Service Parts

We stock a range of service items for your Ford Escort Rs Cosworth

Power Steering Belt for 2WD Sierra Cosworth

Gates

Fits:All 2WD Ford Sierra RS CosworthsThis is a brand new belt that will fit all 2WD Ford Cosworth YB power steering pulleys. This is the same belt we would use on any power YB that we build or work on. Its made by Gates, the same company who make them for Ford in the first place.

£6.00£5.00 (ex. VAT)

Escort T28 Air Conditioning Belt

Motorsport Developments

1x Genuine Gates Powergrip Airconditioning Pump Drivebelt.To fit all Small Turbo Ford Escort RS Cosworths.YB EEC 4 Escort Cosworth Air Conditioning belt. (NOT WEBER)This is a brand new belt that will fit all Ford Cosworth YB T28 engines. This is the same belt we would use on any power YB that we build or work on. Its made by Gates, the same company who make them for Ford in the first place.

£10.00£8.33 (ex. VAT)

Champion QC59C Racing Spark Plug Each

Champion

Champion Racing Spark Plug Each Cosworth QC59CChampion Racing spark plug are for Cosworth engines with high bhp for trackday and competition use.The colder (harder) Champion Racing spark plug is designed to work at higher temps or in a more hostile environment.The lower the champion spark plug part number, the colder the plug.These are priced per spark plug and requires 4 per Cosworth engine.For Sierra Cosworth YB red and green top engine, YBP Escort Cosworth small turbo silver top engine, Escort Cosworth YBT T35 big turbo blue top engine.Fits: Escort RS Cosworth, Sierra RS Cosworth  3 door, Sapphire RS Cosworth 2WD, Sapphire RS Cosworth 4WD, Sierra RS500 Cosworth.

£11.40£9.50 (ex. VAT)

Denso Iridium IK27 Spark Plug (1 plug)

Denso

Suitable for all Cosworth YB 250 > 500 BHP and CVH (all power levels)Improved Horse Power Get more power with an optimal combustion cycle.IRIDIUM POWER has a low required voltage and a high ignitability, resulting in less misfiring and no spark, the outcome being a dramatic improvement in combustion. Engine output is thus increased. The findings of a bench test using a motorcycle engine to show the improved combustion from IRIDIUM POWER is shown on the below. Compared to normal plugs, a 0.5ps (1.4%) improvement is seen in output at 110km/h.Improved Acceleration Increased response and acceleration performance.IRIDIUM POWER best demonstrates its performance improvement during acceleration.IRIDIUM POWER has a 0.4 mm diameter iridium center electrode and a specially shaped ground electrode. These features combine to achieve higher ignitability and require lower spark voltage than ever before. This enables high-response driving with fewer misfires than under higher required voltage spark conditions, and fewer misfires when ignitability is difficult. As a result, acceleration improves in comparison with normal plugs.Improved Fuel Economy Even during idling ignition is assured, with less fuel consumption and less noise.The good ignitability from the fine electrode (0.4mm) of IRIDIUM POWER draws out much more performance from the engine. Comparing a normal plug (W20FS-U) with an IRIDIUM POWER(IWF22) on a 2 cycle 50cc engine, fuel consumption improved from 41.74km/L -> 43.69km/L, an improvement of about 5%.Note: Mileage measured using a chassis dynamo; actual driving results under normal conditions may vary.

£11.50£9.58 (ex. VAT)

YB Cambelt Tensioner

1x Genuine INA tensionerTo fit all Ford Sierra & Escort RS Cosworths.This is a brand new  tensioner that will fit all Ford Cosworth YB engines. This is the same tensioner we would use on any power YB that we build or work on.The tensioner by INA the same companies who make them for Ford in the first place.

£37.50£31.25 (ex. VAT)

YB Cambelt Tensioner

1x Genuine INA tensionerTo fit all Ford Sierra & Escort RS Cosworths.This is a brand new  tensioner that will fit all Ford Cosworth YB engines. Th...
£37.50

Denso Iridium IK31 Spark Plugs

Denso

Suitable for All Cosworth YB 500 > 650 BHPImproved Horse Power Get more power with an optimal combustion cycle.IRIDIUM POWER has a low required voltage and a high ignitability, resulting in less misfiring and no spark, the outcome being a dramatic improvement in combustion. Engine output is thus increased. The findings of a bench test using a motorcycle engine to show the improved combustion from IRIDIUM POWER is shown on the below. Compared to normal plugs, a 0.5ps (1.4%) improvement is seen in output at 110km/h.Improved Acceleration Increased response and acceleration performance.IRIDIUM POWER best demonstrates its performance improvement during acceleration.IRIDIUM POWER has a 0.4 mm diameter iridium center electrode and a specially shaped ground electrode. These features combine to achieve higher ignitability and require lower spark voltage than ever before. This enables high-response driving with fewer misfires than under higher required voltage spark conditions, and fewer misfires when ignitability is difficult. As a result, acceleration improves in comparison with normal plugs.Improved Fuel Economy Even during idling ignition is assured, with less fuel consumption and less noise.The good ignitability from the fine electrode (0.4mm) of IRIDIUM POWER draws out much more performance from the engine. Comparing a normal plug (W20FS-U) with an IRIDIUM POWER(IWF22) on a 2 cycle 50cc engine, fuel consumption improved from 41.74km/L -> 43.69km/L, an improvement of about 5%.Note: Mileage measured using a chassis dynamo; actual driving results under normal conditions may vary.

