ATP Z-270 auto trans flexplate for the 2003-2006 Chevrolet Silverado 1500 and other vehicles links the engine to the automatic transmission. Its bolt hole spacing and ring gear teeth match the original part.
- Steel construction with bolt holes for the torque converter
- 168 ring gear teeth for the starter
- Allows for torque converter expansion as engine RPM increases
- Crank mounting, 358.775 mm diameter
Quick facts
- Part: ATP Z-270 auto trans flexplate
- Fits: 2003-2006 Chevrolet Silverado 1500 and other vehicles
- Material: Steel
- Condition: New
Constant expansion and contraction can lead to cracks or shearing over time, and a damaged flexplate can cause serious, expensive damage. A broken one cannot be repaired, only replaced. Before you replace the flexplate, rule out the starter and the torque converter as the source of the problem you are chasing. Each engine takes one, mounted on the crankshaft.
Fits
The 2003-2006 Chevrolet Silverado 1500, the 2005 GMC Sierra 1500 and the 1999-2004 Chevrolet Silverado 2500 take this flexplate, along with many other Chevrolet and GMC models. Open the "Vehicles it fits" section to check your exact model and engine.
Specifications
Fit and size
- Diameter: 358.775 mm
- Ring gear teeth: 168
- Quantity per vehicle: 1
- Mounting: crank mounting
Build and materials
- Material: steel
- Condition: new
- Country of origin: Mexico
Interchange: AA-G180 · AA-G187 · FRA-450
GM180 · GM187 · 12551367 · 12621399 · FRA452
This part cross-references / interchanges with the following part numbers:
GM180, GM187, 12551367, 12621399, AA-G180, AA-G187, FRA450, FRA-450, FRA452
Frequently Asked Questions
Will the ATP Z-270 flexplate fit a 2003-2006 Chevrolet Silverado 1500?
Yes. The ATP Z-270 fits the 2003-2006 Chevrolet Silverado 1500. To check another model or engine, open the "Vehicles it fits" section.
How many teeth does the ATP Z-270 flexplate ring gear have?
The ATP Z-270 ring gear has 168 teeth, and the plate measures 358.775 mm in diameter. You can compare both against your old flexplate.
Is this ATP flexplate made of steel?
Yes. It is a steel plate with bolt holes for the torque converter and teeth for the starter.
What does a worn automatic transmission flexplate look like?
Constant expansion and contraction can lead to cracks or shearing as engine RPM rises. A cracked flexplate cannot be repaired, so it is replaced, and a shop can inspect it.
Is the ATP Z-270 interchangeable with part number 12551367?
Yes. 12551367 is one of the numbers this ATP Z-270 flexplate replaces; the rest are on the Interchange line.
