Fast 8JS75C MT Parts
FAST 8JS75C transmission has 8 forward gears, the gear ratio steps are arranged reasonably, and has very outstanding fuel economy performance. With mechanical structure design and integrated with a synchronizer, and the Maximum input speed is 2600RPM. The length of the 8JS75C transmission is 737.3mm. The 8JS75C manual transmission has 8 gears, and each gear has a different reduction ratio. The 1st gear reduction ratio is 7.339, the 2nd gear reduction ratio is 5.493, the 3rd gear reduction ratio is 3.764, the 4th gear reduction ratio is 2.989, the 5th gear reduction ratio is 1.950, the 6th gear reduction ratio is 1.459, the 7th gear reduction ratio is 1.000, the 8th gear reduction ratio is 0.794,and the reverse gear 1 ratio is 7.339, and the reverse gear 2 ratio is 1.950.The 8JS75C manual transmission has an input torque range of 750 N.m.
FAST 8-speed MT series transmission have different models, with code J in the model name means mechanical transmission, with code S in the model name means transmission with Double Intermediate Shaft design, with code T in the model name means transmission integrated with synchronizer.
DuraMac provides one-stop solutions covers from pre-design to components supply, from installation to commissioning, from pre-sales communication to after-sales service support.
With affordable Chinese level prices, DuraMac provide abundant premium powertrain options to customers that widely used in buses, coaches, trucks, tractors, trailers and special vehicles, speed up process from vehicle design to prototype manufacturing and significantly decrease developing costs.
Advantages of Fast 8JS75C MT Parts
It is synchronized with CMI’ advanced design and sophisticated manufacturing, adapts to harsh working conditions, and has high-intensity and heavy-duty work capabilities.
The Holset wastegate valve makes the low speed performance more perfect and the power performance better.
The cylinder block and cylinder head adopt integrated design to prevent the occurrence of engine water and oil leakage. The parts are 40% less than other similar engines, and the failure rate is greatly reduced.
The cylinder liner adopts a platform mesh honing design, which effectively prevents oil leakage with a perfect geometric structure, and adopts advanced technology such as new piston ring components and gasket crimping molding to reduce oil loss.
Using forged steel camshaft and crankshaft, high-strength cylinder design, many parts are cast on the cylinder, with high rigidity, high pressure resistance, good reliability and longer service life.
Technical Specifications
Basic Introduction of Shaanxi Fast 8JS75C MT
| Transmission Model: | 8JS75C |
| Transmission Application: | Manual Transmission |
| Input Torque: | 750 N.m |
| Maximum Speed: | 2600 RPM |
| Installation length: | 737.3 mm |
| Weight Iron/Al Alloy: | 173/123 Kg |
| Fuel Quantity: | 6 L |
| Speed Ratio: | 7.339-0.794 |
| Lead Time: | 15-30 Working Days |
| Payment Terms: | T/T ,L/C |
Search by Part No. or Part Name
Click Kit Name to Check Part List
