HomeIgnition > SensorsWalker 235-1421 Engine Crankshaft Position Sensor
Part #: 235-1421

Walker 235-1421 Engine Crankshaft Position Sensor

Walker Products
⚙️ 40 vehicles fit this part
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OE Direct Replacement — Bolt-on fit, no modifications needed
📦Walker Products
🚗Fitment: Audi and Volkswagen, TT Quattro, A4, A4 Quattro, A6, A6 Quattro, and Passat
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Overview of Walker Products Engine Crankshaft Position Sensor

The Walker Products 235-1421 engine crankshaft position sensor is designed for precise engine timing and reliable performance. This gray sensor is compatible with select Audi and Volkswagen models, including the A4, A6, Passat, and TT Quattro.

  • Color: Gray
  • Single oval-shaped male connector
  • One mounting hole for secure installation
  • Three female terminals for accurate signal transmission
  • Mounting bracket not included

Detailed Product Features and Specifications

This engine crankshaft position sensor from Walker Products features a single oval-shaped male connector with three female terminals, ensuring a stable electrical connection. The sensor’s gray housing is designed to withstand engine bay conditions while providing accurate crankshaft position data. It includes one mounting hole for straightforward attachment to the engine block, although a mounting bracket is not part of the package. The part number 235-1421 identifies this specific sensor, which is engineered to meet the requirements of various Audi and Volkswagen vehicles.

Walker Products Brand Line Information

Walker Products offers a range of automotive components focused on engine management and emission control. The 235-1421 crankshaft position sensor is part of their sensor lineup, designed to deliver reliable engine timing signals essential for proper fuel injection and ignition. This product line emphasizes compatibility and durability for European vehicle applications, including Audi and Volkswagen models.

Compatible Vehicles and Common Applications

  • Compatible with Audi A4 and A4 Quattro models
  • Fits Audi A6 and A6 Quattro vehicles
  • Suitable for Volkswagen Passat and Clasico
  • Works with Volkswagen TT Quattro
  • Used to monitor crankshaft position for engine timing and control

Common Issues Addressed by This Sensor

  • Engine misfires due to inaccurate crankshaft position data
  • Difficulty starting or engine stalling
  • Check engine light triggered by sensor faults
  • Poor engine performance and reduced fuel efficiency
  • Irregular idle or hesitation during acceleration

Installation Notes and Tips

When installing the Walker Products 235-1421 crankshaft position sensor, ensure the engine is cool and the battery is disconnected to prevent electrical shorts. Align the sensor properly using the single mounting hole and secure it firmly. Connect the oval-shaped male connector to the vehicle’s wiring harness, confirming the three female terminals are fully engaged. Since no mounting bracket is included, reuse the original bracket or mounting hardware if necessary. Verify sensor alignment and wiring before starting the engine.

Quality Assurance and Warranty

Walker Products maintains strict quality control standards for their sensors, including the 235-1421 crankshaft position sensor. Each unit undergoes testing to ensure accurate signal output and durability under typical operating conditions. While specific warranty details are not provided here, Walker Products generally offers coverage against manufacturing defects. Consult product documentation or authorized sources for warranty terms.

BrandWalker
Part Number235-1421
PositionWalker Products
ColorGray
Connector GenderMale
Connector Quantity1
Connector ShapeOval
Mounting Bracket IncludedNo
Mounting Hole Quantity1
Terminal GenderFemale
Terminal Quantity3

This part fits 40 vehicles. Search below:

YearMakeModelSubmodelTransmissionLitersCylindersPositionNotes
2011VolkswagenClasico2.0LL4N/ASensor Only
2006AudiTT Quattro1.8LL4N/AWalker Products
2005AudiA4Manual3.0LV6N/AWalker Products
2005AudiA4 QuattroManual3.0LV6N/AWalker Products
2005AudiTT Quattro1.8LL4N/AWalker Products
2005VolkswagenPassatManual2.8LV6N/ASensor Only
2004AudiA4Cabriolet3.0LV6N/AWalker Products
2004AudiA4Manual3.0LV6N/AWalker Products
2004AudiA4 QuattroCabriolet3.0LV6N/AWalker Products
2004AudiA4 QuattroBaseManual3.0LV6N/AWalker Products
2004AudiA4 QuattroAvantManual3.0LV6N/AWalker Products
2004AudiA63.0LV6N/AWalker Products
2004AudiA6 Quattro3.0LV6N/AWalker Products
2004AudiTT Quattro1.8LL4N/AWalker Products
2004VolkswagenPassatManual2.8LV6N/AWalker Products
2003AudiA4Cabriolet3.0LV6N/AWalker Products
2003AudiA4Manual3.0LV6N/AWalker Products
2003AudiA4 QuattroManual3.0LV6N/AWalker Products
2003AudiA63.0LV6N/AWalker Products
2003AudiA6 Quattro3.0LV6N/AWalker Products
2003AudiTT Quattro1.8LL4N/AWalker Products
2003VolkswagenPassatManual2.8LV6N/AWalker Products
2002AudiA4Manual3.0LV6N/AWalker Products
2002AudiA4Automatic CVT3.0LV6N/AWalker Products
2002AudiA4 QuattroManual3.0LV6N/AWalker Products
2002AudiA63.0LV6N/AWalker Products
2002AudiA6 Quattro3.0LV6N/AWalker Products
2002AudiTT QuattroBase1.8LL4N/AFrom Chassis / VIN # 8N-2-026 001; Walker Products
2002VolkswagenPassatManual2.8LV6N/AWalker Products
2001AudiA4Manual2.8LV6N/AWalker Products
2001AudiA4 QuattroManual2.8LV6N/AWalker Products
2001VolkswagenPassatManual2.8LV6N/AWalker Products
2000AudiA4Manual2.8LV6N/AWalker Products
2000AudiA4 QuattroManual2.8LV6N/AWalker Products
2000AudiA6 Quattro2.8LV6N/AWalker Products
2000VolkswagenPassatManual2.8LV6N/AWalker Products
1999AudiA4Manual2.8LV6N/AFrom Chassis / VIN # 8D-X-200 001; Walker Products
1999AudiA4 QuattroManual2.8LV6N/AWalker Products
1999VolkswagenPassatManual2.8LV6N/AWalker Products
1998VolkswagenPassatManual2.8LV6N/AWalker Products

* Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.

This part directly replaces or is cross-referenced with the following part numbers:

0261210179078 906 433 B078906433B108-07271080727110-137-E2110137E2146-331146331180-04201800420188822CRK02084D-10084D1008550124550124A5505055S16446PU009146-3316PU009146331706100547517181790558117283.02483024871819.02059020596278CMC3D173CSS1183CSS1683EH0121PC683S10453SEB443SS11065SU5393V10720942

Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.