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Garage Door Openers · parts

Chamberlain C400C: identify the Canadian legacy sensor kit

For exact Canada-market Chamberlain C400C, the official parts page lists safety sensor kit 041A5034 and bracket kit 041A5266-3 as separate parts. It marks the model discontinued. Match complete model and sensor labels; the available evidence does not establish a newer kit as a drop-in replacement or current stock/supersession.

Safety boundary

  • Do not bypass, disconnect, or defeat safety sensors or automatic reversal. Stop use if entrapment protection is missing, damaged, or fails an owner-level manual check.
  • Keep people, pets, and vehicles clear of a moving door. Limit owner checks to labels, visible obstruction, and normal operation in the exact manual.
  • No DIY spring/torsion/shaft, cable, balancing, track/tension, energized wiring, or internal powerhead work; call a qualified technician.
Part typeExact Canadian Chamberlain C400C legacy sensor/bracket lookup

Compatibility requires a direct model listing, explicit supersession, or equivalent manufacturer evidence.

Required identifiers

  • Full model exactly C400C from rating label and Canada-region parts record
  • Sensor kit 041A5034; bracket kit 041A5266-3
  • Check official model page/support for availability or supersession

Compatibility rules

  • Exact Chamberlain Canada C400C page says discontinued and shows a model-specific diagram.
  • Diagram lists safety sensor kit 041A5034 and bracket kit 041A5266-3 separately.
  • Canadian page also shows a 220-V capacitor; do not generalize region-specific electrical details.

Never assume

  • C400C equals C400 or another regional suffix.
  • 041A5034 remains available or has an established successor.
  • 041A5266-3 fits contemporary sensor generations by appearance.

Exact C400C sensor references

Canada parts page lists sensor kit 041A5034 and separate bracket kit 041A5266-3. C400C is marked discontinued; current part availability/supersession is unknown.

Model and region boundary

Use the full C400C name on the Canadian page. This is not base C400. Do not transfer the 220-V electrical details to another region.

Entrapment protection

Do not bypass or disconnect sensors. If the old kit is unavailable, damaged, or failing, stop automatic close use and ask Chamberlain support or a qualified technician for an exact safe replacement.

Sources and claim boundariesReviewed 2026-10-02
Chamberlain Canada: C400C Replacement Parts and DiagramExact Canada C400C page marks model discontinued and lists diagram parts 041A5034 sensor kit, 041A5266-3 bracket kit, plus region-specific parts.Open official source →Chamberlain: Chamberlain Parts IndexManufacturer identifies exact-model pages for current and discontinued openers; directory/context only, not fitment proof.Open official source →
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