Inlet Valve for Isuzu 4JG2 4JH1 Diesel Engine - High-Alloy Heat-Resistant Steel with 45° or 30° Face Angle - Direct OEM Replacement
Price:
Negotiable
MOQ:
10 pcs
Delivery Time:
5-8 Work Days
Brand:
YIMI
Product Description
Inlet Valve 8-97131729-2 For Isuzu 4JG2 4JH1 Diesel Engine
Precision-engineered intake valve designed for optimal performance in Isuzu 4JG2 and 4JH1 diesel engines. Controls air flow into combustion chamber with perfect sealing for maximum compression and fuel efficiency.
Product Specifications
| Part Numbers | 8-97131729-2, 8971317292, 8-97080214-1, 8970802141 |
|---|---|
| Product Name | Inlet Valve / Intake Valve |
| Vehicle Models | ISUZU NPR, NKR, Rodeo, MU, etc. |
| Engine Models | ISUZU 4JG2 (3.1L Turbo Diesel), 4JH1 (3.0L Turbo Diesel) |
| Condition | 100% Brand New |
| Material | High-strength aluminum alloy & precision bearings |
| Warranty | 6 Months |
Features & Advantages
- OE Quality: Manufactured to Isuzu dimensional and material specifications for perfect fit and long service life
- Heat-Resistant Alloy: Silicon-chromium steel resists oxidation and thermal fatigue
- Hardened Tip: Reduces wear from rocker arm contact
- Precision-Ground Stem: Smooth surface reduces guide wear and ensures proper oil control
- Hardened Valve Face: Provides durable sealing against the valve seat, preventing gas leakage
- Restores Engine Performance: Eliminates compression loss, rough idle, and hard starting
- Direct Replacement: Matches OE length, head diameter, and stem size - no modification required
- Cost-Effective: Affordable alternative to genuine OEM without compromising quality
Vehicle & Engine Compatibility
- Isuzu 4JG2: Rodeo / MU / Wizard / Bighorn / Trooper (1992‑1998)
- Isuzu 4JH1: NPR / NKR (1998‑2006), D‑MAX (early models)
- Also fits industrial 4JG2/4JH1 engines (generators, compressors, forklifts)
Installation Notes
- Remove cylinder head and clean carbon deposits
- Use valve spring compressor to remove old valve
- Clean guide and lubricate new valve stem
- Insert valve, install spring & retainer, compress, and fit keepers
- Lap valve with fine compound (optional but recommended)
- Set valve clearance after head installation
Quality Control
- Material Verification: Alloy composition tested via spectrometer
- Dimensional Inspection: Head diameter, stem diameter, overall length, and keeper groove position verified against OE blueprints
- Hardness Testing: Tip hardness (HRC 45-50) and stem hardness checked
- Surface Finish Inspection: Stem surface roughness measured (Ra ≤ 0.2 μm)
- Straightness Test: Valve stem runout checked (≤ 0.05mm)
- Visual Inspection: 100% checked for cracks, burrs, or surface defects
- Packaged Safely: Valve wrapped in protective plastic or oiled paper, boxed individually or in sets
Packaging and Delivery
Neutral export packing or customized packaging available. Carton or wooden case for safe transportation. Fast delivery for stock items via Express Air or Sea shipping.
Inquiry: For pricing, availability, or bulk purchase of the Inlet Valve 8-97131729-2, please contact our sales team for a competitive quote and expert technical support.
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Company
Yimi (Guangzhou) Automotive Parts Co, Ltd
Location
4F, 7th, No. 2, South Jinguu Road, Huadong Town, Huadu District, Guangzhou City
Contact Person
James