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The Fuel Feed Pump Priming Pump with OEM numbers 1-15761006-0 / 1157610060 (alternate 1-15761006-1 / 1157610061 / 1-15610-006-0 / 1156100060) is a verified direct-fit replacement for ISUZU 6HK1, 4BG1, 6BG1, 6WG1 series diesel engines. This hand priming pump is a critical auxiliary component of the diesel fuel system, responsible for manually pumping fuel before engine start-up or after fuel system service to purge air from the system and ensure smooth engine starting.
How It Works
The fuel feed pump (hand primer pump) is installed near the fuel filter or injection pump, consisting of a manual pumping mechanism (button or handle), diaphragm/plunger, and inlet/outlet valves. When the engine is stopped or air enters the fuel system, the operator manually presses the pumping button, causing the diaphragm/plunger to reciprocate, drawing fuel from the fuel tank through the fuel filter into the pump chamber, then forcing it through the outlet valve into the injection pump. Through repeated operation, air is purged from the fuel system through the air bleed screw until no bubbles are present in the discharged fuel and system pressure returns to normal. This pump ensures that the engine can quickly build fuel pressure during cold starts, after fuel filter replacement, or after fuel system service, solving hard starting and flameout problems caused by air blockage.
Failure Symptoms
Replace immediately if any of these symptoms occur:
No Resistance When Pumping — Pumping button feels soft and cannot build fuel pressure (damaged diaphragm or failed seal)
Fuel Leakage — Visible diesel seepage from pump body or connections (aged seals or cracked housing)
Continuous Air Entry into Fuel System — Engine still hard to start or runs rough after bleeding (internal seal failure allowing air ingress)
Pumping Button Sticking — Button fails to return automatically or is difficult to press (failed internal spring or stuck plunger)
Engine Stalls After Starting — Fuel system cannot maintain pressure (failed check valve in hand pump)
Hard Cold Starting — Extended pumping required for every cold start (degraded pump efficiency)
Verified Technical Data
Installation Success Rate: 98.5% direct fitment rate — confirmed across 167 repair orders (Jan 2024 - Jun 2025)
Unit Net Weight: 0.088kg (88g) — lightweight design for easy installation
Material: Aluminum alloy pump body — durable aluminum construction with precision threading and copper washer seal for leak-free operation
Sealing Method: Copper washer seal — effectively prevents fuel leakage
Operation Type: Manual push-button — ergonomic grip cap for easy manual operation
Connection Type: Standard threaded connection — direct fit to OEM fuel lines, no modification needed
100% Factory Tested: Every hand pump undergoes seal integrity, pumping efficiency, and material integrity testing
Warranty: 12 months
Product Specifications
Part Number:
1-15761006-0 1157610060
Product Name:
Fuel Feed Pump Priming Pump
Car Model:
ISUZU FVR34 6HK1
Engine Model:
ISUZU FVR34 6HK1
Condition:
100% Brand New
Size:
Standard
Weight:
Standard
Origin:
China Mainland
Main Market:
Middle East, Asia, Africa, South America, North America & Europe
Package:
Neutral Packing Or Make It As Requested
Material:
High-strength aluminum alloy & precision bearings
Cooling Type:
Engine coolant circulation
Installation:
Direct OEM replacement
Quality Standard:
OEM equivalent / ISO quality control
Vehicle & Engine Compatibility
Truck Applications:
Brand
Model
Engine
Notes
ISUZU
FVR34
6HK1
Primary fitment
ISUZU
FVR
6HK1 / 6BG1
Primary fitment
ISUZU
FSR
6BG1 / 6BD1
Primary fitment
ISUZU
NPR
4BG1 / 4BD1 / 4HE1
Primary fitment
ISUZU
NQR
4BG1 / 4HE1
Primary fitment
ISUZU
NRR
4HE1
Primary fitment
ISUZU
NPR-HD
4HE1
Primary fitment
Heavy Equipment Applications:
Brand
Model
Engine
Notes
HITACHI
ZX330
6HK1
Primary fitment
135C / 180 / 210 / 225CLC / 470GLC
6HK1 / 4BG1
Primary fitment
JCB
JS160 / JS190 / JS220 / JS330
4BG1 / 6BG1
Compatible fitment
Kobelco
SK120 / SK200SR
6BG1
Compatible fitment
Detailed Engine Compatibility:
Engine Model
Displacement
Description
6HK1
7.8L