- Clutch and Transmission Housing Assembly
- Secondary Shaft Assembly
- Left and Right Countershaft Assemblies
- Primary Shaft Assembly
- Reverse Gear Countershaft Assembly
- Upper Cover Assembly
- Control Device Assembly
- Air Filter Assembly
- Auxiliary Case Drive Gear Assembly
- Auxiliary Case Housing Assembly
No. | Part No. | Name | Qty. | Remarks |
| 1 | JS85T-1701015-1 | Transmission Housing | 1 | — |
| 2 | JS85T-1601016 | Clutch Housing Gasket | 1 | — |
| 3 | Q1421032M | Pre-Coated Hexagon Head Bolt and Spring Washer Assembly | 5 | — |
| 4 | Q1421032 | Hexagon Head Bolt and Spring Washer Assembly | 11 | — |
| 5 | JS85T-1701020-1 | PTO (Power Take-Off) Window Cover | 2 | — |
| 6 | JS85T-1701021-1 | Side PTO Window Gasket | 2 | — |
| 7 | 6JS160T-1709587-1 | Oil Plug | 2 | — |
| 8 | 6JS160T-1709588-1 | O-Ring | 2 | — |
| 9 | 14373 | Round Magnet | 2 | — |
| 10 | A-5000 | Follow-Up Valve Assembly | 1 | — |
| 11 | 20490 | Follow-Up Valve Plunger Pin | 1 | — |
| 12 | 21268-1 | Compression Spring | 1 | — |
| 13 | 14197 | O-Ring | 1 | — |
| 14 | 14033 | O-Ring | 1 | — |
| 15 | 21446-1 | Follow-Up Valve Guide Sleeve | 1 | — |
| 16 | Q1420650 | Hexagon Head Bolt and Spring Washer Assembly | 2 | — |
| 17 | J80A-1601022B-117 | Clutch Release Fork Shaft Welding Assembly | 2 | — |
| 18 | JS85T-1601015 | Clutch Housing | 1 | — |
| 19 | J75-1601035 | Grease Cup Seat | 1 | — |
| 20 | J75-1601034 | Grease Cup Cover | 1 | — |
| 21 | Q1421238M | Pre-Coated Hexagon Head Bolt and Spring Washer Assembly | 1 | — |
| 22 | JS85T-1701042 | Input Shaft Bearing Cover Gasket | 1 | — |
| 23 | F91410 | Input Shaft Bearing Cover Oil Seal | 1 | — |
| 24 | GB3452.1-B1280G | O-Ring | 1 | — |
| 25 | JS85T-1701040 | Input Shaft Bearing Cover | 1 | — |
| 26 | Q1421032M | Pre-Coated Hexagon Head Bolt and Spring Washer Assembly | 3 | — |
| 27 | C09034 | Pre-Coated Hexagon Head Bolt with Hole in Head and Spring Washer Assembly | 2 | — |
| 28 | GB889-80-M16X1.5 | Thin Hexagon Nut with Nylon Ring Lock | 6 | — |
| 29 | Q40116 | Flat Washer | 6 | — |
| 30 | C01056 | Stud Bolt | 6 | — |
| 31 | J75-1601025 | Clutch Release Fork with Pin Assembly | 1 | — |
| 32 | GB27-88-M8X40 | Hexagon Head Bolt for Reamed Hole | 1 | — |
| 33 | Q5510825 | Plain Flat Key | 1 | — |
| 34 | 78CT5759F2 | Clutch Release Bearing Assembly | 1 | — |
| 35 | J75-1601033 | Release Bearing Lubrication Hose Assembly | 1 | — |
| 36 | J75-1601031 | Pipe Fitting | 1 | — |
| 37 | Q40308 | Spring Washer | 2 | — |
| 38 | Q150B0812 | Hexagon Head Bolt | 2 | — |
| 39 | C04004-6 | Clutch Hand Hole Cover | 1 | — |
| ——END—— | ||||
No. | Part No. | Name | Qty. | Remarks |
| 1 | Q43460 | Flattened Wire Retaining Ring for Shaft | 1 | — |
| 2 | JS85E-1701031 | Input Shaft Gear | 1 | — |
| 3 | JS85A-1701107 | 1st/2nd Gear Sliding Sleeve | 1 | — |
| 4 | JS85T-1701105 | Main Shaft | 1 | — |
| 5 | JS85T-1701129 | Long Key | 1 | — |
| 6 | JS85T-1701126 | Splined Washer | 3 | — |
| 7 | JS85T-1701125 | Reverse Gear Sliding Sleeve | 1 | — |
| 8 | JS85T-1701110 | Main Shaft Reverse Gear | 1 | — |
