BMW 7 Series 733i 3300 M30 78-87 Ignition Leads Plug Leads Spark Plug Wires
Nationwide Delivery - Door to Door
This is a brand new, affordable OE Specification aftermarket replacement product. 100% Factory tested and built to strict quality control standard to ensure high performance and guaranteed to deliver better fuel economy.
High tension leads or high tension cables or spark plug wires or spark plug cables are the wires that connect a distributor, ignition coil, or magneto to each of the spark plugs in some types of an internal combustion engine. "High tension lead" or "cable" is also used for any electrical cable carrying a high voltage in any context. Tension in this instance is a synonym for voltage. High tension leads, like many engine components, wear out over time. Each lead contains only one wire, as the current does not return through the same lead, but through the earthed/grounded engine which is connected to the opposite battery terminal (negative terminal on modern engines). They have outer insulation several times thicker than the conductor, made of a very flexible and heat resistant material such as silicone or EPDM rubber. The thick insulation prevents arcing from the cable to an earthed engine component. A rubber "boot" covers each terminal. Dielectric grease can be used to improve insulation; a small amount can be applied in the inside of the rubber boot at each end of each wire to help seal out moisture. The wire from each spark plug is just long enough to reach the distributor, without excess. Each end of a spark plug wire has a metal terminal that clips onto the spark plug and distributor, coil, or magneto. There are dedicated spark plug wire pliers, tools designed for removing the terminal from a spark plug without damaging it.
Rough Engine Idle
The most common symptom of bad spark plug wires is a rough engine idle. Spark plug wires are responsible for transmitting the electrical current from a vehicle's electrical system to the engine spark plugs, where the electrical current is used to ignite the engine air/fuel mixture. Bad spark plugs wires can inhibit the normal flow of electrical current that reaches a vehicle's spark plugs, which can cause a rough, erratic engine idle.
An engine miss, which normally occurs as the result of erratic or incomplete engine combustion, is another common symptom of bad spark plug wires. Many times, bad spark plug wires cause the flow of electrical current to the engine spark plugs to become erratic, alternating between brief periods of normal flow and brief periods of abnormal, erratic flow. The result of this is periods of erratic and incomplete engine combustion, which can manifest itself as an engine miss.
Engine hesitation, which is normally most apparent during acceleration, is a condition that often results from either abnormal fuel flow to an engine or abnormal electrical conduction to a vehicle's spark plugs. Bad spark plug wires, whether they degrade internally or develop cracks and breaks in their outer coverings that cause electrical interference, can cause an engine to hesitate if they disrupt the normal flow of electrical current traveling from a car's battery to the engine spark plugs.
Reduced Engine Power
Proper electrical conduction to a vehicle's spark plugs is needed to ensure proper engine combustion and engine power. Any abnormalities in a vehicle's electrical system, including in its spark plugs and spark plug wires, can negatively affect spark plug firing, which will influence engine combustion and engine power. Bad spark plug wires can result in significant engine power loss if they inhibit or interfere with the normal flow of electricity that reaches a vehicle's spark plugs.
A common symptom of a vehicle electrical problem is engine surging, a condition that happens when a vehicle experiences brief spurts of adequate electrical flow to its spark plugs, interspersed with brief periods in which electrical flow is reduced or nonexistent. Engine surging is a common symptom of bad spark plug wires, especially if the wires have cracks or breaks in their outside insulation, a condition that can create significant electrical resistance and lead to abnormal or completely stopped electrical flow to a vehicle's spark plugs.
OE Numbers used for reference purposes
Suppressed Ignition Cables
Suitable Replacement for below Models - (Including International Vehicles)
BMW 7 Series 733i 3300 M30 78-87 Ignition Leads Plug Leads Spark Plug Wires
This product qualifies for Free Delivery* provided it meets the minimum purchase cart value.
