Weichai WP12 engine automatic tensioner assembly 1001319530

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Product Details

Product Tags

	1001319530 is Weichai Power's original part number for an automatic belt tensioner assembly (belt tensioning pulley), primarily used on WP12 / WP13 series heavy-duty diesel engines.

Product Information

Name: Weichai WP12 engine automatic tensioner assembly — also known as belt tensioner, automatic tensioner, or generator belt tensioner
Part number nature: Genuine Weichai Power (潍柴动力) OEM part number
Applicable engines: Weichai WP12 and WP13 diesel engines (commonly configured for China III/IV/V/VI emission standards); also seen on some P12/P13 platform variants
Functional location: Automatic tensioning device for the generator, air-conditioning (fan) belt drive system — automatically adjusts belt tension to prevent slippage and abnormal noise
Matching belt: Typically used with WP12/13 multi-ribbed belts (e.g., 612640060176 14PK1134, 612600061361, etc.)
Common matching idler pulley numbers: 612630061185, 612630060004, etc.
Price reference: Genuine OEM parts on Taobao cost approximately ¥145–188; aftermarket/Gates brand parts around ¥75–82

Applicable Vehicle Models

	Basically all vehicles equipped with Weichai WP12 / WP13 engines, mainly including:

						Brand
					

						Representative models

						Shaanxi Automobile (Delong)
					

						Delong X3000, Delong New M3000, Delong F3000
					

						Foton Auman
					

						Auman GTL, Auman EST (Weichai-powered versions)
					

						FAW Jiefang
					

						Jiefang J6 / JH6 (Weichai-powered versions)
					

						Dongfeng Liuzhou Motor (Chenglong)
					

						Chenglong H7 / M7 (Weichai-powered versions)
					

						Sinotruk (CNHTC)
					

						Some HOWO / Steyr models equipped with Weichai engines
					

	Important notes:

The natural gas versions WP12NG/WP13NG on the same platform usually use different tensioner part numbers (e.g., 612600061960, etc.) — please verify against the engine model.
Older WP12 models also use tensioners under different part numbers (e.g., 1000755348), which look similar but are not interchangeable. It's best to provide the engine nameplate number or a photo of the old part when ordering.