£44.00£36.67 (ex. VAT)

YB Cambelt

Gates

 1x Genuine Gates Powergrip HTD cam beltTo fit all Ford Sierra & Escort RS Cosworths.This is a brand new cam belt that will fit all Ford Cosworth YB engines. This is the same belt we would use on any power YB that we build or work on. The belt is made by Gates and is the best quality HTP powergrip.

£62.00£51.67 (ex. VAT)

YB Cambelt

 1x Genuine Gates Powergrip HTD cam beltTo fit all Ford Sierra & Escort RS Cosworths.This is a brand new cam belt that will fit all Ford Cosworth ...
£62.00

HT Leads Set for 2WD & Early 4WD Models

Motorsport Developments

Fits:All Sierra Cosworth Red Top Engines.These leads fit the non catalyst model of Sierra Cosworth and as such will fit all 2WD Sierra Cosworths and the early red top 4x4 Sierra Cosworth. The correct system is easily identified as the distributor cap is angled and points the lead entry points backwards towards the rear of the engine bay.Please remember, we only supply and fit parts here that are tried and tested by us and are proved to work properly. There are many cheaper HT lead sets on the market and unfortunately we remove and throw lots of them away in our workshop on an almost weekly basis and have been doing so since we started tuning these Cosworths years ago as they do not have the interference suppression qualities that are required to ensure the poor quality Cosworth wiring looms do not induce interference from them.The fact some of these cheaper leads have well known household names makes no difference, many of them are designed for modern cars with great interference suppression built into the looms and components. Take care, buy right, buy once...

£79.50£66.25 (ex. VAT)

HT Leads Set for All Catalyst Models

Motorsport Developments

A full set of 5 HT leads -  4 x spark plugs and 1 coil leadFits:Late model Green Top Sierra 4x4 CosworthsLarge Turbo Escort CosworthsThese HT leads fit all large turbo Escort Cosworth as well as the late green top 4x4 Sierra Cosworths. The correct system is easily identified as the distributor cap is pointing upwards with the HT leads connecting into the top of it.Please remember, we only supply and fit parts here that are tried and tested by us and are proved to work properly. There are many cheaper HT lead sets on the market and unfortunately we remove and throw lots of them away in our workshop on an almost weekly basis and have been doing so since we started tuning these Cosworths years ago as they do not have the interference suppression qualities that are required to ensure the poor quality Cosworth wiring looms do not induce interference from them.The fact some of these cheaper leads have well known household names makes no difference, many of them are designed for modern cars with great interference suppression built into the looms and components. Take care, buy right, buy once...

£82.00£68.33 (ex. VAT)

HT Plug Leads For Wasted Spark Ignition

Motorsport Developments

Fits:All Ford Sierra & Escort RS Cosworths that have been converted to run wasted spark ignition systemsA full set of 4 HT leads.These HT leads are available in Blue and BlackThese HT leads are significantly longer than most wasted spark HT lead sets out there as we specified a lead length to suit the Cosworth - we are the only people who make wasted spark ignition kits for Cosworths and thus know exactly where the components need to be fitted for it all to work properly.Beware cheaper but shorter leads...Please remember, we only supply and fit parts here that are tried and tested by us and are proved to work properly. There are many cheaper HT lead sets on the market and unfortunately we remove and throw lots of them away in our workshop on an almost weekly basis and have been doing so since we started tuning these Cosworths years ago as they do not have the interference suppression qualities that are required to ensure the poor quality Cosworth wiring looms do not induce interference from them.The fact some of these cheaper leads have well known household names makes no difference, many of them are designed for modern cars with great interference suppression built into the looms and components. Take care, buy right, buy once...

£82.00£68.33 (ex. VAT)

YB Cambelt & Tensioner Kit

Gates

 1x Genuine Gates Powergrip HTD cam belt1x Genuine INA tensionerTo fit all Ford Sierra & Escort RS Cosworths.This is a brand new cam belt & tensioner that will fit all Ford Cosworth YB engines. This is the same belt & tensioner we would use on any power YB that we build or work on. The belt is made by Gates and is the best quality HTP powergrip, and the tensioner by INA the same companies who make them for Ford in the first place.

£96.50£80.42 (ex. VAT)

YB Cambelt & Tensioner Kit

 1x Genuine Gates Powergrip HTD cam belt1x Genuine INA tensionerTo fit all Ford Sierra & Escort RS Cosworths.This is a brand new cam belt & te...
£96.50