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Direct-Fit Spark Plug HYRT3C72 | HYR Auto Parts

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8 pcs Iridium Platinum Spark Plugs for Audi Buick Cadillac HYRT3C72

Item#:HYRT3C72

To verify fitmentAdd A Vehicle

Quantity:

Orders ship within 1 business day. Estimated delivery dates apply. See our

Shipping Policy

for details.

2-Year Limited Warranty. Free replacement for defects in materials or workmanship. Misuse or improper installation not covered.

90-Day Hassle-Free Returns on all orders. No return shipping fees when your return meets our Return Policy requirements.

Product image 1

8 pcs Iridium Platinum Spark Plugs for Audi Buick Cadillac HYRT3C72

Quantity:

Specifications

Warranty

2-Year

Quantity

8

Material

Iridium + Platinum

Ground Electrode Tip Material

Platinum

Center Electrode Tip Material

Iridium

Heat Range

5

Gap Size (in)

0.035-0.039

Ground Configuration

Standard

Hex Size (in)

5/8

Installation Torque (N·M)

10-20

Insulator Height (mm)

53

Part Number

TR5IX

Reach (in)

0.69

Resistance (ohms)

5000

Seat Type

Tapered

Thread Size

M14*1.25

Item Located

United States

Hex Size (in)

5/8

Part Number

TR5IX

Seat Type

Tapered

Reach (in)

0.708

Gap Size (in)

0.035-0.039

Ground Configuration

Standard

Center Electrode Core Material

Platinum

Thread Diameter (mm)

14

Insulator Height (mm)

53

Manufacturer Heat Range

5

Note

The Pre-Set Gap of the Spark Plug is 0.035-0.039 inches.

Replaces Part Number

7397

TR5IX

3186

TR5GP

94567

TR5AHX

2238

TR5

3784

PTR5D10

1465

IZTR5B11

Compatibility

To verify fitmentAdd A Vehicle

Year	Make	Model	Engine	Note
1990 - 1991	Audi	V8 Quattro	V8 3.6L	Petrol; 8x Iridium & Platinum Spark Plug
2002 - 2005	Cadillac	Escalade	V8 5.3L	Petrol; 8x Iridium & Platinum Spark Plug
2002 - 2006	Cadillac	Escalade	V8 6.0L	Petrol; 8x Iridium & Platinum Spark Plug
2002 - 2006	Cadillac	Escalade EXT	V8 6.0L	Petrol; 8x Iridium & Platinum Spark Plug
2003 - 2006	Cadillac	Escalade ESV	V8 6.0L	Petrol; 8x Iridium & Platinum Spark Plug
2004 - 2005	Cadillac	CTS	V8 5.7L	Petrol; 8x Iridium & Platinum Spark Plug
2004 - 2006	Cadillac	SRX	V8 4.6L	Petrol; 8x Iridium & Platinum Spark Plug
2004 - 2007	Buick	Rainier	V8 5.3L	Petrol; 8x Iridium & Platinum Spark Plug
2005 - 2006	Cadillac	STS	V8 4.6L	Petrol; 8x Iridium & Platinum Spark Plug
2006 - 2007	Cadillac	CTS	V8 6.0L	Petrol; 8x Iridium & Platinum Spark Plug

Highlights

Product Description

This spark plug is designed to deliver reliable ignition and support smooth engine performance. Worn or fouled spark plugs can cause misfires, rough idle, reduced fuel efficiency, or hard starting. Replacing worn spark plugs helps restore proper combustion and consistent engine operation.

Built for reliable ignition performance, this spark plug delivers consistent spark under a wide range of driving conditions. Designed as a direct replacement for select vehicles, it offers proper fitment and straightforward installation.

Key Features & Benefits

Reliable Ignition Performance

Provides consistent spark for smooth engine operation.

Improved Engine Efficiency

Supports proper combustion for better fuel economy and performance.

Durable Construction

Built with high-quality materials for long service life.

Reduced Misfires and Rough Idle

Helps restore stable engine performance.

OE-Style Fit

Designed to match original equipment specifications.

Easy Installation

Direct replacement design for straightforward installation.