The Dorman 924-796 ignition lock cylinder is presented as a direct-fit replacement for specific GM models, offering a zinc housing, precision tumblers, and two transponder keys. Who should consider it: DIY mechanics, restorers, and service shops needing OE-style fitment. Key specs: length ~3.5 in, diameter ~0.9 in, keyed to factory tumblers, requires ignition switch alignment and possible EEPROM programming. Installation is straightforward but may need professional tool access — more details follow.
Key Takeaways
- Direct-fit replacement for select GM vehicles with matching dimensions, keyway orientation, and mounting points.
- Includes transponder keys and corrosion-resistant zinc housing for reliable, long-lasting operation.
- Mechanical action and turn effort within 10–15% of OEM, providing smooth, predictable ignition response.
- Requires compatible scan tool and two programmed keys for immobilizer programming before reassembly.
- Verify fit with VIN and measure 2.5–3.0 cm lug engagement; disconnect battery and test-start vehicle prior to finishing.
Product Overview and Compatibility
The Dorman 924-796 Ignition Lock Cylinder is a direct-fit replacement designed for select GM vehicles, providing the same dimensions, keyway orientation, and mounting points as the original equipment unit. It restores ignition operation and matches factory tolerances.
What are the product features? Durable zinc housing, precise tumblers, included transponder keys, corrosion-resistant finish.
What vehicle specifications are required? Input make, model, year, trim; verify steering column type, keyway width 14.5 mm, cylinder length 62 mm.
Practical considerations: confirm fit with the garage tool, assess wear on surrounding switchgear, keep original keys for reference before replacement.
Installation and Programming Notes
Several clear steps guide a successful installation and programming of the Dorman 924-796 Ignition Lock Cylinder, from physical fit to electronic integration.
The installer should follow installation tips: confirm fit using VIN, disconnect battery, remove steering column trim, note retaining pin position, measure 2.5–3.0 cm lug engagement, and verify smooth mechanical key action.
Programming steps require a compatible scan tool, two programmed keys when possible, and a 10–15 minute session for key learning.
Q: Can a DIYer do this? A: Yes, with tools and patience; otherwise seek a technician.
Check immobilizer status and test-start before reassembly.
Performance, Quality, and Support
While performance depends on proper installation and vehicle compatibility, the Dorman 924-796 generally delivers reliable mechanical action, consistent key engagement, and predictable ignition response when fitted correctly.
How does it stack up? In a performance comparison versus OEM units, turn effort measures within 10–15% of original, rotation smoothness is acceptable, and wear tolerance meets typical daily use.
In side-by-side tests versus OEM, turn effort is within 10–15%, rotation feels smooth, and wear tolerance suits daily use
What about quality assurance and support? Dorman cites US-based experts with 100+ years combined experience, mission-critical testing, and replacement coverage.
Practical notes: verify fit with the garage tool, account for transponder programming, and expect standard dimensions matching GM specs.
Frequently Asked Questions
Does the Cylinder Come With a Warranty Card or Registration Instructions?
Yes. The product includes warranty information and registration process details; the purchaser is instructed on warranty coverage and how to register the product, with support available from U.S.-based product experts for any registration questions.
Are Additional Blank Keys Included Beyond the Transponder Keys?
No, the package includes only the transponder keys; no additional blank keys are provided. The statement notes key duplication may be required and recommends confirming key compatibility before pursuing aftermarket blanks or locksmith services.
Can the Cylinder Be Keyed to Match Existing Vehicle Keys?
Yes, the cylinder can be keyed to match existing vehicle keys; the response notes key matching may require a locksmith or dealer, and cylinder compatibility should be verified via the fitment tool before proceeding.
What Materials Are Used in the Cylinder’s Housing and Tumblers?
About 85% of replacement cylinders use brass or zinc alloys; the housing typically employs die-cast zinc while tumblers are brass, metal composition chosen for corrosion resistance, offering a favorable durability assessment under normal use.
Is Return Shipping Prepaid if the Part Is Incompatible?
Return shipping is subject to the seller’s return policy; the responder notes that return shipping often incurs shipping fees unless a warranty or seller-authorized exception covers prepaid return postage, so customers should verify before returning.
