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Auto parts section for Transmission

Gearbox car spares for Top Car brand
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Transmission car parts - all important information about operating method, mounting, diagnostics and service life

A gearbox is an assembly which is designed to convert and transfer torque from the engine to the drive or propeller shafts, thus ensuring the rotation of the wheels.

It is also used to engage the reverse gear.

Design of a gearbox

A manual gearbox consists of shafts and gears with different numbers of teeth. In modern assemblies, gears of adjacent shafts are constantly in contact. Engaging the required gear is carried out with the help of special synchronisers. The required synchroniser is activated by the corresponding shift fork which is connected via arms and joints to the gear lever located in the cabin.

An automatic gearbox comprises gears of various sizes which form an epicyclic gear train. Clutch packs are responsible for the engagement of the required gears. Their connection is ensured by pumping the working fluid into the corresponding channels of the hydraulic unit. Torque from the engine is transferred to the gearbox with the help of a hydraulic torque converter.

A continuously variable transmission is stepless. Its main working elements are cone pulleys located in pairs on the input and output shafts with a tensioned steel belt around them. Pulleys can come together or separate, changing their working diameter this way and, consequently, the transmission ratio. Their design also has an epicyclic gear train responsible for driving in reverse. The movement of the pulleys is ensured by a hydraulic torque converter, an electronically controlled multi plate clutch, or other mechanisms.

Maintenance advice

  • Do not ignore oil change intervals. Check the oil level regularly. Contaminated lubricant along with an insufficient amount thereof cause premature wear and tear of moving parts and the gradual deterioration of the gearbox.
  • It is important to ensure proper clutch operation in vehicles with a manual transmission. If dampers are faulty, loads on the gearbox increase significantly.
  • Avoid rough acceleration and braking. They have a devastating effect on the components of the transmission .
  • It is not recommended to use a car with an automatic transmission for towing other vehicles. The gearbox may overheat and fail.
  • During wintertime, you should warm up your gearbox thoroughly before setting off if you have an automatic transmission.

Malfunction symptoms

If issues occur when shifting gears in manual transmission, they might indicate worn-out synchronisers or gears, an insufficient amount of oil in the assembly, or a faulty selector rod, cable, or lever. Worn-out sleeves and splines or a failing rod or fork can be accompanied by spontaneous disengagement of the clutch. A worn input shaft bearing usually produces noises when in neutral. In vehicles with an automatic transmission, the friction plates and splines of the turbine wheel can wear out, the blades of the torque converter wheel may break and valves can become clogged. These malfunctions cause slipping. Jerking during acceleration in vehicles with a CVT might be a consequence of failing oil pump valves. Humming or growling noises indicate worn-out bearings.

Malfunction causes

The wear and tear of bearings, splines and gears, clogged passages of the hydraulic unit, stuck valves, and worn-out belts are the most frequent consequences of not changing your oil on time. Accumulated dirt clogs the channels of the hydraulic unit and forms carbon deposits on the components that then act as an abrasive. Improper use of your vehicle might lead to the deterioration of ball joints and bearings and also cause the gearbox to overheat.

Autodoc.co.uk: Only high-quality automotive products

You can always buy gearbox components for your vehicle in our online shop. Thanks to a wide product range, you’ll definitely find the necessary parts regardless of the transmission type your vehicle is equipped with.

Replacement of Gearbox car parts: Video repair guide

Top 10 of best sellers from the Gearbox section
Recommended spare parts from the Transmission section. These are the sales hits. Buy our best sellling items or discover a vast selection of other attractive offers.
-21%
Parts Kit, automatic transmission oil change 1087.298.365 buy 24/7!
ZF GETRIEBE Parts Kit, automatic transmission oil change
Article number: 1087.298.365
£ 321,57
incl. 20% VAT, Delivery
  • Alternative Repair Kit: 1087.298.364
  • Content [litre]: 7
  • Specification: ZF LifeguardFluid 8
  • ZF GETRIEBEParts Kit, automatic transmission oil change
  • Item number1087.298.365
  • Manufacturer's suggested retail price£ 407,05
  • Our price £ 321,57
  • Condition  New
Details
-21%
Automatic Transmission Oil 39071 buy 24/7!
FEBI BILSTEIN Automatic Transmission Oil
Article number: 39071
£ 59,35

(£ 11,87 for 1 litre)

incl. 20% VAT, Delivery
  • Colour: Yellow
  • Content [litre]: 5
  • Specification: VW TL 52 182, Porsche DCT, MB 236.24, DCTF-1, Renault EDC 6-speed, Dia Queen SSTF-I, Pentosin FFL-3, MB 236.21, PSA DCS 6-speed, BMW Drivelogic 7-spe, MTF-LT-5, Ford WSS-M2C936-A
  • Weight [kg]: 4,595
  • Observe service information
  • FEBI BILSTEINAutomatic Transmission Oil
  • Item number39071
  • Manufacturer's suggested retail price£ 75,13
  • Our price £ 59,35
  • Condition  New
Details
-21%
Transmission Oil 29934 buy 24/7!
FEBI BILSTEIN Transmission Oil
Article number: 29934
£ 11,46

