
LNF2403AC Comparison
| photo | price | summary | rating |
|---|---|---|---|
![]() | $48.71 | Condition is Used, 2000-2002 JAGUAR XJ8 XJR XK8 GENUINE TRANSMISSION CONTROL UNIT TCM OEM LNF2403AC, FREE SHIPPING | 99.6% |
![]() | $50.00 | Condition is Used, 98-03 Jaguar XJR X308 Supercharged TCU TCM Transmission Control Lnf2403ac, FREE SHIPPING | 99.8% |
![]() | $44.95 | Condition is Used, 00-02 Jaguar XJ8 XJR XK8 XKR Transmission Control Module Siemens LNF2403AC, shipping cost = $8.13 | 99.3% |
![]() | $54.99 | Condition is Used, 00-02 Jaguar XJR Supercharged v8 Transmission Control Module OEM LNF2403AC, shipping cost = $10.00 | 100.0% |
![]() | $67.49 | Condition is Used, 00-02 Jaguar XJ8 XJR XK8 XKR Transmission Control Module Siemens LNF2403AC, FREE SHIPPING | ![]() |
![]() | $60.00 | Condition is Used, 00 JAGUAR XJ8 Transmission MODULE LNF2403AC, shipping cost = $15.00 | ![]() |
![]() | $69.50 | Condition is Used, 1998-2001 Jaguar XJR TCU Transmission Control Unit ECU OEM, shipping cost = $9.65 | 100.0% |
![]() | $84.99 | Condition is Used, Jaguar 00-03 XJR 00-02 XKR SUPERCHARGED TRANSMISSION MODULE LNF2403AC, FREE SHIPPING | 100.0% |
![]() | $87.99 | Condition is Used, 00-02 Jaguar XK8 Automatic Auto Transmission Control Module TCM TCU Factory OEM, FREE SHIPPING | 99.8% |
![]() | $79.99 | Condition is Used, 1998-2003 Jaguar XJR XJ8 TRANSMISSION CONTROL MODULE A 020 545 32 32, shipping cost = $9.87 | 99.4% |
![]() | $89.99 | Condition is Used, 1998-2003 Jaguar XJR XJ8 TRANSMISSION CONTROL MODULE A 020 545 32 32 (OEM) B01, FREE SHIPPING | 99.8% |
![]() | $95.00 | Top Pick! Condition is Used, 2000-03 Jaguar XJR Supercharged TCU TCM Transmission Control Module OEM USED E3, FREE SHIPPING | ![]() |
![]() | $95.50 | Top Pick! Condition is Used, 98-03 Jaguar XJR X308 Supercharged TCU TCM Transmission Control Module OEM, shipping cost = $9.95 | 99.4% |
![]() | $95.50 | Top Pick! Condition is Used, 98-03 Jaguar XJR X308 Supercharged TCU TCM Transmission Control Module OEM, shipping cost = $9.95 | 99.4% |
![]() | $154.50 | Condition is Used, 98-03 Jaguar XJR X308 Supercharged TCU TCM Transmission Control Module OEM, shipping cost = $8.95 | 99.4% |
![]() | $132.95 | Top Pick! Condition is Used, 1998-1999-2000-2001-02-2003 JAGUAR XJR TRANSMISSION MODULE LNF2403AC A0205453232, shipping cost = $32.98 | 98.6% |
![]() | $132.95 | Top Pick! Condition is Used, 1998-1999-2000-2001-2002-2003 JAGUAR XJR TRANSMISSION MODULE LNF2403AC, shipping cost = $32.98 | 98.6% |

The Jaguar LNF2403AC Transmission Control Unit (TCM) is a crucial component in the powertrain system of select Jaguar models from the years 2000 to 2002, including the XJ8, XJR, and XK8. This TCM is responsible for managing and controlling the hydraulic functions of the vehicle's automatic transmission, ensuring smooth and efficient gear changes.
The LNF2403AC TCM is a sophisticated electronic device that communicates with the engine control unit (ECU) and other vehicle systems to monitor and adjust transmission function based on engine speed, vehicle speed, and other driving conditions. It features multiple inputs and outputs for various sensors and actuators, providing precise control over the transmission's operation.
