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Control Trailing Arm TRW JTC3780 OE Ref 31106870978

Key Specification:

EAN: 3322938508999
OEM Reference number: 31106870978
Supplementary Info: with accessories
Material: Aluminium
Fitting Position: Front

See Full Specification

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£ 143.00

£ 108.49 excl. VAT

In Stock

SKU:	TRW JTC3780
Brand	TRW

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Specification
Description
OEM Numbers
Compatibilities
Reviews

EAN

3322938508999

OEM Reference number

31106870978

Supplementary Info

with accessories

Material

Aluminium

Fitting Position

Front

Fitting Position

Front Axle Right

Thread Size

M16x1-5

Weight [kg]

1.999

Length [mm]

376

Control/Trailing Arm Type

Control Arm

paired article number

JTC3779

Control Trailing Arm OE Ref – TRW – OEM 31106870978

This Control Trailing Arm OE Ref is supplied by TRW as a replacement for OEM reference 31106870978. It is intended for use in selected BMW vehicles and designed to meet original equipment fit and function requirements.

The part is identified by manufacturer reference JTC3780 and EAN EAN: 3322938508999, allowing accurate identification and compatibility verification before installation. It is suitable for replacing worn, damaged, or non-functioning components where dependable operation is required.

This component is intended as a like-for-like replacement and should be installed in accordance with manufacturer guidelines. Installation requirements may vary depending on vehicle design and component location.

Fitting position of this Control Trailing Arm is: Front Axle Right
with accessories

Vehicle Compatibility

Compatible with selected BMW models. Detailed compatibility information is available in the Compatibility section of this page.

If this part is not suitable for your vehicle, browse alternative options in our Suspension category.

Reference number(s) comparable with the original spare part number

BMW 31 10 6 870 978 BMW 31 10 6 890 904 BMW 31 10 6 890 906 BMW 6 870 978 BMW 6 890 904 BMW 6 890 906

OE reference number(s) comparable with the original spare part number

BMW

BMW iX3 (G08) From 09/2020

Electric Rear-Wheel Drive 09/2020-, 210 kw, ccm, 286 PS, SUV, Electric Motor , ENG: HA0001N0, HA0

BMW X3 (G01, F97) From 07/2017

xDrive 25 d 4WD 04/2018-, 155 kw, 1995 ccm, 211 PS, SUV, Diesel , ENG: B47 D20 B

xDrive 30 d 4WD 08/2017-06/2020, 195 kw, 2993 ccm, 265 PS, SUV, Diesel , ENG: B57 D30 A

sDrive 18 d Rear-Wheel Drive 04/2018-06/2020, 110 kw, 1995 ccm, 150 PS, SUV, Diesel , ENG: B47 D20 A, B47 D20 B

xDrive M40 i 4WD 08/2017-, 265 kw, 2998 ccm, 360 PS, SUV, Petrol , ENG: B58 B30 A

sDrive 18 d Mild-Hybrid Rear-Wheel Drive 07/2020-, 100 kw, 1995 ccm, 136 PS, SUV, Mild Hybrid , ENG: B47 D20 B, JA1

xDrive 30 d Mild-Hybrid 4WD 07/2020-, 210 kw, 2993 ccm, 286 PS, SUV, Mild Hybrid , ENG: B57 D30 B, JA1

xDrive 30 e Plug-in-Hybrid 4WD 12/2019-, 215 kw, 1998 ccm, 292 PS, SUV, Plug-In Hybrid , ENG: B46 B20 B, B48 B20 A

sDrive 20 i 1.6 Rear-Wheel Drive 12/2017-, 125 kw, 1597 ccm, 170 PS, SUV, Petrol , ENG: B48 B16 A

xDrive 20 d Mild-Hybrid 4WD 04/2020-, 140 kw, 1995 ccm, 190 PS, SUV, Mild Hybrid , ENG: B47 D20 B, JA1

xDrive 20 d 4WD 08/2017-03/2020, 120 kw, 1995 ccm, 163 PS, SUV, Diesel , ENG: B47 D20 A, B47 D20 B

xDrive 30 d 4WD 12/2017-06/2020, 183 kw, 2993 ccm, 249 PS, SUV, Diesel , ENG: B57 D30 A

xDrive 30 i Mild Hybrid 4WD 08/2021-, 180 kw, 1998 ccm, 245 PS, SUV, Mild Hybrid , ENG: B46 B20 B, B48 B20 B