(£ 11,46 for 1 litre)

incl. 20% VAT, Delivery
  • Content [litre]: 1
  • Colour: Red
  • Weight [kg]: 0,949
  • Observe service information
  • FEBI BILSTEINTransmission Oil
  • Item number29934
  • Manufacturer's suggested retail price£ 14,50
  • Our price £ 11,46
  • Condition  New
Details
-21%
Flywheel 415 0557 10 buy 24/7!
LuK Flywheel
Article number: 415 0557 10
£ 388,05
incl. 20% VAT, Delivery
  • Number of mounting bores: 6
  • Transmission Type: Manual Transmission
  • Supplementary Article / Info 2: without screw set, Dual-mass flywheel without friction control plate
  • Product line: DMF
  • Supplementary Article / Supplementary Info: without pilot bearing
  • Max. Sideplay [mm]: 2,9
  • Max. Clearance Angle [Degree]: 18
  • Number of teeth (finding the max. clearance angle): 6
  • LuKFlywheel
  • Item number415 0557 10
  • Manufacturer's suggested retail price£ 491,20
  • Our price £ 388,05
  • Condition  New
Details
-21%
Flywheel 415 0431 10 buy 24/7!
LuK Flywheel
Article number: 415 0431 10
£ 296,15
incl. 20% VAT, Delivery
  • Number of mounting bores: 6
  • Transmission Type: Manual Transmission
  • Supplementary Article / Info 2: without screw set, Dual-mass flywheel with friction control plate
  • Product line: DMF
  • Supplementary Article / Supplementary Info: without pilot bearing
  • Max. Sideplay [mm]: 2,9
  • Max. Clearance Angle [Degree]: 18
  • Number of teeth (finding the max. clearance angle): 7
  • LuKFlywheel
  • Item number415 0431 10
  • Manufacturer's suggested retail price£ 374,87
  • Our price £ 296,15
  • Condition  New
Details
-21%
Parts Kit, automatic transmission oil change 1087.298.369 buy 24/7!
ZF GETRIEBE Parts Kit, automatic transmission oil change
Article number: 1087.298.369
£ 246,52
incl. 20% VAT, Delivery
  • Alternative Repair Kit: 1087.298.368
  • Content [litre]: 7
  • Specification: ZF LifeguardFluid 8
  • ZF GETRIEBEParts Kit, automatic transmission oil change
  • Item number1087.298.369
  • Manufacturer's suggested retail price£ 312,05
  • Our price £ 246,52
  • Condition  New
Details
-21%
Parts Kit, automatic transmission oil change 1071.298.027 buy 24/7!
ZF GETRIEBE Parts Kit, automatic transmission oil change
Article number: 1071.298.027
£ 211,44
incl. 20% VAT, Delivery
  • Alternative Repair Kit: 1071.298.039
  • Content [litre]: 7
  • Specification: ZF LifeguardFluid 8
  • Additionally required articles (article numbers): 1071.298.042
  • ZF GETRIEBEParts Kit, automatic transmission oil change
  • Item number1071.298.027
  • Manufacturer's suggested retail price£ 267,64
  • Our price £ 211,44
  • Condition  New
Details
-21%
Switch, reverse light 40998 buy 24/7!
FAE Switch, reverse light
Article number: 40998
£ 13,16
incl. 20% VAT, Delivery
  • Number of Poles: 3
  • Housing Colour: Green
  • Thread Size: M 14x1,5
  • FAESwitch, reverse light
  • Item number40998
  • Manufacturer's suggested retail price£ 16,66
  • Our price £ 13,16
  • Condition  New
Details
-21%
Oil Cooler, automatic transmission 8MO 376 722-311 buy 24/7!
HELLA Oil Cooler, automatic transmission
Article number: 8MO 376 722-311
£ 202,71
incl. 20% VAT, Delivery
  • Supplementary Info: BEHR HELLA SERVICE *** PREMIUM LINE ***
  • Length [mm]: 632
  • Width [mm]: 54
  • Depth [mm]: 16
  • Version: produced by BEHR
  • HELLAOil Cooler, automatic transmission
  • Item number8MO 376 722-311
  • Manufacturer's suggested retail price£ 256,60
  • Our price £ 202,71
  • Condition  New
Details
-21%
Transmission Oil 36449 buy 24/7!
FEBI BILSTEIN Transmission Oil
Article number: 36449
£ 50,69

(£ 10,14 for 1 litre)

incl. 20% VAT, Delivery
  • Content [litre]: 5
  • Colour: Red
  • Specification: MB 236.14, ATF 134, DSIH 6P805
  • Weight [kg]: 4,235
  • Observe service information
  • FEBI BILSTEINTransmission Oil
  • Item number36449
  • Manufacturer's suggested retail price£ 64,17
  • Our price £ 50,69
  • Condition  New
Details
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