
0045451032 Comparison
| photo | price | summary | rating |
|---|---|---|---|
![]() | $90.00 | Condition is Used, 1986-1991 MERCEDES W126 420SEL IDLE SPEED CONTROL UNIT MODULE RELAY 0045451032 , FREE SHIPPING | 100.0% |
![]() | $94.99 | Condition is Used, 1986-1991 MERCEDES W126 420SEL IDLE SPEED CONTROL UNIT MODULE RELAY 0045451032, FREE SHIPPING | 99.8% |
![]() | $98.75 | Condition is Used, 536 MERCEDES W126 420SEL 560SEL IDLE SPEED CONTROL UNIT MODULE RELAY 0045451032, FREE SHIPPING | 99.4% |
![]() | $99.00 | Condition is Used, Vintage Mercedes Idle Speed Control Unit 8 Zlyl, 0045451032, FREE SHIPPING | 99.6% |
![]() | $99.95 | Condition is Used, 86-91 OEM MERCEDES W126 420SEL Idle Speed Control Unit Module Relay w/ Pigtail, FREE SHIPPING | 100.0% |
![]() | $111.51 | Condition is Used, Mercedes W126 420SEL 560SL V8 Idle Speed Control Relay Module OEM 0045451032, shipping cost = $5.80 | 99.6% |
![]() | $120.00 | Condition is Used, 1986-1991 MERCEDES W126 420SEL IDLE SPEED CONTROL UNIT MODULE RELAY 0045451032, FREE SHIPPING | 100.0% |
![]() | $129.95 | Condition is Used, Mercedes W126 420SEL 560SL V8 Idle Speed Control Relay Module OEM 0045451032, shipping cost = $7.00 | 98.6% |
![]() | $140.00 | Top Pick! Condition is Used, 1986 MERCEDES R107 560SL IDLE SPEED CONTROL UNIT MODULE RELAY 0045451032, FREE SHIPPING | 99.2% |
![]() | $136.00 | Condition is Used, Mercedes W126 420SEL 560SL V8 Idle Speed Control Relay Module OEM 0045451032, shipping cost = $12.00 | 100.0% |
![]() | $138.90 | Condition is Used, MERCEDES 420SL 500SL 420SEL IDLE SPEED CONTROL UNIT MODULE RELAY 0045451032 R107, shipping cost = $11.35 | 99.8% |
![]() | $150.00 | Top Pick! Condition is Used, Idle Speed Control Relay 420sel Mercedes Original 0045451032, FREE SHIPPING | 99.2% |
![]() | $150.00 | Top Pick! Condition is Used, Idle Speed Control Relay 420sel Mercedes Original 0045451032, shipping cost = $5.97 | 100.0% |
![]() | $150.00 | Condition is Used, MERCEDES IDLE SPEED CONTROL MODULE UNIT RELAY OEM 0045451032, shipping cost = $8.06 | 100.0% |
![]() | $159.99 | Condition is Used, 536 MERCEDES W126 420SEL 560SEL IDLE SPEED CONTROL UNIT MODULE RELAY 0045451032, FREE SHIPPING | 99.0% |
![]() | $199.00 | Condition is Used, MERCEDES--BENZ R107 560SL W126 , IDLE SPEED CONTROL RELAY , OEM , 0045451032, shipping cost = $12.00 | 100.0% |
| photo | price | summary | rating |
|---|---|---|---|
![]() | $269.00 | Condition is Remanufactured, 0045451032, Mercedes W140 For 420sel, Idle Speed Control Relay Repair service , shipping cost = $12.90 | 99.4% |
![]() | $299.99 | Top Pick! Condition is Remanufactured, W126 420SEL IDLE SPEED CONTROL UNIT MODULE RELAY 0045451032 REMANUFACTURED, FREE SHIPPING | 99.8% |
![]() | $299.99 | Condition is Remanufactured, Genuine Mercedes Idle Speed Control Unit REMANUFACTURED W126 560SEC 560SE 560SEL, FREE SHIPPING | 100.0% |
![]() | $475.00 | Top Pick! Condition is Remanufactured, Genuine Mercedes Idle Speed Control Unit REMANUFACTURED W126 560SEC 560SE 560SEL, FREE SHIPPING | 99.8% |
| photo | price | summary | rating |
|---|---|---|---|
![]() | $346.21 | Condition is New, 86-91 Mercedes W126 420SEL 500SEC R107 Idle Speed Control Relay 0045451032 NEW, FREE SHIPPING | ![]() |
![]() | $350.00 | Condition is New, Mercedes Benz W126 C126 Switch Idle Control A0045451032 Genuine NOS, shipping cost = $80.00 | 100.0% |
![]() | $500.00 | Condition is New, Mercedes Benz A0045451032 Control Idle Switch NOS, shipping cost = $45.00 | 100.0% |
![]() | $550.00 | Condition is New, Mercedes Benz 560SEC 560SEL Idle Speed Control Module Relay A0045451032 Genuine, shipping cost = $10.00 | 100.0% |
| photo | price | summary | rating |
|---|---|---|---|
![]() | $161.31 | Condition is Gebraucht, Relay Mercedes control unit idle controller 0045451032 idle speed control, shipping cost = $58.03 | 99.8% |



The Mercedes-Benz 0045451032 W126 420SEL/560SEL Idle Control Unit Module is an essential component for maintaining optimal engine performance in these iconic luxury vehicles. This idle control unit is specifically designed for the W126 model series, which includes the 420SEL and 560SEL models.