xDrive 30 i 4WD 08/2017-, 185 kw, 1998 ccm, 252 PS, SUV, Petrol , ENG: B46 B20 B, B48 B20 B

xDrive 30 e Plug-in-Hybrid 4WD 12/2019-, 215 kw, 1998 ccm, 292 PS, SUV, Plug-In Hybrid , ENG: B46 B20 B, B48 B20 A

sDrive 18 d Rear-Wheel Drive 04/2018-06/2020, 100 kw, 1995 ccm, 136 PS, SUV, Diesel , ENG: B47 D20 A, B47 D20 B

xDrive 20 d 4WD 08/2017-03/2020, 140 kw, 1995 ccm, 190 PS, SUV, Diesel , ENG: B47 D20 A, B47 D20 B

xDrive 30 i 4WD 08/2017-, 183 kw, 1998 ccm, 249 PS, SUV, Petrol , ENG: B48 B20 B

xDrive M40 d 4WD 08/2018-06/2020, 240 kw, 2993 ccm, 326 PS, SUV, Diesel , ENG: B57 D30 B

sDrive 18 d Mild-Hybrid Rear-Wheel Drive 07/2020-, 110 kw, 1995 ccm, 150 PS, SUV, Mild Hybrid , ENG: B47 D20 B, JA1

xDrive M40 d Mild-Hybrid 4WD 08/2018-, 250 kw, 2993 ccm, 340 PS, SUV, Mild Hybrid , ENG: B57 D30 B, JA1

xDrive 30 d Mild-Hybrid 4WD 07/2020-, 183 kw, 2993 ccm, 249 PS, SUV, Mild Hybrid , ENG: B57 D30 B, JA1

xDrive M40 i Mild Hybrid 4WD 08/2021-, 265 kw, 2998 ccm, 360 PS, SUV, Mild Hybrid , ENG: B58 B30 B

xDrive 25 d 4WD 04/2018-, 170 kw, 1995 ccm, 231 PS, SUV, Diesel , ENG: B47 D20 B

xDrive M40 i 4WD 09/2019-, 285 kw, 2998 ccm, 387 PS, SUV, Petrol , ENG: B58 B30 B

xDrive M40 i 4WD 09/2018-08/2019, 260 kw, 2998 ccm, 354 PS, SUV, Petrol , ENG: B58 B30 A

sDrive 20 i Rear-Wheel Drive 12/2017-, 135 kw, 1998 ccm, 184 PS, SUV, Petrol , ENG: B48 B20 A

xDrive 20 i Mild Hybrid 4WD 08/2021-, 135 kw, 1998 ccm, 184 PS, SUV, Mild Hybrid , ENG: B46 B20 B, B48 B20 A

xDrive 20 i 4WD 12/2017-, 135 kw, 1998 ccm, 184 PS, SUV, Petrol , ENG: B48 B20 B, B48 B20 A

xDrive 20 d Mild-Hybrid 4WD 04/2020-, 120 kw, 1995 ccm, 163 PS, SUV, Mild Hybrid , ENG: B47 D20 B, JA1

BMW X3 Van (G01) From 07/2017

xDrive 30 d 4WD 08/2017-, 195 kw, 2993 ccm, 265 PS, SUV Van, Diesel , ENG: B57 D30 A

sDrive 18 d Rear-Wheel Drive 04/2018-, 110 kw, 1995 ccm, 150 PS, SUV Van, Diesel , ENG: B47 D20 A, B47 D20 B

xDrive 30 i 4WD 08/2017-, 185 kw, 1998 ccm, 252 PS, SUV Van, Petrol , ENG: B48 B20 B

xDrive M40 i 4WD 09/2019-, 285 kw, 2998 ccm, 387 PS, SUV Van, Petrol , ENG: B58 B30 B

xDrive 20 d 4WD 08/2017-, 140 kw, 1995 ccm, 190 PS, SUV Van, Diesel , ENG: B47 D20 A, B47 D20 B

xDrive M40 i 4WD 08/2017-08/2019, 265 kw, 2998 ccm, 360 PS, SUV Van, Petrol , ENG: B58 B30 A

xDrive 20 i 4WD 12/2017-, 135 kw, 1998 ccm, 184 PS, SUV Van, Petrol , ENG: B48 B20 B, B48 B20 A

