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Yimi (Guangzhou) Automotive Parts Co, Ltd

  • China,Guangzhou
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China ISUZU NPR 4HF1 Engine Overhaul Gasket Set with Multi-Layer Steel Head Gasket OEM
China ISUZU NPR 4HF1 Engine Overhaul Gasket Set with Multi-Layer Steel Head Gasket OEM

  1. China ISUZU NPR 4HF1 Engine Overhaul Gasket Set with Multi-Layer Steel Head Gasket OEM
  2. China ISUZU NPR 4HF1 Engine Overhaul Gasket Set with Multi-Layer Steel Head Gasket OEM
  3. China ISUZU NPR 4HF1 Engine Overhaul Gasket Set with Multi-Layer Steel Head Gasket OEM

ISUZU NPR 4HF1 Engine Overhaul Gasket Set with Multi-Layer Steel Head Gasket OEM

  1. MOQ: 20 PCS
  2. Price: Negotiable
  3. Get Latest Price
Head Gasket Bore 112.00 mm
Delivery Time 5-8 Work Days
Engine Displacement 4,334 cc
Packaging Details Neutral Package or as customers’ request
Payment Terms T/T
Cylinder Head Torque 20 N·m (2.0 kgf·m)
Net Weight 1.65 kg (basic)
Supply Ability 10000 pcs/month
Cylinder Head Angle Additional 73° turn angle
Head Gasket Type Multi-Layer Steel (MLS)
Engine Compatibility 4HF1 / 4HF1T (4.334L, 4-cylinder, DI)
Head Gasket Thickness 1.75 mm
Model Number NPR 4HF1
Certification ISO/TS16949
Brand Name YIMI
Place of Origin CHINA

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  1. Product Details
  2. Company Details

Product Specification

Head Gasket Bore 112.00 mm Delivery Time 5-8 Work Days
Engine Displacement 4,334 cc Packaging Details Neutral Package or as customers’ request
Payment Terms T/T Cylinder Head Torque 20 N·m (2.0 kgf·m)
Net Weight 1.65 kg (basic) Supply Ability 10000 pcs/month
Cylinder Head Angle Additional 73° turn angle Head Gasket Type Multi-Layer Steel (MLS)
Engine Compatibility 4HF1 / 4HF1T (4.334L, 4-cylinder, DI) Head Gasket Thickness 1.75 mm
Model Number NPR 4HF1 Certification ISO/TS16949
Brand Name YIMI Place of Origin CHINA
High Light Multi-Layer Steel Head Gasket Engine Overhaul Gasket Set ,OEM Fit Gasket Kit ,4HF1 / 4HF1T Engine Compatibility Full Gasket Set
ISUZU NPR 4HF1 Overhaul Gasket Set 5878139494 5-87813949-1 OEM Fit
Product Overview

The Engine Overhaul Gasket Set with OEM numbers 5878139494 and 5-87813949-1 is a verified direct-fit replacement for ISUZU NPR / NQR / ELF medium-duty trucks equipped with the 4HF1 / 4HF1T 4.3L diesel engine. This complete gasket kit provides all essential seals required for professional engine rebuilding, restoration, and major maintenance.

Part Numbers
5878139494, 5-87813949-1
Engine Model
4HF1 / 4HF1T 4.3L
Head Gasket Type
Multi-Layer Steel (MLS)
Weight
1.65 kg
Working Principle

This engine overhaul gasket set serves as the critical sealing system for the entire engine assembly. Each precision-engineered gasket maintains perfect seals between mating surfaces—cylinder head and engine block, intake and exhaust manifolds, oil pan, valve cover, and all other critical sealing points. Proper sealing is essential for maintaining compression, preventing fluid leaks, and ensuring reliable engine performance under all operating conditions.