This TCM is designed with a robust and reliable architecture, capable of handling the demanding requirements of high-performance vehicles. It is constructed using advanced automotive-grade electronics and is sealed against moisture and other environmental contaminants to ensure long-term durability.
Key features of the Jaguar LNF2403AC TCM include:* Advanced transmission control algorithms for smooth and efficient gear changes
* Integrated diagnostics and self-monitoring capabilities for fault detection and troubleshooting
* Compatibility with a wide range of sensors and actuators for complete transmission control
* Sealed design for protection against moisture and other environmental contaminants
* Plug-and-play connectivity for easy installation and integration with the vehicle's wiring harness
Whether you're restoring a classic Jaguar or maintaining the performance of a modern XJ, the LNF2403AC TCM is an essential upgrade for any vehicle owner seeking optimal transmission performance and reliability. With its advanced features and robust design, this TCM is the perfect solution for ensuring your Jaguar continues to deliver the smooth, refined driving experience that you've come to expect from this legendary brand.
The Jaguar LNF2403AC Transmission Control Unit (TCM) is an essential component of Jaguar XJ8, XJR, and XK8 models from the years 2000 to 2002. This part controls the functions of the vehicle's automatic transmission, enabling smooth gear shifts and optimal performance. Here are some pros and cons to consider when deciding to buy a Jaguar LNF2403AC TCM.
Pros:1. Improved Transmission Performance: A new TCM can lead to better transmission response and smoother gear shifts, making your Jaguar drive more pleasantly.
2. Reduced Check Engine Light: A faulty TCM can cause the check engine light to illuminate. By replacing the TCM, the check engine light should go off, providing peace of mind.
3. Enhanced Fuel Efficiency: A properly functioning TCM can help optimize fuel consumption by ensuring the transmission operates efficiently, potentially saving you money on gas.
4. Longer Transmission Lifespan: By maintaining the transmission with a new TCM, you can prolong the overall lifespan of the transmission system.
Cons:1. Cost: A new Jaguar LNF2403AC TCM can be quite expensive, especially when compared to other aftermarket parts.
2. Installation Complexity: Installing a TCM can be a complex process, requiring specialized tools and technical expertise. It's recommended to have a professional mechanic handle the installation.
3. OEM vs Aftermarket: Deciding whether to buy an original equipment manufacturer (OEM) or aftermarket TCM can be a challenge. While OEM components offer the best fit and factory warranty, aftermarket options may be more cost-effective.
In conclusion, a new Jaguar LNF2403AC TCM can offer numerous benefits, such as improved transmission performance, reduced check engine light, enhanced fuel efficiency, and prolonged transmission lifespan. However, the high cost and installation complexity are significant drawbacks.
If you're comfortable with the cost and have the technical expertise or access to a professional mechanic, a new OEM Jaguar LNF2403AC TCM is the recommended choice for maintaining optimal transmission performance and ensuring the longevity of your Jaguar XJ8, XJR, or XK8. If budget is a concern, consider exploring reputable aftermarket options as an alternative.
Details:
Any tampering will void the return. Part number to match: LNF2403AC. All the parts are tested either before or after removal from vehicle. Car: 2000 -2002 Jaguar XJ8 xjr xk8.
There may be light scuffs, scratches or other imperfections as a result of this being used part. Car listed is the original car that part came from but it possible could fit other years and model's. Bigger packages may be shipped via FedEx or ups. Please verify compatibility before buying.
specifications perfoelectric:
- for models: Xj8
- for years: 2000–2002
- brand: Jaguar
- mpn: Lnf2403ac
- part type: Control Transmission Unit
- ipn: 591-57221c
- performance part: Yes
shipping perfoelectric:
- transit: 3-8 days
- class: expedited
- carrier: usps
- type: fixed
- service: usps priority mail
offer perfoelectric:
- best offers: true
- prices: $44.95–$154.50
- item condition: Used
- options: ship-to-home
- availability: in stock
- started: december 2, 2025
- in stock #: 5
- sold #: 14
returns perfoelectric:
- policy: no returns
general perfoelectric:
- category: Auto Parts > Electrical Components
seller perfoelectric:
- city: fort lee, new jersey
- rating: 99.5%
- # reviews: 1390
payments perfoelectric:
- credit card: diners-club
- other
- wallet: paypal
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