DC1015 Delphi Distributor Cap
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Delphi Distributor Cap | DC1015

Buick, Cadillac, Chevrolet, GMC, Oldsmobile, Pontiac
$11.13
Reg
$11.59
List
$17.61
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Make Sure It Fits

P/N: DC1015 Delphi

The distributor cap on your vehicle is used to distribute voltage from the ignition distributor, through the spark plug wires, to the spark plugs to create the spark needed for engine combustions. Electrical contacts for each spark plug wire on the inside of the distributor cap isolate and route voltage from the distributor to each spark plug wire independently. Some distributor caps also have an electrical connection for a wire from the ignition coil to send high voltage to the ignition distributor. Additionally, the distributor cap protects the internal parts of the ignition distributor, keeping out dirt and debris from the engine that could damage the ignition distributor. The distributor cap functions by having high voltage created by the ignition coil enter the ignition distributor which sends the voltage through a spinning rotor with an electrical contact that when comes into contact with the electrical contacts on the inside of the distributor cap, allows the voltage to flow to a spark plug wire.

Distributor cap contacts wear from the transfer of electricity jumping from the distributor rotor to the cap and from the cap to the spark plug wires. In addition, distributor caps are made from hard plastic which deteriorates from engine heat and becomes brittle overtime. Because of these things, distributor caps must be replaced regularly as part of routine maintenance.

Replacing Your Distributor Cap

Distributor caps should be replaced at the same time as spark plugs along with the distributor rotor and spark plug wires. Distributor cap replacement intervals vary based on manufacturer’s recommendations and range from 30,000 to 60,000 miles.

Distributor cap replacement is often very simple. By pulling off the spark plug wires on the top of the cap and either unclipping or unscrewing the distributor cap from the ignition distributor, the cap can be lifted off and replaced.

View more Delphi Distributor Caps.

Left = Driver side and Right = Passenger side.
All parts are priced individually unless identified as a set or kit. "Per car" notes identify how many of a given part your car has and "Left/Right or Front/Rear" notes means the part fits the left or right side of the car. These parts are still sold individually and you'll need to select the appropriate quantity if you plan to replace more than one of this item.

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What This Delphi Distributor Cap Fits?

Application information below is for reference only and should not be used to determine the exact vehicle fitment. Please use the "Make Sure It Fits" vehicle selection box above to determine the exact fitment and review any application notes. If you need any help determining if this part works with your vehicle, please don't hesitate to contact us.

Buick
85-85 - Skylark Custom, Limited
Fuel Delivery Type: FI
Cadillac
85-88 - Cimarron Base, d'Oro
Chevrolet
86-89 - Astro Base, CL, CS, LT
90-95 - Astro AWD Base, CL, CS, LT
90-95 - Astro RWD Base, CL, CS, LT
95-95 - Blazer 4WD Base, LT
Vertical Cap Tower Male
95-95 - Blazer AWD LT
Vertical Cap Tower Male
95-95 - Blazer RWD Base, LT
Vertical Cap Tower Male
85-86 - C10 Custom, Scottsdale, Silverado
88-95 - C1500 Base, Cheyenne, Scottsdale, Silverado, WT
88-95 - C2500 Base, Cheyenne, Scottsdale, Silverado, WT
85-92 - Camaro Base, Berlinetta, LT, RS, RS Heritage Edition & more
85-92 - Caprice Base, Classic, Classic Brougham, Classic LS Brougham
85-86 - Cavalier Base, CL, CS, RS, Type-10 & more
85-86 - Celebrity Base, Classic, Estate, Eurosport
Fuel Delivery Type: FI
85-85 - Citation II Base, X-11
Fuel Delivery Type: FI
85-87 - El Camino Base, Conquista, SS
87-95 - G10 Beauville, Bonaventure, Chevy Van, Sportvan
87-95 - G20 Beauville, Chevy Van, Sportvan
87-95 - G30 Beauville, Chevy Van, Hi-Cube
85-85 - Impala
GMC
88-95 - C1500 Sierra, Sierra SL, Sierra SLE, Sierra SLT, Sierra SLX & more
88-95 - C2500 Sierra, Sierra SL, Sierra SLE, Sierra SLX
85-87 - Caballero Base, Amarillo, Diablo
87-95 - G1500 Rally, Rally STX, Vandura
87-95 - G2500 Rally, Rally STX, Vandura
87-95 - G3500 Vandura, Vandura Special
92-94 - Jimmy 4WD Base, SLE, SLS, SLT
95-95 - Jimmy 4WD Base, SL, SLE, SLS, SLT
Vertical Cap Tower Male
95-95 - Jimmy AWD SLT
Vertical Cap Tower Male
92-94 - Jimmy RWD Base, SLE, SLS, SLT
95-95 - Jimmy RWD Base, SL, SLE, SLS, SLT
Vertical Cap Tower Male
88-95 - K1500 Sierra, Sierra SL, Sierra SLE, Sierra SLS, Sierra SLT & more
88-95 - K2500 Sierra, Sierra SL, Sierra SLE, Sierra SLX
90-95 - P3500 Base, Value Van
87-87 - R1500 Base, High Sierra, Sierra Classic
87-87 - R2500 Base, High Sierra, Sierra Classic
88-90 - S15 4WD Base, Gypsy, High Sierra, Sierra Classic
88-91 - S15 Jimmy 4WD Base, Gypsy, Sierra Classic, SLE, SLS & more
88-91 - S15 Jimmy RWD Base, Gypsy, Sierra Classic, SLE, SLS & more
Oldsmobile
91-94 - Bravada
86-86 - Cutlass Ciera Brougham, ES, GT, Holiday, LS & more
Fuel Delivery Type: FI
85-86 - Firenza Base, Brougham LX, Brougham SX, Cruiser LX, Cruiser SX & more
Pontiac
85-85 - 6000 Base, LE, STE
Fuel Delivery Type: FI
86-86 - Bonneville Base, Brougham, LE
85-88 - Fiero Formula, GT, SE, Sport, Value Leader
85-92 - Firebird Base, S/E
86-87 - Grand Prix Base, Brougham, LE
85-86 - Parisienne Base, Brougham