7900

These spark plugs are compatible with the following vehicles:

Land Rover

Discovery I

3.5 4x4 133bhp 

3.5 4x4 166bhp

3.5 4x4 (SALLJG) 154bhp

Discovery II

4.0 V8 185bhp 

Range Rover Classic

3.5 4x4 131bhp (from construction year 01/1987 to 09/1990)

3.5 4x4 146bhp

3.5 Vogue 126 & 163bhp 

Mercedes Benz

S Class (W126)

420 SE , SEL 218bhp 

560 SE , SEL 300bhp (to construction year 08/1987)

SL Coupe (C107)

350 SLC 200bhp

450 SLC 225bhp

SL Convertible (R107)

420 SL 204 & 218bhp 

450 SL 224bhp 

MG

MGR

V8 190bhp

Porsche

928

4.7 S 301bhp 

4.7 S 310bhp 

5.0 S 288bhp  

5.0 S , S4  320bhp 

5.0 S4 CAT 320bhp  

5.0 GT 330BHP 

5.4 GTS 350bhp  

Rover

2000 - 3500 SD1

3500 156bhp 

3500 Vitesse 193bhp

Electrode Gap: 0,8 mm

Tightening Torque: 28 Nm

Tightening angle: 90 °

Outer Thread: 14 mm

Thread Pitch: 1,25 mm

Thread Length: 19 mm

Spanner Size: 20,8

Spark Position: 3 mm

Number of Poles: 1 terminal

Quality that sets the benchmark: Bosch Nickel spark plugs

Equipped with a ground electrode made from nickel alloy: Bosch Nickel spark plugs are developed to the same high quality as original equipment for a wide range of applications.

High heat conductivity with ground electrode made from nickel alloy and large copper core: For a smoother engine operation and a steady acceleration

Nickel-plated housing and thread: For protection against corrosion and seizure in the aluminum cylinder head without the need for lubrication

Factory pre-set electrode gap: Enables hassle-free replacement of spark plugs

Manufactured using heat-shrink assembly: Improved resilience in extreme temperatures and ensures high gas-tightness

Features & Benefits

Heavy-duty yttrium-enhanced copper core center electrode

Superior reliability & durability for 50% longer performance life vs. even OE plugs

Tapered, v-profile nickel chromium ground electrode

Improved starting in cold weather and increased fuel ignitability

Nickel-plated rolled threads

Complete anti-seize and corrosion protection

Metal glass fused resistor

Maximum interference suppression

Angular, five-ribbed insulator design

Prevents misfire due to current leakage

Workshop tip - INSTALLATION:

1. Unbox the new spark plug

2. Do not lubricate the thread. Screw in the spark plug by hand until it is seated at the cylinder head.

3. Then the spark plug must be tightened and the mandatory, type-specific torque, e.g 23 Nm.

If for any reason you are not happy with your purchase please contact me before leaving feedback and I will do my best to help . Thanks for looking .