Send every spark to the right cylinder with the Standard Ignition Distributor Cap GB-428. It drops in as a direct-fit replacement for the 1980-1984 Audi 4000, 1984 Audi 4000 Quattro, 1978-1984 Audi 5000, 1981-1987 Audi Coupe, 1983-1984 Audi Quattro, and 1983-1984 Volkswagen Quantum.
The distributor cap seats over the distributor and routes high-voltage current from the rotor to each spark plug terminal in the correct firing order, keeping ignition timed to the engine.
- Core job: transfers spark from the rotor out to the plug wires so each cylinder fires in sequence.
- Signs it may need replacing: rough idle, misfires, hard starting, or stalling in damp weather can point to a cracked cap, carbon tracking, or corroded terminals — diagnose the cause first, and if a failed cap is behind it, this replaces it.
- Fitment: designed to install on the listed Audi and Volkswagen applications above.
Interchange: C590 · 1235522218 · RB920 · EP534 · 12321580 · 035905207 · 035905207A · 035905207ASBV
Manufacturer part number GB-428 (also GB428).
This part cross-references / interchanges with the following part numbers:
C590, 1235522218, RB920, EP534, 12321580, GB-428, 035905207, 035905207A, 035905207ASBV
Frequently Asked Questions
What does this distributor cap do?
It seats over the distributor and routes high-voltage current from the rotor to each spark plug terminal in the correct firing order, so every cylinder fires in sequence.
Which vehicles does the GB-428 fit?
It's a direct-fit replacement for the 1980-1984 Audi 4000, 1984 Audi 4000 Quattro, 1978-1984 Audi 5000, 1981-1987 Audi Coupe, 1983-1984 Audi Quattro, and 1983-1984 Volkswagen Quantum.
What are signs the cap may need replacing?
Rough idle, misfires, hard starting, or stalling in damp weather can indicate a cracked cap, carbon tracking, or corroded terminals. Diagnose the cause first; if the cap is at fault, this replaces it.
What numbers does this part interchange with?
It cross-references C590, 1235522218, RB920, EP534, 12321580, 035905207, 035905207A, and 035905207ASBV.
What is the manufacturer part number?
The manufacturer part number is GB-428 from Standard Ignition, designed to install on the listed Audi and Volkswagen applications.
