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Inlet Valve for Isuzu 4JG2 4JH1 Diesel Engine - High-Alloy Heat-Resistant Steel with 45° or 30° Face Angle - Direct OEM Replacement

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Inlet Valve for Isuzu 4JG2 4JH1 Diesel Engine - High-Alloy Heat-Resistant Steel with 45° or 30° Face Angle - Direct OEM Replacement

MOQ:	10 pcs
Price:	Negotiable
Standard Packaging:	Neutral Package or as customers’ request
Delivery Period:	5-8 Work Days
Payment Method:	T/T,Western Union
Supply Capacity:	10000 pcs/month

Detail Information

Product Description

Detail Information

Place of Origin

China

Brand Name

Certification

ISO/TS16949

Model Number

ISUZU FRR, FSR

Part Number:

8-97131729-2, 8971317292, 8-97080214-1, 8970802141

Face Angle:

45° Or 30°

Material:

High-alloy Heat-resistant Steel (silicon-chromium)

Engine Model:

ISUZU 4JG2 (3.1L Turbo Diesel), 4JH1 (3.0L Turbo Diesel)

Stem Hardness:

HRC 45-50

Stem Roughness:

Ra ≤ 0.2 μm

Stem Runout:

≤ 0.05mm

Cooling Type:

Engine Coolant Circulation

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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Inlet Valve for Isuzu 4JG2 4JH1 Diesel Engine - High-Alloy Heat-Resistant Steel with 45° or 30° Face Angle - Direct OEM Replacement

MOQ:	10 pcs
Price:	Negotiable
Standard Packaging:	Neutral Package or as customers’ request
Delivery Period:	5-8 Work Days
Payment Method:	T/T,Western Union
Supply Capacity:	10000 pcs/month

Detail Information

Product Description

Detail Information

Place of Origin

China

Brand Name

YIMI

Certification

ISO/TS16949

Model Number

ISUZU FRR, FSR

Part Number:

8-97131729-2, 8971317292, 8-97080214-1, 8970802141

Face Angle:

45° Or 30°

Material:

High-alloy Heat-resistant Steel (silicon-chromium)

Engine Model:

ISUZU 4JG2 (3.1L Turbo Diesel), 4JH1 (3.0L Turbo Diesel)

Stem Hardness:

HRC 45-50

Stem Roughness:

Ra ≤ 0.2 μm

Stem Runout:

≤ 0.05mm

Cooling Type:

Engine Coolant Circulation

Minimum Order Quantity:

10 pcs

Price:

Negotiable

Packaging Details:

Neutral Package or as customers’ request

Delivery Time:

5-8 Work Days

Payment Terms:

T/T,Western Union

Supply Ability:

10000 pcs/month

Product Description

Inlet Valve 8-97131729-2 For Isuzu 4JG2 4JH1 Diesel Engine

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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