6-cylinder turbo diesel engine
4BG1 / 4BG1T
4.3L
4-cylinder diesel engine
6BG1 / 6BG1T
6.5L
6-cylinder diesel engine
6WG1
15.7L
6-cylinder diesel engine
4HE1
4.8L
4-cylinder diesel engine
4HK1
5.2L
4-cylinder turbo diesel engine
Important Installation Notes:
The hand primer pump is a critical maintenance component of the diesel fuel system — seal failure causes air ingress into the fuel system, leading to hard starting and power loss
Recommended to replace fuel filter and copper washers simultaneously when replacing the hand pump for proper sealing
Manually pump fuel to bleed air from the fuel system after installation until no bubbles are present in the discharged fuel
Use a torque wrench to tighten connections to specification — avoid over-tightening which may damage threads
For 100% accurate fitment, please provide VIN or engine model
Features & Benefits
Feature
Benefit + Verification Signal
Aluminum Alloy Pump Body
Durable aluminum construction with precision threading and copper washer seal for leak-free operation — aluminum alloy resists corrosion and is lightweight for diesel fuel system applications
Copper Washer Seal
Effectively prevents fuel leakage and ensures reliable system sealing — copper washer provides excellent sealing performance to prevent air ingress into the fuel system
Ergonomic Grip Cap
Anti-slip button cap for easy manual operation — ergonomic non-slip cap facilitates repeated pumping operation
Standard Threaded Connection
Direct fit to OEM fuel lines with no modification needed — standard threaded interface for easy installation, saving repair time
0.088kg Lightweight Design
Reduces vehicle weight; easy to install — only 88g per unit, convenient installation
Broad Compatibility
Fits ISUZU 6HK1/4BG1/6BG1/6WG1/4HE1/4HK1 engines and FVR34/FSR/NPR/NQR/ZX330/JS220 models
Direct OE Fit Replacement
No modification needed for quick installation — 98.5% direct fitment rate confirmed across 167 repair orders
12-Month Warranty
Peace of mind on manufacturing defects — free replacement within warranty period
IMPORTANT: The hand primer pump is a critical component of the diesel fuel system. Improper installation may cause fuel leakage and air ingress into the fuel system, leading to hard starting and power loss. Installation should be performed by qualified professionals. Ensure the engine is completely cooled and fuel system pressure is released before installation.
Installation Guidelines (Refer to workshop manual):
Safety Prep: Disconnect battery negative terminal; ensure engine is completely cooled; release fuel system pressure
Clean Exterior: Thoroughly clean oil and debris around the hand pump to prevent contaminants from entering the fuel system
Remove Old Hand Pump: Disconnect fuel lines and mounting bolts; remove old hand pump (catch draining fuel)
Clean Mounting Surface: Thoroughly clean mounting surface and threaded connections; remove old seals and debris
Install New Hand Pump: Mount new hand pump in original position; install new copper washers
Tighten Connections: Torque connection bolts and fuel line fittings to workshop manual specification (must use torque wrench)
Manual Bleeding: Repeatedly press hand pump button while opening fuel system air bleed screw until no bubbles are present in discharged fuel
Check for Leaks: Check hand pump and fuel line connections for fuel leaks
Start Engine: Start engine; confirm normal starting, smooth operation, and no abnormal noise
Road Test: Perform road test — confirm normal power, no stalling, no leakage
Maintenance Schedule:
Item
Interval
Fuel Filter Replacement
Every 10,000-20,000 km
Hand Pump Seal Inspection
During each service
Hand Pump Replacement
Must replace when weak pumping, fuel leakage, or hard starting is found
Packaging & Supply
Packaging:Neutral carton / Branded color box / Custom branded packaging
Packaging Unit:1 piece/box
Unit Net Weight:0.088kg (88g)
MOQ:Small orders accepted; volume discounts available
Delivery Time:7-30 days
Target Customers:Truck parts wholesalers, heavy equipment parts suppliers, repair chain stores, fleet purchasers, cross-border e-commerce sellers
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 ...
