Help keep high-voltage spark flowing to every cylinder with the Standard Ignition Distributor Cap GB-444. It fits many vehicles as a direct-fit replacement for the listed applications, including the 1976-1980 Mercedes-Benz 450SLC, 1984-1985 Mercedes-Benz 380SE and 1981-1985 Mercedes-Benz 380SL. See the "Vehicles it fits" section for the full list and engine details.
The distributor cap works with the rotor to carry high-voltage current from the ignition coil to each spark plug wire terminal in firing order. A cracked cap, carbon tracks inside it, or corroded terminals can disrupt that path.
- Controlled manufacturing: Standard Ignition makes original equipment ignition products worldwide and keeps quality control in-house through the whole process, from components to the finished product.
- Built on experience: Its distributor caps and rotors draw on decades of research and development.
- Insulating cap material: Standard Ignition builds its distributor caps from high dielectric strength, glass/mineral reinforced polyester resin. The material is designed for less carbon tracking and greater resistance to electrical breakdown.
Signs this part may need replacing: misfires, rough running, hard starting, visible cracks, carbon tracking inside the cap, or corroded terminals. If a worn cap is the cause, this part replaces it. Inspect the rotor and plug wires at the same time.
Interchange: C639 · 0290004500 · 0290004502 · 0290004505 · 1235522293 · 290004500 · 290004505 · RB942 · EP739 · 12302976 · 0001583402 · 0001584202 · 1583402 · 92860290200
Product information is for general reference and may contain errors. See our Disclaimer.
This part cross-references / interchanges with the following part numbers:
C639, 0290004500, 0290004502, 0290004505, 1235522293, 290004500, 290004505, RB942, EP739, 12302976, 0001583402, 0001584202, 1583402, 92860290200, GB-444
Frequently Asked Questions
What does a distributor cap do?
It works with the distributor rotor to carry high-voltage current from the ignition coil to each spark plug wire terminal. This delivers spark to the cylinders in the correct firing order.
Which vehicles does the GB-444 fit?
It fits many vehicles, including the 1976-1980 Mercedes-Benz 450SLC, 1984-1985 Mercedes-Benz 380SE and 1981-1985 Mercedes-Benz 380SL. See the "Vehicles it fits" section for the full list.
What is the cap made of?
Standard Ignition builds its distributor caps from high dielectric strength, glass/mineral reinforced polyester resin. The material is designed for less carbon tracking and greater resistance to electrical breakdown.
What are signs a distributor cap may need replacing?
Misfires, rough running, hard starting, cracks, carbon tracks inside the cap, or corroded terminals. Diagnose the cause first, because plug wires, the rotor or the coil can produce similar symptoms.
What part numbers does it replace?
It cross-references numbers including C639, RB942, EP739, 0290004500 and 0001583402. The full list is on the Interchange line in the description.
