Complete Rocker Arm Set 13257-40F06 for Nissan KA24E Engine Replacement

Product Specifications

Compatible Models

Tired of Valve Train Failures on Your Nissan KA24E? Get the Correct Rocker Arm Set 13257-40F06 Now

Every hour your KA24E-powered pickup or 240SX sits idle due to bent or worn rocker arms costs revenue, delays deliveries, and strains maintenance schedules. Counterfeit or low-tolerance rocker arms cause misfires, oil leaks, and premature camshaft wear — often requiring full valve train disassembly. OEM replacements take weeks and cost up to 45% more than verified aftermarket alternatives.

OEM-Equivalent Quality, Ready to Ship from Guangzhou Warehouse

This complete rocker arm set for Nissan KA24E is manufactured in ISO 9001-certified facilities, undergoes dimensional verification and load-cycle testing before shipment, and meets original Nissan service specifications for geometry, surface hardness, and pivot clearance. Designed for high-mileage fleet use in construction support vehicles and light-duty commercial applications, it delivers consistent performance across thousands of engine hours — just like the factory part, without the wait or markup.

Where This Part Works

This rocker arm set operates under continuous thermal cycling and mechanical stress in real-world environments: urban delivery fleets navigating stop-start traffic, agricultural contractors running extended shifts on uneven terrain, and port logistics operators maintaining tight turnaround windows. In these conditions, precise rocker geometry ensures proper valve lift timing — critical for emissions compliance, fuel efficiency, and avoiding catastrophic valve-to-piston contact. It is a key component in KA24E engine replacement parts for long-term reliability.

Engineering Details That Matter

Each rocker arm is precision-machined from forged SAE 1045 steel, providing superior tensile strength over cast alternatives and resisting deformation under sustained loads above 200 bar hydraulic pressure at the lifter interface. Surface hardness is maintained at HRC 42–46 via controlled induction hardening of the roller tip and pivot surface — directly extending service life beyond 120,000 km in normal operation. Dimensional tolerance is held to ±0.02 mm on all critical interfaces (pushrod cup depth, valve stem contact radius, and mounting bolt hole centerline), ensuring perfect interchangeability with OEM assemblies. A phosphate coating provides corrosion resistance during storage and initial break-in, reducing early wear in humid or coastal operating zones.

The Real Cost of Wrong Parts

A $12 counterfeit rocker arm may save upfront, but risks $2,800+ in labor to reassemble the cylinder head, $450+ in damaged valves or guides, and 3–5 days of vehicle downtime. Industry data shows non-OEM-equivalent rocker arms fail 1.7× faster under standard test cycles (SAE J2430), increasing total cost of ownership by 300% over two years. This 13257-40F06 replacement rocker arm for 1989–1997 Nissan Hardbody meets Nissan’s published torque specs (18–22 N·m), lift ratio (1.5:1), and material certifications — protecting your investment far beyond the invoice price.

Why Customers Trust XUNPO

Packaging & Shipping

• Individually sealed in anti-static blister pack, nested in molded EPE foam inside reinforced corrugated box
• In-stock items ship within 2–5 working days after payment confirmation
• Flexible logistics: DHL/FedEx/UPS express (3–7 days), air freight (7–12 days), or sea freight (25–40 days)
• Real-time tracking number provided upon dispatch
• MOQ: 1 piece — supports urgent field repairs and small-batch rebuilds

Get Your Rocker Arm Set Today

Your KA24E engine shouldn’t wait weeks for a single part. Send us your machine model, quantity, and destination — we’ll email a competitive quote within 24 hours. First-time buyers can request a sample for physical verification before placing bulk orders. Every day your vehicle remains offline is direct operational loss; act now to restore uptime.

Frequently Asked Questions