Keep high-voltage spark reaching the right cylinder with the ThunderSpark Distributor Rotor 926-1012. This rotor transfers current from the ignition coil to the correct terminal on the distributor cap, helping maintain accurate spark distribution and timing. It's a direct-fit replacement for a long list of GM applications, including the 1987-1992 Chevrolet Camaro, 1988-1995 Chevrolet/GMC C1500, 1987-1994 Chevrolet Blazer, 1990-1992 Cadillac Brougham, 1991-1993 Buick Roadmaster, and 1995-1996 AM General Hummer — see the Buyer's Guide tab for the full list of 133 applications.
A worn or corroded rotor can contribute to hard starting, misfires, or engine hesitation. If a failing rotor is the cause, installing the 926-1012 restores proper spark delivery. Refer to the Buyer's Guide tab to confirm the correct application and any per-engine details for your vehicle.
Interchange: D-447 · D-220 · 51-5547 · RR-250 · DR-199 · RD-30 · DR-59-C · DR-133 · DR-840 · DR-840X · DR-901
D447 · D220 · 515547 · RR250 · DR199 · RD30 · DR59C · DR133 · DR840 · DR840X · DR901 · 1A8 · 4R1041 · DC20025 · 3210 · 10496798 · 1287 · DR323T · DR326 · DR326T
This part cross-references / interchanges with the following part numbers:
What does the 926-1012 distributor rotor do?
It transfers high-voltage current from the ignition coil to the correct terminal on the distributor cap, helping distribute spark to each engine cylinder at the proper time.
Will this rotor fit my vehicle?
It fits 133 GM applications, including the 1987-1992 Camaro and 1988-1995 C1500. Check the Buyer's Guide tab to confirm the correct fit for your exact year, make, model, and engine.
What are signs my distributor rotor may need replacing?
Hard starting, misfires, or engine hesitation can be signs of a worn or corroded rotor. Diagnose the cause first; if the rotor is at fault, this part replaces it.
What materials is this rotor made from?
It uses high-dielectric-strength materials designed to resist arcing and heat, with a corrosion-resistant contact surface for consistent conductivity and output.
Is this a direct replacement?
Yes. It's engineered to match OE fit, form, and function for proper alignment and spark distribution on the listed applications.
WARNING: These products can expose you to chemicals including lead and phthalates, which are known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.
