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NGK

NGK Crankshaft Position/Pulse Sensor CMC3-A030 81029 NGK81029 CKP Engine Speed Sensor - BMW E30 325i, Porsche 944/928/968, Volvo 740/760 Turbo, Ford Scorpio 2.5 TD, Land Rover Discovery 2.5 TDI, Opel Vauxhall Frontera 2.5 TDS

NGK Crankshaft Position/Pulse Sensor CMC3-A030 81029 NGK81029 CKP Engine Speed Sensor - BMW E30 325i, Porsche 944/928/968, Volvo 740/760 Turbo, Ford Scorpio 2.5 TD, Land Rover Discovery 2.5 TDI, Opel Vauxhall Frontera 2.5 TDS

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NGK 81029 CMC3-A030 Engine RPM Pick-up Sensor

Restore confident starting, stable idle and clean revs with the NGK 81029 CMC3-A030 engine timing sensor. This genuine NGK unit is built to original specification and delivers a crisp, consistent crank signal for accurate ignition control on classic BMW, Porsche, Volvo turbo models, Ford Scorpio 2.5 TD, Land Rover Discovery 2.5 TDI and Opel Vauxhall Frontera 2.5 TDS applications.

We have installed this NGK 81029 in our own workshop and on customer cars with excellent results. Owners report faster hot and cold starts, smooth running and an end to intermittent cut outs and no start issues caused by a weak or failing crank signal.

Why choose NGK 81029 CMC3-A030

  • Original spec accuracy from a trusted ignition specialist
  • Consistent crank angle signal for reliable ignition synchronisation
  • Designed to fit without modification and restore factory performance
  • Robust construction to handle heat and vibration in the engine bay
  • Proven in-house by MJ Modifications with great feedback from enthusiasts

Fix common symptoms

  • Hard starting when warm or cold
  • Intermittent stall or cut out
  • Rough idle, misfire or hesitation
  • No RPM signal or tachometer drop out related to the crank trigger
  • Fault codes pointing to crank reference or engine speed pick-up

Part numbers

  • NGK part number: 81029
  • NGK reference: CMC3-A030
  • Also searched as: crank angle sensor, flywheel sensor, RPM pick-up, reference sensor, timing sender, TDC sensor

Fitting and support

Want it fitted correctly first time? Book installation with MJ Modifications in Warwickshire. Request a quote at info@mjmodifications.co.uk.

Unsure on compatibility? Check by part number and vehicle details before ordering. We can confirm fitment if you provide your UK registration or the last 7 of your VIN at checkout.

Vehicle compatibility

Please verify by part number and vehicle details before ordering.

BMW

  • 3 Series
    • 325e - E30 2.7 (90 kW / 122 HP) (1983-1988)
    • 325e - E30 2.7 (95 kW / 129 HP) (1985-1987)
    • 325i - E30 2.5 (125 kW / 170 HP) (1986-1991)
    • 325i - E30 2.5 (126 kW / 171 HP) (1983-1989)
    • 325i - E30 2.5 (125 kW / 170 HP) (1987-1993)
  • 5 Series
    • 525e - E28 2.7 (90 kW / 122 HP) (1981-1987)
    • 525e - E28 2.7 (92 kW / 125 HP) (1983-1987)
    • 525e - E28 2.7 (95 kW / 129 HP) (1984-1987)

FORD

  • Scorpio Mk1 Hatchback (GAE, GGE) - 2.5 TD (08/1993 - 09/1994)
  • Scorpio Mk1 Saloon (GGE) - 2.5 TD (08/1993 - 09/1994)
  • Scorpio Mk1 Estate (GGE) - 2.5 TD (08/1993 - 09/1994)
  • Scorpio Mk2 Estate (GNR, GGR) - 2.5 TD (10/1994 - 08/1998)

LAND ROVER

  • Discovery I (LJ) - 2.5 TDI 4x4 (10/1989 - 10/1998)

