12V 2KW 10T Starter Motor D7R53.Contact

This 12V   2KW  starter motor is designed for selected Opel, Renault commercial vehicles and diesel engines. It features a 10-tooth drive gear and reference number D7R53. Please confirm compatibility before ordering.

Overview of the D7R53.Contact Starter Motor

this application owners replacing a tired starter will find the D7R53.Contact a direct fit: a 12V, 2 kW reduction-gear unit with a pre-engaged solenoid, produced to the original flange and terminal layout.

Cranking load varies with temperature, battery condition and engine condition. A healthy starter has margin for all three; a worn one turns the engine just slowly enough that the control unit hesitates and the driver notices long, laboured starts.

Technical Summary

• Rated voltage: 12V
• Rated output: 2 kW
• Pinion: 10 teeth
• Type: reduction gear starter with pre-engaged solenoid
• Net weight: approximately 3.8 kg
• Condition: new, direct replacement for the original unit

A 12V 2 kW rating is the output the motor can hold while cranking, not a peak figure. It is sized so the engine reaches starting speed on the first or second revolution, which is what makes a healthy start feel immediate.

The reduction gearset lets the motor run at high speed while the pinion turns slowly with high torque, which is why the unit stays compact enough for a crowded engine bay.

Reference Numbers and Cross References

The starter is supplied against the following references, which help identify it against the unit already fitted to the vehicle:

• D7R53
• 112475
• 4414689
• 4417615
• D7R53.Contact

Several numbers in this list belong to complete starter assemblies while others refer to the motor only. A visual check of the drive end protects against the most common ordering error. This starter is listed with 5 references in total.

Matching the Unit to the Vehicle

This starter family was fitted to a range of the manufacturer applications, and the part number changed as engines and flywheels were revised. The unit listed here covers the references above and is a direct replacement where those numbers match. Because the D7R53.Contact reuses the original bolts and connectors, no adapters are needed on this application.

If the number on the old unit falls outside the list above, send the engine code and a photograph of the drive end before ordering. A starter with the correct housing but the wrong pinion will grind on the first attempt and can chip the ring gear.

Failure Causes

Heat is the underlying cause in most cases. The starter sits close to the exhaust, and after a hot shutdown the solenoid winding and brush plate soak in heat with no airflow. Resin hardens, springs lose tension and the contact oxidises.

The brush plate is the second common failure point. Brushes shorten gradually, spring pressure falls, and contact becomes intermittent. Cranking speed drops a little every week until the engine refuses to start on a cold morning. Owners of this application should treat the D7R53.Contact reference list as a starting point, not the final answer.

Symptoms of a Failing Starter

• Cranking that sounds normal but takes longer than it used to
• Several attempts needed before the motor engages
• Black carbon dust inside the drive end housing
• Voltage dip that dims the lights during cranking
• Starter that responds to a tap on the housing but not to the key alone

Rule out the simple causes first: battery capacity under load, corroded terminals and the signal wire at the solenoid. A starter that clicks with a known-good battery and a clean signal circuit has an internal contact fault. Owners of this application should treat the D7R53.Contact reference list as a starting point, not the final answer.

What to Check Before Fitting

• Battery capacity under load, not just open-circuit voltage
• Terminal clamps and the main cable lug for corrosion or heat marks
• Earth strap between engine and chassis
• Ring gear teeth, visible through the starter aperture
• Key switch and signal wire voltage at the solenoid terminal

Fitting a new starter onto a worn ring gear or a marginal battery shortens its life. Check the simple items first, then fit the unit once and correctly.

Installation Notes

Raise and support the vehicle where the starter is reached from below, disconnect the battery, and detach the main cable and signal wire. Note the cable positions before removal so the replacement goes back the same way.

Clean the mounting face and inspect the ring gear teeth through the starter aperture. Fit the replacement with the original bolts, reconnect the cables in the same order and tighten the main terminal firmly. Crank the engine briefly and listen for clean engagement and release. On this application installations, access to the D7R53.Contact usually decides how long the job takes.

Quality Control and Supply from Hejian Nuojin Auto Parts Co., Ltd.

Each production batch is inspected for housing dimensions, terminal integrity and pinion fit, and every starter is bench tested before it is boxed. Units ship in neutral cartons with foam protection, which keeps freight damage low and allows distributors to label stock under their own brand.

Common references are kept in stock for fast dispatch, volume orders are delivered in around 30 days and each starter carries a one-year warranty against manufacturing defects.

Frequently Asked Questions

Is a 12V and a 24V starter interchangeable?

No. The voltage rating must match the vehicle system; fitting the wrong unit will damage the starter and the wiring.

How do I confirm the starter matches my vehicle?

Compare the original part number first, then check the pinion tooth count and the terminal connector layout. The vehicle model alone is not enough, because more than one starter was fitted during production.

Does this starter come with the solenoid?

Yes. The unit is supplied complete with its solenoid, as shown in the product photographs. Mounting bolts are not included.

Does the starter need any maintenance?

No routine maintenance is required. Keeping the battery, terminals and earth connections clean is what extends starter life in practice.

Product Specifications

Product Type: Starter Motor

Rated Voltage: 12V

Rated Power: 2KW

Number of Teeth: 10T

Main Part Number: D7R53

OEM Number:4417916、R1530112.CST15169、CST15169AS、CST15169ES，944280801080、MO0017MA、MQS1207， 8252889、8EA737882001，HCP2013，CS1207，8EA011610121，CST15169GS、CST151690S, CST15169RS，DRS3838,R1530113，42455954，STV1207AB、STV1207BA,STV1207RD，STV1207YJ、STV1207ZL、STV9207BA，063721207010、359001400170、944280186110，STV9207YJ，MRS80108，J5211088，8200018818 8200106788.8200130624.8200225336，2330000Q0B，2330000Q0C.2330000QAD，220136，220526，STV1207RB、STV1207WA，2330000QAF、2330000QAV，D7R53B、D7R56、D7RP204，1202206、1202208、4404221、4411319、4414689，4417916、4506175、9112221、91123334，4415443.91167635、9201825、93160667、93169461，93169462.93181256、93190956、93859444.R1040043，7701056687.7711134330.7711134931.7711368323，8200634602，8200634603，S120E006，438158.458210、726031.D7G11、D7R34、D7R53.STR4703，438085，438170、455954、458172.7711368323

Product Number: NJ15246

Condition: New

Net Weight: 3.8KG

Warranty: 1 year

Packaging: Neutral kraft paper packaging

Compatibility

Please compare the original part number, mounting holes, gear teeth and connector configuration before ordering.

Package Contents

1 x Starter Motor