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NGK 4952 Spark Plug
| Brand | NGK 4952 |
|---|---|
| Center Electrode Core Material | Copper |
| Center Electrode Tip Material | Nickel |
| Electrical Terminal Type | Non-Removable Nut |
| Ground Configuration | Standard |
| Ground Electrode Core Material | Nickel |
| Ground Electrode Quantity | 1 |
| Ground Electrode Tip Design | Standard |
| Hex Size | 5/8 |
| Insulator Height | 50.50 |
| Manufacturer Heat Range | 7 |
| Part Number | BKR7ES-11 |
| Pre-Gap Size | .044 |
| Reach | .75 |
| Resistance | 5000 |
| Seat Type | Flat |
| Stock Number | 4952 |
| Thread Diameter | 14.00 |
| Product line | Standard Spark Plug |
| Fits | Saab and Acura · 6 vehicles |
OE supplier heritage. Built by NGK, a long-time original equipment spark plug manufacturer.
Copper core. Helps promote consistent ignition performance and heat transfer.
Standard design. A straightforward spark plug with a flat seat and preset gap.
Cross-references Autolite 3923, NGK 4952 and 22401-85E17 for the same application. See all 8.
Will it fit your vehicle?
Free return shipping if it doesn't fit.
NGK Standard Spark Plug 4952 Overview
NGK Standard Spark Plug 4952 is a direct ignition service part built around OE-style construction for consistent combustion performance. It uses a copper center electrode, nickel tip materials, and a standard ground electrode design to support reliable spark delivery in everyday driving.
Compatible With 1999-2003 Saab 9-5 and 2001 Acura Integra applications listed below, this NGK spark plug is a practical replacement for routine tune-up service. The BKR7ES-11 part number is also identified as NGK 4952 for ordering and cross-reference purposes.
Key Features
- NGK Standard Spark Plug line for secondary ignition service
- Part number 4952, BKR7ES-11
- 5000 ohm resistance
- Copper center electrode core with nickel tip material
- Nickel ground electrode core with standard tip design
- Pre-gapped to .044 inch
- 14.00 mm thread diameter, .75 inch reach, flat seat
- 5/8 hex size with non-removable nut terminal
- Manufacturer heat range 7
Product Details
NGK builds this Standard Spark Plug to OE-style dimensions and materials for dependable ignition performance in a wide range of domestic and import vehicles. The copper core helps conduct heat efficiently, while the nickel electrode design supports stable spark transfer under normal operating conditions. For fitment-specific service, Fits 1999-2003 Saab 9-5, N/A, and Fits 2001 Acura Integra, N/A, with the plug gap noted at 0.039 inch for Saab 9-5 and 0.044 inch for Acura Integra.
This part cross-references Autolite 3923 for the same application.
Common Issues This Part Can Address
- Hard starting caused by worn spark plug electrodes
- Rough idle from inconsistent ignition firing
- Misfire conditions related to plug wear or incorrect gap
- Reduced throttle response from degraded spark delivery
- Maintenance intervals requiring spark plug replacement
Installation Notes and Tips
Verify the specified gap before installation and adjust only as needed for the vehicle application. Confirm thread diameter, reach, seat type, and terminal style match the original plug before service. Use the vehicle service manual for torque and removal procedures, and inspect ignition components at the same time for wear or contamination.
Quality Assurance
NGK is a major OE spark plug supplier with long-standing manufacturing experience in North America and global distribution. The brand’s OE-focused production standards support consistent fit, durability, and operational performance across passenger car applications.
| Year | Make | Model | Liters | Cylinders | Position | Notes |
|---|---|---|---|---|---|---|
| 2003 | Saab | 9-5 | 3.0L | V6 | N/A | Gap 0.039"; OE Equivalent Design*; 30,000 mi OE Mfr Recommended Service Interval; Standard Spark Plug |
| 2002 | Saab | 9-5 | 3.0L | V6 | N/A | Gap 0.039"; OE Equivalent Design*; 30,000 mi OE Mfr Recommended Service Interval; Standard Spark Plug |
| 2001 | Acura | Integra | 1.8L | L4 | N/A | Adjust spark plug gap to 0.044 inches.; Standard Spark Plug |
| 2001 | Saab | 9-5 | 3.0L | V6 | N/A | Gap 0.039"; OE Equivalent Design*; 30,000 mi OE Mfr Recommended Service Interval; Standard Spark Plug |
| 2000 | Saab | 9-5 | 3.0L | V6 | N/A | Gap 0.039"; OE Equivalent Design*; 30,000 mi OE Mfr Recommended Service Interval; Standard Spark Plug |
| 1999 | Saab | 9-5 | 3.0L | V6 | N/A | Gap 0.039"; OE Equivalent Design*; 30,000 mi OE Mfr Recommended Service Interval; Standard Spark Plug |
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