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ThunderSpark Distributor Cap P/N:925-1021

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$12.99

MPN: 925-1021

Item Package Code: EA

Part Has Core (Y/N): N

Item Package Quantity: 1

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ThunderSpark Distributor Cap P/N:925-1021

$12.99

Description

Keep every high-voltage pulse headed to the right cylinder with the ThunderSpark Distributor Cap 925-1021, a direct-fit replacement for the 1989-1992 Ford Probe and 1988-1992 Mazda 626. In a conventional distributor-based ignition system, the cap directs high-voltage current from the ignition coil to the correct spark plug through the rotor and internal terminals, keeping the firing order on track. Over time a cap can develop carbon tracking, cracking, or corrosion — signs it may need replacing include misfires, hard starting, and drivability issues.

Heat-Resistant Materials: constructed with high-dielectric compounds to withstand high voltage, thermal cycling, and engine vibration.
OE Replacement Quality: built to meet OE specs for terminal alignment, dielectric strength, and conductive-path precision.
Directs High-Voltage Spark: routes ignition coil output to the correct cylinder to support the proper firing order.
Exact OE Fit: designed to fit the original distributor housing for secure contact with the rotor and ignition wires.

If a cracked, carbon-tracked, or worn cap is the cause of a misfire or hard start, this unit replaces it — whether as part of a tune-up or a broader ignition repair. See the Buyer's Guide tab to confirm the engine for your vehicle.

Interchange: 174-6943 · 51-1652 · DHE-440 · 33-8873
1746943 · 511652 · DHE440 · 338873 · 6D5 · 5D1129 · C703 · E92Z12106A · 4967 · 12351065 · B61618V00 · B61618V009U · B61618V00A · F20118V00 · F20118V009U · T45671 · FD171 · FD171T · F986

Manufacturer's Description

Product Specs

Buyer's Guide

Interchange Part Numbers

This part cross-references / interchanges with the following part numbers:

6D5, 5D1129, C703, 174-6943, 51-1652, E92Z12106A, 4967, 12351065, B61618V00, B61618V009U, B61618V00A, F20118V00, F20118V009U, T45671, DHE-440, 33-8873, FD171, FD171T, F986

Frequently Asked Questions

What vehicles does the 925-1021 distributor cap fit?

It's a direct-fit replacement for the 1989-1992 Ford Probe and 1988-1992 Mazda 626. Check the Buyer's Guide tab to confirm the engine for your vehicle.

What does a distributor cap do?

It directs high-voltage current from the ignition coil to the correct spark plug through the rotor and internal terminals, keeping the engine's firing order in sequence.

What are the signs my distributor cap may need replacing?

Carbon tracking, cracks, or corrosion on the cap can lead to misfires, hard starting, and drivability issues. If a worn cap is the cause, replacing it addresses those symptoms.

What is this cap made of?

It's constructed with high-dielectric, heat-resistant compounds designed to withstand high voltage, thermal cycling, and engine vibration.

Is this an OE replacement part?

Yes. It's built to meet OE specs for terminal alignment, dielectric strength, and conductive-path precision, and is designed to fit the original distributor housing.