ACDelco GM ignition knock sensor 213-3521 vs Genuine GM Knock Sensor Wire
Overall winner: Genuine GM Knock Sensor Wire
Key Differences
ACDelco (B000K02EDG) is the more affordable option with strong ratings and marketed as a GM OE-quality direct replacement for ignition knock sensing. The Genuine GM part (B00F676FH4) is pricier, identified as an actual GM component with slightly higher average rating and noted ease of installation but some concerns about connector brittleness and mixed code-accuracy feedback
ACDelco GM ignition knock sensor 213-3521
GM OEM ignition knock sensor. Detects detonation and helps adjust timing to protect the engine. Customers cite good fit and reliable performance, with some mixed results on check engine light behavior
Pros
- direct replacement fit
- reliable ignition detonation sensing
- GM OE quality and durability
- helps protect engine from pre-ignition
Cons
- mixed feedback on check engine light behavior
- some concerns about OEM authenticity
- customer reports code return issues
Genuine GM Knock Sensor Wire
Knock sensor wire designed for GM vehicles. Easy to install with a good fit; customers report trucks run well after installation. Mixed feedback on code accuracy and repair time
Pros
- genuine GM part
- easy to install
- good fit
- positive functionality
Cons
- brittleness concerns with old connectors
- mixed code accuracy feedback
- mixed repair time feedback
Head-to-Head
| Criteria | Winner |
|---|---|
| Price | ACDelco |
| Durability | Tie |
| Versatility | General Motors |
| User Reviews | General Motors |