NGK Standard Spark Plug – BPR6ES-11 | Box of 4 | 14mm | Pre-Gapped 1.1mm | NGK7133

Box of 4 plugs — pre-gapped to 1.1mm (0.043") from the factory. Verify this gap matches your vehicle’s specification before installing — do not assume the pre-set gap is correct for every application that accepts a BPR6ES-11.

Wide-coverage plug — confirm fitment against your vehicle’s OEM spark plug specification before ordering. The BPR6ES (without -11 suffix) has a different gap — confirm you need the -11 variant.

NGK 7133 BPR6ES-11 standard copper spark plug, box of 4. 14mm thread diameter, 19mm reach, projected insulator, built-in suppression resistor, copper core, pre-gapped to 1.1mm. Ships fast across Canada and the US.

BPR6ES-11 — Part Number Breakdown

• B — 14mm thread diameter, 5/8" hex
• P — projected insulator tip (insulator nose protrudes beyond the shell for improved ignition performance at moderate loads)
• R — built-in suppression resistor (reduces ignition interference with electronics and radio)
• 6 — NGK heat range 6 (mid-range; higher NGK numbers = cooler running plug)
• E — 19mm thread reach
• S — standard copper core electrode
• -11 — factory pre-gapped to 1.1mm (0.043")

NGK Standard — Copper Core Construction

NGK Standard plugs use a solid 98% pure copper core for superior heat dissipation and conductivity. The copper core transfers heat away from the electrode efficiently, helping the plug maintain the correct operating temperature across a wide load range. NGK’s high-grade alumina silicate ceramic insulator provides strong dielectric performance and resistance to thermal shock. Triple gasket sealing prevents combustion gas leakage past the shell. Trivalent metal plating on the shell resists corrosion and thread seizure, which is particularly important on aluminium cylinder heads where plug removal after extended service intervals can otherwise damage the threads.

Confirm Gap Before Installing

The BPR6ES-11 is pre-gapped to 1.1mm (0.043") from the factory. Before installing, verify your vehicle manufacturer’s specified spark plug gap and check the actual gap of each plug with a feeler gauge — factory pre-gapping is a starting point, not a guarantee of exact specification. Adjust the gap by bending only the ground electrode — never apply pressure to the centre electrode or insulator.

BPR6ES vs BPR6ES-11

The BPR6ES (without the -11 suffix) is a related plug with a different factory gap. If your application specifies the BPR6ES, confirm whether the -11 gap (1.1mm) matches before substituting — they are mechanically interchangeable in terms of thread and reach, but the gap difference may affect ignition performance if not corrected on installation.

Verify fitment and gap specification against your OEM plug number before ordering. Pre-gapped to 1.1mm — confirm and adjust to your application’s specification before installing. Torque to manufacturer specification — do not overtighten, especially in aluminium heads. Anti-seize not required with the trivalent-plated shell; applying anti-seize can affect torque readings and is not recommended by NGK.

Specifications

• Brand: NGK
• Part Number: BPR6ES-11 (NGK Stock #7133)
• Type: Standard copper spark plug
• Thread: 14mm
• Hex: 5/8"
• Reach: 19mm
• Tip: Projected insulator
• Resistor: Yes
• Heat Range: 6 (NGK scale)
• Gap: Pre-set 1.1mm (0.043")
• Quantity: Box of 4
• Weight: 0.6 lbs (box)