OPEL

  • Frontera A Sport Off-Road Convertible (U92) - 2.5 TDS (09/1996 - 10/1998)
  • Frontera A Off-Road (U92) - 2.5 TDS (09/1996 - 10/1998)

PORSCHE

  • 924
    • 924 Coupe - 2.5 S (110 kW / 150 HP) (09/1985 - 07/1987)
    • 924 Coupe - 2.5 S (118 kW / 160 HP) (08/1987 - 07/1988)
  • 928
    • 928 Coupe - 4.7 S (228 kW / 310 HP) (08/1983 - 07/1986)
    • 928 Coupe - 4.7 S (228 kW / 310 HP) (09/1982 - 12/1984)
    • 928 Coupe - 5.0 GT (243 kW / 330 HP) (01/1989 - 07/1991)
    • 928 Coupe - 5.0 S (M28.45, M28.46) (212 kW / 288 HP) (09/1985 - 12/1986)
    • 928 Coupe - 5.0 S, S4 (235 kW / 320 HP) (08/1986 - 07/1991)
    • 928 Coupe - 5.0 S4 CAT (235 kW / 320 HP) (08/1986 - 07/1991)
    • 928 Coupe - 5.4 GTS (257 kW / 350 HP) (08/1991 - 11/1995)
  • 944
    • 944 Coupe - 2.5 (110 kW / 150 HP) (01/1985 - 07/1987)
    • 944 Coupe - 2.5 (118 kW / 160 HP) (08/1987 - 12/1990)
    • 944 Coupe - 2.5 (120 kW / 163 HP) (06/1981 - 07/1987)
    • 944 Coupe - 2.5 S (140 kW / 190 HP) (08/1986 - 07/1988)
    • 944 Coupe - 2.5 Turbo (162 kW / 220 HP) (08/1985 - 07/1988)
    • 944 Coupe - 2.5 Turbo (184 kW / 250 HP) (09/1987 - 07/1991)
    • 944 Coupe - 2.7 (121 kW / 165 HP) (11/1988 - 08/1989)
    • 944 Coupe - 3.0 S2 (155 kW / 211 HP) (12/1988 - 07/1991)
    • 944 Convertible - 2.5 Turbo (184 kW / 250 HP) (11/1990 - 07/1991)
    • 944 Convertible - 3.0 S2 (155 kW / 211 HP) (12/1988 - 07/1991)
  • 968
    • 968 Convertible - 3.0 (176 kW / 239 HP) (06/1991 - 11/1995)
    • 968 Coupe - 3.0 (176 kW / 239 HP) (06/1991 - 11/1995)

VAUXHALL

  • Frontera Sport Mk1 (A) Off-Road Convertible (U92) - 2.5 TDS (09/1996 - 10/1998)
  • Frontera Mk1 (A) Off-Road (U92) - 2.5 TDS (11/1991 - 06/1998)

VOLVO

  • 740
    • 740 Saloon (744) - 2.0 (118 kW / 160 HP) (01/1986 - 08/1990)
    • 740 Saloon (744) - 2.0 (120 kW / 163 HP) (01/1985 - 12/1985)
    • 740 Saloon (744) - 2.3 Turbo (134 kW / 182 HP) (08/1985 - 12/1988)
    • 740 Estate (745) - 2.3 Turbo (134 kW / 182 HP) (08/1985 - 07/1988)
  • 760
    • 760 Saloon (704, 764) - 2.3 Turbo (127 kW / 173 HP) (08/1982 - 07/1984)
    • 760 Saloon (704, 764) - 2.3 Turbo (134 kW / 182 HP) (08/1984 - 10/1988)
    • 760 Estate (704, 765) - 2.3 Turbo (134 kW / 182 HP) (08/1984 - 08/1990)

Popular search terms

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Buy with confidence

MJ Modifications specialises in performance parts and OEM-spec replacements for enthusiast vehicles. Order your NGK 81029 CMC3-A030 today for a reliable fix to crank signal issues. For professional fitting in Warwickshire or help with compatibility, email info@mjmodifications.co.uk.

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