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{"title":"ISUZU NPR 4HG1 TURBO CHARGER ASM 8973267520 704136-0003 8972083520","imgUrl":"https:\/\/img.chinax.com\/nimg\/49\/ea\/f9c869f0e686c77a889c17a84b86-200x200-1\/isuzu_npr_4hg1_turbo_charger_asm_8973267520_704136_0003_8972083520.jpg","attrs":{"Model Number":"NPR 4HG1","Place of Origin":"Made in China","Minimum Order Quantity":"5 PCS","Supply Ability":"10000pcs\/month"}}
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{"title":"BL0CK ASM CYL NPR 4HG1 4HG1-T 4HF1 8982045330","imgUrl":"https:\/\/img.chinax.com\/nimg\/b5\/65\/486b19b43672c3be4efdee332582-200x200-1\/bl0ck_asm_cyl_npr_4hg1_4hg1_t_4hf1_8982045330.jpg","attrs":{"Model Number":"NPR 4HG1 4HG1T 4HF1","Place of Origin":"China","Minimum Order Quantity":"5 PCS","Supply Ability":"10000pcs\/month"}}
{"title":"NPR 700P 4HK1 TURBO CHARGE 8980000311 8970786400","imgUrl":"https:\/\/img.chinax.com\/nimg\/bf\/e4\/ab2ffd604bc21336062bab1561b6-200x200-1\/npr_700p_4hk1_turbo_charge_8980000311_8970786400.jpg","attrs":{"Model Number":"NPR 700P 4HK1","Place of Origin":"China","Minimum Order Quantity":"5 PCS","Supply Ability":"10000pcs\/month"}}
{"title":"NPR 4BD2 3.9L CYLINDER HEAD 8971030270","imgUrl":"https:\/\/img.chinax.com\/nimg\/c0\/a8\/bc770a27bfb7fb839df3007b51a1-200x200-1\/npr_4bd2_3_9l_cylinder_head_8971030270.jpg","attrs":{"Model Number":"NPR 4BD2","Place of Origin":"China","Minimum Order Quantity":"5 PCS","Supply Ability":"10000pcs\/month"}}
Front Right Brake Wheel Cylinder 8-97139820-0 8971398200 8-97022028-1 For ISUZU ELF NKR NPR NQR 4HF1 4BE1 — OEM 1-3/16" (30.16mm) Drum Brake Cylinder With Bleeder
Product Overview
The Front Brake Wheel Cylinder with OEM numbers 8-97139820-0 (also listed as 8971398200, 8-97022028-1, 8970220281) is a verified OEM-grade direct replacement for a wide range of ISUZU light and medium-duty trucks. This critical component converts hydraulic pressure from the brake master cylinder into mechanical force to provide safe and reliable stopping power.
Important Cross-Reference Note: Part numbers 8-97139820-0, 8971398200, 8-97022028-1, and 8970220281 are interchangeable for these applications. The Left-Hand (LH) counterpart is 8-97139821-0 / 8971398210 / 8-97022029-1.
OEM Specification — Verified by ISUZU OEM part numbers
Precision 1-3/16" (30.16mm) Bore — Verified by industry standards
Proven Durability — Constructed from high-grade metal with corrosion-resistant finish
Complete with Bleeder Screw — Easy brake system bleeding during installation
OEM Cross-Reference Verified — Interchangeable with TRW BWN788, Seiken SW-G351, and NAGAMOCHI WC24073F
Failure Symptoms
If your front brake wheel cylinder is failing, you may experience one or more of these symptoms:
Brake Fluid Leakage — Visible fluid seeping from front wheels or inside brake drum
Soft or Spongy Brake Pedal — Pedal feels unusually soft or goes to the floor
Reduced Braking Performance — Vehicle takes longer to stop
Uneven Braking — Vehicle pulls to one side during braking
Contaminated Brake Shoes — Brake fluid soaking into brake shoes
Low Brake Fluid Level — Unexplained drop in brake fluid reservoir
⚠️ Safety Warning: A failing brake wheel cylinder can lead to reduced braking performance and potential brake failure. Prompt replacement is essential. For optimal performance, replace brake wheel cylinders in pairs (both front wheels).
