1978 Porsche 911SC CDI Ignition Coil by Partsklassik

Product Description:

CDI Ignition Transformer  
We have developed this coil to work with the Porsche CDI system and give you the strongest, cleanest spark. This coil is designed to replace the 901.602.502.00 Bosch coil. Our coil comes with decals and post hardware, as well as a free CDI System TSB download. Bracket is also included.

Capacitor Discharge Ignition systems use a transformer, aka the CDI coil. It has a turns ratio of 100 to 1 so the voltage going in is multiplied 100 times to give you the voltage needed for the Porsche CDI system. These are high-energy systems and therefore extremely dangerous. If you are not trained to work on these systems, bring your vehicle to a professional, fully insured Porsche mechanic who is.

We stand behind our coil with a 12 month replacement guarantee when used within Porsche factory specifications for the complete system, using a Bosch or our CDI unit, solid core factory ignition wires, and the correct spark plugs. Factory resistance values on plug wire connectors, rotor, and cap-to-coil wire must be maintained. Many replacement parts fail to meet factory specs. Contact us for additional information.


PLEASE NOTE:
CDI systems often fall out of spec over the years. Incorrect resistance values, insufficient connections and grounds, bad wiring, and incorrect replacement components are a few of the culprits. In time, these conditions can and do cause premature, sudden, and inconvenient component failure!

Consult your Porsche factory shop manual for proper specifications and installation info, or seek out a Porsche specialist who uses factory shop manuals and is capable of fully diagnosing the entire ignition system.  An oscilloscope is an essential tool for troubleshooting a CDI system. We recommend checking out the oscilloscope blog at www.klassikats.com for a few examples.

If you replace a bad coil without ensuring your CDI system is free of issues, you may find yourself replacing the coil again, regardless of brand. Call or email us at Partsklassik for further information.

Manufacturer Information:

Partsklassik
Partsklassik was founded by a Porsche®-trained mechanic with decades of repair and restoration experience. We are a parts and components restorer, as well as a manufacturer of previously unavailable parts for vintage and classic Porsche® vehicles. 

We also carry thousands of OEM and aftermarket parts spanning all systems of the air cooled Porsche® models, including the 356, 911, 912, 914, and 930. We continuously add new products and services to meet the needs of the vintage Porsche® enthusiast. 

Reviews and Ratings:

10 Customer Review(s)

5 Star

10  (100%)

4 Star

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3 Star

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Overall

Value

Performance

Purchased CDI and coil...products are fairly priced, quality is top-notch, items were nicely packaged to reduce shipping damage and all were received in a timely manner. Customer service was excellent and feedback/follow-up were commendable. This was a great purchase experience.

Reviewed by Glenn  F

6/16/2021 6:59:47 PM

Overall

Value

Performance

Thank you again for the great product choices and quality service.

Reviewed by Ron  W

3/11/2020 10:11:55 AM

Overall

Value

Performance

works! nice appearance with the decals

Reviewed by Rick  P

11/25/2019 8:12:36 AM

Overall

Value

Performance

Very grateful Partsklassik makes this CDI specific coil. It's a direct replacement for my original Bosch coil and looks period correct as well.

Reviewed by Andy  B

9/15/2019 3:44:15 PM

Overall

Value

Performance

After returning 6 failed Bosch Silver Coils I am completely satisfied and overjoyed with this PartsKlassik coil and attendant 5,000 Ohm resistance wire going from the coil to the distributor cap. In addition, I am very pleased with the customer service provided by Mike. Thank you very much!!!

Reviewed by David  N

8/24/2019 5:52:38 PM

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All returns require pre-approval. All returns are subject to a 25% restocking fee, with the exception of approved warranty returns, or if we ship a different part number than ordered. We do not accept returns after 30 days.

Inspect your order immediately when it arrives. We must be notified within 5 days if there are any missing, damaged, or incorrect parts.

Returns (except warranty) won't be accepted if the part:
 - Has been installed, used, damaged, is dirty or incomplete
 - Is not sellable as new
 - Arrived in sealed packaging that has been opened
 - Is an electrical part, a distributor spring, a custom or cut-to-length item, or a Special Order
 - Was purchased more than 30 days earlier

Parts must be returned properly padded in a sturdy cardboard box. Returns sent in envelopes will be refused. Items damaged in transit to us cannot be refunded. All returns must be shipped prepaid.