| 9 | JS85T-1701127 | Reverse Gear Splined Washer | 1 | — |
| 10 | JS85C-1701111 | Main Shaft 1st Gear | 1 | — |
| 11 | JS85T-1701126 | Splined Washer | — | — |
| 12 | JS85A-1701106 | 3rd/4th Gear Sliding Sleeve | 1 | — |
| 13 | JS85T-1701126 | Splined Washer | — | — |
| 14 | JS85C-1701112 | Main Shaft 2nd Gear | 1 | — |
| 15 | JS85T-1701124 | 3rd Gear Splined Washer | 1 | — |
| 16 | JS85C-1701113 | Main Shaft Overdrive Gear | 1 | — |
| 17 | JS85T-1701122 | Retaining Ring | 1 | — |
| ——END—— | ||||
No. | Part No. | Name | Qty. | Remarks |
| 1 | NCL306ENV-C3YA | Cylindrical Roller Bearing | 4 | — |
| 2 | Q43372 | Flattened Wire Retaining Ring for Shaft | 2 | — |
| 3 | JS85E-1701056 | Countershaft Drive Gear | 2 | — |
| 4 | JS85T-1701058 | Retaining Ring | 6 | — |
| 5 | JS85T-1701058 | Retaining Ring | — | — |
| 6 | JS85C-1701053 | Countershaft Overdrive Gear | 2 | — |
| 7 | JS85C-1701052 | Countershaft 2nd Gear | 2 | — |
| 8 | JS85T-1701055 | Countershaft Square Key | 2 | — |
| 9 | JS85C-1701048 | Countershaft | 2 | — |
| 10 | Q5280514 | Elastic Cylindrical Pin | 2 | — |
| 11 | NCL306ENV-C3YA | Cylindrical Roller Bearing | — | — |
| 12 | Q43130 | Elastic Retaining Ring for Hole | 4 | — |
| ——END—— | ||||
No. | Part No. | Name | Qty. | Remarks |
| 1 | Q43150 | Elastic Retaining Ring for Shaft | 1 | — |
| 2 | Q43390 | Flattened Wire Elastic Retaining Ring for Shaft | 1 | — |
| 3 | 6210-ZNB | Deep Groove Ball Bearing | 1 | — |
| 4 | JS125T-1701028 | Input Shaft Gear Spacer Washer | 1 | — |
| 5 | Q43460 | Flattened Wire Retaining Ring for Hole | 1 | — |
| 6 | JS85E-1701031 | Input Shaft Gear | 1 | — |
| 7 | JS85T-1701030 | Input Shaft | 1 | — |
| 8 | JS125T-1701026 | Main Shaft Guide Sleeve | 1 | — |
| ——END—— | ||||
No. | Part No. | Name | Qty. | Remarks |
| 1 | GB890-80-M16X1.5 | Nut | 2 | — |
| 2 | 14283 | Reverse Countershaft Washer | 2 | — |
| 3 | 14282 | Reverse Thrust Washer | 2 | — |
| 4 | 14287 | Needle Roller Bearing | 2 | — |
| 5 | JS85T-1701082 | Reverse Counter Gear | 2 | — |
| 6 | JS85T-1701083 | Reverse Countershaft | 2 | — |
| 7 | Q2821212 | Slotted Flat-End Set Screw | 2 | — |
| ——END—— | ||||
No. | Part No. | Name | Qty. | Remarks |
| 1 | 0041KS-1 | Neutral Pressure Switch | 1 | — |
| 2 | 0068DS-1 | Reverse Pressure Switch | 1 | — |
| 3 | Q72318 | Sealing Washer | 1 | — |
| 4 | F96084 | Compression Spring | 3 | — |
| 5 | 12.7G100bGB-T308 | Steel Ball | 3 | — |
| 6 | GB889-80-M12X1.25 | Hexagon Nut with Nylon Ring Lock | 1 | — |
| 7 | Q40112 | Flat Washer | 1 | — |
| 8 | 6JS160T-1709587-1 | Oil Plug | 1 | — |
| 9 | 6JS160T-1709588-1 | O-Ring | — | — |
| 10 | JS85T-1702053 | Reverse Shift Fork Assembly | 1 | — |
| 11 | 3220 | Shift Fork Locking Screw | 3 | — |
| 12 | JS85T-1702063-1 | Reverse Shift Fork Shaft | 1 | — |
| 13 | JS85A-1702057 | 3rd/4th Gear Shift Fork | 1 | — |
| 14 | JS85E-1702056 | 1st/2nd Gear Shift Fork | 1 | — |
| 15 | JS85T-1702065-1 | 3rd/4th Gear Shift Fork Shaft | 1 | — |
| 16 | JS85E-1702064 | 1st/2nd Gear Shift Fork Shaft | 1 | — |