Vehicle & Engine Compatibility
CRITICAL: This wheel cylinder is the Front Right-Hand (RH) unit for RHD vehicles. The Left-Hand (LH) counterpart is 8-97139821-0 / 8971398210 / 8-97022029-1.
Primary Applications:
Brand
Model
Chassis / Series
Engine
Years
ISUZU
ELF
NKR8_, NKQ8_
4HF1, 4BE1
1992-2010
ISUZU
NKR
N-Series
4HF1, 4BE1
1994 onwards
ISUZU
NPR
N-Series
4HF1, 4BE1
1994 onwards
ISUZU
NQR
N-Series
4HF1, 4HG1
1994 onwards
ISUZU
NPS
N-Series
4HF1
1994 onwards
Cross-Reference Part Numbers:
Part Number
Description
Position
8-97139820-0 / 8971398200
Front Brake Wheel Cylinder
Right Hand (RH) / Rearward — This Part
8-97139821-0 / 8971398210
Front Brake Wheel Cylinder
Left Hand (LH) / Rearward — Counterpart
8-97022028-0 / 8970220280
Front Brake Wheel Cylinder
RH (earlier variant)
8-97022029-0 / 8970220290
Front Brake Wheel Cylinder
LH (earlier variant)
Features & Benefits
OEM Specification — ISUZU Genuine Equivalent
Guarantees factory-fit quality and performance — verified by ISUZU OEM part numbers
Precision 1-3/16" (30.16mm) Bore
Delivers consistent hydraulic pressure for reliable braking performance
High-Grade Metal Construction
Provides exceptional durability and heat dissipation under demanding commercial conditions
Corrosion-Resistant Finish
Ensures long-lasting durability in harsh automotive environments
Complete with Bleeder Screw
Facilitates easy brake system bleeding during installation
Direct Bolt-On Fitment
No modifications required — engineered as direct match for original cylinder
100% New — No Core Charge
Guarantees zero wear, immediate braking performance, and full service life
Quality Control & Verification
Our manufacturing and inspection processes ensure every brake wheel cylinder meets or exceeds ISUZU OEM standards.
QC Item
Verification Method
Dimensional Accuracy
Precision inspection to verify 1-3/16" (30.16mm) bore diameter and mounting specifications
Material Composition
High-grade metal analysis to verify structural integrity and heat dissipation
Bore Surface Test
100% surface testing to ensure optimum sealing surface for pressure cups
Leakage Test
100% hydraulic pressure test to guarantee zero fluid leakage
Rubber Component Test
EPDM material verification for heat and corrosion resistance
Durability Cycle Test
500+ hour fatigue testing to verify 200,000+ km service life
Final Assembly Inspection
100% visual and functional inspection before packaging
Installation & Maintenance Recommendations
⚠️ IMPORTANT: Professional Installation Recommended
Replacing brake wheel cylinders is a critical safety procedure. It is strongly recommended to replace them in pairs for balanced braking performance.
Pre-Installation Checklist:
CRITICAL: This is the Front Right-Hand (RH) cylinder — the LH counterpart is 8-97139821-0 / 8971398210
Quantity Required: 2 per vehicle (one for each front wheel)
Inspect brake shoes, drums, and hardware for wear — replace as necessary
Use new brake fluid (DOT 3 or DOT 4) from a sealed container
Critical: Replace wheel cylinders in pairs for balanced braking performance
Maintenance Schedule:
Inspection: Every 50,000 km / 12 months
Fluid Replacement: Every 2 years or 40,000 km
Replacement: Immediately if failure symptoms appear
Packaging & Supply
Packaging: Neutral box, color box, or customer brand package
Pack Quantity: 1 PC
Weight: Approx. 1.089 - 1.15 kg
Suitable for: Wholesale distributors, truck parts retailers, commercial vehicle repair shops, and fleet owners
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 ...