Spark Plugs

SPARK PLUG TYPE

Application

NGK No.

B2200

Carbureted

BPR5ES or BPR6ES

PFI

BPR5ES-11 or BPR6ES-11

B2600i

ZFR5F-11 or ZFR6F-11

Miata

BKR5E-11, BKR6E-11 or BKR7E-11

MPV

ZFR5F-11 or ZFR6F-11

MX-6 & 626

ZFR5F-11, ZFR6F-11 or ZFR7F-11

Navajo

⁽¹⁾

Protege

DOHC

BKR5E-11, BKR6E-11 or BKR7E-11

SOHC

BKR5E-11 or BKR6E-11

323

BPR5ES-11 or BPR6ES-11

⁽²⁾ RX7

Leading

BUR7EQ

Trailing

BUR9EQ

929

DOHC

ZFR5F-11 or ZFR6F-11

SOHC

ZFR5F-11, ZFR6F-11 or ZFR7F-11

⁽¹⁾	Use Motorcraft spark plug number AWSF-42C.

⁽²⁾	See Fig 1.

SPARK PLUG SPECIFICATIONS

Application

Gap In. (mm)

Torque Ft. Lbs. (N.m)

B2200 (Carbureted)

.031 (.80)

13 (18)

⁽¹⁾ RX7

.055 (1.3)

11 (15)

All Others

.041 (1.0)

13 (18)

⁽¹⁾	See Fig 1.

Fig 1: Identifying Leading & Trailing Spark Plugs & Gap

Courtesy of MAZDA MOTORS CORP.