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Denso Platinum TT Spark Plug | PT20TT

Audi, Cadillac, Chevrolet, Dodge, Eagle, Ford, Lincoln, Mazda, Mercury, Oldsmobile & more
$2.99
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$3.11
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$5.07
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Make Sure It Fits

P/N: PT20TT Denso Platinum TT
Cross References:
  • 4512

Spark plugs provide the spark needed to ignite the air/fuel mixture in each cylinder for engine combustion. High voltage from the ignition coil is transferred through the spark plug to an air gap between the spark plug tip and the spark plug ground to the engine. Once the voltage reaches the air gap, the voltage jumps the gap in the form of a spark, igniting a compressed air fuel charge inside the cylinder. The air fuel charge explodes, creating the force needed to push the cylinder down and turning the engine crankshaft to propel the engine. In short, spark plugs serve a vital function in keeping your vehicle running properly.

Components of a Spark Plug
  • A metal terminal that connects to the ignition system
  • A center electrode for current to flow through the spark plug with a tip for the current to jump making the spark
  • A ribbed ceramic insulator to keep current flowing through the spark plug center electrode and not into other parts of the engine
  • A threaded metal case to anchor the spark plug into the cylinder head with a ground electrode for the spark to jump to
  • A seal to seal the spark plug case to the cylinder head to prevent cylinder compression from escaping
Types of Spark Plugs

The biggest differences in spark plug construction are the materials used for the electrodes, their conductivity, and their wearability.

  • Copper is the base material for the center electrode on most spark plugs as it provides superb conductivity. These tend to wear quickly from the electrical transfer created by the spark and fully copper spark plugs need to be replaced every 15,000 miles.
  • Copper core spark plugs with yttrium or nickel tipped electrodes and grounds take longer to wear and can last up to 30,000 miles.
  • Platinum tipped copper core electrodes wear even less, provide superior conductivity, and can last up to 60,000 miles.
  • Iridium tipped copper core spark plugs wear the least and can last over 100,000 miles.

When a spark plug fails prematurely it will provide a weak spark or no spark at all. Causes of premature spark plug failure can include oil leaking from the valve cover into the spark plug chamber, your engine running too lean and overheating the spark plug, and your engine running too rich and fuel fouling the plug.

Most engines are designed to run on only one type of spark plug based on its use. Be sure to check your owner’s manual for the right type of spark plug needed for your vehicle.

View more Denso Spark Plugs.

Denso is a worldwide leader in the manufacture of advanced automotive technology, systems, and components. They are OEM (original equipment manufacturer) on numerous powertrain, climate control, electronics, safety, and telematics for many different car and truck manufacturers around the world. Its aftermarket division of filters, spark plugs, and wipers are also built to OE specifications to ensure proper fitment and function.
Left = Driver side and Right = Passenger side.
All parts are priced individually unless identified as a set or kit. "Per car" notes identify how many of a given part your car has and "Left/Right or Front/Rear" notes means the part fits the left or right side of the car. These parts are still sold individually and you'll need to select the appropriate quantity if you plan to replace more than one of this item.

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Auto parts at wholesale prices is what you will find at AutohausAZ. Have you been searching the web for auto parts for your vehicle? You have come to the right place! Here at Autohaus, we strive to offer low prices on quality replacement parts and providing first rate customer service.

What This Denso Platinum TT Spark Plug Fits?

Application information below is for reference only and should not be used to determine the exact vehicle fitment. Please use the "Make Sure It Fits" vehicle selection box above to determine the exact fitment and review any application notes. If you need any help determining if this part works with your vehicle, please don't hesitate to contact us.

