S3975 12V 2.5kW Starter Motor Fits Porsche Cayenne, Porsche Macan
£122.07 – £141.52Price range: £122.07 through £141.52
Compare the S3975 12V 2.5kW starter motor from Sahibs Auto Electrics with the unit currently fitted. Listed applications include selected Porsche Cayenne, Porsche Macan models. Identification references include Lucas LRS03975, Bosch 1139021. Its listed 12V 2.5kW rating provides an electrical matching point for your existing unit. Check the 10-tooth pinion, connections and mounting arrangement. Check the current condition options and availability before purchase. Match the exact engine and production details before ordering. Buy your S3975 replacement starter motor online from Sahibs Auto Electrics for UK delivery or Click & Collect.
Product Specification
| Description | Value |
|---|---|
| KW | 2.5 kW |
| Volt | 12 V |
| Rotation | Clockwise |
| Teeth | 10 qty |
| Oil Sealed | No |
| Insulated Return | No |
| Waterproof | No |
| Wet Clutch | No |
| Weight | 3.95 Kg |
Cross Reference
| Reference Number | Brand |
|---|---|
| DYS3975 | Dyno Electrics |
| 402330311 | Euro Car Part |
| UD04329(SEG)S | AS-PL |
| 1139021 | BOSCH |
| 1139022 | BOSCH |
| 0001139022-R | BOSCH |
| 1986S00840 | BOSCH |
| F00E100571 | BOSCH |
| F032116929 | BOSCH |
| SR0482N | BOSCH |
| 116929 | CARGO |
| 94860421400 | PORSCHE |
| 94860421401 | PORSCHE |
| 948604214AX | PORSCHE |
| CGB-55137 | AINDE |
| S100468 | BTS TURBO |
| S101279 | BTS TURBO |
| S104782 | BTS TURBO |
| CST10588AS | CASCO |
| CST10588GS | CASCO |
| 3262 | CEVAM |
| 311412102 | DRI |
| 12766 | EAI |
| 25-5137 | ELSTOCK |
| 11090388 | EUROTEC |
| H5010977 | HOFFER |
| 10010588AV | ITAB AUTOMOTIVE |
| 10010588OV | ITAB AUTOMOTIVE |
| STB9021 | KRAUF |
| 256100 | KUHNER |
| LRS03975 | LUCAS |
| LRS3975 | LUCAS |
| 5010977 | MEAT & DORIA |
| IR1101 | PROTECH |
| 480.517.102.010 | PSH |
| 480.517.102.018 | PSH |
| 480.517.102.210 | PSH |
| 480.517.102.280 | PSH |
| 480.517.102.608 | PSH |
| 20401885BN | REAL |
| 20401885OE | REAL |
| 6010588 | SANDO |
| 6010588.1 | SANDO |
| S12BH0945 | SIDAT |
| MAV125880 | SIOM |
| MAV125880A | SIOM |
| PO9017 | SNRA |
| 766ST21 | STARTCAR |
| ST02100 | TMI |
Vehicle Applications
| Brand | Model | Engine | Engine Code | Series | Model Type | Type | Year |
|---|---|---|---|---|---|---|---|
| PORSCHE | Cayenne | 3.6 (3604ccm) Petrol | MCURA | 92A | 2014 - 2018 | ||
| PORSCHE | Cayenne | 3.6 (3604ccm) Petrol | MCXZA | 92A | 2015 - 2018 | ||
| PORSCHE | Cayenne | 4.8 (4806ccm) Petrol | M4852 | 92A | 2010 - 2014 | ||
| PORSCHE | Cayenne | 4.8 (4806ccm) Petrol | M4802 | 92A | 2010 - 2014 | ||
| PORSCHE | Cayenne | 4.8 (4806ccm) Petrol | M4802 | 92A | 2012 - 2014 | ||
| PORSCHE | Cayenne | 4.8 (4806ccm) Petrol | M4852 | 92A | 2012 - 2014 | ||
| PORSCHE | Cayenne | 4.8 (4806ccm) Petrol | MCFTB | 92A | 2014 - 2018 | ||
| PORSCHE | Cayenne | 4.8 (4806ccm) Petrol | MCYXA | 92A | 2015 - 2018 | ||
| PORSCHE | Macan | 3.0 (2997ccm) Petrol | MCTMA | 4 | 95B | 2014 - 2018 | |
| PORSCHE | Macan | 3.0 (2997ccm) Petrol | MDCNA | 4 | 95B | 2015 - 2018 | |
| PORSCHE | Macan | 3.6 (3604ccm) Petrol | MCTLA | 4 | 95B | 2014 - 2018 | |
| PORSCHE | Macan | 3.6 (3604ccm) Petrol | MDHKA | 4 | 95B | 2016 - 2018 |
Description
S3975 Replacement Starter Motor
