HomeEmission Control > Air Injection SystemDorman 306-013 Secondary Air Injection Pump
Part #: 306-013

Dorman 306-013 Secondary Air Injection Pump

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14 vehicles fit this part
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OE Direct Replacement — Bolt-on fit, no modifications needed
Fitment: Buick, Chevrolet, GMC, Saab, and Oldsmobile, Rainier, Trailblazer, Trailblazer EXT, Envoy, Envoy XL, Envoy XUV, 9-7x, and Bravada
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Overview of the Dorman Secondary Air Injection Pump 306-013

The Dorman Secondary Air Injection Pump 306-013 is designed to support emission control systems in select Buick, Chevrolet, GMC, Oldsmobile, and Saab vehicles. This air injection pump helps reduce harmful emissions by supplying additional air to the exhaust stream during cold starts.

  • Compatible with Buick, Chevrolet, GMC, Oldsmobile, and Saab models including Trailblazer, Envoy, Bravada, Rainier, and 9-7x
  • Inside diameters of 0.9 and 1.205 inches for precise airflow management
  • Includes an 8-inch wiring harness with 2 wires and a female connector
  • Equipped with 2 hose connectors with outside diameters of 1.111 and 1.436 inches
  • Blade-type terminals with 2 male terminals for secure electrical connections
  • Constructed with durable plastic housing for corrosion resistance
  • Does not include pulley or mounting hardware

Detailed Product Description

The Dorman 306-013 Secondary Air Injection Pump is engineered to meet the specifications required for emission control in various GM and Saab vehicles. Its dual inside diameter design (0.9 and 1.205 inches) ensures optimal air delivery to the exhaust system, improving catalytic converter efficiency during engine warm-up. The pump features a plastic housing that resists corrosion and wear, extending service life. The included wiring harness is 8 inches long with two wires and a female connector, facilitating straightforward electrical integration. Blade-type terminals with male gender provide reliable connectivity. This pump comes with two hose connectors sized at 1.111 and 1.436 inches outside diameter, accommodating factory hose fittings. Note that mounting hardware and pulley are not included, so existing components should be reused or sourced separately.

Applications and Common Issues Addressed

  • Restores proper secondary air injection function to reduce emissions
  • Resolves check engine light codes related to air injection pump failure
  • Eliminates rough idle or poor engine performance caused by faulty air injection
  • Prevents failed emissions tests due to secondary air system malfunctions
  • Addresses unusual noises or pump failure symptoms in compatible Buick, Chevrolet, GMC, Oldsmobile, and Saab models

Installation Notes and Tips

  • Verify compatibility with your specific vehicle model and year before installation
  • Reuse existing mounting hardware or acquire appropriate fasteners as none are included
  • Ensure electrical connections use the blade-type terminals and female connector provided
  • Inspect hoses for wear and replace if necessary to maintain proper seal
  • Follow manufacturer torque specifications when securing the pump

Quality Assurance and Warranty

Dorman parts are manufactured to meet or exceed OEM standards for fit, form, and function. The 306-013 Secondary Air Injection Pump undergoes quality control testing to ensure reliable operation. While specific warranty details may vary, Dorman typically offers a limited warranty covering defects in material and workmanship. Consult product documentation or the supplier for exact warranty terms.

BrandDorman
Part Number306-013
Connector GenderFemale
Connector Quantity1
Grade TypeRegular
Hose Connector Quantity2
Hose Outside Diameter1.111
Hose Outside Diameter1.436
Housing MaterialPlastic
Inside Diameter0.9
Inside Diameter1.205
Mounting Hardware IncludedNo
Package Contents1 Air Pump
Pulley IncludedNo
Terminal GenderMale
Terminal Quantity2
Terminal TypeBlade
Wire Quantity2
Wiring Harness Length8

This part fits 14 vehicles. Search below:

YearMakeModelLitersCylindersPositionNotes
2005BuickRainier4.2LL6N/A
2005ChevroletTrailblazer4.2LL6N/A
2005ChevroletTrailblazer EXT4.2LL6N/A
2005GMCEnvoy4.2LL6N/A
2005GMCEnvoy XL4.2LL6N/A
2005GMCEnvoy XUV4.2LL6N/A
2005Saab9-7x4.2LL6N/A
2004BuickRainier4.2LL6N/A
2004ChevroletTrailblazer4.2LL6N/A
2004ChevroletTrailblazer EXT4.2LL6N/A
2004GMCEnvoy4.2LL6N/A
2004GMCEnvoy XL4.2LL6N/A
2004GMCEnvoy XUV4.2LL6N/A
2004OldsmobileBravada4.2LL6N/A

* 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:

12574379322402MAIP3AP13

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