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Ventilation Valve Assembly For ISUZU NKR TFR TFS 8971198870 8942501720 8-97119887-0 8-94250172-0
One-stop ISUZU truck supplier from China . Wholesale or retail ISUZU truck spare parts .This 8971198870 8942501720 8-97119887-0 8-94250172-0 Ventilation Valve Assembly (Ventilation Valve Assembly / Valve Asm Vent / Crankcase Vent Valve (for valve cover)) is our hot sale .We can offer aftermarket quality and China ISUZU quality .We also sale other ISUZU truck spareparts.We support worldwide shipping .For more ,please inquire us .
Description
Engine Valve Cover Crankcase Ventilation Valve Assembly • OE 8-97119887-0
- OE Reference Numbers: 8-97119887-0, 8971198870, 8-94250172-0, 8942501720
- Engine Lineup: Isuzu 4JB1 (2.8L), 4JB1T (Turbo), 4JH1 (3.0L), 4JG2 (3.1L)
- Chassis Compatibility: Isuzu NKR, NPR, 700P, NKR77 commercial truck platforms
- Mounting Location: Cylinder head rocker valve cover breather port
- Function: Blow-by gas pressure regulation & crankcase oil mist separation
- Quality Standards: Genuine China Qingling standard & heavy-duty aftermarket
- Order & Shipping: MOQ 1 Piece • Dispatched in 1–8 working days from Chongqing
On Isuzu 4JB1 and 4JH1 direct-injection diesel engines, the crankcase ventilation valve (breather valve) is mounted directly on the top rocker cover. It controls the evacuation of combustion blow-by vapors from the crankcase back into the air intake system.
When this internal valve mechanism gums up with carbon deposits or oil sludge, excessive crankcase pressure builds up inside the engine. This frequently pushes oil past the crankshaft front and rear main seals, triggers oil weeping around the rocker cover gasket, or forces excessive oil mist into the turbocharger intake. Installing a fresh OE-spec ventilation valve restores balanced internal pressure, controls oil consumption, and ensures compliance with diesel emissions standards.
Key Symptoms of a Failed Breather: Unexplained oil leaks around the oil dipstick tube, smoke coming from the oil filler cap, or high oil accumulation inside the intercooler piping.
Direct Fitment: Our 8-97119887-0 valve assembly matches the original rocker cover mounting flange and breather hose diameter, ensuring 100% plug-and-play installation without custom adapters.
Consolidate your 4JB1, 4JH1, and 4HK1 engine maintenance parts from our central warehouse:
Chongqing Guanglian Qingling Auto Parts Co., Ltd.
Founded in 1997 in the High-tech Zone of Chongqing, China, our company has specialized for 29 years in direct wholesale and export distribution of genuine Qingling Isuzu, Japan OEM, and premium aftermarket commercial vehicle components. We provide comprehensive parts coverage across all Isuzu light, medium, and heavy trucks, as well as selected Hino, Nissan, and Toyota commercial platforms.
Provide your vehicle chassis model, engine code (4JB1, 4JH1), or OE part number to our technical sales team for immediate stock and pricing verification:
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