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GM Genuine Parts Secondary Air Injection Pumps are designed, engineered, and tested to rigorous standards, and are backed by General Motors. The secondary air system injects air into your vehicle’s downstream exhaust system to assist in minimizing emissions. GM Genuine Parts are the true OE parts installed during the production of or validated by General Motors for GM vehicles. Some GM Genuine Parts may have formerly appeared as ACDelco GM Original Equipment (OE). ⚠ WARNING: Cancer and Reproductive Harm –
| Brand |
ACDelco |
|---|---|
| Part Number (MPN) |
12634456 |
| SKU |
12634456 |
| UPC / GTIN |
808709084235 / 00808709084235 |
| Condition |
New |
| Other Names |
12634456 |
| Connector Gender |
Female |
| Connector Quantity |
1 |
| FAQ – Answer 1 |
Yes. It can eventually cause damage to the catalytic converter. |
| FAQ – Answer 2 |
Yes. The one-way check valve can wear or fail, allowing water (which occurs naturally in the exhaust) back into the pump. |
| FAQ – Question 1 |
Can a faulty air pump damage other components? |
| FAQ – Question 2 |
Can water enter the air pump? |
| Features & Benefits – Bullet 1 |
Helps maintain controlled air flow to proper air injection components |
| Features & Benefits – Bullet 2 |
Some GM Genuine Parts may have formerly appeared as ACDelco GM Original Equipment (OE) |
| Features & Benefits – Bullet 3 |
GM Genuine Parts are designed, engineered and tested to rigorous standards, and are backed by General Motors |
| Features & Benefits – Bullet 4 |
GM Engineers design and validate OE parts specifically for your Chevrolet, Buick, GMC, or Cadillac vehicle |
| Features & Benefits – Bullet 5 |
GM regularly updates production and service part designs to integrate new materials and technologies |
| Good Maintenance Practices – Section 1 – Bullet 1 |
Use approved octane fuel for your vehicle. |
| Good Maintenance Practices – Section 1 – Bullet 2 |
Regularly inspect the air injection system for leaks or damage. |
| Good Maintenance Practices – Section 1 – Bullet 3 |
Replace the air pump at sign of excessive noise. |
| Grade Type |
Regular |
| Height (in) |
10.62 |
| Hose Connector Quantity |
2 |
| Hose Inside Diameter (in) |
1.03 |
| Hose Inside Diameter (mm) |
26.25 |
| Hose Outside Diameter |
1.44 |
| Housing Material |
Plastic, Aluminum |
| Length (in) |
13.12 |
| Meets or Exceeds Original Equipment Manufacture Specifications |
Yes |
| Mounting Hardware Included |
No |
| Programming Required |
No |
| Pulley Included |
No |
| Terminal Gender |
Male |
| Terminal Quantity |
2 |
| Terminal Type |
Blade Pin |
| Weight (lb) |
4.19 |
| Width (in) |
12.75 |
| Wire Quantity |
2 |
| Year |
2013 |
| Make |
Chevrolet |
| Model |
Impala |
| Body & Trim |
LS |
| Engine & Transmission |
3.6L V6 – Flex |
| GM |
12634456 |
Vehicle Fitment
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