Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
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HOMESERVICE MANUALSCHEVROLET2006HHR L4-2.2LPARTS AND LABORTRANSMISSION AND DRIVETRAINAUTOMATIC TRANSMISSION/TRANSAXLEACCUMULATORPARTS INFORMATION
2006 Chevrolet HHR L4-2.2L
Parts Information
2006 Chevrolet HHR L4-2.2LSECTION Parts Information
| Part | Manufacturer | OEM Part # | Price | Notes |
| Piston Pin | GMO | 8684404 | 15.86 | |
| O-Ring | GMO | 8678473 | 7.07 | GMO | 24203774 | 8.28 |
| Servo Piston Pin | GMO | 8684395 | 15.74 | |
| Snap Ring | GMO | 11505767 | 1.23 | Contact Dealer for most current part and price information. | GMO | 11505767 | 1.23 | Contact Dealer for most current part and price information. |
| Accumulator Piston Seal | GMO | 8684673 | 8.16 | GMO | 24203774 | 8.28 | GMO | 24206623 | 8.12 |
| Accumulator Piston | GMO | 24210506 | 28.32 | |
| Accumulator Spring | GMO | 8685241 | 8.28 | GMO | 8685240 | 8.28 |
| Servo Cover | GMO | 24203767 | 30.05 | GMO | 24203773 | 49.95 |
| Spring | GMO | 24203557 | 8.48 | GMO | 8685241 | 8.28 | GMO | 8684393 | 8.04 | GMO | 8684350 | 8.00 | GMO | 24239963 | 12.91 |
| Servo Piston | GMO | 24203766 | 23.26 | GMO | 24203772 | 24.39 |
RENDER: 1.0x
NO RELATED
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.