Basic Info

• OE Part No.: 1329 312 001

• Cross Reference OE: Eurotec 95006241, Euroricambi 95534472

• Product Type: Auxiliary Box Main Shaft Wear Sleeve / Main Shaft Bushing

• Brand: ZF OEM Heavy-Duty Transmission Repair Spare Parts

• Compatible Gearbox: ZF 16S151NMV, 16S1930, 16S2230, 16S2530, 16S2531 Ecosplit4 16-speed manual heavy truck transmission

• Applicable Vehicles: Sinotruk Sitrak/Howo, FAW J6P/J7, MAN TGS/TGX, DAF CF/XF, Iveco Stralis heavy haul tractors

• Material: High-strength alloy steel, outer surface high-frequency quenching, inner hole fine grinding

• Net Weight: approx 0.46kg (reference value)

• Matching Components: Auxiliary box main shaft, reduction planetary gear assembly, thrust washers

• Function: Wear buffer lining for auxiliary box main shaft, isolate direct friction between main shaft and gear inner hole, maintain standard gear meshing clearance

• Category: Heavy Truck ZF 16S Series 16-Speed Transmission Auxiliary Box Reduction System Repair Spare Parts

Material & Advantages

1. Alloy steel blank with outer circle high-frequency quenching treatment, high surface hardness, strong anti-scuffing and wear resistance under long-term high-speed rotation

2. Inner bore ultra-precision grinding, perfect interference press-fit with main shaft, no loose rotation during operation

3. Standard OEM outer diameter, inner diameter and overall length, no reaming or polishing modification required during gearbox overhaul

4. Uniform surface oil storage micro-grooves, continuously form lubricating oil film to reduce dry friction risk

5. Replaceable sacrificial sleeve design, only replace low-cost sleeve instead of expensive main shaft once worn, greatly lower maintenance cost

6. Adapt to long-distance full-load highway logistics, mountain heavy climbing and frequent low-range heavy transport working conditions

Application Scenarios

• Replace scored, thinned, deformed original main shaft sleeve marked 1329 312 001 for ZF 16-speed Ecosplit4 gearbox

• Fix transmission faults including auxiliary box persistent grinding noise, excessive main shaft axial clearance, insufficient low-speed output torque

• Complete auxiliary box planetary reduction assembly disassembly overhaul and regular maintenance for fleets equipped with ZF 16-speed manual gearbox

• Assemble matched main shaft, planetary gear set and thrust washers following official ZF auxiliary box assembly standards

Supply & After-sale

• MOQ: 1 piece

• Warranty: 3–6 months (exclude contaminated transmission oil, improper press-fit installation, overload torque impact and natural abrasion aging)

• Packaging: Independent shockproof foam + sealed carton packaging to protect quenched outer surface from scratch

• Remarks: Confirm gearbox model ZF 16S Ecosplit4 series before order placement; check main shaft surface for burrs before new sleeve pressing installation

Gearboxes assembly include brand ZF, Eaton, FAST, Allison, DONGFENG, DC, Benz, volvo, HOWO, WLY etc. Gearboxes parts includegear, synchronizer, PTO, housing, bearings, shaft, top cover, sensors, wireness, repair kits... etc.

Our products have been exported to more than 50 countries and regions such as Korea, Chile, Russia, Kazakhstan, USA, Ecuador, Turkey, Iran, Africa, Latin America, etc., and have been unanimously recognized by customers.

In the future, we will be committed to creating higher-end quality and more intimate service. And a more comfortable customer experience to build Yongliwei company into an auto parts supplier with excellent corporate culture, scientific development concept and continuous innovation ability.

Shiyan Yongliwei Industry and Trading Co., Ltd. is a modern enterprise integrating design, development, production and sales of gearbox assembly and gearbox parts.

Our company was founded in Hubei province, China, and has been specialized the truck gearboxes in Chinese offline market for 21 years .Our parts are the leader of gearboxes area in the China now.

Our company was set up in the largest truck parts production base in the world –Shiyan city, Hubei, China, to meet the demand for products in the Asia and South American markets, a professional international trade sales team was born in Hubei in 2021.

Shiyan Yongliwei is focusing on creating high quality, high technology and high standard gearboxes and its parts.

* 8000 square meters of large warehouse.

* A number of maritime, land, air transport international logistics companies work closely together.

* To provide you with convenient, fast and low-cost e-commerce one-stop service.