NGK 4221 Spark Plug
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Standard delivery
Free standard delivery is available for eligible UK mainland orders. Charges may apply for express services and non-mainland destinations. See our delivery information for details.
The NGK 4221 Spark Plug is a replacement engine ignition or starting-aid component that supports controlled combustion by providing the specified spark or pre-heating function. Its catalogue specification records 20,8 mm spanner size, M14 x 1,25 thread size, 19.5 mm thread length, and Nickel Middle Electrode, 3 - Earthed Electrode, and Interference Suppression 5 kOhm spark plug. Confirm the reference, electrical rating, thread or connector details and engine application before fitting; use the specified installation torque and test procedure.
- Vendor NGK
- SKU 4221
- BLUE PRINT : ADBP450191
- BLUE PRINT : ADT32333
- BORG & BECK : BBA2138
- BORG & BECK : BBA2773
- BOSCH : 0 986 475 829
- BREMBO : A 12 151
- DELPHI : EFP235
- DELPHI : LW30158
- DELPHI : TA3172
- DENSO : IRE01-27
- DENSO : U20ESR-N
- DENSO : W27EBR
- FEBI BILSTEIN : 04221
- FEBI BILSTEIN : 182254
- FEBI BILSTEIN : 26442
- HENGST FILTER : H315WK
- LUCAS : LRA00515
- MAHLE : KL 140
- MANN-FILTER : WK 614/36 x
- NGK : 6965
- NRF : 727092
- VALEO : 432764
- VALEO : 433447
- VALEO : 433448
- WAI : 54-136
- WAI : BC8202
- WIX FILTERS : WF8187
- NGK : BR8ET