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<h2>The ignition distributor's critical role</h2>The ignition distributor plays a vital role in the traditional ignition system of gasoline-powered engines. Its primary function is to take the high-voltage spark produced by the ignition coil and direct it to the appropriate spark plug at the exact moment, ensuring each engine cylinder fires in the proper sequence. The distributor is usually positioned at the top or side of the engine block. Ignition distributors were commonly used in older gasoline engines, such as Ford, Chevrolet, and many Japanese car models. They were also widely used in motorcycles and small engines like lawnmowers.If the distributor&nbsp;fails or has issues, it can significantly impact the vehicle. A complete distributor malfunction will prevent the engine from starting or running at all. Partial problems can cause inaccurate ignition timing, leading to reduced power, higher fuel consumption, and increased emissions. Distributor faults can also result in misfiring, rough idling, intermittent stalling, and difficulty maintaining high speeds. If a vehicle's distributor is damaged, it's crucial to replace or repair it promptly to restore proper engine functionality, performance, and efficiency.<h2>How to replace the ignition distributor</h2><ol><li>Begin by disconnecting the negative battery cable. Locate and identify the distributor on the engine, taking note of the old distributor's current position and orientation. Loosen and remove the hold-down bolt or clamp, then carefully pull the old distributor straight up and out.</li><li>Inspect the removed distributor for any signs of wear or damage, and apply a small amount of engine oil or distributor gear lubricant to the new distributor shaft and gear.</li><li>Align the new distributor's rotor with the #1 cylinder's firing position, then slowly insert the new distributor, ensuring the drive gear engages properly with the engine's camshaft. Secure the new distributor by tightening the hold-down bolt or clamp, and reconnecting the ignition coil wire to the new distributor cap.</li><li>Reconnect any disconnected components, then start the engine. Inspect the ignition timing and adjust the distributor as needed. Finally, verify the engine is running smoothly with the correct firing order.</li></ol>Remember to always refer to the vehicle's service manual for any model-specific instructions or torque specifications. Proper installation and timing adjustment are crucial for the engine's reliable performance.<h2>A-Premium ignition distributors: unparalleled performance</h2>A-Premium distributors are crafted with premium aluminum and other high-quality materials, offering exceptional durability and performance. The majority of our distributors come equipped with a cap and motor assembly, providing you with a convenient and seamless purchasing experience. These ignition distributors are designed to fit a wide range of vehicle models, such as Ford, Honda, and Toyota, allowing you to breathe new life into your aging vehicle and restore its ignition efficiency. If you're in the market for a replacement <a href="https://a-premium.com/distributor-cap">distributor cap</a>&nbsp;alone, we also offer options made from premium quality plastic.

Ignition Distributor

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Air Cleaner

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Air Filter Box

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Mass Air Flow Sensors/Car MAF Sensors | A-Premium

Air Flow Sensor

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Air Intake Duct

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Air Intake Hose

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Air Intake Manifold Actuator Control Solenoid

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Air Intake Manifold Flap Adjuster

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Air Intake Manifold Runner Control Sensor

Air Intake Resonator

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Electric Vacuum Pump

Engine Air Duct Assembly

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Engine Air Filter

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Intake Manifold

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Intake Manifold Flap Actuator

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Intake Manifold Repair Bracket

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Intake Manifold Runner Control Valve

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Intercooler

Intercooler Hose

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Oxygen Sensor

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Pressure Sensor

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Supercharger Pulley Drive Unit

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Supercharger Snout Rebuild Kit

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Throttle Body

Throttle Cable

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Throttle Position Sensor

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Turbocharger

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Turbocharger Gasket Kit

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Turbocharger Oil Line

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Vacuum Pump

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Air Filters & Intake Systems

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Camshaft Adjuster

Camshaft Adjuster Cover

Camshaft Kit

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Camshaft Timing Gear

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Camshafts

Chain Tensioner Adjuster

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Cylinder Head

Cylinder Head Assembly

Eccentric Shaft Actuator

Engine Timing Belt

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Engine Valve Cover

Engine Valve Cover Gasket

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Harmonic Balancer

Rocker Arm

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Rocker Arm Shaft Lifter Assembly

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Timing Belt Kit

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Timing Chain Gear

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Timing Chain Kit

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Timing Cover

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Timing-Control Valve Solenoid

Valve Cover Gasket

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Valve Lifter Guides

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Valve Lifters Tappet

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Cams, Timing & Valvetrain

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Belt Tensioner

Coolant Level Sensor

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Crank Installer Tool

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Crankcase Breather Hose

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Crankcase Breather Valve

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Crankshaft Position Sensor

Crankshaft Pulley

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Engine Oil Dipstick

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Engine Oil Dipstick Tube

Engine Oil Filter

Engine Oil Pan Gasket

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Flywheel

Harmonic Balancer Crankshaft Hub

Knock Sensor

Oil Baffle

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Oil Cooler

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Oil Cooler Line

Oil Drip Pan

Oil Filler Cap

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Oil Filter

Oil Filter Base

Oil Filter Cover

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Oil Filter Housing

Oil Filter Housing Cover

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Oil Level Sensor

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Oil Pan

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Oil Pump

Oil Pump Drive Gear Shaft

Oil Pump Pickup Tube

Oil Separator

Serpentine Belt

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Cranks, Pistons, Oil & Components

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Camshaft Position Sensor

Camshaft Position Sensor & Magnet Kit

Connector Plug

Distributor Cap

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Electronic Ignition System

Engine Valve Covers & Ignition Coils Kits

Glow Plug

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Glow Plug Relay Module

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Ignition Coil

Ignition Coils & Spark Plugs & Wires Kits

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Ignition Coils & Spark Plugs Kits

Ignition Coils & Wires Kits

Ignition Lock Cylinder

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Ignition Starter Switch

Ignition Switch Actuator

Kill Switch

Knock Detonation Sensor

Relay

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Spark Plug

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Spark Plug Wire

Electronic Control Modules, Ignition & Distributors

Engine Wiring Harness

Intake Manifold Repair Kit

Pulley

Engine Components & Accessories

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Active Grille Shutter Actuator

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Auxiliary Water Pump

Drive Motor Inverter Cooler

Electric Engine Water Pump

Engine Coolant Air Bleeder Valve

Engine Coolant Pipe

Engine Coolant Shut Off Valve

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Expansion Tank

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Expansion Tank Mounting Plate

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Fan Pulley Bracket

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Fuel Cooler

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Overflow Hose Connector

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Radiator

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Engine Cooling

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The engine comprises many essential elements such as the lower cylinder block, upper cylinder head(s), and the cooling & lubricating systems. With A-Premium aftermarket engine components, you can expect that your engine deliver years of reliable performance. We offer a diverse selection of engine components from air filters and ignition coils (kits) to fuel pumps to cater to your needs.

Nissan D21 Ignition Distributor