| 17 | JS85A-1702059 | 3rd/4th Gear Shift Guide Block | 1 | — |
| 18 | JS100A-1702072 | Swing Shift Head | 1 | — |
| 19 | JS100A-1702073 | Support Bearing Pin | 1 | — |
| 20 | JS85T-1702015-1 | Top Cover | 1 | — |
| 21 | 19.05G100bGB-T308 | Steel Ball | 2 | — |
| 22 | 1634 | Shift Fork Shaft Interlock Pin | 1 | — |
| 23 | JS125T-1702077-1 | Follow-Up Rod | 1 | — |
| 24 | 1642 | Control Window Gasket | 1 | — |
| 25 | 11066 | Stud Bolt | 2 | — |
| 26 | 14033 | O-Ring | 1 | — |
| 27 | X-1-603 | Hexagon Nut | 2 | — |
| 28 | Q351B10 | Thin Hexagon Nut | 2 | — |
| ——END—— | ||||
No. | Part No. | Name | Qty. | Remarks |
| 1 | J82-1703033-1 | Bowl-Shaped Plug | 1 | — |
| 2 | J82-1703029-5 | Limit Spring | 2 | — |
| 3 | F91345 | Transverse Shift Lever Bushing | 2 | — |
| 4 | JS125T-1703018-1 | Shift Head | 1 | — |
| 5 | JS125T-1703040-1 | Spring Spacer Washer | 1 | — |
| 6 | J82-1703029-5 | Limit Spring | — | — |
| 7 | J82-1703040-1 | Spring Spacer Sleeve | 1 | — |
| 8 | Q43117 | Elastic Retaining Ring for Shaft | 1 | — |
| 8 | F91444 | Oil Seal | 1 | — |
| 9 | Q40310 | Spring Washer | 2 | — |
| 10 | 1709002-3 | Hexagon Head Bolt | 1 | — |
| 11 | JS125T-1703015-1 | Single H Control Device Housing | 1 | — |
| 12 | Q341B10 | Type 1 Hexagon Nut | 2 | — |
| 13 | 15276-1 | Vent Plug | 1 | — |
| 14 | JS125T-1703025-1 | Shift Selection Shaft Assembly | 1 | — |
| 15 | Q72306 | Sealing Washer | 1 | — |
| 16 | 6J80T-1703035 | Oil Seal | 1 | — |
| 17 | 6J80T-1703036 | Oil Seal Cover Plate | 1 | — |
| 18 | JS125T-1703017-7 | Transverse Shift Lever | 1 | — |
| 19 | F96035-45 | Shift Rocker Arm | 1 | — |
| 20 | Q151B1050 | Hexagon Head Bolt | 1 | — |
| 21 | Q40310 | Spring Washer | 1 | — |
| 22 | F99669 | Sleeve | 1 | — |
| 23 | Q341B10 | Type 1 Hexagon Nut | 1 | — |
| ——END—— | ||||
No. | Part No. | Name | Qty. | Remarks |
| 1 | A-4740 | Air Filter Regulator | 1 | — |
| 2 | C01054 | 90° Elbow Pipe Joint | 1 | — |
| 3 | 54015 | CA Bowl-Shaped Plug | 1 | — |
| 4 | GB30-76 | Hexagon Head Bolt M6×60 | 2 | — |
| 5 | 66653 | Air Pipe Assembly | 1 | — |
| 6 | Q618B01 | Hexagon Head Tapered Plug | 2 | — |
| ——END—— | ||||
No. | Part No. | Name | Qty. | Remarks |
| 1 | JS85T-1707022 | Retaining Ring Fixing Ring | 1 | — |
| 2 | Q43375 | Flattened Wire Retaining Ring for Shaft | 1 | — |
| 3 | 6015N | Single-Row Radial Ball Bearing with Retaining Groove | 1 | — |
| 4 | Q433115 | Flattened Wire Retaining Ring for Shaft | 1 | — |
| 5 | JS85T-1707071 | Bearing Positioning Plate | 1 | — |
| 6 | C09032 | Hexagon Head Bolt with Hole in Head | 2 | — |
| 7 | 1819 | Iron Wire | As Required | — |
| 8 | 8JS85TB-1707030 | Auxiliary Case Drive Gear | 1 | — |
| 9 | JS85T-1701123 | Retaining Ring | 1 | — |
| ——END—— | ||||
No. | Part No. | Name | Qty. | Remarks |
| 1 | JS85T-1707015 | Auxiliary Case Housing | 1 | — |
| 2 | JS85T-1707016 | Auxiliary Case Housing Gasket | 1 | — |
| 4 | JS85T-1707156 | Main Shaft Rear Bearing Cover Gasket | 1 | — |
| 5 | JS85T-1707155 | Main Shaft Rear Bearing Cover | 1 | — |
| 6 | Q1421032 | Hexagon Head Bolt and Spring Washer Assembly | 6 | — |
