OEM Nissan Caps, Rotors & Contacts
Deliver Spark with Caps, Rotors and Contacts
Shop the vast inventory of parts here at Nissan Canada and you'll realize why mechanics call us first. Distributor components include caps, rotors, and contact points in older ignition systems. These parts distribute high voltage to spark plugs in firing order. Factory distributor parts use materials that resist electrical erosion. Proper operation ensures reliable spark delivery for complete combustion.
How Distributor Parts Route Spark
Your distributor cap houses terminals for each spark plug wire. The rotor spins inside the cap and transfers current from the coil to individual terminals. As the rotor passes each terminal, high voltage jumps the gap. Contact points in older systems open and close to trigger coil discharge. The distributor shaft rotates at half engine speed. Firing order matches engine design for smooth operation. Nissan distributor parts for older vehicles like classic Sentras use brass terminals that resist corrosion. The cap insulates high voltage preventing crossfire between cylinders. Carbon center button transfers current to the rotor. The rotor tip must maintain close clearance to cap terminals. The system works with ignition components for complete spark generation.
What Causes Distributor Component Failure
Distributor caps crack from age or thermal stress allowing voltage leaks. Cap terminals erode from repeated spark jumps. Rotors develop burning at the tip contact point. Contact points pit from arcing and require frequent adjustment. Moisture inside caps creates carbon tracking paths. Generic aftermarket parts use inferior insulating materials. Poor-quality rotors cause misfires from excessive resistance. Cap mounting screws loosen from vibration. Condensation causes internal shorting. Worn distributor shafts create timing variations. Oil leaks contaminate contact points.
Servicing Distributor Components
Replace distributor caps and rotors every 30,000 to 50,000 miles. Contact points need adjustment or replacement every 10,000 miles on older vehicles. Check inside caps for carbon tracking or cracks. Most modern vehicles use distributorless ignition systems. Clean terminals during service to remove oxidation. Test for cracks by operating the engine in darkness—watch for blue sparks. Misfires under load indicate cap or rotor problems. Replace components as matched sets for best performance. Ensure proper rotor phasing during installation. Genuine Nissan distributor parts include correct electrical resistance and insulation properties that prevent misfires, unlike aftermarket parts that may allow voltage leaks or develop excessive contact resistance causing poor engine performance.
Get back on the road quickly with genuine components from Nissan Canada.