Failure Symptoms
  • Coolant or oil seepage at the cylinder head joint with visible fluid traces
  • Compression loss between cylinders causing misfiring, rough idle, and power loss
  • Exhaust gas bubbles in the radiator indicating combustion gases entering the cooling system
  • Oil contamination with coolant creating milky emulsion in the oil or oil slicks in coolant
  • Persistent overheating due to combustion gases in the cooling system
Critical Inspection Note: ISUZU service manuals require that when performing cylinder head removal or engine overhaul, all gaskets in affected sealing paths must be replaced with new units. Reusing old gaskets risks compression loss, fluid leaks, and premature engine failure.
Technical Specifications
Verification ItemData / StandardSource / Method
Part Number (Short)5878139494ISUZU OEM Parts Database
Part Number (Long)5-87813949-1ISUZU OEM Parts Database
Engine Compatibility4HF1 / 4HF1T (4.334L, 4-cylinder, DI)ISUZU application catalog
Head Gasket Thickness1.75 mmDuraPro GSS2127SS2D specification
Head Gasket Bore112.00 mmSTA Parts specification
Cylinder Head Bolt Torque20 N·m + 73° turnISUZU 4HF1 workshop manual
CertificationISO/TS 16949Third-party system audit
Vehicle & Engine Compatibility
BrandModelChassisEngineYears
ISUZUNPRNPR4HF12000–2009
ISUZUNPRNPR4HF11994–2001
ISUZUNQRNQR4HF12000–2009
ISUZUELFNKR / NHR4HF11994–2009
Fitment Verification: To ensure 100% accurate matching, please provide the VIN or chassis number before ordering. We will verify it through the ISUZU global EPC system.
Important Fitment Notes: This gasket set is designed for the 4HF1 and 4HF1T engine family. The head gasket is a multi-layer steel (MLS) type with 1.75 mm thickness and 112.00 mm bore. For engines that have been previously resurfaced, check cylinder head and block deck heights before ordering.
Features & Benefits
Multi-Layer Steel Head GasketSuperior sealing under high combustion pressures
112.00 mm Bore CompatibilityPrecision-matched direct drop-in fit
Complete Overhaul CoverageIncludes all essential gaskets and seals
High-Temperature ResistanceWithstands extreme thermal cycling
OEM-Exact FitmentDirect replacement without modification
ISO/TS 16949 CertifiedFull traceability with material certificates
Installation Guidelines
IMPORTANT: Engine overhaul is a professional-level operation. Must be performed by a qualified diesel engine technician in a clean workshop. All gasket surfaces must be perfectly clean, flat, and free of old gasket material.
Recommended Torque Values
FastenerTorque
Cylinder Head Bolts (Stage 1)20 N·m (2.0 kgf·m)
Cylinder Head Bolts (Stage 2)Additional 73° turn angle
Main Bearing Bolts (Stage 1)80 N·m
Main Bearing Bolts (Stage 2)100 N·m
Connecting Rod Bolts (Stage 1)22 N·m
Connecting Rod Bolts (Stage 2)45 N·m
Packaging & Supply
  • Standard Packaging: Sealed bag + moisture barrier + carton
  • Custom Packaging: Neutral packaging, customer-branded packaging
  • Suitable For: Engine overhaul workshops, ISUZU parts distributors, fleet maintenance centers
  • Supply Capacity: Stable batch supply with batch-level quality reports available

Company Details

Bronze Gleitlager

,

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 and 

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 from Quality China Factory
  • Business Type:

    Manufacturer,Distributor/Wholesaler,Exporter,Trading Company,Seller

  • Year Established:

    2005

  • Total Annual:

    8000000-10000000

  • Employee Number:

    100~150

  • Ecer Certification:

    Verified Supplier

Yimi (Guangzhou) Automotive Parts Co., Ltd. Located in Guangzhou—the economic and transportation hub of Southern China—we are a specialized supplier and exporter with over 20 years of experience in the automotive parts industry. We focus on the production and sales of high-quality ... Yimi (Guangzhou) Automotive Parts Co., Ltd. Located in Guangzhou—the economic and transportation hub of Southern China—we are a specialized supplier and exporter with over 20 years of experience in the automotive parts industry. We focus on the production and sales of high-quality ...

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  • Yimi (Guangzhou) Automotive Parts Co, Ltd
  • Unit 1313, Building 5, Changsheng DDP Fashion Center, No. 17 Dachi Road, Tancun, Shijing Subdistrict, Baiyun District, Guangzhou City.
  • https://www.isuzucarsparts.com/

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