Delphi Distributor Rotor P/N:DC20025
Keep the spark firing in the right order with the Delphi Distributor Rotor DC20008. Mounted on the distributor shaft beneath the cap, the rotor carries high-voltage current from the coil and distributes it to each cap terminal in the correct firing sequence. It drops in as a direct-fit replacement across a long list of GM trucks, vans and SUVs — including the 1995-2005 Chevrolet Blazer, 1996-2005 Chevrolet Astro, 1999-2006 Chevrolet Silverado 1500, 1995-2004 Chevrolet S10, 1996-2005 GMC Safari, 1999-2006 GMC Sierra 1500, 1996-2000 GMC Yukon, 1997-2000 Isuzu Hombre and 1996-2001 Oldsmobile Bravada. See the Buyer's Guide tab for the full list of 43 applications.
Signs the rotor may need replacing include hard starting, misfire, hesitation or stalling. If a worn or cracked distributor rotor is the cause, replacing it with DC20008 restores the spark distribution path.
Interchange: 173-8021 · 8-10452-457-0 · 8-10489-702-0 · DR-331
1738021 · 8104524570 · 8104897020 · DR331 · D465 · 4R1066 · D236 · RR256 · 10452457 · 10458111 · 1290 · RR256SB · DR975
This part cross-references / interchanges with the following part numbers:
What does the distributor rotor do?
It mounts on the distributor shaft and carries high-voltage current from the coil, distributing it to each cap terminal in the engine's firing order.
Will this fit my vehicle?
The DC20008 is a direct-fit replacement for 43 GM, Isuzu and Oldsmobile applications, such as the 1995-2005 Chevrolet Blazer and 1999-2006 GMC Sierra 1500. Check the Buyer's Guide tab for the full list.
What are signs the rotor needs replacing?
Hard starting, misfire, hesitation or stalling can point to a worn or cracked rotor. Diagnose the cause first, since these symptoms can have other sources.
Should I replace the distributor cap at the same time?
Many technicians replace the cap and rotor together as a matched service since they wear as a pair, but this listing is for the rotor only.
What other part numbers does this replace?
It interchanges with numbers including 173-8021, 8-10452-457-0, DR-331, D465, 4R1066, D236, RR256, 10452457, 10458111, 1290, RR256SB and DR975.
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.