Audi
97-99 - A8
Platinum-Titanium Resistor Twin Tip
97-99 - A8 Quattro
Platinum-Titanium Resistor Twin Tip
90-94 - V8 Quattro
Platinum-Titanium Resistor Twin Tip
Cadillac
86-88 - Cimarron Base, d'Oro
Platinum-Titanium Resistor Twin Tip; Fuel Delivery Type: FI; Fuel Type: GAS
10-10 - CTS V
Platinum-Titanium Resistor Twin Tip; Fuel Delivery Type: FI; Fuel Type: GAS
Chevrolet
90-90 - Camaro RS
Platinum-Titanium Resistor Twin Tip; Fuel Delivery Type: FI; Fuel Type: GAS
87-90 - Cavalier Base, CS, RS, VL, Z24
Platinum-Titanium Resistor Twin Tip; Fuel Delivery Type: FI; Fuel Type: GAS
10-10 - Corvette Z06, ZR1
Platinum-Titanium Resistor Twin Tip; Fuel Delivery Type: FI; Fuel Type: GAS
91-95 - Lumina Euro, LS, Z34
Platinum-Titanium Resistor Twin Tip; Fuel Delivery Type: FI; Fuel Type: GAS
95-95 - Monte Carlo Z34
Platinum-Titanium Resistor Twin Tip; Fuel Delivery Type: FI; Fuel Type: GAS
75-76 - Vega Cosworth
2.0L L4 Platinum-Titanium Resistor Twin Tip; Fuel Delivery Type: FI; Fuel Type: GAS
Dodge
90-92 - Monaco ES, LE
Platinum-Titanium Resistor Twin Tip; Fuel Delivery Type: FI; Fuel Type: GAS
Eagle
88-89 - Medallion DL, LX
L4 Platinum-Titanium Resistor Twin Tip; Fuel Delivery Type: FI; Fuel Type: GAS
88-92 - Premier ES, ES Limited, LX
Platinum-Titanium Resistor Twin Tip; Fuel Delivery Type: FI; Fuel Type: GAS
Ford
86-86 - Aerostar Base, XL, XLT
Platinum-Titanium Resistor Twin Tip; Fuel Delivery Type: CARB; Fuel Type: GAS
86-87 - Aerostar Base, XL, XLT
Platinum-Titanium Resistor Twin Tip; Fuel Delivery Type: FI; Fuel Type: GAS
92-94 - Crown Victoria Base, LX, Police Interceptor, S, Touring Sedan
Platinum-Titanium Resistor Twin Tip; Fuel Delivery Type: FI; Fuel Type: GAS
08-08 - E-150 Base, XL, XLT
Platinum-Titanium Resistor Twin Tip; Fuel Delivery Type: FI; Fuel Type: GAS
09-09 - E-250
Platinum-Titanium Resistor Twin Tip; Fuel Delivery Type: FI; Fuel Type: FLEX
08-08 - E-250
Platinum-Titanium Resistor Twin Tip; Fuel Delivery Type: FI; Fuel Type: GAS
08-09 - E-350 Super Duty Base, XL, XLT
Platinum-Titanium Resistor Twin Tip; Fuel Delivery Type: FI; Fuel Type: GAS
84-85 - Escort GT Turbo
L4 Platinum-Titanium Resistor Turbo Twin Tip; Fuel Delivery Type: FI; Fuel Type: GAS
81-83 - Escort Base, GL, GLX, GT, L & more
L4 Platinum-Titanium Resistor Twin Tip; Fuel Delivery Type: CARB; Fuel Type: GAS
86-86 - Escort GL, GT, L, LX, Pony
L4 Platinum-Titanium Resistor Twin Tip; Fuel Delivery Type: FI; Fuel Type: GAS
84-85 - EXP Turbo
L4 Platinum-Titanium Resistor Turbo Twin Tip; Fuel Delivery Type: FI; Fuel Type: GAS
86-88 - EXP Base, Luxury, Sport
L4 Platinum-Titanium Resistor Twin Tip; Fuel Delivery Type: FI; Fuel Type: GAS
06-10 - Explorer 4WD Eddie Bauer, Limited, XLS, XLT
Platinum-Titanium Resistor Twin Tip; Fuel Delivery Type: FI; Fuel Type: GAS
06-10 - Explorer RWD Eddie Bauer, Limited, XLS, XLT
Platinum-Titanium Resistor Twin Tip; Fuel Delivery Type: FI; Fuel Type: GAS
07-10 - Explorer Sport Trac 4WD Limited, XLT
Platinum-Titanium Resistor Twin Tip; Fuel Delivery Type: FI; Fuel Type: GAS
09-09 - Explorer Sport Trac AWD Limited
Platinum-Titanium Resistor Twin Tip; Fuel Delivery Type: FI; Fuel Type: GAS
07-10 - Explorer Sport Trac RWD Limited, XLT
Platinum-Titanium Resistor Twin Tip; Fuel Delivery Type: FI; Fuel Type: GAS
