Diesel & DEF components cover the hardware unique to diesel emissions systems — DEF (diesel exhaust fluid) injectors, pumps, tanks, heaters, and NOx sensors that work together to reduce harmful emissions through selective catalytic reduction. A failing component in this system commonly triggers a check engine light, reduced-power or limp mode, a DEF-related dash warning, or in some cases a countdown to a forced engine shutdown until the fault is corrected. Browse replacement DEF pumps, injectors, sensors, and related diesel emissions components for trucks and diesel-equipped vehicles to keep your emissions system running clean and compliant.
Fuel dampers and high-pressure pumps work together in direct-injection fuel systems — the pump generates the extreme pressure needed to inject fuel directly into the combustion chamber, while the damper smooths out pressure pulses so the system runs consistently instead of surging. A failing pump or damper is a common cause of hard starting, rough idle, hesitation under load, or a fuel pressure warning code, and in more severe cases can lead to a no-start condition. Browse replacement fuel dampers and high-pressure fuel pumps for cars, trucks, and SUVs to restore stable, consistent fuel delivery.
Fuel injection tune-up kits bundle the components most commonly replaced together when servicing an injector — typically o-rings, seals, filter baskets, and pintle caps — restoring a proper seal and spray pattern without the cost of full injector replacement. Worn injector seals are a common cause of rough idle, fuel odor, hard starting, or a fuel leak at the injector base, and often get overlooked until the injector itself is blamed. Browse fuel injection tune-up kits for cars, trucks, and SUVs to service your injectors correctly the first time.
Fuel lines and feed lines carry fuel from the tank to the engine under pressure, running as rigid metal line, flexible rubber hose, or a combination of both depending on where they route through the vehicle. A cracked, corroded, or leaking line can cause a noticeable fuel odor, a visible leak, hard starting from lost prime, or in worst cases, a fire hazard if fuel contacts a hot engine surface. Browse replacement fuel lines and feed lines for cars, trucks, and SUVs to keep fuel delivery sealed and running safely to the engine.
The throttle body controls how much air enters the engine, using a valve that opens wider as you press the accelerator — on most modern vehicles, this is managed electronically rather than by a physical cable. A dirty or failing throttle body commonly causes a rough or fluctuating idle, hesitation on acceleration, stalling, or a check engine light tied to airflow or throttle position codes. Browse replacement throttle bodies for cars, trucks, and SUVs to restore smooth, responsive throttle control.
Carburetors mix air and fuel mechanically for combustion, a design found on older and classic vehicles built before fuel injection became standard. Components in this category include complete carburetor assemblies along with the rebuild kits, floats, needle valves, and gaskets that keep them metering fuel correctly. A worn or out-of-adjustment carburetor is a common cause of flooding, hard starting, poor idle, and inconsistent fuel economy. Browse carburetors and carburetor components for classic cars, trucks, and small engines to keep a carbureted fuel system running the way it was designed to.
Keep fuel cool with our fuel coolers for cars and trucks. High-efficiency coolers enhance performance in high-heat conditions.
Optimize fuel flow with our fuel heaters for cars and trucks. Heaters ensure consistent performance in cold conditions.
Maximize efficiency with our fuel injection systems for cars and trucks. Performance systems for precise fuel delivery and power.
Boost power with our fuel injectors and accessories for cars and trucks. High-flow injectors for optimal engine performance.
Ensure clean fuel flow with our fuel lines and filters for cars and trucks. Durable lines and filters for high-performance fuel systems.
Control fuel delivery with our fuel pressure regulators for cars and trucks. Adjustable regulators for precise performance tuning.
Deliver fuel with our fuel pumps and components for cars and trucks. High-performance pumps for reliable power and efficiency.
Optimize fuel delivery with our fuel rails for cars and trucks. High-flow rails for consistent performance in high-performance engines.
Store fuel securely with our fuel tanks and accessories for cars and trucks. High-capacity tanks for performance and racing applications.
Boost power with our methanol injection systems for cars and trucks. Kits enhance combustion for turbo and supercharged engines.
Add instant power with our nitrous oxide components for cars and trucks. Kits and nozzles for high-performance racing applications.
Control throttle with our throttle cables and brackets for cars and trucks. Durable cables for precise performance tuning.