We can ship via Overnight Express* or Economy Freight** - Door to Door
* Overnight refers to locations that are Metropolitan (Metro) areas e.g. Durban, Cape Town, Johannesburg, Port Elizabeth, Bloemfontein, etc...
**Economy Freight is 2-7 Days – Usually, goods that are very heavy or bulky e.g. Body Panels, Engine Parts, Cylinder Heads, Differentials, Gearbox’s, Engines, etc...
In certain rare instances, Overnight Deliveries are delayed due to unforeseen circumstances on the side of the shipping company. Unfortunately, we cannot be held responsible for that.
On Free Delivery purchases you may also send your own courier. This can speed up your delivery. You must plan with us.
Regional areas are more than 50 Km's from Metropolitan areas and can take 1-2 Business Days
Remote areas are more than 100 Km's from Metropolitan areas and can take 3-7 Business Days
Mines, Plots, Farms, Game Reserves, National Parks, Universities, Power Stations, and Rural Areas are excluded. These require special trips and can attract additional charges. To avoid extra charges, you may also elect to collect your goods at the nearest Post Office or Courier Depot or PostNet in your region.
Delivery excludes Weekends and Public Holidays. These can be arranged at Additional Costs.
We take great care when packaging and shipping your goods. Once the goods leave our premises and in the safe custody of our shipping companies; mistakes may happen during transit. Please ensure that when you receive your goods, you inspect it to be free of any damage. Also, confirm you have received the correct quantity before signing the shipping company documents.
Please report any damages on the waybill to avoid delays in processing any possible claims.
We ship to all neighboring countries.
Namibia | Botswana | Swaziland | Zimbabwe | Zambia | Mozambique | Malawi | Kenya and rest of Africa except civil unrest areas.
The above shipping terms do not apply to International Buyers. Please request a shipping quotation first. International Buyers must please CHECKOUT using the “In-Store Collection”. PayPal is available for all International Buyers. You can also arrange your own collection from our store.
Insurance not included. Please request insurance if needed.
Please read carefully to make an informed decision.
The warranty is protected by the Consumer Protection Act.
It is highly recommended that this item be fitted by a trained technician who possesses the necessary qualifications. Fitment can also be carried out by an accredited aftermarket repair center, e.g. RMI accreditation or similar. Repair Technicians must have a qualification and training for the fitment of this specific product and use the correct equipment as specified by the Vehicle Manufacturer. This includes, but not limited to; torque settings, gaskets, specified lubricants, quality consumables, computer-aided settings, calibration settings, specified equipment and tools, etc.…
This product has a 12 Month Warranty or 30 000KM’s; whichever occurs first. If there is a specific label on the product regarding warranty duration; that label will supersede this warranty.
Please make sure this is the correct item before purchasing it. Match OE Numbers on the part removed from the vehicle to the part you are purchasing. Seek professional assistance from a qualified mechanical technician before choosing the correct part for your vehicle or contact your local vehicle manufacturers agent to acquire the correct part numbers. If in doubt, please contact us before purchase.
Returns are permitted within the guarantee period. The buyer must obtain a reference number before returning goods. Returns are subjected to inspection and testing by the relevant supplier or manufacturer before a claim is finalized. All documents related to the fitment must be supplied e.g. Job Card, Odometer Reading, Fitment Centre Accreditation.
Some manufacturers do not accept returns on automotive electrical products. These products have been rigorously tested and passed quality assurances prior to leaving the factory. Electrical Products are extremely sensitive. Some vehicles may have existing Electronic or Electrical Degradation within the Electrical Framework of the vehicle which may cause irreparable damage to the new part; upon fitment. Detailed Diagnostics must be supplied acknowledging that a specific part is faulty prior to purchase of the new part and not just generic fault codes indicating a cluster of parts may be faulty. Fault codes from palm-held diagnostic machines are not accepted. Comprehensive Deep Analysis Handheld Diagnostics machines are accepted. Please make sure you understand this prior to purchase.
Terms and conditions apply.
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