Engine Components


Engine Components

Engine Components

Engine Components for the Astra G (Mk4)


Astra & Zafira Turbo Oil Restrictor Bolt

Oil Restrictor Banjo Bolt To Fit:


The standard oil pressure on the above engines is far too high for the turbos to cope, which is probably why you may have had oil leaks, an oily smell in the cabin, and blue smoke from the exhaust on idle, at some point. Often misdiagnosed as a faulty turbo, this could actually be something as simple as oil seeping past the seals due to the high pressure they are under!

This modified bolt is designed to reduce the maximum oil pressure at the turbo to a much safer level, giving it more than enough to lubricate the internals, without overpowering the seals.

Can be used on standard engines, and highly recommended for tuned vehicles!


£20.38 (24.25)

Out of stock

Astra VXR Fuel Injectors

Genuine Vauxhall Astra VXR Fuel Injectors.

Fits engine types Z20LEH, Z20LET, Z20LEL, Z20LER

*The fuel rail and fuel pressure regulator do not come with the injectors as shown in the image.


£154.96 (184.40)

Out of stock

Cool-Running Thermostats

82 Degree Cool-Running Thermostats.

Suitable for the following engine types:

• C20XE/C20LET

• C20NE

• X18XE/X20XEV

• Z20LET

• X14XE/C16XE/X16XE/X16XEL

• C25XE/X25XE/Y26SE/X30XE/Y32SE


£18.00 (21.42)

Out of stock

Cylinder Head Cover & Gasket - 2.0 Turbo

Cylinder Head Cover / Rocker Cover / Cam Cover and Gasket suitable for:

• Astra H: Z20LEH, Z20LER, Z20LEL

• Zafira B: Z20LEH, Z20LER

• Astra G & Zafira A: Z20LET

• VX220: Z20LET


£200.00 (238.00)

Enlarged & Modified Throttle Body - Z20LET / Z20LEH

Enlarged & modified Throttle Body for Z20LET/LEH engines.

Vastly improves Airflow and Throttle Response. Fully stripped down and inspected, then vapour blasted to bring it back to an 'as new' condition. The bore of the throttle body is then enlarged from 57mm to 62mm, and the spindle is re-profiled. The unit is finally reassembled with the low profile spindle and enlarged butterfly and then fully tested. Any worn bearings and motor brushes are replaced as a matter of course, so the item is essentially a fully refurbished as new item but opened out to a 62mm bore, 5mm larger than the original spec. Usual gains of 5-10 BHP are to be expected (depending on vehicle spec)*

Please note: These units are sold on an exchange basis, and a £50.00 surcharge is included in the price. Once you have received your enlarged throttle body, we will require your old one to be sent to us, and your surcharge will be refunded.

*Although we cannot guarantee specific gains from vehicle to vehicle, we have had feedback from previous customers who have used these on highly tuned engines, some of which gained up to 20 BHP in the midrange following the fitment of one of the units!


£345.00 (410.55)

Oil Sump & Gasket - 90501528

Oil Sump to fit the following:

NOVA 1983-1992: 12S 12ST 12NV C12NZ 13S 13SB 13NB 14NV C14SE C14NZ E16SE C16SE & C16NZ engines

ASTRA 1985-1992 (Mk2): 12SOHC 12STOHC 13N 13NB 13S & 14NV engines

CORSA B 1993-2001: C12NZ X12SZ C14NZ X14SZ C14SE C14SEL X14XE engines

ASTRA F 1992-1998 (Mk3): C14NZ X14NZ C16NZ C14SE X16SZ X16SZR & C16SE engines

ASTRA G 1998-2005 (Mk4): X16SZR engine

CAVALIER MK2 1982-1988: 13N & 13S engines

CAVALIER MK3 1989-1995: 14NV 16SV E16NZ C16NZ & X16SZ engines

VECTRA B 1996-2001: X16SZR engine (except check control)

Brand new item.

Comes with free gasket.

£80+ RRP.

Please double check the part number with us if you are unsure, or with a main dealer before ordering, as we cannot be held responsible for wrongly ordered parts!


£40.84 (48.60)

Set of Spark Plugs - 91132006

Vauxhall Spark Plugs to fit the following:

Corsa B up to 2000 - 1.0, 1.2, 1.4 & 1.6 petrol

Corsa C 2001-2006 - Petrol models (Excl. Twinport)

Corsa Van 2001-2006 - 1.2 petrol

Tigra A 94-01 - All models

Astra F 92-97 - All models with twin electrodes

Astra G 98-04 - All models inc van except 2.2 (Excl. Twinport)

Zafira A 98-05 - All models except 2.2 (Excl. Twinport)

Vectra B up to 2002 - All models except 2.2

Calibra - 2.0, 2.5

Cavalier MK3 89-95 - 1.8, 2.0, 2.5

Omega - 2.0, 2.2, 2.5, 3.0

Combo 2002 on - 1.6 petrol

Please double check the part number with us if you are unsure, or with a main dealer before ordering, as we cannot be held responsible for wrongly ordered parts!


£32.95 (39.21)

Throttle Body 1.8 - 9196357

Throttle Body to fit the following:

Astra G (98-04): Z18XE & Z18XEL engines

Astra H (04-10): Z18XE engine

Corsa C (01-06): Z18XE engine

Meriva A (03-10): Z18XE engine

Omega B (1994-2003): Y22XE & Z22XE engines

Signum (03- ): Z18XE engine

Tigra B (04- ): Z18XE engine

Vectra B (96-01): Z18XE & Z18XEL engines

Vectra C (2002- ): Z18XE & Z18XEL engines

Zafira A (98-05): Z18XE & Z18XEL engines


£275.75 (328.14)

Out of stock

Diesel Crankshaft Pulley - 55351711

Diesel Crankshaft Pulley suitable for:

• Astra G and Zafira A 1998-2004 with:

X20DTL Y20DTL Y20DTH Engines with manual transmission and without Air Conditioning

and Y20DTH Engines without Air Conditioning

and Y20DTH Y20DTL engines with automatic transmission from chassis numbers 32000001, 35000001, 36000001, 38000001 and 3H000001

and Y20DTH Y20DTL engines with air conditioning from chassis numbers 32000001, 35000001, 36000001, 38000001 and 3H000001

• Frontera B 1999-2004 and Omega 1994-2003 with X22DTH Y22DTH engines

• Signum and Vectra C 2002- with Y20DTH Y22DTR engines

• Vectra B 1996-2001 with X20DTL X20DTH Y20DTH engines and with Air Conditioning and Y22DTR engines

**Please double check the part number on your old unit, or with a main dealer before ordering, as we cannot be held responsible for wrongly ordered parts!


£76.60 (91.15)

Out of stock