99-03 - F-150 Harley-Davidson Edition, Lightning
Platinum-Titanium Resistor Twin Tip; Fuel Delivery Type: FI; Fuel Type: GAS
03-04 - Focus LX, SE, ZTS, ZTW, ZX3 & more
L4 Platinum-Titanium Resistor Twin Tip; Fuel Delivery Type: FI; Fuel Type: GAS
Lincoln
93-95 - Mark VIII Base, LSC
Platinum-Titanium Resistor Twin Tip; Fuel Delivery Type: FI; Fuel Type: GAS
05-05 - Navigator 4WD
Platinum-Titanium Resistor Twin Tip; Fuel Delivery Type: FI; Fuel Type: GAS
05-05 - Navigator RWD
Platinum-Titanium Resistor Twin Tip; Fuel Delivery Type: FI; Fuel Type: GAS
91-94 - Town Car Base, Cartier, Cypress, Executive, Jack Nicklaus & more
Platinum-Titanium Resistor Twin Tip; Fuel Delivery Type: FI; Fuel Type: GAS
Mazda
05-05 - 3 i
2.0L L4 Resistor Platinum-Titanium Twin Tip
03-03 - 6 S
Platinum-Titanium Resistor Twin Tip
94-04 - B3000 Base, DS, SE, SX, Troy Lee
Platinum-Titanium Resistor Twin Tip
94-00 - B3000 4WD Base, SE
Platinum-Titanium Resistor Twin Tip
94-00 - B3000 RWD Base, SE
Platinum-Titanium Resistor Twin Tip
95-09 - B4000 Base, SE
Platinum-Titanium Resistor Twin Tip
94-96 - B4000 4WD LE, SE
Platinum-Titanium Resistor Twin Tip
94-96 - B4000 RWD LE, SE
Platinum-Titanium Resistor Twin Tip
91-91 - Navajo LX
Platinum-Titanium Resistor Twin Tip
92-94 - Navajo 4WD DX, LX
Platinum-Titanium Resistor Twin Tip
92-94 - Navajo RWD DX, LX
Platinum-Titanium Resistor Twin Tip
Mercury
83-84 - Capri Black Magic RWD, Crimson Cat RWD, GS RWD, L RWD, RS Turbo & more
L4 Platinum-Titanium Resistor Turbo Twin Tip; Fuel Delivery Type: FI; Fuel Type: GAS
84-86 - Cougar XR-7
L4 Platinum-Titanium Resistor Turbo Twin Tip; Fuel Delivery Type: FI; Fuel Type: GAS
94-95 - Cougar XR-7
Platinum-Titanium Resistor Twin Tip; Fuel Delivery Type: FI; Fuel Type: GAS
92-94 - Grand Marquis GS, LS
Platinum-Titanium Resistor Twin Tip; Fuel Delivery Type: FI; Fuel Type: GAS
85-85 - Lynx Base, GL, GS, L, XR3
L4 Platinum-Titanium Resistor Twin Tip; Fuel Delivery Type: CARB; Fuel Type: GAS
84-86 - Lynx Base, GL, GS, L, LS & more
L4 Platinum-Titanium Resistor Twin Tip; Fuel Delivery Type: FI; Fuel Type: GAS
07-10 - Mountaineer AWD Base, Premier
Platinum-Titanium Resistor Twin Tip; Fuel Delivery Type: FI; Fuel Type: GAS
07-10 - Mountaineer RWD Base, Premier
Platinum-Titanium Resistor Twin Tip; Fuel Delivery Type: FI; Fuel Type: GAS
86-86 - Sable GS, LS
L4 Platinum-Titanium Resistor Twin Tip; Fuel Delivery Type: FI; Fuel Type: GAS
86-87 - Sable GS, LS
Platinum-Titanium Resistor Twin Tip; Fuel Delivery Type: FI; Fuel Type: GAS
84-84 - Topaz Base, GS, LS
L4 Platinum-Titanium Resistor Twin Tip; Fuel Delivery Type: CARB; Fuel Type: GAS
Oldsmobile
91-95 - Cutlass Supreme Base, International, S, SL
Platinum-Titanium Resistor Twin Tip; Fuel Delivery Type: FI; Fuel Type: GAS
86-87 - Firenza GT
Platinum-Titanium Resistor Twin Tip; Fuel Delivery Type: FI; Fuel Type: GAS
Pontiac
89-89 - Firebird Trans Am, Trans Am GTA SE
Platinum-Titanium Resistor Turbo Twin Tip; Fuel Delivery Type: FI; Fuel Type: GAS
90-90 - Firebird
Platinum-Titanium Resistor Twin Tip; Fuel Delivery Type: FI; Fuel Type: GAS
91-95 - Grand Prix GT, GTP, LE, SE, STE
Platinum-Titanium Resistor Twin Tip; Fuel Delivery Type: FI; Fuel Type: GAS