BMW X4 (G02, F98) From 04/2018

xDrive M40 i 4WD 09/2019-, 285 kw, 2998 ccm, 387 PS, SUV, Petrol , ENG: B58 B30 B

xDrive 30 i 4WD 04/2018-, 183 kw, 1998 ccm, 249 PS, SUV, Petrol , ENG: B48 B20 B

xDrive M40 d Mild-Hybrid 4WD 07/2020-, 250 kw, 2993 ccm, 340 PS, SUV, Mild Hybrid , ENG: B57 D30 B, JA1

xDrive 30 d Mild-Hybrid 4WD 07/2020-, 183 kw, 2993 ccm, 249 PS, SUV, Mild Hybrid , ENG: B57 D30 B, JA1

xDrive 30 d 4WD 04/2018-06/2020, 195 kw, 2993 ccm, 265 PS, SUV, Diesel , ENG: B57 D30 A

xDrive 25 d 4WD 04/2018-, 170 kw, 1995 ccm, 231 PS, SUV, Diesel , ENG: B47 D20 B

xDrive M40 i 4WD 04/2018-08/2019, 260 kw, 2998 ccm, 354 PS, SUV, Petrol , ENG: B58 B30 A

xDrive 20 i 4WD 04/2018-, 135 kw, 1998 ccm, 184 PS, SUV, Petrol , ENG: B48 B20 A

xDrive 30 d 4WD 09/2018-06/2020, 183 kw, 2993 ccm, 249 PS, SUV, Diesel , ENG: B57 D30 A

xDrive M40 i Mild Hybrid 4WD 08/2021-, 265 kw, 2998 ccm, 360 PS, SUV, Mild Hybrid , ENG: B58 B30 B

xDrive 20 d Mild-Hybrid 4WD 04/2020-, 140 kw, 1995 ccm, 190 PS, SUV, Mild Hybrid , ENG: B47 D20 B, JA1

xDrive 25 d 4WD 04/2018-, 155 kw, 1995 ccm, 211 PS, SUV, Diesel , ENG: B47 D20 B

xDrive 30 i Mild Hybrid 4WD 07/2021-, 180 kw, 1998 ccm, 245 PS, SUV, Mild Hybrid , ENG: B46 B20 B, B48 B20 B

xDrive 30 d Mild-Hybrid 4WD 07/2020-, 210 kw, 2993 ccm, 286 PS, SUV, Mild Hybrid , ENG: B57 D30 B, JA1

xDrive M40 d 4WD 04/2018-06/2020, 240 kw, 2993 ccm, 326 PS, SUV, Diesel , ENG: B57 D30 B

xDrive 20 d 4WD 04/2018-03/2020, 140 kw, 1995 ccm, 190 PS, SUV, Diesel , ENG: B47 D20 A, B47 D20 B

xDrive 30 i 4WD 04/2018-, 185 kw, 1998 ccm, 252 PS, SUV, Petrol , ENG: B46 B20 B, B48 B20 B

xDrive M40 i 4WD 04/2018-, 265 kw, 2998 ccm, 360 PS, SUV, Petrol , ENG: B58 B30 A

xDrive 20 i Mild Hybrid 4WD 08/2021-, 135 kw, 1998 ccm, 184 PS, SUV, Mild Hybrid , ENG: B46 B20 B, B48 B20 A

xDrive 20 d Mild-Hybrid 4WD 04/2020-, 120 kw, 1995 ccm, 163 PS, SUV, Mild Hybrid , ENG: B47 D20 B, JA1

xDrive 20 d 4WD 04/2018-03/2020, 120 kw, 1995 ccm, 163 PS, SUV, Diesel , ENG: B47 D20 A, B47 D20 B

Berry
12 Nov, 2025
elderly car so really pleased that the part could be supplied :-) Correct part arrived swiftly - excellent - thank you
Edward & Susan
20 OCT, 2025
These guys were real helpful when I was looking for an EGR valve. Great communications and fast delivery, the valve did exactly as It was meant to do and it was a lot cheaper than everywhere else I looked. I'll be using eAuto Parts again. Top banana.
Charlie
27 AUG, 2025
eAuto Parts made me happy because it only took 2 minutes to order the part and at a very good price, also very quick delivery, will definitely deal with them again.
Adam Taylor
12 May, 2025
Quick enquiry response, easy buying and quick delivery. Quality of goods was good and fitted with no problem (Suzuki bonnet hinges.) recommended.
Helena Garcia
2 January, 2025
The correct part was rapidly identified and located, and was despatched promply to my chosen repairer in time for the work to be done on schedule. Very pleased with the service and will be using eAuto Parts again.