| 7 | Q1421065M | Pre-Coated Hexagon Head Bolt and Spring Washer Assembly | 3 | — |
| 8 | L61-3802033 | Speedometer Drive Gear | 1 | — |
| 11 | J80-1701160 | Dust Cover | 1 | — |
| 12 | J80I-1701159-4 | Flange | 1 | — |
| 13 | J90-1701170 | Flange Nut | 1 | — |
| 14 | Q1421032 | Hexagon Head Bolt and Spring Washer Assembly | 5 | — |
| 15 | Q1421070 | Hexagon Head Bolt and Spring Washer Assembly | 7 | — |
| 16 | Q2140512 | Button Head Cylindrical Screw | 1 | — |
| 16 | Q40305 | Spring Washer | 1 | — |
| 17 | L136-3802034 | Speedometer Driven Gear | 1 | — |
| 18 | J80-1702028 | O-Ring | 1 | — |
| 20 | J80A-3802032B | Speedometer Connector | 1 | — |
| 22 | JS85T-1707067 | Auxiliary Case Shift Fork | 1 | — |
| 23 | Q1421038M | Pre-Coated Hexagon Head Bolt and Spring Washer Assembly | 2 | — |
| 24 | JS85T-1707066 | Auxiliary Case Shift Fork Shaft | 1 | — |
| 25 | JS85T-1707053 | Auxiliary Case Cylinder Assembly Gasket | 1 | — |
| 26 | GB3452.1-16X2.65 | O-Ring | 1 | — |
| 27 | JS85T-1707061 | Auxiliary Case Cylinder | 1 | — |
| 27 | JS125T-1707072 | Pipe Fitting | 1 | — |
| 27 | JS125T-1707073 | Sealing Gasket | 1 | — |
| 29 | GB3452.1-21.2X3.55 | O-Ring | 1 | — |
| 30 | JS85T-1707063 | Auxiliary Case Cylinder Piston | 1 | — |
| 31 | Q40112 | Flat Washer | 1 | — |
| 32 | Q32812 | Type I Hexagon Lock Nut with Non-Metallic Insert | 1 | — |
| 33 | JS85T-1707064 | Auxiliary Case Cylinder Gasket | 1 | — |
| 34 | JS85T-1707062 | Auxiliary Case Cylinder Head | 1 | — |
| 35 | Q1421038 | Hexagon Head Bolt and Spring Washer Assembly | 3 | — |
| 35 | Q1421038M | Pre-Coated Hexagon Head Bolt and Spring Washer Assembly | 1 | — |
| 36 | J80-1701157 | Flat Pad | 1 | — |
| 37 | C01020 | Retaining Ring | 1 | — |
| 38 | 6212N | Deep Groove Ball Bearing | 1 | — |
| 39 | JS85T-1707108 | Auxiliary Case Main Shaft Gear Press Plate | 1 | — |
| 40 | JS85F-1707121 | Auxiliary Case Reduction Gear | 1 | — |
| 41 | JS85T-1707107 | Auxiliary Case Main Shaft Washer | 1 | — |
| 42 | JS85T-1707105 | Auxiliary Case Main Shaft | 1 | — |
| 43 | JS85T-1707161 | Retaining Ring | 2 | — |
| 44 | JS85T-1707140 | Auxiliary Case Synchronizer Assembly | 1 | — |
| 45 | JS85T-1707161 | Retaining Ring | — | — |
| 46 | RN307M-YA | Cylindrical Roller Bearing | 1 | — |
| 47 | Q43135 | Elastic Retaining Ring for Shaft | 1 | — |
| 48 | NJ306EN-C3 | Cylindrical Roller Bearing | 2 | — |
| 49 | Q43372 | Flattened Wire Retaining Ring for Shaft | 2 | — |
| 50 | JS85J-1707056 | Auxiliary Case Countershaft Drive Gear | 2 | — |
| 51 | JS85F-1707048 | Auxiliary Case Countershaft | 2 | — |
| 52 | NF307E | Cylindrical Roller Bearing | 2 | — |
| 53 | JS125T-1707075 | Rear Cover Locating Pin | 2 | — |
| 54 | Q1231635 | Auxiliary Support Stud Bolt | 2 | — |
| ——END—— | ||||
Note: All Above Data are Just for Referenece, All Data Might Change Without Notices or Update, Please Contact Our Sales Team to Confirm All Details Via WhatsApp or Email.
Engine Sale Manual
Installation Drawing
Installation Manual
Operation Manual
Parts Catalogue
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