This module plays a critical role in regulating the engine's idle speed, ensuring a smooth and stable operation. It works in conjunction with the vehicle's engine management system, adjusting the throttle position to maintain a consistent engine speed, even when the vehicle is idling or in traffic.
The Mercedes-Benz 0045451032 W126 Idle Control Unit Module is a high-quality replacement part, engineered to meet the exact specifications of the original unit. It is manufactured using advanced materials and state-of-the-art technology to ensure durability and reliability. The module features a robust design, with corrosion-resistant connectors and high-temperature wiring, ensuring it can withstand the harsh conditions that can affect a vehicle's electrical components.
Installing the 0045451032 W126 Idle Control Unit Module is a straightforward process, requiring only basic DIY skills and common tools. The module is easily accessible, and the installation procedure is well-documented in the vehicle's service manual. However, if you prefer, a professional mechanic can also perform the installation for you.
In summary, the Mercedes-Benz 0045451032 W126 420SEL/560SEL Idle Control Unit Module is an essential component for maintaining the performance and reliability of your luxury vehicle. Its advanced design and robust construction ensure it will provide reliable service for many years to come. Whether you choose to install it yourself or have a professional do it, this idle control unit module is a worthwhile investment for any W126 420SEL/560SEL owner.
Pros of buying a Mercedes-Benz W126 420SEL/560SEL Idle Control Unit Module (0045451032):1. OEM part: This is an original equipment manufacturer (OEM) part, which means it is manufactured by or for Mercedes-Benz, ensuring a perfect fit and optimal performance.
2. High-quality materials: OEM parts are typically made with high-quality materials for durability and reliability, reducing the risk of failure in the near future.
3. Improved engine performance: A faulty idle control unit can cause engine misfires, rough idling, and poor fuel efficiency. Replacing the unit can help restore proper engine performance and improve fuel economy.
4. Enhanced safety: A malfunctioning idle control unit can also affect the engine's performance in critical situations, such as during emergency braking or acceleration. Replacing the unit can help ensure optimal engine performance and safety.
Cons of buying a Mercedes-Benz W126 420SEL/560SEL Idle Control Unit Module (0045451032):1. Cost: OEM parts are often more expensive than aftermarket alternatives. However, the high quality and reliability of OEM parts can offset the initial cost in the long run, as they are less likely to require replacement.
2. Availability: OEM parts may not be readily available, especially for older models like the W126. It may take some time to source and receive the part, which can delay the repair process.
Conclusion:While the cost of the Mercedes-Benz W126 420SEL/560SEL Idle Control Unit Module (0045451032) may be higher than aftermarket alternatives, the high-quality materials, improved engine performance, and enhanced safety make it a worthy investment for Mercedes-Benz W126 owners. The potential downtime due to availability issues can be mitigated by planning ahead and ordering the part well in advance.
Recommendation:I recommend purchasing the Mercedes-Benz W126 420SEL/560SEL Idle Control Unit Module (0045451032) as a replacement for a faulty unit. The investment in an OEM part can help ensure optimal engine performance, improved fuel economy, and enhanced safety, ultimately providing a better driving experience for the vehicle owner.
Details:
None of the connectors pins are broken, missing or bent. This will fit any W126 420/560sel from 1986 -1991. This unit was tested before removal and is in great working condition. This a oem Mercedes unit.
Came out of a 1990 Mercedes 420SEL.
specifications perfoelectric:
- for models: W126, 420sel, 560sel
- brand: Mercedes
- mpn: 0045451032
- part type: Control Unit Module
- performance part: Yes
seller perfoelectric:
- rating: 99.5%
- city: phoenix, arizona
- # reviews: 312
shipping perfoelectric:
- carrier: fedex
- transit: 4-8 days
- type: fixed
- service: fedex ground or fedex home delivery
- class: standard
payments perfoelectric:
- wallet: paypal
- credit card: american-express
offer perfoelectric:
- options: ship-to-home
- sold #: 34
- best offers: true
- availability: in stock
- prices: $90.00–$550.00
- item condition:
- Used
- Remanufactured
- New
- Gebraucht
- in stock #: 5
- started: may 2, 2024
general perfoelectric:
- category: Auto Parts > Electrical Components
returns perfoelectric:
- policy: no returns
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