It typically requires only basic tools (socket wrench, electrical connectors) and minimal time to swap out the old sensor. No wiring harness modifications are usually needed.

5. **Cost-Effective Solution** Compared to more complex engine repairs (e.g., fuel system overhauls or transmission issues caused by sensor malfunctions), replacing the IAT sensor is a relatively inexpensive fix. It can save hundreds or thousands in long-term maintenance costs.

6. **Improved Drivability** A functioning IAT sensor ensures the engine receives the correct air-to-fuel ratio, leading to smoother acceleration, better throttle response, and reduced fuel consumption. This is particularly noticeable in cold starts or varying temperature conditions.

7. **Warranty Coverage** If purchasing from a reputable dealer or brand, the sensor may come with a warranty, providing peace of mind against premature failure. Some aftermarket brands offer warranties comparable to OEM parts.

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1. **Limited Availability** While the MN/3A8K sensor is common, sourcing it may require checking multiple online retailers, Harley-Davidson dealerships, or specialty motorcycle parts stores. Availability can sometimes be inconsistent, especially for older model years.

2. **Potential Counterfeit Parts** Buying from untrusted sellers (e.g., unverified eBay listings or unknown online marketplaces) risks receiving counterfeit or low-quality sensors. These may fail prematurely or provide inaccurate readings, negating the benefits of replacement.

3. **Mismatched Specifications** While the MN/3A8K is correct for WG models, there are slight variations in sensor types (e.g., MN/3A8K vs. MN/3A8J) depending on the exact engine configuration (e.g., Evolution or Twin Cam). Double-checking the sensor s compatibility with your specific model (e.g., 1998 2000 vs. 2001 2005) is critical to avoid mismatches.

4. **Diagnostic Confusion** If the sensor was failing intermittently, the issue might persist if the underlying cause (e.g., wiring damage, vacuum leaks, or a failing PCM) isn t addressed. A new sensor alone won t fix electrical or system-wide problems.

5. **Labor Costs (If Not DIY)** While installation is simple, if you choose to have a mechanic replace it, labor costs may apply. For some riders, this adds to the overall expense, though it s often minimal for a sensor replacement.

6. **Sensor Durability** Even high-quality sensors can wear out over time, especially in harsh conditions (e.g., extreme temperatures, salt exposure, or frequent short trips). The lifespan depends on usage and environmental factors, though the MN/3A8K is generally durable if installed correctly.

7. **Potential for Overlooked Issues** During installation, it s easy to miss secondary problems, such as corroded connectors, damaged wiring, or a failing PCM. Skipping a thorough inspection of the sensor s surrounding components could lead to recurring issues.

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Replacing the intake air temperature sensor on a 1998 2005 Harley-Davidson WG with a **Standard Motor MN/3A8K sensor** is a **highly recommended and cost-effective solution** for restoring proper engine function. The benefits such as improved drivability, fuel efficiency, and prevention of larger engine problems far outweigh the minor drawbacks, provided the correct part is sourced and installed properly.

- Purchasing from a trusted seller (e.g., Harley-Davidson dealerships, reputable online retailers like RockAuto, or specialty motorcycle parts stores).

- Verifying the sensor s exact compatibility with your model year and engine configuration.

- Conducting a basic diagnostic check (e.g., scanning for error codes) before and after replacement to ensure no underlying issues exist.

For most riders, the **MN/3A8K sensor is the best choice** for a reliable, long-term fix. If budget is a concern, prioritize quality over price to avoid premature failure. If mechanical confidence is lacking, consulting a Harley-Davidson technician for installation can add assurance.

Buy the **Standard Motor MN/3A8K intake air temperature sensor** from a trusted source and perform the replacement yourself if comfortable, or have a mechanic install it. This will resolve sensor-related issues, improve engine performance, and prevent more costly repairs down the line. Always cross-reference the sensor s part number with your specific model to ensure a perfect match.

Details:

Standard Motor Intake Air Temperature Sensor for 1998 - 2005 Harley Davidson wg: Status: In Stock.

part #: mn3a8k price

• $83.16

specifications intakefuelmotorcycle:

• for makes: Harley, Davidson
• for years: 1998-2005
• brand: Standard Motor Products
• mpn: Mn/3a8k
• compatible year: 2005 2004 2003 2002 2001 2000 1999 1998
• compatible make: Harley Davidson
• compatible model: Fltri Road Glide
• bundle description: 1 Pc Genuine Standard Motor Intake Air Temperature Sensor
• type: Intake Air Temperature Sensor
• core charge: Free No Core Charge
• fitment type: Direct Replacement

offer intakefuelmotorcycle:

• sold: 0
• started: February 11, 2026
• quantity: 1
• options: Ship-to-home
• availability: In Stock

seller intakefuelmotorcycle:

• rating: 98.7%
• city: Multiple warehouses
• # reviews: 17343

shipping intakefuelmotorcycle:

• cost: $0.00
• transit: 2-6 Days
• type: Fixed
• service: Standard
• class: Standard

returns intakefuelmotorcycle:

• time: 30 Days
• policy: Returns Accepted
• paid by: Seller

general intakefuelmotorcycle:

• condition: New
• Motorcycle Scooter Parts Accessories > Air Intake Fuel Delivery > Other Air Intake Fuel Delivery

payments intakefuelmotorcycle:

• credit card: Discover
• other
• wallet: Apple-pay

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