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Hardened Steel Rocker Arm Shaft Assembly with Precision-Drilled Oil Passages for Isuzu NPR59 4BD1 - OEM Standard Fitment

Hardened Steel Rocker Arm Shaft Assembly with Precision-Drilled Oil Passages for Isuzu NPR59 4BD1 - OEM Standard Fitment

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
Place of Origin
China
Brand Name
YIMI
Certification
ISO/TS16949
Model Number
ISUZU NPR59
Part Number:
WDL11-028, 8-94129551-0, 8941295510
Engine Model:
ISUZU 4BD1 (3.9L Diesel)
Material:
Hardened Steel (shaft), Alloy Steel (rocker Arms)
Oil Passages:
Precision-drilled For Lubrication
Heat Treatment:
Induction-hardened (HRC 55-60)
Cooling Type:
Engine Coolant Circulation
Installation Type:
Direct OEM Replacement
Quality Standard:
OEM Equivalent / ISO
Highlight:

Hardened Steel Rocker Arm Shaft

,

Precision-Drilled Oil Passages Rocker Arm

,

OEM Standard Rocker Arm Shaft

Product Description
Rocker Arm Shaft Assembly WDL11-028 For Isuzu NPR59 4BD1 8-94129551-0 Truck Parts
Product Specifications
Part NumberWDL11-028, 8-94129551-0, 8941295510
Product NameRocker Arm Shaft Assembly / Rocker Shaft
Car ModelISUZU NPR59
Engine ModelISUZU 4BD1 (3.9L Diesel)
Condition100% Brand New
SizeStandard
WeightStandard
OriginChina Mainland
Main MarketMiddle East, Asia, Africa, South America, North America & Europe
PackageNeutral Packing Or Make It As Requested
Warranty6 Months
Price & StockPlease Contact Us To Get More Information
MaterialHigh-strength aluminum alloy & precision bearings
Cooling TypeEngine coolant circulation
InstallationDirect OEM replacement
Quality StandardOEM equivalent / ISO quality control
Hardened Steel Rocker Arm Shaft Assembly with Precision-Drilled Oil Passages for Isuzu NPR59 4BD1 - OEM Standard Fitment 0
Features & Advantages
  • OE Quality: Manufactured to Isuzu dimensional and metallurgical specifications for perfect fit and reliable valve actuation.
  • Precision Ground Shaft: Smooth, hardened surface reduces wear on rocker arm bushings.
  • Integrated Oil Passages: Ensures consistent lubrication to all rocker arm pivot points.
  • Complete Assembly: Includes shaft, rocker arms, springs, and retainers - ready to install.
  • Heat-Treated: Induction-hardening provides wear resistance (HRC 55-60) while maintaining core toughness.
  • Restores Valvetrain Performance: Eliminates tapping noise, uneven valve lift, and oil pressure loss.
  • Direct Replacement: Matches OE bore spacing, mounting holes, and oil feed alignment.
  • Cost-Effective: Affordable alternative to genuine OEM assemblies.
Frequently Asked Questions
Q1: Are you factory or trading company?
A: We're trading company, but we're wholesalers.
Q2: How can I get the price?
A: Please feel free to contact us to learn the price. If with part number, engine model and quantity, we will send the best price as soon as possible.
Q3: What is your terms of packing?
A: Generally, we pack products with neutral packing and outside brown cartons. We also can make it as customers' requirement.
Q4: How about your delivery time?
A: The goods will be sent within 2-5 days if available. Regarding bulk production, delivery time is about 15-45 days after deposit. It depends on the items and quantity of your order.
Q5: What is your terms of delivery and payment?
A: EXW, FOB. Generally, 30% T/T deposit, and balance 70% T/T balance before delivery.
Q6: What is your MOQ?
A: For the products available, we accept any quantity. If out of stock, we need MOQ. Please contact for more details.
Q7: Can you develop new items according to the samples?
A: Yes, we can help to develop new item by your samples.
Q8: What is your sample policy?
A: We can supply sample if available, but customers need to pay the freight cost.
Quality Control
  • Material Verification: Ensures metal brackets meet strength and corrosion-resistance standards.
  • Damping Element Testing: Confirms proper elasticity and fluid integrity (where applicable).
  • Dimensional Accuracy: Verified against OE specifications for precise fit.
  • Visual Inspection: 100% checked for cracks, defects, or manufacturing imperfections.
  • Packaged Safely: Protected to prevent damage during transit.
Packaging and Delivery
  • Neutral export packing or customized packaging available
  • Carton or wooden case for safe transportation
  • Fast delivery for stock items
  • Shipping by Express Air or Sea
Inquiry

For pricing, availability, or bulk purchase of the Rocker Arm Shaft Assembly WDL11-028 For Isuzu NPR59 4BD1 8-94129551-0 Truck Parts, please contact our sales team for a competitive quote and expert technical support.