For a S3975 starter motor enquiry, use Lucas reference LRS03975 alongside the vehicle and original unit details. The listed electrical rating is 12V 2.5kW. A starter motor turns the engine during starting; the electrical rating and mechanical engagement must suit the application. Applications include selected Porsche Cayenne 3.6 Petrol variants.
Key Features and Benefits
- 12V electrical system: match the vehicle voltage before selecting a unit.
- 2.5kW power: compare the listed rating with the original starter motor.
- 10-tooth pinion: compare gear engagement and pinion position.
- Clockwise rotation: check the specified direction before fitting.
Compatible Vehicles and Applications
- Porsche Cayenne 3.6 Petrol – selected applications 2014–2018 (engine code MCURA).
- Porsche Macan 3.0 Petrol – selected applications 2014–2018 (engine code MCTMA).
These are selected applications, not the complete fitment list. Check the detailed vehicle compatibility table, engine code and production year, then compare the original unit before ordering.
OE Numbers and Cross-Reference Information
The following cross-reference numbers are associated with S3975. Compare them with the original unit and technical specifications; a number match alone does not establish vehicle compatibility.
1139021, 1139022, 0001139022-R, 1986S00840, F00E100571, F032116929, SR0482N, LRS03975, LRS3975
The full manufacturer cross-reference and OE listings are available elsewhere on this page. Confirm whether a number is an OE or aftermarket reference when comparing the original unit.
When Should You Replace Your Starter Motor?
Failure to crank, clicking during a start request or intermittent cranking can indicate a starting-system problem. A weak battery, poor connections or control-circuit faults can produce similar symptoms; test the system before replacing the starter motor.
Why Buy from Sahibs Auto Electrics?
Sahibs Auto Electrics is a UK automotive electrical parts specialist supplying alternators and starter motors. Ask for help identifying S3975 using the existing part number and vehicle details. Check the current condition options and availability before purchase. Buy online for UK delivery or Click & Collect, checking the current order arrangements.
Frequently Asked Questions
Will S3975 fit my Porsche Cayenne?
Porsche Cayenne 3.6 Petrol (2014–2018) is a listed application. Confirm the engine code and original unit configuration in the detailed fitment table.
Does S3975 replace Lucas LRS03975?
Lucas LRS03975 is a listed identification reference. Compare it with the original unit and specifications; a cross-reference does not guarantee compatibility by itself.
What specifications are listed for S3975?
The listed details include 12V, 2.5kW power, 10 pinion teeth, clockwise rotation. Compare the complete specifications on this page with the unit being replaced.
Is S3975 new or remanufactured?
Check the current product condition selection for S3975. Confirm the supplier and availability of the option you want before completing the order.
What should I compare before ordering S3975?
Compare 12V compatibility, 2.5kW power, 10 pinion teeth, rotation, mounting and electrical connections with the original starter.
Does clicking prove the starter motor has failed?
No. Battery voltage, wiring and control-circuit faults can also cause clicking or no cranking. Have the starting system tested before choosing a replacement.