Products
PRODUCTS DETAILS
Hardened Steel Rocker Arm Shaft Assembly with Precision-Drilled Oil Passages for Isuzu NPR59 4BD1 - OEM Standard Fitment
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
Place of Origin
China
Brand Name
YIMI
Certification
ISO/TS16949
Model Number
ISUZU NPR59
Part Number:
WDL11-028, 8-94129551-0, 8941295510
Engine Model:
ISUZU 4BD1 (3.9L Diesel)
Material:
Hardened Steel (shaft), Alloy Steel (rocker Arms)
Oil Passages:
Precision-drilled For Lubrication
Heat Treatment:
Induction-hardened (HRC 55-60)
Cooling Type:
Engine Coolant Circulation
Installation Type:
Direct OEM Replacement
Quality Standard:
OEM Equivalent / ISO
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
Highlight

Hardened Steel Rocker Arm Shaft

,

Precision-Drilled Oil Passages Rocker Arm

,

OEM Standard Rocker Arm Shaft

Product Description
Rocker Arm Shaft Assembly WDL11-028 For Isuzu NPR59 4BD1 8-94129551-0 Truck Parts
Product Specifications
Part NumberWDL11-028, 8-94129551-0, 8941295510
Product NameRocker Arm Shaft Assembly / Rocker Shaft
Car ModelISUZU NPR59
Engine ModelISUZU 4BD1 (3.9L Diesel)
Condition100% Brand New
SizeStandard
WeightStandard
OriginChina Mainland
Main MarketMiddle East, Asia, Africa, South America, North America & Europe
PackageNeutral Packing Or Make It As Requested
Warranty6 Months
Price & StockPlease Contact Us To Get More Information
MaterialHigh-strength aluminum alloy & precision bearings
Cooling TypeEngine coolant circulation
InstallationDirect OEM replacement
Quality StandardOEM equivalent / ISO quality control
Hardened Steel Rocker Arm Shaft Assembly with Precision-Drilled Oil Passages for Isuzu NPR59 4BD1 - OEM Standard Fitment 0
Features & Advantages
  • OE Quality: Manufactured to Isuzu dimensional and metallurgical specifications for perfect fit and reliable valve actuation.
  • Precision Ground Shaft: Smooth, hardened surface reduces wear on rocker arm bushings.
  • Integrated Oil Passages: Ensures consistent lubrication to all rocker arm pivot points.
  • Complete Assembly: Includes shaft, rocker arms, springs, and retainers - ready to install.
  • Heat-Treated: Induction-hardening provides wear resistance (HRC 55-60) while maintaining core toughness.
  • Restores Valvetrain Performance: Eliminates tapping noise, uneven valve lift, and oil pressure loss.
  • Direct Replacement: Matches OE bore spacing, mounting holes, and oil feed alignment.
  • Cost-Effective: Affordable alternative to genuine OEM assemblies.
Frequently Asked Questions
Q1: Are you factory or trading company?
A: We're trading company, but we're wholesalers.
Q2: How can I get the price?
A: Please feel free to contact us to learn the price. If with part number, engine model and quantity, we will send the best price as soon as possible.
Q3: What is your terms of packing?
A: Generally, we pack products with neutral packing and outside brown cartons. We also can make it as customers' requirement.
Q4: How about your delivery time?
A: The goods will be sent within 2-5 days if available. Regarding bulk production, delivery time is about 15-45 days after deposit. It depends on the items and quantity of your order.
Q5: What is your terms of delivery and payment?
A: EXW, FOB. Generally, 30% T/T deposit, and balance 70% T/T balance before delivery.
Q6: What is your MOQ?
A: For the products available, we accept any quantity. If out of stock, we need MOQ. Please contact for more details.
Q7: Can you develop new items according to the samples?
A: Yes, we can help to develop new item by your samples.
Q8: What is your sample policy?
A: We can supply sample if available, but customers need to pay the freight cost.
Quality Control
  • Material Verification: Ensures metal brackets meet strength and corrosion-resistance standards.
  • Damping Element Testing: Confirms proper elasticity and fluid integrity (where applicable).
  • Dimensional Accuracy: Verified against OE specifications for precise fit.
  • Visual Inspection: 100% checked for cracks, defects, or manufacturing imperfections.
  • Packaged Safely: Protected to prevent damage during transit.
Packaging and Delivery
  • Neutral export packing or customized packaging available
  • Carton or wooden case for safe transportation
  • Fast delivery for stock items
  • Shipping by Express Air or Sea
Inquiry

For pricing, availability, or bulk purchase of the Rocker Arm Shaft Assembly WDL11-028 For Isuzu NPR59 4BD1 8-94129551-0 Truck Parts, please contact our sales team for a competitive quote and expert technical support.

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